| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.content.res; |
| |
| |
| import com.android.internal.util.XmlUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import android.graphics.Movie; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.ColorDrawable; |
| import android.graphics.drawable.Drawable.ConstantState; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.SystemProperties; |
| import android.util.AttributeSet; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.util.TypedValue; |
| import android.util.LongSparseArray; |
| import android.view.Display; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.ref.WeakReference; |
| import java.util.Locale; |
| |
| /** |
| * Class for accessing an application's resources. This sits on top of the |
| * asset manager of the application (accessible through getAssets()) and |
| * provides a higher-level API for getting typed data from the assets. |
| */ |
| public class Resources { |
| static final String TAG = "Resources"; |
| private static final boolean DEBUG_LOAD = false; |
| private static final boolean DEBUG_CONFIG = false; |
| private static final boolean TRACE_FOR_PRELOAD = false; |
| |
| // Use the current SDK version code. If we are a development build, |
| // also allow the previous SDK version + 1. |
| private static final int sSdkVersion = Build.VERSION.SDK_INT |
| + ("REL".equals(Build.VERSION.CODENAME) ? 0 : 1); |
| private static final Object mSync = new Object(); |
| private static Resources mSystem = null; |
| |
| // Information about preloaded resources. Note that they are not |
| // protected by a lock, because while preloading in zygote we are all |
| // single-threaded, and after that these are immutable. |
| private static final LongSparseArray<Drawable.ConstantState> sPreloadedDrawables |
| = new LongSparseArray<Drawable.ConstantState>(); |
| private static final SparseArray<ColorStateList> mPreloadedColorStateLists |
| = new SparseArray<ColorStateList>(); |
| private static final LongSparseArray<Drawable.ConstantState> sPreloadedColorDrawables |
| = new LongSparseArray<Drawable.ConstantState>(); |
| private static boolean mPreloaded; |
| |
| /*package*/ final TypedValue mTmpValue = new TypedValue(); |
| |
| // These are protected by the mTmpValue lock. |
| private final LongSparseArray<WeakReference<Drawable.ConstantState> > mDrawableCache |
| = new LongSparseArray<WeakReference<Drawable.ConstantState> >(); |
| private final SparseArray<WeakReference<ColorStateList> > mColorStateListCache |
| = new SparseArray<WeakReference<ColorStateList> >(); |
| private final LongSparseArray<WeakReference<Drawable.ConstantState> > mColorDrawableCache |
| = new LongSparseArray<WeakReference<Drawable.ConstantState> >(); |
| private boolean mPreloading; |
| |
| /*package*/ TypedArray mCachedStyledAttributes = null; |
| |
| private int mLastCachedXmlBlockIndex = -1; |
| private final int[] mCachedXmlBlockIds = { 0, 0, 0, 0 }; |
| private final XmlBlock[] mCachedXmlBlocks = new XmlBlock[4]; |
| |
| /*package*/ final AssetManager mAssets; |
| private final Configuration mConfiguration = new Configuration(); |
| /*package*/ final DisplayMetrics mMetrics = new DisplayMetrics(); |
| PluralRules mPluralRule; |
| |
| private CompatibilityInfo mCompatibilityInfo; |
| private Display mDefaultDisplay; |
| |
| private static final LongSparseArray<Object> EMPTY_ARRAY = new LongSparseArray<Object>() { |
| @Override |
| public void put(long k, Object o) { |
| throw new UnsupportedOperationException(); |
| } |
| @Override |
| public void append(long k, Object o) { |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| |
| @SuppressWarnings("unchecked") |
| private static <T> LongSparseArray<T> emptySparseArray() { |
| return (LongSparseArray<T>) EMPTY_ARRAY; |
| } |
| |
| /** |
| * This exception is thrown by the resource APIs when a requested resource |
| * can not be found. |
| */ |
| public static class NotFoundException extends RuntimeException { |
| public NotFoundException() { |
| } |
| |
| public NotFoundException(String name) { |
| super(name); |
| } |
| } |
| |
| /** |
| * Create a new Resources object on top of an existing set of assets in an |
| * AssetManager. |
| * |
| * @param assets Previously created AssetManager. |
| * @param metrics Current display metrics to consider when |
| * selecting/computing resource values. |
| * @param config Desired device configuration to consider when |
| * selecting/computing resource values (optional). |
| */ |
| public Resources(AssetManager assets, DisplayMetrics metrics, |
| Configuration config) { |
| this(assets, metrics, config, (CompatibilityInfo) null); |
| } |
| |
| /** |
| * Creates a new Resources object with CompatibilityInfo. |
| * |
| * @param assets Previously created AssetManager. |
| * @param metrics Current display metrics to consider when |
| * selecting/computing resource values. |
| * @param config Desired device configuration to consider when |
| * selecting/computing resource values (optional). |
| * @param compInfo this resource's compatibility info. It will use the default compatibility |
| * info when it's null. |
| * @hide |
| */ |
| public Resources(AssetManager assets, DisplayMetrics metrics, |
| Configuration config, CompatibilityInfo compInfo) { |
| mAssets = assets; |
| mMetrics.setToDefaults(); |
| if (compInfo == null) { |
| mCompatibilityInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; |
| } else { |
| mCompatibilityInfo = compInfo; |
| } |
| updateConfiguration(config, metrics); |
| assets.ensureStringBlocks(); |
| } |
| |
| /** |
| * Return a global shared Resources object that provides access to only |
| * system resources (no application resources), and is not configured for |
| * the current screen (can not use dimension units, does not change based |
| * on orientation, etc). |
| */ |
| public static Resources getSystem() { |
| synchronized (mSync) { |
| Resources ret = mSystem; |
| if (ret == null) { |
| ret = new Resources(); |
| mSystem = ret; |
| } |
| |
| return ret; |
| } |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. The |
| * returned object will be a String if this is a plain string; it will be |
| * some other type of CharSequence if it is styled. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information. |
| */ |
| public CharSequence getText(int id) throws NotFoundException { |
| CharSequence res = mAssets.getResourceText(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("String resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information. |
| */ |
| public CharSequence getQuantityText(int id, int quantity) throws NotFoundException { |
| PluralRules rule = getPluralRule(); |
| CharSequence res = mAssets.getResourceBagText(id, rule.attrForNumber(quantity)); |
| if (res != null) { |
| return res; |
| } |
| res = mAssets.getResourceBagText(id, PluralRules.ID_OTHER); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("Plural resource ID #0x" + Integer.toHexString(id) |
| + " quantity=" + quantity |
| + " item=" + PluralRules.stringForQuantity(rule.quantityForNumber(quantity))); |
| } |
| |
| private PluralRules getPluralRule() { |
| synchronized (mSync) { |
| if (mPluralRule == null) { |
| mPluralRule = PluralRules.ruleForLocale(mConfiguration.locale); |
| } |
| return mPluralRule; |
| } |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. It |
| * will be stripped of any styled text information. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| public String getString(int id) throws NotFoundException { |
| CharSequence res = getText(id); |
| if (res != null) { |
| return res.toString(); |
| } |
| throw new NotFoundException("String resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| |
| /** |
| * Return the string value associated with a particular resource ID, |
| * substituting the format arguments as defined in {@link java.util.Formatter} |
| * and {@link java.lang.String#format}. It will be stripped of any styled text |
| * information. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @param formatArgs The format arguments that will be used for substitution. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| public String getString(int id, Object... formatArgs) throws NotFoundException { |
| String raw = getString(id); |
| return String.format(mConfiguration.locale, raw, formatArgs); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID for a particular |
| * numerical quantity, substituting the format arguments as defined in |
| * {@link java.util.Formatter} and {@link java.lang.String#format}. It will be |
| * stripped of any styled text information. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param quantity The number used to get the correct string for the current language's |
| * plural rules. |
| * @param formatArgs The format arguments that will be used for substitution. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| public String getQuantityString(int id, int quantity, Object... formatArgs) |
| throws NotFoundException { |
| String raw = getQuantityText(id, quantity).toString(); |
| return String.format(mConfiguration.locale, raw, formatArgs); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID for a particular |
| * numerical quantity. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param quantity The number used to get the correct string for the current language's |
| * plural rules. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| public String getQuantityString(int id, int quantity) throws NotFoundException { |
| return getQuantityText(id, quantity).toString(); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. The |
| * returned object will be a String if this is a plain string; it will be |
| * some other type of CharSequence if it is styled. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @param def The default CharSequence to return. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information, or def if id is 0 or not found. |
| */ |
| public CharSequence getText(int id, CharSequence def) { |
| CharSequence res = id != 0 ? mAssets.getResourceText(id) : null; |
| return res != null ? res : def; |
| } |
| |
| /** |
| * Return the styled text array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The styled text array associated with the resource. |
| */ |
| public CharSequence[] getTextArray(int id) throws NotFoundException { |
| CharSequence[] res = mAssets.getResourceTextArray(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("Text array resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return the string array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The string array associated with the resource. |
| */ |
| public String[] getStringArray(int id) throws NotFoundException { |
| String[] res = mAssets.getResourceStringArray(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("String array resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return the int array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The int array associated with the resource. |
| */ |
| public int[] getIntArray(int id) throws NotFoundException { |
| int[] res = mAssets.getArrayIntResource(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("Int array resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return an array of heterogeneous values. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the array values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| */ |
| public TypedArray obtainTypedArray(int id) throws NotFoundException { |
| int len = mAssets.getArraySize(id); |
| if (len < 0) { |
| throw new NotFoundException("Array resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| TypedArray array = getCachedStyledAttributes(len); |
| array.mLength = mAssets.retrieveArray(id, array.mData); |
| array.mIndices[0] = 0; |
| |
| return array; |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID. Unit |
| * conversions are based on the current {@link DisplayMetrics} associated |
| * with the resources. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimensionPixelOffset |
| * @see #getDimensionPixelSize |
| */ |
| public float getDimension(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimension(value.data, mMetrics); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID for use |
| * as an offset in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for you. An offset conversion involves simply |
| * truncating the base value to an integer. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelSize |
| */ |
| public int getDimensionPixelOffset(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimensionPixelOffset( |
| value.data, mMetrics); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID for use |
| * as a size in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for use as a size. A size conversion involves |
| * rounding the base value, and ensuring that a non-zero base value |
| * is at least one pixel in size. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelOffset |
| */ |
| public int getDimensionPixelSize(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimensionPixelSize( |
| value.data, mMetrics); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Retrieve a fractional unit for a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param base The base value of this fraction. In other words, a |
| * standard fraction is multiplied by this value. |
| * @param pbase The parent base value of this fraction. In other |
| * words, a parent fraction (nn%p) is multiplied by this |
| * value. |
| * |
| * @return Attribute fractional value multiplied by the appropriate |
| * base value. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| */ |
| public float getFraction(int id, int base, int pbase) { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_FRACTION) { |
| return TypedValue.complexToFraction(value.data, base, pbase); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID. |
| * Various types of objects will be returned depending on the underlying |
| * resource -- for example, a solid color, PNG image, scalable image, etc. |
| * The Drawable API hides these implementation details. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Drawable An object that can be used to draw this resource. |
| */ |
| public Drawable getDrawable(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| return loadDrawable(value, id); |
| } |
| } |
| |
| /** |
| * Return a movie object associated with the particular resource ID. |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public Movie getMovie(int id) throws NotFoundException { |
| InputStream is = openRawResource(id); |
| Movie movie = Movie.decodeStream(is); |
| try { |
| is.close(); |
| } |
| catch (java.io.IOException e) { |
| // don't care, since the return value is valid |
| } |
| return movie; |
| } |
| |
| /** |
| * Return a color integer associated with a particular resource ID. |
| * If the resource holds a complex |
| * {@link android.content.res.ColorStateList}, then the default color from |
| * the set is returned. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a single color value in the form 0xAARRGGBB. |
| */ |
| public int getColor(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data; |
| } else if (value.type == TypedValue.TYPE_STRING) { |
| ColorStateList csl = loadColorStateList(mTmpValue, id); |
| return csl.getDefaultColor(); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Return a color state list associated with a particular resource ID. The |
| * resource may contain either a single raw color value, or a complex |
| * {@link android.content.res.ColorStateList} holding multiple possible colors. |
| * |
| * @param id The desired resource identifier of a {@link ColorStateList}, |
| * as generated by the aapt tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a ColorStateList object containing either a single |
| * solid color or multiple colors that can be selected based on a state. |
| */ |
| public ColorStateList getColorStateList(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| return loadColorStateList(value, id); |
| } |
| } |
| |
| /** |
| * Return a boolean associated with a particular resource ID. This can be |
| * used with any integral resource value, and will return true if it is |
| * non-zero. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns the boolean value contained in the resource. |
| */ |
| public boolean getBoolean(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data != 0; |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Return an integer associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns the integer value contained in the resource. |
| */ |
| public int getInteger(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data; |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read a view layout |
| * description for the given resource ID. This parser has limited |
| * functionality -- in particular, you can't change its input, and only |
| * the high-level events are available. |
| * |
| * <p>This function is really a simple wrapper for calling |
| * {@link #getXml} with a layout resource. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see #getXml |
| */ |
| public XmlResourceParser getLayout(int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "layout"); |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read an animation |
| * description for the given resource ID. This parser has limited |
| * functionality -- in particular, you can't change its input, and only |
| * the high-level events are available. |
| * |
| * <p>This function is really a simple wrapper for calling |
| * {@link #getXml} with an animation resource. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see #getXml |
| */ |
| public XmlResourceParser getAnimation(int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "anim"); |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read a generic XML |
| * resource for the given resource ID. |
| * |
| * <p>The XmlPullParser implementation returned here has some limited |
| * functionality. In particular, you can't change its input, and only |
| * high-level parsing events are available (since the document was |
| * pre-parsed for you at build time, which involved merging text and |
| * stripping comments). |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see android.util.AttributeSet |
| */ |
| public XmlResourceParser getXml(int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "xml"); |
| } |
| |
| /** |
| * Open a data stream for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset files -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * @param id The resource identifier to open, as generated by the appt |
| * tool. |
| * |
| * @return InputStream Access to the resource data. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public InputStream openRawResource(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| return openRawResource(id, mTmpValue); |
| } |
| } |
| |
| /** |
| * Open a data stream for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset file -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * @param id The resource identifier to open, as generated by the appt tool. |
| * @param value The TypedValue object to hold the resource information. |
| * |
| * @return InputStream Access to the resource data. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| */ |
| public InputStream openRawResource(int id, TypedValue value) throws NotFoundException { |
| getValue(id, value, true); |
| |
| try { |
| return mAssets.openNonAsset(value.assetCookie, value.string.toString(), |
| AssetManager.ACCESS_STREAMING); |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException("File " + value.string.toString() + |
| " from drawable resource ID #0x" + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| } |
| |
| /** |
| * Open a file descriptor for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset files -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * <p>This function only works for resources that are stored in the package |
| * as uncompressed data, which typically includes things like mp3 files |
| * and png images. |
| * |
| * @param id The resource identifier to open, as generated by the appt |
| * tool. |
| * |
| * @return AssetFileDescriptor A new file descriptor you can use to read |
| * the resource. This includes the file descriptor itself, as well as the |
| * offset and length of data where the resource appears in the file. A |
| * null is returned if the file exists but is compressed. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public AssetFileDescriptor openRawResourceFd(int id) throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| |
| try { |
| return mAssets.openNonAssetFd( |
| value.assetCookie, value.string.toString()); |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException( |
| "File " + value.string.toString() |
| + " from drawable resource ID #0x" |
| + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| |
| } |
| } |
| |
| /** |
| * Return the raw data associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param outValue Object in which to place the resource data. |
| * @param resolveRefs If true, a resource that is a reference to another |
| * resource will be followed so that you receive the |
| * actual final resource data. If false, the TypedValue |
| * will be filled in with the reference itself. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public void getValue(int id, TypedValue outValue, boolean resolveRefs) |
| throws NotFoundException { |
| boolean found = mAssets.getResourceValue(id, outValue, resolveRefs); |
| if (found) { |
| return; |
| } |
| throw new NotFoundException("Resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return the raw data associated with a particular resource ID. |
| * See getIdentifier() for information on how names are mapped to resource |
| * IDs, and getString(int) for information on how string resources are |
| * retrieved. |
| * |
| * <p>Note: use of this function is discouraged. It is much more |
| * efficient to retrieve resources by identifier than by name. |
| * |
| * @param name The name of the desired resource. This is passed to |
| * getIdentifier() with a default type of "string". |
| * @param outValue Object in which to place the resource data. |
| * @param resolveRefs If true, a resource that is a reference to another |
| * resource will be followed so that you receive the |
| * actual final resource data. If false, the TypedValue |
| * will be filled in with the reference itself. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public void getValue(String name, TypedValue outValue, boolean resolveRefs) |
| throws NotFoundException { |
| int id = getIdentifier(name, "string", null); |
| if (id != 0) { |
| getValue(id, outValue, resolveRefs); |
| return; |
| } |
| throw new NotFoundException("String resource name " + name); |
| } |
| |
| /** |
| * This class holds the current attribute values for a particular theme. |
| * In other words, a Theme is a set of values for resource attributes; |
| * these are used in conjunction with {@link TypedArray} |
| * to resolve the final value for an attribute. |
| * |
| * <p>The Theme's attributes come into play in two ways: (1) a styled |
| * attribute can explicit reference a value in the theme through the |
| * "?themeAttribute" syntax; (2) if no value has been defined for a |
| * particular styled attribute, as a last resort we will try to find that |
| * attribute's value in the Theme. |
| * |
| * <p>You will normally use the {@link #obtainStyledAttributes} APIs to |
| * retrieve XML attributes with style and theme information applied. |
| */ |
| public final class Theme { |
| /** |
| * Place new attribute values into the theme. The style resource |
| * specified by <var>resid</var> will be retrieved from this Theme's |
| * resources, its values placed into the Theme object. |
| * |
| * <p>The semantics of this function depends on the <var>force</var> |
| * argument: If false, only values that are not already defined in |
| * the theme will be copied from the system resource; otherwise, if |
| * any of the style's attributes are already defined in the theme, the |
| * current values in the theme will be overwritten. |
| * |
| * @param resid The resource ID of a style resource from which to |
| * obtain attribute values. |
| * @param force If true, values in the style resource will always be |
| * used in the theme; otherwise, they will only be used |
| * if not already defined in the theme. |
| */ |
| public void applyStyle(int resid, boolean force) { |
| AssetManager.applyThemeStyle(mTheme, resid, force); |
| } |
| |
| /** |
| * Set this theme to hold the same contents as the theme |
| * <var>other</var>. If both of these themes are from the same |
| * Resources object, they will be identical after this function |
| * returns. If they are from different Resources, only the resources |
| * they have in common will be set in this theme. |
| * |
| * @param other The existing Theme to copy from. |
| */ |
| public void setTo(Theme other) { |
| AssetManager.copyTheme(mTheme, other.mTheme); |
| } |
| |
| /** |
| * Return a StyledAttributes holding the values defined by |
| * <var>Theme</var> which are listed in <var>attrs</var>. |
| * |
| * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| * the array. |
| * |
| * @param attrs The desired attributes. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int, int[]) |
| * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainStyledAttributes(int[] attrs) { |
| int len = attrs.length; |
| TypedArray array = getCachedStyledAttributes(len); |
| array.mRsrcs = attrs; |
| AssetManager.applyStyle(mTheme, 0, 0, 0, attrs, |
| array.mData, array.mIndices); |
| return array; |
| } |
| |
| /** |
| * Return a StyledAttributes holding the values defined by the style |
| * resource <var>resid</var> which are listed in <var>attrs</var>. |
| * |
| * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| * the array. |
| * |
| * @param resid The desired style resource. |
| * @param attrs The desired attributes in the style. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int[]) |
| * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainStyledAttributes(int resid, int[] attrs) |
| throws NotFoundException { |
| int len = attrs.length; |
| TypedArray array = getCachedStyledAttributes(len); |
| array.mRsrcs = attrs; |
| |
| AssetManager.applyStyle(mTheme, 0, resid, 0, attrs, |
| array.mData, array.mIndices); |
| if (false) { |
| int[] data = array.mData; |
| |
| System.out.println("**********************************************************"); |
| System.out.println("**********************************************************"); |
| System.out.println("**********************************************************"); |
| System.out.println("Attributes:"); |
| String s = " Attrs:"; |
| int i; |
| for (i=0; i<attrs.length; i++) { |
| s = s + " 0x" + Integer.toHexString(attrs[i]); |
| } |
| System.out.println(s); |
| s = " Found:"; |
| TypedValue value = new TypedValue(); |
| for (i=0; i<attrs.length; i++) { |
| int d = i*AssetManager.STYLE_NUM_ENTRIES; |
| value.type = data[d+AssetManager.STYLE_TYPE]; |
| value.data = data[d+AssetManager.STYLE_DATA]; |
| value.assetCookie = data[d+AssetManager.STYLE_ASSET_COOKIE]; |
| value.resourceId = data[d+AssetManager.STYLE_RESOURCE_ID]; |
| s = s + " 0x" + Integer.toHexString(attrs[i]) |
| + "=" + value; |
| } |
| System.out.println(s); |
| } |
| return array; |
| } |
| |
| /** |
| * Return a StyledAttributes holding the attribute values in |
| * <var>set</var> |
| * that are listed in <var>attrs</var>. In addition, if the given |
| * AttributeSet specifies a style class (through the "style" attribute), |
| * that style will be applied on top of the base attributes it defines. |
| * |
| * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| * the array. |
| * |
| * <p>When determining the final value of a particular attribute, there |
| * are four inputs that come into play:</p> |
| * |
| * <ol> |
| * <li> Any attribute values in the given AttributeSet. |
| * <li> The style resource specified in the AttributeSet (named |
| * "style"). |
| * <li> The default style specified by <var>defStyleAttr</var> and |
| * <var>defStyleRes</var> |
| * <li> The base values in this theme. |
| * </ol> |
| * |
| * <p>Each of these inputs is considered in-order, with the first listed |
| * taking precedence over the following ones. In other words, if in the |
| * AttributeSet you have supplied <code><Button |
| * textColor="#ff000000"></code>, then the button's text will |
| * <em>always</em> be black, regardless of what is specified in any of |
| * the styles. |
| * |
| * @param set The base set of attribute values. May be null. |
| * @param attrs The desired attributes to be retrieved. |
| * @param defStyleAttr An attribute in the current theme that contains a |
| * reference to a style resource that supplies |
| * defaults values for the StyledAttributes. Can be |
| * 0 to not look for defaults. |
| * @param defStyleRes A resource identifier of a style resource that |
| * supplies default values for the StyledAttributes, |
| * used only if defStyleAttr is 0 or can not be found |
| * in the theme. Can be 0 to not look for defaults. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int[]) |
| * @see #obtainStyledAttributes(int, int[]) |
| */ |
| public TypedArray obtainStyledAttributes(AttributeSet set, |
| int[] attrs, int defStyleAttr, int defStyleRes) { |
| int len = attrs.length; |
| TypedArray array = getCachedStyledAttributes(len); |
| |
| // XXX note that for now we only work with compiled XML files. |
| // To support generic XML files we will need to manually parse |
| // out the attributes from the XML file (applying type information |
| // contained in the resources and such). |
| XmlBlock.Parser parser = (XmlBlock.Parser)set; |
| AssetManager.applyStyle( |
| mTheme, defStyleAttr, defStyleRes, |
| parser != null ? parser.mParseState : 0, attrs, |
| array.mData, array.mIndices); |
| |
| array.mRsrcs = attrs; |
| array.mXml = parser; |
| |
| if (false) { |
| int[] data = array.mData; |
| |
| System.out.println("Attributes:"); |
| String s = " Attrs:"; |
| int i; |
| for (i=0; i<set.getAttributeCount(); i++) { |
| s = s + " " + set.getAttributeName(i); |
| int id = set.getAttributeNameResource(i); |
| if (id != 0) { |
| s = s + "(0x" + Integer.toHexString(id) + ")"; |
| } |
| s = s + "=" + set.getAttributeValue(i); |
| } |
| System.out.println(s); |
| s = " Found:"; |
| TypedValue value = new TypedValue(); |
| for (i=0; i<attrs.length; i++) { |
| int d = i*AssetManager.STYLE_NUM_ENTRIES; |
| value.type = data[d+AssetManager.STYLE_TYPE]; |
| value.data = data[d+AssetManager.STYLE_DATA]; |
| value.assetCookie = data[d+AssetManager.STYLE_ASSET_COOKIE]; |
| value.resourceId = data[d+AssetManager.STYLE_RESOURCE_ID]; |
| s = s + " 0x" + Integer.toHexString(attrs[i]) |
| + "=" + value; |
| } |
| System.out.println(s); |
| } |
| |
| return array; |
| } |
| |
| /** |
| * Retrieve the value of an attribute in the Theme. The contents of |
| * <var>outValue</var> are ultimately filled in by |
| * {@link Resources#getValue}. |
| * |
| * @param resid The resource identifier of the desired theme |
| * attribute. |
| * @param outValue Filled in with the ultimate resource value supplied |
| * by the attribute. |
| * @param resolveRefs If true, resource references will be walked; if |
| * false, <var>outValue</var> may be a |
| * TYPE_REFERENCE. In either case, it will never |
| * be a TYPE_ATTRIBUTE. |
| * |
| * @return boolean Returns true if the attribute was found and |
| * <var>outValue</var> is valid, else false. |
| */ |
| public boolean resolveAttribute(int resid, TypedValue outValue, |
| boolean resolveRefs) { |
| boolean got = mAssets.getThemeValue(mTheme, resid, outValue, resolveRefs); |
| if (false) { |
| System.out.println( |
| "resolveAttribute #" + Integer.toHexString(resid) |
| + " got=" + got + ", type=0x" + Integer.toHexString(outValue.type) |
| + ", data=0x" + Integer.toHexString(outValue.data)); |
| } |
| return got; |
| } |
| |
| /** |
| * Print contents of this theme out to the log. For debugging only. |
| * |
| * @param priority The log priority to use. |
| * @param tag The log tag to use. |
| * @param prefix Text to prefix each line printed. |
| */ |
| public void dump(int priority, String tag, String prefix) { |
| AssetManager.dumpTheme(mTheme, priority, tag, prefix); |
| } |
| |
| protected void finalize() throws Throwable { |
| super.finalize(); |
| mAssets.releaseTheme(mTheme); |
| } |
| |
| /*package*/ Theme() { |
| mAssets = Resources.this.mAssets; |
| mTheme = mAssets.createTheme(); |
| } |
| |
| private final AssetManager mAssets; |
| private final int mTheme; |
| } |
| |
| /** |
| * Generate a new Theme object for this set of Resources. It initially |
| * starts out empty. |
| * |
| * @return Theme The newly created Theme container. |
| */ |
| public final Theme newTheme() { |
| return new Theme(); |
| } |
| |
| /** |
| * Retrieve a set of basic attribute values from an AttributeSet, not |
| * performing styling of them using a theme and/or style resources. |
| * |
| * @param set The current attribute values to retrieve. |
| * @param attrs The specific attributes to be retrieved. |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Theme#obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainAttributes(AttributeSet set, int[] attrs) { |
| int len = attrs.length; |
| TypedArray array = getCachedStyledAttributes(len); |
| |
| // XXX note that for now we only work with compiled XML files. |
| // To support generic XML files we will need to manually parse |
| // out the attributes from the XML file (applying type information |
| // contained in the resources and such). |
| XmlBlock.Parser parser = (XmlBlock.Parser)set; |
| mAssets.retrieveAttributes(parser.mParseState, attrs, |
| array.mData, array.mIndices); |
| |
| array.mRsrcs = attrs; |
| array.mXml = parser; |
| |
| return array; |
| } |
| |
| /** |
| * Store the newly updated configuration. |
| */ |
| public void updateConfiguration(Configuration config, |
| DisplayMetrics metrics) { |
| synchronized (mTmpValue) { |
| int configChanges = 0xfffffff; |
| if (config != null) { |
| configChanges = mConfiguration.updateFrom(config); |
| } |
| if (mConfiguration.locale == null) { |
| mConfiguration.locale = Locale.getDefault(); |
| } |
| if (metrics != null) { |
| mMetrics.setTo(metrics); |
| mMetrics.updateMetrics(mCompatibilityInfo, |
| mConfiguration.orientation, mConfiguration.screenLayout); |
| } |
| mMetrics.scaledDensity = mMetrics.density * mConfiguration.fontScale; |
| |
| String locale = null; |
| if (mConfiguration.locale != null) { |
| locale = mConfiguration.locale.getLanguage(); |
| if (mConfiguration.locale.getCountry() != null) { |
| locale += "-" + mConfiguration.locale.getCountry(); |
| } |
| } |
| int width, height; |
| if (mMetrics.widthPixels >= mMetrics.heightPixels) { |
| width = mMetrics.widthPixels; |
| height = mMetrics.heightPixels; |
| } else { |
| //noinspection SuspiciousNameCombination |
| width = mMetrics.heightPixels; |
| //noinspection SuspiciousNameCombination |
| height = mMetrics.widthPixels; |
| } |
| int keyboardHidden = mConfiguration.keyboardHidden; |
| if (keyboardHidden == Configuration.KEYBOARDHIDDEN_NO |
| && mConfiguration.hardKeyboardHidden |
| == Configuration.HARDKEYBOARDHIDDEN_YES) { |
| keyboardHidden = Configuration.KEYBOARDHIDDEN_SOFT; |
| } |
| mAssets.setConfiguration(mConfiguration.mcc, mConfiguration.mnc, |
| locale, mConfiguration.orientation, |
| mConfiguration.touchscreen, |
| (int)(mMetrics.density*160), mConfiguration.keyboard, |
| keyboardHidden, mConfiguration.navigation, width, height, |
| mConfiguration.screenLayout, mConfiguration.uiMode, sSdkVersion); |
| |
| clearDrawableCache(mDrawableCache, configChanges); |
| clearDrawableCache(mColorDrawableCache, configChanges); |
| |
| mColorStateListCache.clear(); |
| |
| |
| flushLayoutCache(); |
| } |
| synchronized (mSync) { |
| if (mPluralRule != null) { |
| mPluralRule = PluralRules.ruleForLocale(config.locale); |
| } |
| } |
| } |
| |
| private void clearDrawableCache( |
| LongSparseArray<WeakReference<ConstantState>> cache, |
| int configChanges) { |
| int N = cache.size(); |
| if (DEBUG_CONFIG) { |
| Log.d(TAG, "Cleaning up drawables config changes: 0x" |
| + Integer.toHexString(configChanges)); |
| } |
| for (int i=0; i<N; i++) { |
| WeakReference<Drawable.ConstantState> ref = cache.valueAt(i); |
| if (ref != null) { |
| Drawable.ConstantState cs = ref.get(); |
| if (cs != null) { |
| if (Configuration.needNewResources( |
| configChanges, cs.getChangingConfigurations())) { |
| if (DEBUG_CONFIG) { |
| Log.d(TAG, "FLUSHING #0x" |
| + Long.toHexString(mDrawableCache.keyAt(i)) |
| + " / " + cs + " with changes: 0x" |
| + Integer.toHexString(cs.getChangingConfigurations())); |
| } |
| cache.setValueAt(i, null); |
| } else if (DEBUG_CONFIG) { |
| Log.d(TAG, "(Keeping #0x" |
| + Long.toHexString(cache.keyAt(i)) |
| + " / " + cs + " with changes: 0x" |
| + Integer.toHexString(cs.getChangingConfigurations()) |
| + ")"); |
| } |
| } |
| } |
| } |
| cache.clear(); |
| } |
| |
| /** |
| * Update the system resources configuration if they have previously |
| * been initialized. |
| * |
| * @hide |
| */ |
| public static void updateSystemConfiguration(Configuration config, DisplayMetrics metrics) { |
| if (mSystem != null) { |
| mSystem.updateConfiguration(config, metrics); |
| //Log.i(TAG, "Updated system resources " + mSystem |
| // + ": " + mSystem.getConfiguration()); |
| } |
| } |
| |
| /** |
| * Return the current display metrics that are in effect for this resource |
| * object. The returned object should be treated as read-only. |
| * |
| * @return The resource's current display metrics. |
| */ |
| public DisplayMetrics getDisplayMetrics() { |
| return mMetrics; |
| } |
| |
| /** |
| * Return the current configuration that is in effect for this resource |
| * object. The returned object should be treated as read-only. |
| * |
| * @return The resource's current configuration. |
| */ |
| public Configuration getConfiguration() { |
| return mConfiguration; |
| } |
| |
| /** |
| * Return the compatibility mode information for the application. |
| * The returned object should be treated as read-only. |
| * |
| * @return compatibility info. null if the app does not require compatibility mode. |
| * @hide |
| */ |
| public CompatibilityInfo getCompatibilityInfo() { |
| return mCompatibilityInfo; |
| } |
| |
| /** |
| * This is just for testing. |
| * @hide |
| */ |
| public void setCompatibilityInfo(CompatibilityInfo ci) { |
| mCompatibilityInfo = ci; |
| updateConfiguration(mConfiguration, mMetrics); |
| } |
| |
| /** |
| * Return a resource identifier for the given resource name. A fully |
| * qualified resource name is of the form "package:type/entry". The first |
| * two components (package and type) are optional if defType and |
| * defPackage, respectively, are specified here. |
| * |
| * <p>Note: use of this function is discouraged. It is much more |
| * efficient to retrieve resources by identifier than by name. |
| * |
| * @param name The name of the desired resource. |
| * @param defType Optional default resource type to find, if "type/" is |
| * not included in the name. Can be null to require an |
| * explicit type. |
| * @param defPackage Optional default package to find, if "package:" is |
| * not included in the name. Can be null to require an |
| * explicit package. |
| * |
| * @return int The associated resource identifier. Returns 0 if no such |
| * resource was found. (0 is not a valid resource ID.) |
| */ |
| public int getIdentifier(String name, String defType, String defPackage) { |
| try { |
| return Integer.parseInt(name); |
| } catch (Exception e) { |
| // Ignore |
| } |
| return mAssets.getResourceIdentifier(name, defType, defPackage); |
| } |
| |
| /** |
| * Return the full name for a given resource identifier. This name is |
| * a single string of the form "package:type/entry". |
| * |
| * @param resid The resource identifier whose name is to be retrieved. |
| * |
| * @return A string holding the name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourcePackageName |
| * @see #getResourceTypeName |
| * @see #getResourceEntryName |
| */ |
| public String getResourceName(int resid) throws NotFoundException { |
| String str = mAssets.getResourceName(resid); |
| if (str != null) return str; |
| throw new NotFoundException("Unable to find resource ID #0x" |
| + Integer.toHexString(resid)); |
| } |
| |
| /** |
| * Return the package name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose package name is to be |
| * retrieved. |
| * |
| * @return A string holding the package name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourcePackageName(int resid) throws NotFoundException { |
| String str = mAssets.getResourcePackageName(resid); |
| if (str != null) return str; |
| throw new NotFoundException("Unable to find resource ID #0x" |
| + Integer.toHexString(resid)); |
| } |
| |
| /** |
| * Return the type name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose type name is to be |
| * retrieved. |
| * |
| * @return A string holding the type name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourceTypeName(int resid) throws NotFoundException { |
| String str = mAssets.getResourceTypeName(resid); |
| if (str != null) return str; |
| throw new NotFoundException("Unable to find resource ID #0x" |
| + Integer.toHexString(resid)); |
| } |
| |
| /** |
| * Return the entry name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose entry name is to be |
| * retrieved. |
| * |
| * @return A string holding the entry name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourceEntryName(int resid) throws NotFoundException { |
| String str = mAssets.getResourceEntryName(resid); |
| if (str != null) return str; |
| throw new NotFoundException("Unable to find resource ID #0x" |
| + Integer.toHexString(resid)); |
| } |
| |
| /** |
| * Parse a series of {@link android.R.styleable#Extra <extra>} tags from |
| * an XML file. You call this when you are at the parent tag of the |
| * extra tags, and it return once all of the child tags have been parsed. |
| * This will call {@link #parseBundleExtra} for each extra tag encountered. |
| * |
| * @param parser The parser from which to retrieve the extras. |
| * @param outBundle A Bundle in which to place all parsed extras. |
| * @throws XmlPullParserException |
| * @throws IOException |
| */ |
| public void parseBundleExtras(XmlResourceParser parser, Bundle outBundle) |
| throws XmlPullParserException, IOException { |
| int outerDepth = parser.getDepth(); |
| int type; |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } |
| |
| String nodeName = parser.getName(); |
| if (nodeName.equals("extra")) { |
| parseBundleExtra("extra", parser, outBundle); |
| XmlUtils.skipCurrentTag(parser); |
| |
| } else { |
| XmlUtils.skipCurrentTag(parser); |
| } |
| } |
| } |
| |
| /** |
| * Parse a name/value pair out of an XML tag holding that data. The |
| * AttributeSet must be holding the data defined by |
| * {@link android.R.styleable#Extra}. The following value types are supported: |
| * <ul> |
| * <li> {@link TypedValue#TYPE_STRING}: |
| * {@link Bundle#putCharSequence Bundle.putCharSequence()} |
| * <li> {@link TypedValue#TYPE_INT_BOOLEAN}: |
| * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| * <li> {@link TypedValue#TYPE_FIRST_INT}-{@link TypedValue#TYPE_LAST_INT}: |
| * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| * <li> {@link TypedValue#TYPE_FLOAT}: |
| * {@link Bundle#putCharSequence Bundle.putFloat()} |
| * </ul> |
| * |
| * @param tagName The name of the tag these attributes come from; this is |
| * only used for reporting error messages. |
| * @param attrs The attributes from which to retrieve the name/value pair. |
| * @param outBundle The Bundle in which to place the parsed value. |
| * @throws XmlPullParserException If the attributes are not valid. |
| */ |
| public void parseBundleExtra(String tagName, AttributeSet attrs, |
| Bundle outBundle) throws XmlPullParserException { |
| TypedArray sa = obtainAttributes(attrs, |
| com.android.internal.R.styleable.Extra); |
| |
| String name = sa.getString( |
| com.android.internal.R.styleable.Extra_name); |
| if (name == null) { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> requires an android:name attribute at " |
| + attrs.getPositionDescription()); |
| } |
| |
| TypedValue v = sa.peekValue( |
| com.android.internal.R.styleable.Extra_value); |
| if (v != null) { |
| if (v.type == TypedValue.TYPE_STRING) { |
| CharSequence cs = v.coerceToString(); |
| outBundle.putCharSequence(name, cs); |
| } else if (v.type == TypedValue.TYPE_INT_BOOLEAN) { |
| outBundle.putBoolean(name, v.data != 0); |
| } else if (v.type >= TypedValue.TYPE_FIRST_INT |
| && v.type <= TypedValue.TYPE_LAST_INT) { |
| outBundle.putInt(name, v.data); |
| } else if (v.type == TypedValue.TYPE_FLOAT) { |
| outBundle.putFloat(name, v.getFloat()); |
| } else { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> only supports string, integer, float, color, and boolean at " |
| + attrs.getPositionDescription()); |
| } |
| } else { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> requires an android:value or android:resource attribute at " |
| + attrs.getPositionDescription()); |
| } |
| |
| sa.recycle(); |
| } |
| |
| /** |
| * Retrieve underlying AssetManager storage for these resources. |
| */ |
| public final AssetManager getAssets() { |
| return mAssets; |
| } |
| |
| /** |
| * Call this to remove all cached loaded layout resources from the |
| * Resources object. Only intended for use with performance testing |
| * tools. |
| */ |
| public final void flushLayoutCache() { |
| synchronized (mCachedXmlBlockIds) { |
| // First see if this block is in our cache. |
| final int num = mCachedXmlBlockIds.length; |
| for (int i=0; i<num; i++) { |
| mCachedXmlBlockIds[i] = -0; |
| XmlBlock oldBlock = mCachedXmlBlocks[i]; |
| if (oldBlock != null) { |
| oldBlock.close(); |
| } |
| mCachedXmlBlocks[i] = null; |
| } |
| } |
| } |
| |
| /** |
| * Start preloading of resource data using this Resources object. Only |
| * for use by the zygote process for loading common system resources. |
| * {@hide} |
| */ |
| public final void startPreloading() { |
| synchronized (mSync) { |
| if (mPreloaded) { |
| throw new IllegalStateException("Resources already preloaded"); |
| } |
| mPreloaded = true; |
| mPreloading = true; |
| } |
| } |
| |
| /** |
| * Called by zygote when it is done preloading resources, to change back |
| * to normal Resources operation. |
| */ |
| public final void finishPreloading() { |
| if (mPreloading) { |
| mPreloading = false; |
| flushLayoutCache(); |
| } |
| } |
| |
| /*package*/ Drawable loadDrawable(TypedValue value, int id) |
| throws NotFoundException { |
| |
| if (TRACE_FOR_PRELOAD) { |
| // Log only framework resources |
| if ((id >>> 24) == 0x1) { |
| final String name = getResourceName(id); |
| if (name != null) android.util.Log.d("PreloadDrawable", name); |
| } |
| } |
| |
| final long key = (((long) value.assetCookie) << 32) | value.data; |
| boolean isColorDrawable = false; |
| if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT && |
| value.type <= TypedValue.TYPE_LAST_COLOR_INT) { |
| isColorDrawable = true; |
| } |
| Drawable dr = getCachedDrawable(isColorDrawable ? mColorDrawableCache : mDrawableCache, key); |
| |
| if (dr != null) { |
| return dr; |
| } |
| |
| Drawable.ConstantState cs = isColorDrawable ? sPreloadedColorDrawables.get(key) : sPreloadedDrawables.get(key); |
| if (cs != null) { |
| dr = cs.newDrawable(this); |
| } else { |
| if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT && |
| value.type <= TypedValue.TYPE_LAST_COLOR_INT) { |
| dr = new ColorDrawable(value.data); |
| } |
| |
| if (dr == null) { |
| if (value.string == null) { |
| throw new NotFoundException( |
| "Resource is not a Drawable (color or path): " + value); |
| } |
| |
| String file = value.string.toString(); |
| |
| if (DEBUG_LOAD) Log.v(TAG, "Loading drawable for cookie " |
| + value.assetCookie + ": " + file); |
| |
| if (file.endsWith(".xml")) { |
| try { |
| XmlResourceParser rp = loadXmlResourceParser( |
| file, id, value.assetCookie, "drawable"); |
| dr = Drawable.createFromXml(this, rp); |
| rp.close(); |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException( |
| "File " + file + " from drawable resource ID #0x" |
| + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| |
| } else { |
| try { |
| InputStream is = mAssets.openNonAsset( |
| value.assetCookie, file, AssetManager.ACCESS_STREAMING); |
| // System.out.println("Opened file " + file + ": " + is); |
| dr = Drawable.createFromResourceStream(this, value, is, |
| file, null); |
| is.close(); |
| // System.out.println("Created stream: " + dr); |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException( |
| "File " + file + " from drawable resource ID #0x" |
| + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| } |
| } |
| } |
| |
| if (dr != null) { |
| dr.setChangingConfigurations(value.changingConfigurations); |
| cs = dr.getConstantState(); |
| if (cs != null) { |
| if (mPreloading) { |
| if (isColorDrawable) { |
| sPreloadedColorDrawables.put(key, cs); |
| } else { |
| sPreloadedDrawables.put(key, cs); |
| } |
| } else { |
| synchronized (mTmpValue) { |
| //Log.i(TAG, "Saving cached drawable @ #" + |
| // Integer.toHexString(key.intValue()) |
| // + " in " + this + ": " + cs); |
| if (isColorDrawable) { |
| mColorDrawableCache.put(key, new WeakReference<Drawable.ConstantState>(cs)); |
| } else { |
| mDrawableCache.put(key, new WeakReference<Drawable.ConstantState>(cs)); |
| } |
| } |
| } |
| } |
| } |
| |
| return dr; |
| } |
| |
| private Drawable getCachedDrawable( |
| LongSparseArray<WeakReference<ConstantState>> drawableCache, |
| long key) { |
| synchronized (mTmpValue) { |
| WeakReference<Drawable.ConstantState> wr = drawableCache.get(key); |
| if (wr != null) { // we have the key |
| Drawable.ConstantState entry = wr.get(); |
| if (entry != null) { |
| //Log.i(TAG, "Returning cached drawable @ #" + |
| // Integer.toHexString(((Integer)key).intValue()) |
| // + " in " + this + ": " + entry); |
| return entry.newDrawable(this); |
| } |
| else { // our entry has been purged |
| drawableCache.delete(key); |
| } |
| } |
| } |
| return null; |
| } |
| |
| /*package*/ ColorStateList loadColorStateList(TypedValue value, int id) |
| throws NotFoundException { |
| if (TRACE_FOR_PRELOAD) { |
| // Log only framework resources |
| if ((id >>> 24) == 0x1) { |
| final String name = getResourceName(id); |
| if (name != null) android.util.Log.d("PreloadColorStateList", name); |
| } |
| } |
| |
| final int key = (value.assetCookie << 24) | value.data; |
| |
| ColorStateList csl; |
| |
| if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT && |
| value.type <= TypedValue.TYPE_LAST_COLOR_INT) { |
| |
| csl = mPreloadedColorStateLists.get(key); |
| if (csl != null) { |
| return csl; |
| } |
| |
| csl = ColorStateList.valueOf(value.data); |
| if (mPreloading) { |
| mPreloadedColorStateLists.put(key, csl); |
| } |
| |
| return csl; |
| } |
| |
| csl = getCachedColorStateList(key); |
| if (csl != null) { |
| return csl; |
| } |
| |
| csl = mPreloadedColorStateLists.get(key); |
| if (csl != null) { |
| return csl; |
| } |
| |
| if (value.string == null) { |
| throw new NotFoundException( |
| "Resource is not a ColorStateList (color or path): " + value); |
| } |
| |
| String file = value.string.toString(); |
| |
| if (file.endsWith(".xml")) { |
| try { |
| XmlResourceParser rp = loadXmlResourceParser( |
| file, id, value.assetCookie, "colorstatelist"); |
| csl = ColorStateList.createFromXml(this, rp); |
| rp.close(); |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException( |
| "File " + file + " from color state list resource ID #0x" |
| + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| } else { |
| throw new NotFoundException( |
| "File " + file + " from drawable resource ID #0x" |
| + Integer.toHexString(id) + ": .xml extension required"); |
| } |
| |
| if (csl != null) { |
| if (mPreloading) { |
| mPreloadedColorStateLists.put(key, csl); |
| } else { |
| synchronized (mTmpValue) { |
| //Log.i(TAG, "Saving cached color state list @ #" + |
| // Integer.toHexString(key.intValue()) |
| // + " in " + this + ": " + csl); |
| mColorStateListCache.put( |
| key, new WeakReference<ColorStateList>(csl)); |
| } |
| } |
| } |
| |
| return csl; |
| } |
| |
| private ColorStateList getCachedColorStateList(int key) { |
| synchronized (mTmpValue) { |
| WeakReference<ColorStateList> wr = mColorStateListCache.get(key); |
| if (wr != null) { // we have the key |
| ColorStateList entry = wr.get(); |
| if (entry != null) { |
| //Log.i(TAG, "Returning cached color state list @ #" + |
| // Integer.toHexString(((Integer)key).intValue()) |
| // + " in " + this + ": " + entry); |
| return entry; |
| } |
| else { // our entry has been purged |
| mColorStateListCache.delete(key); |
| } |
| } |
| } |
| return null; |
| } |
| |
| /*package*/ XmlResourceParser loadXmlResourceParser(int id, String type) |
| throws NotFoundException { |
| synchronized (mTmpValue) { |
| TypedValue value = mTmpValue; |
| getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_STRING) { |
| return loadXmlResourceParser(value.string.toString(), id, |
| value.assetCookie, type); |
| } |
| throw new NotFoundException( |
| "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| + Integer.toHexString(value.type) + " is not valid"); |
| } |
| } |
| |
| /*package*/ XmlResourceParser loadXmlResourceParser(String file, int id, |
| int assetCookie, String type) throws NotFoundException { |
| if (id != 0) { |
| try { |
| // These may be compiled... |
| synchronized (mCachedXmlBlockIds) { |
| // First see if this block is in our cache. |
| final int num = mCachedXmlBlockIds.length; |
| for (int i=0; i<num; i++) { |
| if (mCachedXmlBlockIds[i] == id) { |
| //System.out.println("**** REUSING XML BLOCK! id=" |
| // + id + ", index=" + i); |
| return mCachedXmlBlocks[i].newParser(); |
| } |
| } |
| |
| // Not in the cache, create a new block and put it at |
| // the next slot in the cache. |
| XmlBlock block = mAssets.openXmlBlockAsset( |
| assetCookie, file); |
| if (block != null) { |
| int pos = mLastCachedXmlBlockIndex+1; |
| if (pos >= num) pos = 0; |
| mLastCachedXmlBlockIndex = pos; |
| XmlBlock oldBlock = mCachedXmlBlocks[pos]; |
| if (oldBlock != null) { |
| oldBlock.close(); |
| } |
| mCachedXmlBlockIds[pos] = id; |
| mCachedXmlBlocks[pos] = block; |
| //System.out.println("**** CACHING NEW XML BLOCK! id=" |
| // + id + ", index=" + pos); |
| return block.newParser(); |
| } |
| } |
| } catch (Exception e) { |
| NotFoundException rnf = new NotFoundException( |
| "File " + file + " from xml type " + type + " resource ID #0x" |
| + Integer.toHexString(id)); |
| rnf.initCause(e); |
| throw rnf; |
| } |
| } |
| |
| throw new NotFoundException( |
| "File " + file + " from xml type " + type + " resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Returns the display adjusted for the Resources' metrics. |
| * @hide |
| */ |
| public Display getDefaultDisplay(Display defaultDisplay) { |
| if (mDefaultDisplay == null) { |
| if (!mCompatibilityInfo.isScalingRequired() && mCompatibilityInfo.supportsScreen()) { |
| // the app supports the display. just use the default one. |
| mDefaultDisplay = defaultDisplay; |
| } else { |
| // display needs adjustment. |
| mDefaultDisplay = Display.createMetricsBasedDisplay( |
| defaultDisplay.getDisplayId(), mMetrics); |
| } |
| } |
| return mDefaultDisplay; |
| } |
| |
| private TypedArray getCachedStyledAttributes(int len) { |
| synchronized (mTmpValue) { |
| TypedArray attrs = mCachedStyledAttributes; |
| if (attrs != null) { |
| mCachedStyledAttributes = null; |
| |
| attrs.mLength = len; |
| int fullLen = len * AssetManager.STYLE_NUM_ENTRIES; |
| if (attrs.mData.length >= fullLen) { |
| return attrs; |
| } |
| attrs.mData = new int[fullLen]; |
| attrs.mIndices = new int[1+len]; |
| return attrs; |
| } |
| return new TypedArray(this, |
| new int[len*AssetManager.STYLE_NUM_ENTRIES], |
| new int[1+len], len); |
| } |
| } |
| |
| private Resources() { |
| mAssets = AssetManager.getSystem(); |
| // NOTE: Intentionally leaving this uninitialized (all values set |
| // to zero), so that anyone who tries to do something that requires |
| // metrics will get a very wrong value. |
| mConfiguration.setToDefaults(); |
| mMetrics.setToDefaults(); |
| updateConfiguration(null, null); |
| mAssets.ensureStringBlocks(); |
| mCompatibilityInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; |
| } |
| } |
