| /* |
| * Copyright (C) 2010 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 com.android.internal.widget; |
| |
| import com.android.internal.R; |
| import com.android.internal.view.menu.ActionMenuItem; |
| import com.android.internal.view.menu.ActionMenuPresenter; |
| import com.android.internal.view.menu.ActionMenuView; |
| import com.android.internal.view.menu.MenuBuilder; |
| import com.android.internal.view.menu.MenuPresenter; |
| |
| import android.app.ActionBar; |
| import android.app.ActionBar.OnNavigationListener; |
| import android.app.Activity; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.text.TextUtils; |
| import android.text.TextUtils.TruncateAt; |
| import android.util.AttributeSet; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewParent; |
| import android.view.Window; |
| import android.widget.AdapterView; |
| import android.widget.FrameLayout; |
| import android.widget.HorizontalScrollView; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.ProgressBar; |
| import android.widget.Spinner; |
| import android.widget.SpinnerAdapter; |
| import android.widget.TextView; |
| |
| /** |
| * @hide |
| */ |
| public class ActionBarView extends AbsActionBarView { |
| private static final String TAG = "ActionBarView"; |
| |
| /** |
| * Display options applied by default |
| */ |
| public static final int DISPLAY_DEFAULT = 0; |
| |
| /** |
| * Display options that require re-layout as opposed to a simple invalidate |
| */ |
| private static final int DISPLAY_RELAYOUT_MASK = |
| ActionBar.DISPLAY_SHOW_HOME | |
| ActionBar.DISPLAY_USE_LOGO | |
| ActionBar.DISPLAY_HOME_AS_UP | |
| ActionBar.DISPLAY_SHOW_CUSTOM | |
| ActionBar.DISPLAY_SHOW_TITLE; |
| |
| private static final int DEFAULT_CUSTOM_GRAVITY = Gravity.LEFT | Gravity.CENTER_VERTICAL; |
| |
| private final int mContentHeight; |
| |
| private int mNavigationMode; |
| private int mDisplayOptions = ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP; |
| private CharSequence mTitle; |
| private CharSequence mSubtitle; |
| private Drawable mIcon; |
| private Drawable mLogo; |
| |
| private View mHomeLayout; |
| private View mHomeAsUpView; |
| private ImageView mIconView; |
| private LinearLayout mTitleLayout; |
| private TextView mTitleView; |
| private TextView mSubtitleView; |
| private Spinner mSpinner; |
| private LinearLayout mListNavLayout; |
| private HorizontalScrollView mTabScrollView; |
| private ViewGroup mTabLayout; |
| private View mCustomNavView; |
| private ProgressBar mProgressView; |
| private ProgressBar mIndeterminateProgressView; |
| |
| private int mProgressBarPadding; |
| private int mItemPadding; |
| |
| private int mTitleStyleRes; |
| private int mSubtitleStyleRes; |
| private int mProgressStyle; |
| private int mIndeterminateProgressStyle; |
| |
| private boolean mSplitActionBar; |
| private boolean mUserTitle; |
| private boolean mIncludeTabs; |
| |
| private MenuBuilder mOptionsMenu; |
| |
| private ActionBarContextView mContextView; |
| |
| private ActionMenuItem mLogoNavItem; |
| |
| private SpinnerAdapter mSpinnerAdapter; |
| private OnNavigationListener mCallback; |
| |
| private final AdapterView.OnItemSelectedListener mNavItemSelectedListener = |
| new AdapterView.OnItemSelectedListener() { |
| public void onItemSelected(AdapterView parent, View view, int position, long id) { |
| if (mCallback != null) { |
| mCallback.onNavigationItemSelected(position, id); |
| } |
| } |
| public void onNothingSelected(AdapterView parent) { |
| // Do nothing |
| } |
| }; |
| |
| private OnClickListener mTabClickListener = null; |
| |
| public ActionBarView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| |
| // Background is always provided by the container. |
| setBackgroundResource(0); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ActionBar); |
| |
| ApplicationInfo appInfo = context.getApplicationInfo(); |
| PackageManager pm = context.getPackageManager(); |
| mNavigationMode = a.getInt(R.styleable.ActionBar_navigationMode, |
| ActionBar.NAVIGATION_MODE_STANDARD); |
| mTitle = a.getText(R.styleable.ActionBar_title); |
| mSubtitle = a.getText(R.styleable.ActionBar_subtitle); |
| |
| mLogo = a.getDrawable(R.styleable.ActionBar_logo); |
| if (mLogo == null) { |
| if (context instanceof Activity) { |
| try { |
| mLogo = pm.getActivityLogo(((Activity) context).getComponentName()); |
| } catch (NameNotFoundException e) { |
| Log.e(TAG, "Activity component name not found!", e); |
| } |
| } |
| if (mLogo == null) { |
| mLogo = appInfo.loadLogo(pm); |
| } |
| } |
| |
| mIcon = a.getDrawable(R.styleable.ActionBar_icon); |
| if (mIcon == null) { |
| if (context instanceof Activity) { |
| try { |
| mIcon = pm.getActivityIcon(((Activity) context).getComponentName()); |
| } catch (NameNotFoundException e) { |
| Log.e(TAG, "Activity component name not found!", e); |
| } |
| } |
| if (mIcon == null) { |
| mIcon = appInfo.loadIcon(pm); |
| } |
| } |
| |
| final LayoutInflater inflater = LayoutInflater.from(context); |
| |
| final int homeResId = a.getResourceId( |
| com.android.internal.R.styleable.ActionBar_homeLayout, |
| com.android.internal.R.layout.action_bar_home); |
| |
| mHomeLayout = inflater.inflate(homeResId, this, false); |
| |
| mHomeAsUpView = mHomeLayout.findViewById(com.android.internal.R.id.up); |
| mIconView = (ImageView) mHomeLayout.findViewById(com.android.internal.R.id.home); |
| |
| mTitleStyleRes = a.getResourceId(R.styleable.ActionBar_titleTextStyle, 0); |
| mSubtitleStyleRes = a.getResourceId(R.styleable.ActionBar_subtitleTextStyle, 0); |
| mProgressStyle = a.getResourceId(R.styleable.ActionBar_progressBarStyle, 0); |
| mIndeterminateProgressStyle = a.getResourceId( |
| R.styleable.ActionBar_indeterminateProgressStyle, 0); |
| |
| mProgressBarPadding = a.getDimensionPixelOffset(R.styleable.ActionBar_progressBarPadding, 0); |
| mItemPadding = a.getDimensionPixelOffset(R.styleable.ActionBar_itemPadding, 0); |
| |
| mIncludeTabs = a.getBoolean(R.styleable.ActionBar_embeddedTabs, true); |
| |
| setDisplayOptions(a.getInt(R.styleable.ActionBar_displayOptions, DISPLAY_DEFAULT)); |
| |
| final int customNavId = a.getResourceId(R.styleable.ActionBar_customNavigationLayout, 0); |
| if (customNavId != 0) { |
| mCustomNavView = (View) inflater.inflate(customNavId, this, false); |
| mNavigationMode = ActionBar.NAVIGATION_MODE_STANDARD; |
| setDisplayOptions(mDisplayOptions | ActionBar.DISPLAY_SHOW_CUSTOM); |
| } |
| |
| mContentHeight = a.getLayoutDimension(R.styleable.ActionBar_height, 0); |
| |
| a.recycle(); |
| |
| mLogoNavItem = new ActionMenuItem(context, 0, android.R.id.home, 0, 0, mTitle); |
| mHomeLayout.setOnClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| Context context = getContext(); |
| if (context instanceof Activity) { |
| Activity activity = (Activity) context; |
| activity.onMenuItemSelected(Window.FEATURE_OPTIONS_PANEL, mLogoNavItem); |
| } |
| } |
| }); |
| mHomeLayout.setClickable(true); |
| mHomeLayout.setFocusable(true); |
| } |
| |
| @Override |
| public boolean shouldDelayChildPressedState() { |
| return false; |
| } |
| |
| public void initProgress() { |
| mProgressView = new ProgressBar(mContext, null, 0, mProgressStyle); |
| mProgressView.setId(R.id.progress_horizontal); |
| mProgressView.setMax(10000); |
| addView(mProgressView); |
| } |
| |
| public void initIndeterminateProgress() { |
| mIndeterminateProgressView = new ProgressBar(mContext, null, 0, |
| mIndeterminateProgressStyle); |
| mIndeterminateProgressView.setId(R.id.progress_circular); |
| addView(mIndeterminateProgressView); |
| } |
| |
| public void setSplitActionBar(boolean splitActionBar) { |
| if (mSplitActionBar != splitActionBar) { |
| if (mMenuView != null) { |
| if (splitActionBar) { |
| removeView(mMenuView); |
| if (mSplitView != null) { |
| mSplitView.addView(mMenuView); |
| } |
| } else { |
| addView(mMenuView); |
| } |
| } |
| mSplitActionBar = splitActionBar; |
| } |
| } |
| |
| public boolean isSplitActionBar() { |
| return mSplitActionBar; |
| } |
| |
| public boolean hasEmbeddedTabs() { |
| return mIncludeTabs; |
| } |
| |
| public void setExternalTabLayout(ViewGroup tabLayout) { |
| mTabLayout = tabLayout; |
| } |
| |
| public void setCallback(OnNavigationListener callback) { |
| mCallback = callback; |
| } |
| |
| public void setMenu(Menu menu, MenuPresenter.Callback cb) { |
| if (menu == mOptionsMenu) return; |
| |
| if (mOptionsMenu != null) { |
| mOptionsMenu.removeMenuPresenter(mMenuPresenter); |
| } |
| |
| MenuBuilder builder = (MenuBuilder) menu; |
| mOptionsMenu = builder; |
| if (mMenuView != null) { |
| removeView(mMenuView); |
| } |
| if (mMenuPresenter == null) { |
| mMenuPresenter = new ActionMenuPresenter(); |
| mMenuPresenter.setCallback(cb); |
| builder.addMenuPresenter(mMenuPresenter); |
| } |
| final ActionMenuView menuView = (ActionMenuView) mMenuPresenter.getMenuView(this); |
| final LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, |
| LayoutParams.MATCH_PARENT); |
| menuView.setLayoutParams(layoutParams); |
| if (!mSplitActionBar) { |
| addView(menuView); |
| } else { |
| // Allow full screen width in split mode. |
| mMenuPresenter.setWidthLimit( |
| getContext().getResources().getDisplayMetrics().widthPixels, true); |
| // No limit to the item count; use whatever will fit. |
| mMenuPresenter.setItemLimit(Integer.MAX_VALUE); |
| // Span the whole width |
| layoutParams.width = LayoutParams.MATCH_PARENT; |
| if (mSplitView != null) { |
| mSplitView.addView(menuView); |
| } // We'll add this later if we missed it this time. |
| } |
| mMenuView = menuView; |
| } |
| |
| public void setCustomNavigationView(View view) { |
| final boolean showCustom = (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0; |
| if (mCustomNavView != null && showCustom) { |
| removeView(mCustomNavView); |
| } |
| mCustomNavView = view; |
| if (mCustomNavView != null && showCustom) { |
| addView(mCustomNavView); |
| } |
| } |
| |
| public CharSequence getTitle() { |
| return mTitle; |
| } |
| |
| /** |
| * Set the action bar title. This will always replace or override window titles. |
| * @param title Title to set |
| * |
| * @see #setWindowTitle(CharSequence) |
| */ |
| public void setTitle(CharSequence title) { |
| mUserTitle = true; |
| setTitleImpl(title); |
| } |
| |
| /** |
| * Set the window title. A window title will always be replaced or overridden by a user title. |
| * @param title Title to set |
| * |
| * @see #setTitle(CharSequence) |
| */ |
| public void setWindowTitle(CharSequence title) { |
| if (!mUserTitle) { |
| setTitleImpl(title); |
| } |
| } |
| |
| private void setTitleImpl(CharSequence title) { |
| mTitle = title; |
| if (mTitleView != null) { |
| mTitleView.setText(title); |
| mTitleLayout.setVisibility(TextUtils.isEmpty(mTitle) && TextUtils.isEmpty(mSubtitle) ? |
| GONE : VISIBLE); |
| } |
| if (mLogoNavItem != null) { |
| mLogoNavItem.setTitle(title); |
| } |
| } |
| |
| public CharSequence getSubtitle() { |
| return mSubtitle; |
| } |
| |
| public void setSubtitle(CharSequence subtitle) { |
| mSubtitle = subtitle; |
| if (mSubtitleView != null) { |
| mSubtitleView.setText(subtitle); |
| mSubtitleView.setVisibility(subtitle != null ? VISIBLE : GONE); |
| mTitleLayout.setVisibility(TextUtils.isEmpty(mTitle) && TextUtils.isEmpty(mSubtitle) ? |
| GONE : VISIBLE); |
| } |
| } |
| |
| public void setDisplayOptions(int options) { |
| final int flagsChanged = options ^ mDisplayOptions; |
| mDisplayOptions = options; |
| |
| if ((flagsChanged & ActionBar.DISPLAY_DISABLE_HOME) != 0) { |
| final boolean disableHome = (options & ActionBar.DISPLAY_DISABLE_HOME) != 0; |
| mHomeLayout.setEnabled(!disableHome); |
| } |
| |
| if ((flagsChanged & DISPLAY_RELAYOUT_MASK) != 0) { |
| final int vis = (options & ActionBar.DISPLAY_SHOW_HOME) != 0 ? VISIBLE : GONE; |
| mHomeLayout.setVisibility(vis); |
| |
| if ((flagsChanged & ActionBar.DISPLAY_HOME_AS_UP) != 0) { |
| final boolean isUp = (options & ActionBar.DISPLAY_HOME_AS_UP) != 0; |
| mHomeAsUpView.setVisibility(isUp ? VISIBLE : GONE); |
| } |
| |
| if ((flagsChanged & ActionBar.DISPLAY_USE_LOGO) != 0) { |
| final boolean logoVis = mLogo != null && (options & ActionBar.DISPLAY_USE_LOGO) != 0; |
| mIconView.setImageDrawable(logoVis ? mLogo : mIcon); |
| } |
| |
| if ((flagsChanged & ActionBar.DISPLAY_SHOW_TITLE) != 0) { |
| if ((options & ActionBar.DISPLAY_SHOW_TITLE) != 0) { |
| initTitle(); |
| } else { |
| removeView(mTitleLayout); |
| } |
| } |
| |
| if ((flagsChanged & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) { |
| if ((options & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { |
| addView(mCustomNavView); |
| } else { |
| removeView(mCustomNavView); |
| } |
| } |
| |
| requestLayout(); |
| } else { |
| invalidate(); |
| } |
| |
| // Make sure the home button has an accurate content description for accessibility. |
| if ((options & ActionBar.DISPLAY_DISABLE_HOME) != 0) { |
| mHomeLayout.setContentDescription(null); |
| } else if ((options & ActionBar.DISPLAY_HOME_AS_UP) != 0) { |
| mHomeLayout.setContentDescription(mContext.getResources().getText( |
| R.string.action_bar_up_description)); |
| } else { |
| mHomeLayout.setContentDescription(mContext.getResources().getText( |
| R.string.action_bar_home_description)); |
| } |
| } |
| |
| public void setIcon(Drawable icon) { |
| mIcon = icon; |
| if (icon != null && |
| ((mDisplayOptions & ActionBar.DISPLAY_USE_LOGO) == 0 || mLogo == null)) { |
| mIconView.setImageDrawable(icon); |
| } |
| } |
| |
| public void setIcon(int resId) { |
| setIcon(mContext.getResources().getDrawableForDensity(resId, getPreferredIconDensity())); |
| } |
| |
| public void setLogo(Drawable logo) { |
| mLogo = logo; |
| if (logo != null && (mDisplayOptions & ActionBar.DISPLAY_USE_LOGO) != 0) { |
| mIconView.setImageDrawable(logo); |
| } |
| } |
| |
| public void setLogo(int resId) { |
| mContext.getResources().getDrawable(resId); |
| } |
| |
| /** |
| * @return Drawable density to load that will best fit the available height. |
| */ |
| private int getPreferredIconDensity() { |
| final Resources res = mContext.getResources(); |
| final int availableHeight = getLayoutParams().height - |
| mIconView.getPaddingTop() - mIconView.getPaddingBottom(); |
| int iconSize = res.getDimensionPixelSize(android.R.dimen.app_icon_size); |
| |
| if (iconSize * DisplayMetrics.DENSITY_LOW >= availableHeight) { |
| return DisplayMetrics.DENSITY_LOW; |
| } else if (iconSize * DisplayMetrics.DENSITY_MEDIUM >= availableHeight) { |
| return DisplayMetrics.DENSITY_MEDIUM; |
| } else if (iconSize * DisplayMetrics.DENSITY_HIGH >= availableHeight) { |
| return DisplayMetrics.DENSITY_HIGH; |
| } |
| return DisplayMetrics.DENSITY_XHIGH; |
| } |
| |
| public void setNavigationMode(int mode) { |
| final int oldMode = mNavigationMode; |
| if (mode != oldMode) { |
| switch (oldMode) { |
| case ActionBar.NAVIGATION_MODE_LIST: |
| if (mSpinner != null) { |
| removeView(mListNavLayout); |
| } |
| break; |
| case ActionBar.NAVIGATION_MODE_TABS: |
| if (mTabScrollView != null) { |
| removeView(mTabScrollView); |
| } |
| } |
| |
| switch (mode) { |
| case ActionBar.NAVIGATION_MODE_LIST: |
| if (mSpinner == null) { |
| mSpinner = new Spinner(mContext, null, |
| com.android.internal.R.attr.actionDropDownStyle); |
| mListNavLayout = new LinearLayout(mContext, null, |
| com.android.internal.R.attr.actionBarTabBarStyle); |
| LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( |
| LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); |
| params.gravity = Gravity.CENTER; |
| mListNavLayout.addView(mSpinner, params); |
| } |
| if (mSpinner.getAdapter() != mSpinnerAdapter) { |
| mSpinner.setAdapter(mSpinnerAdapter); |
| } |
| mSpinner.setOnItemSelectedListener(mNavItemSelectedListener); |
| addView(mListNavLayout); |
| break; |
| case ActionBar.NAVIGATION_MODE_TABS: |
| ensureTabsExist(); |
| if (mTabScrollView != null) { |
| addView(mTabScrollView); |
| } |
| break; |
| } |
| mNavigationMode = mode; |
| requestLayout(); |
| } |
| } |
| |
| private void ensureTabsExist() { |
| if (!mIncludeTabs) return; |
| |
| if (mTabScrollView == null) { |
| mTabScrollView = new HorizontalScrollView(getContext()); |
| mTabScrollView.setHorizontalFadingEdgeEnabled(true); |
| mTabLayout = createTabContainer(); |
| mTabScrollView.addView(mTabLayout); |
| } |
| } |
| |
| public ViewGroup createTabContainer() { |
| ViewGroup result = new LinearLayout(getContext(), null, |
| com.android.internal.R.attr.actionBarTabBarStyle); |
| result.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, |
| mContentHeight)); |
| return result; |
| } |
| |
| public void setDropdownAdapter(SpinnerAdapter adapter) { |
| mSpinnerAdapter = adapter; |
| if (mSpinner != null) { |
| mSpinner.setAdapter(adapter); |
| } |
| } |
| |
| public SpinnerAdapter getDropdownAdapter() { |
| return mSpinnerAdapter; |
| } |
| |
| public void setDropdownSelectedPosition(int position) { |
| mSpinner.setSelection(position); |
| } |
| |
| public int getDropdownSelectedPosition() { |
| return mSpinner.getSelectedItemPosition(); |
| } |
| |
| public View getCustomNavigationView() { |
| return mCustomNavView; |
| } |
| |
| public int getNavigationMode() { |
| return mNavigationMode; |
| } |
| |
| public int getDisplayOptions() { |
| return mDisplayOptions; |
| } |
| |
| private TabView createTabView(ActionBar.Tab tab) { |
| final TabView tabView = new TabView(getContext(), tab); |
| tabView.setFocusable(true); |
| |
| if (mTabClickListener == null) { |
| mTabClickListener = new TabClickListener(); |
| } |
| tabView.setOnClickListener(mTabClickListener); |
| return tabView; |
| } |
| |
| public void addTab(ActionBar.Tab tab, boolean setSelected) { |
| ensureTabsExist(); |
| View tabView = createTabView(tab); |
| mTabLayout.addView(tabView); |
| if (setSelected) { |
| tabView.setSelected(true); |
| } |
| } |
| |
| public void addTab(ActionBar.Tab tab, int position, boolean setSelected) { |
| ensureTabsExist(); |
| final TabView tabView = createTabView(tab); |
| mTabLayout.addView(tabView, position); |
| if (setSelected) { |
| tabView.setSelected(true); |
| } |
| } |
| |
| public void updateTab(int position) { |
| ((TabView) mTabLayout.getChildAt(position)).update(); |
| } |
| |
| public void removeTabAt(int position) { |
| if (mTabLayout != null) { |
| mTabLayout.removeViewAt(position); |
| } |
| } |
| |
| public void removeAllTabs() { |
| if (mTabLayout != null) { |
| mTabLayout.removeAllViews(); |
| } |
| } |
| |
| @Override |
| protected LayoutParams generateDefaultLayoutParams() { |
| // Used by custom nav views if they don't supply layout params. Everything else |
| // added to an ActionBarView should have them already. |
| return new ActionBar.LayoutParams(DEFAULT_CUSTOM_GRAVITY); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| |
| addView(mHomeLayout); |
| |
| if (mCustomNavView != null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { |
| final ViewParent parent = mCustomNavView.getParent(); |
| if (parent != this) { |
| if (parent instanceof ViewGroup) { |
| ((ViewGroup) parent).removeView(mCustomNavView); |
| } |
| addView(mCustomNavView); |
| } |
| } |
| } |
| |
| private void initTitle() { |
| LayoutInflater inflater = LayoutInflater.from(getContext()); |
| mTitleLayout = (LinearLayout) inflater.inflate(R.layout.action_bar_title_item, null); |
| mTitleView = (TextView) mTitleLayout.findViewById(R.id.action_bar_title); |
| mSubtitleView = (TextView) mTitleLayout.findViewById(R.id.action_bar_subtitle); |
| |
| if (mTitleStyleRes != 0) { |
| mTitleView.setTextAppearance(mContext, mTitleStyleRes); |
| } |
| if (mTitle != null) { |
| mTitleView.setText(mTitle); |
| } |
| |
| if (mSubtitleStyleRes != 0) { |
| mSubtitleView.setTextAppearance(mContext, mSubtitleStyleRes); |
| } |
| if (mSubtitle != null) { |
| mSubtitleView.setText(mSubtitle); |
| mSubtitleView.setVisibility(VISIBLE); |
| } |
| |
| addView(mTitleLayout); |
| } |
| |
| public void setTabSelected(int position) { |
| ensureTabsExist(); |
| final int tabCount = mTabLayout.getChildCount(); |
| for (int i = 0; i < tabCount; i++) { |
| final View child = mTabLayout.getChildAt(i); |
| child.setSelected(i == position); |
| } |
| } |
| |
| public void setContextView(ActionBarContextView view) { |
| mContextView = view; |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int widthMode = MeasureSpec.getMode(widthMeasureSpec); |
| if (widthMode != MeasureSpec.EXACTLY) { |
| throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + |
| "with android:layout_width=\"match_parent\" (or fill_parent)"); |
| } |
| |
| int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| if (heightMode != MeasureSpec.AT_MOST) { |
| throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + |
| "with android:layout_height=\"wrap_content\""); |
| } |
| |
| int contentWidth = MeasureSpec.getSize(widthMeasureSpec); |
| |
| int maxHeight = mContentHeight > 0 ? |
| mContentHeight : MeasureSpec.getSize(heightMeasureSpec); |
| |
| final int verticalPadding = getPaddingTop() + getPaddingBottom(); |
| final int paddingLeft = getPaddingLeft(); |
| final int paddingRight = getPaddingRight(); |
| final int height = maxHeight - verticalPadding; |
| final int childSpecHeight = MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST); |
| |
| int availableWidth = contentWidth - paddingLeft - paddingRight; |
| int leftOfCenter = availableWidth / 2; |
| int rightOfCenter = leftOfCenter; |
| |
| if (mHomeLayout.getVisibility() != GONE) { |
| mHomeLayout.measure(MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), |
| MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); |
| final int homeWidth = mHomeLayout.getMeasuredWidth(); |
| availableWidth -= homeWidth; |
| leftOfCenter -= homeWidth; |
| } |
| |
| if (mMenuView != null && mMenuView.getParent() == this) { |
| availableWidth = measureChildView(mMenuView, availableWidth, |
| childSpecHeight, 0); |
| rightOfCenter -= mMenuView.getMeasuredWidth(); |
| } |
| |
| boolean showTitle = mTitleLayout != null && mTitleLayout.getVisibility() != GONE && |
| (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0; |
| if (showTitle) { |
| availableWidth = measureChildView(mTitleLayout, availableWidth, childSpecHeight, 0); |
| leftOfCenter -= mTitleLayout.getMeasuredWidth(); |
| } |
| |
| switch (mNavigationMode) { |
| case ActionBar.NAVIGATION_MODE_LIST: |
| if (mListNavLayout != null) { |
| final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding; |
| availableWidth -= itemPaddingSize; |
| leftOfCenter -= itemPaddingSize; |
| mListNavLayout.measure( |
| MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), |
| MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); |
| final int listNavWidth = mListNavLayout.getMeasuredWidth(); |
| availableWidth -= listNavWidth; |
| leftOfCenter -= listNavWidth; |
| } |
| break; |
| case ActionBar.NAVIGATION_MODE_TABS: |
| if (mTabScrollView != null) { |
| final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding; |
| availableWidth -= itemPaddingSize; |
| leftOfCenter -= itemPaddingSize; |
| mTabScrollView.measure( |
| MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), |
| MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); |
| final int tabWidth = mTabScrollView.getMeasuredWidth(); |
| availableWidth -= tabWidth; |
| leftOfCenter -= tabWidth; |
| } |
| break; |
| } |
| |
| if (mIndeterminateProgressView != null && |
| mIndeterminateProgressView.getVisibility() != GONE) { |
| availableWidth = measureChildView(mIndeterminateProgressView, availableWidth, |
| childSpecHeight, 0); |
| rightOfCenter -= mIndeterminateProgressView.getMeasuredWidth(); |
| } |
| |
| if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) { |
| final LayoutParams lp = generateLayoutParams(mCustomNavView.getLayoutParams()); |
| final ActionBar.LayoutParams ablp = lp instanceof ActionBar.LayoutParams ? |
| (ActionBar.LayoutParams) lp : null; |
| |
| int horizontalMargin = 0; |
| int verticalMargin = 0; |
| if (ablp != null) { |
| horizontalMargin = ablp.leftMargin + ablp.rightMargin; |
| verticalMargin = ablp.topMargin + ablp.bottomMargin; |
| } |
| |
| // If the action bar is wrapping to its content height, don't allow a custom |
| // view to MATCH_PARENT. |
| int customNavHeightMode; |
| if (mContentHeight <= 0) { |
| customNavHeightMode = MeasureSpec.AT_MOST; |
| } else { |
| customNavHeightMode = lp.height != LayoutParams.WRAP_CONTENT ? |
| MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; |
| } |
| final int customNavHeight = Math.max(0, |
| (lp.height >= 0 ? Math.min(lp.height, height) : height) - verticalMargin); |
| |
| final int customNavWidthMode = lp.width != LayoutParams.WRAP_CONTENT ? |
| MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; |
| int customNavWidth = Math.max(0, |
| (lp.width >= 0 ? Math.min(lp.width, availableWidth) : availableWidth) |
| - horizontalMargin); |
| final int hgrav = (ablp != null ? ablp.gravity : DEFAULT_CUSTOM_GRAVITY) & |
| Gravity.HORIZONTAL_GRAVITY_MASK; |
| |
| // Centering a custom view is treated specially; we try to center within the whole |
| // action bar rather than in the available space. |
| if (hgrav == Gravity.CENTER_HORIZONTAL && lp.width == LayoutParams.MATCH_PARENT) { |
| customNavWidth = Math.min(leftOfCenter, rightOfCenter) * 2; |
| } |
| |
| mCustomNavView.measure( |
| MeasureSpec.makeMeasureSpec(customNavWidth, customNavWidthMode), |
| MeasureSpec.makeMeasureSpec(customNavHeight, customNavHeightMode)); |
| } |
| |
| if (mContentHeight <= 0) { |
| int measuredHeight = 0; |
| final int count = getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View v = getChildAt(i); |
| int paddedViewHeight = v.getMeasuredHeight() + verticalPadding; |
| if (paddedViewHeight > measuredHeight) { |
| measuredHeight = paddedViewHeight; |
| } |
| } |
| setMeasuredDimension(contentWidth, measuredHeight); |
| } else { |
| setMeasuredDimension(contentWidth, maxHeight); |
| } |
| |
| if (mContextView != null) { |
| mContextView.setHeight(getMeasuredHeight()); |
| } |
| |
| if (mProgressView != null && mProgressView.getVisibility() != GONE) { |
| mProgressView.measure(MeasureSpec.makeMeasureSpec( |
| contentWidth - mProgressBarPadding * 2, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST)); |
| } |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| int x = getPaddingLeft(); |
| final int y = getPaddingTop(); |
| final int contentHeight = b - t - getPaddingTop() - getPaddingBottom(); |
| |
| if (mHomeLayout.getVisibility() != GONE) { |
| x += positionChild(mHomeLayout, x, y, contentHeight); |
| } |
| |
| final boolean showTitle = mTitleLayout != null && mTitleLayout.getVisibility() != GONE && |
| (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0; |
| if (showTitle) { |
| x += positionChild(mTitleLayout, x, y, contentHeight); |
| } |
| |
| switch (mNavigationMode) { |
| case ActionBar.NAVIGATION_MODE_STANDARD: |
| break; |
| case ActionBar.NAVIGATION_MODE_LIST: |
| if (mListNavLayout != null) { |
| if (showTitle) x += mItemPadding; |
| x += positionChild(mListNavLayout, x, y, contentHeight) + mItemPadding; |
| } |
| break; |
| case ActionBar.NAVIGATION_MODE_TABS: |
| if (mTabScrollView != null) { |
| if (showTitle) x += mItemPadding; |
| x += positionChild(mTabScrollView, x, y, contentHeight) + mItemPadding; |
| } |
| break; |
| } |
| |
| int menuLeft = r - l - getPaddingRight(); |
| if (mMenuView != null && mMenuView.getParent() == this) { |
| positionChildInverse(mMenuView, menuLeft, y, contentHeight); |
| menuLeft -= mMenuView.getMeasuredWidth(); |
| } |
| |
| if (mIndeterminateProgressView != null && |
| mIndeterminateProgressView.getVisibility() != GONE) { |
| positionChildInverse(mIndeterminateProgressView, menuLeft, y, contentHeight); |
| menuLeft -= mIndeterminateProgressView.getMeasuredWidth(); |
| } |
| |
| if (mCustomNavView != null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { |
| LayoutParams lp = mCustomNavView.getLayoutParams(); |
| final ActionBar.LayoutParams ablp = lp instanceof ActionBar.LayoutParams ? |
| (ActionBar.LayoutParams) lp : null; |
| |
| final int gravity = ablp != null ? ablp.gravity : DEFAULT_CUSTOM_GRAVITY; |
| final int navWidth = mCustomNavView.getMeasuredWidth(); |
| |
| int topMargin = 0; |
| int bottomMargin = 0; |
| if (ablp != null) { |
| x += ablp.leftMargin; |
| menuLeft -= ablp.rightMargin; |
| topMargin = ablp.topMargin; |
| bottomMargin = ablp.bottomMargin; |
| } |
| |
| int hgravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK; |
| // See if we actually have room to truly center; if not push against left or right. |
| if (hgravity == Gravity.CENTER_HORIZONTAL) { |
| final int centeredLeft = ((mRight - mLeft) - navWidth) / 2; |
| if (centeredLeft < x) { |
| hgravity = Gravity.LEFT; |
| } else if (centeredLeft + navWidth > menuLeft) { |
| hgravity = Gravity.RIGHT; |
| } |
| } |
| |
| int xpos = 0; |
| switch (hgravity) { |
| case Gravity.CENTER_HORIZONTAL: |
| xpos = ((mRight - mLeft) - navWidth) / 2; |
| break; |
| case Gravity.LEFT: |
| xpos = x; |
| break; |
| case Gravity.RIGHT: |
| xpos = menuLeft - navWidth; |
| break; |
| } |
| |
| int ypos = 0; |
| switch (gravity & Gravity.VERTICAL_GRAVITY_MASK) { |
| case Gravity.CENTER_VERTICAL: |
| final int paddedTop = mTop + getPaddingTop(); |
| final int paddedBottom = mBottom - getPaddingBottom(); |
| ypos = ((paddedBottom - paddedTop) - mCustomNavView.getMeasuredHeight()) / 2; |
| break; |
| case Gravity.TOP: |
| ypos = getPaddingTop() + topMargin; |
| break; |
| case Gravity.BOTTOM: |
| ypos = getHeight() - getPaddingBottom() - mCustomNavView.getMeasuredHeight() |
| - bottomMargin; |
| break; |
| } |
| x += positionChild(mCustomNavView, xpos, ypos, contentHeight); |
| } |
| |
| if (mProgressView != null) { |
| mProgressView.bringToFront(); |
| final int halfProgressHeight = mProgressView.getMeasuredHeight() / 2; |
| mProgressView.layout(mProgressBarPadding, -halfProgressHeight, |
| mProgressBarPadding + mProgressView.getMeasuredWidth(), halfProgressHeight); |
| } |
| } |
| |
| private static class TabView extends LinearLayout { |
| private ActionBar.Tab mTab; |
| private TextView mTextView; |
| private ImageView mIconView; |
| private View mCustomView; |
| |
| public TabView(Context context, ActionBar.Tab tab) { |
| super(context, null, com.android.internal.R.attr.actionBarTabStyle); |
| mTab = tab; |
| |
| update(); |
| |
| setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, |
| LayoutParams.MATCH_PARENT, 1)); |
| } |
| |
| public void update() { |
| final ActionBar.Tab tab = mTab; |
| final View custom = tab.getCustomView(); |
| if (custom != null) { |
| addView(custom); |
| mCustomView = custom; |
| if (mTextView != null) mTextView.setVisibility(GONE); |
| if (mIconView != null) { |
| mIconView.setVisibility(GONE); |
| mIconView.setImageDrawable(null); |
| } |
| } else { |
| if (mCustomView != null) { |
| removeView(mCustomView); |
| mCustomView = null; |
| } |
| |
| final Drawable icon = tab.getIcon(); |
| final CharSequence text = tab.getText(); |
| |
| if (icon != null) { |
| if (mIconView == null) { |
| ImageView iconView = new ImageView(getContext()); |
| LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, |
| LayoutParams.WRAP_CONTENT); |
| lp.gravity = Gravity.CENTER_VERTICAL; |
| iconView.setLayoutParams(lp); |
| addView(iconView, 0); |
| mIconView = iconView; |
| } |
| mIconView.setImageDrawable(icon); |
| mIconView.setVisibility(VISIBLE); |
| } else if (mIconView != null) { |
| mIconView.setVisibility(GONE); |
| mIconView.setImageDrawable(null); |
| } |
| |
| if (text != null) { |
| if (mTextView == null) { |
| TextView textView = new TextView(getContext(), null, |
| com.android.internal.R.attr.actionBarTabTextStyle); |
| textView.setSingleLine(); |
| textView.setEllipsize(TruncateAt.END); |
| LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, |
| LayoutParams.WRAP_CONTENT); |
| lp.gravity = Gravity.CENTER_VERTICAL; |
| textView.setLayoutParams(lp); |
| addView(textView); |
| mTextView = textView; |
| } |
| mTextView.setText(text); |
| mTextView.setVisibility(VISIBLE); |
| } else { |
| mTextView.setVisibility(GONE); |
| } |
| } |
| } |
| |
| public ActionBar.Tab getTab() { |
| return mTab; |
| } |
| } |
| |
| private class TabClickListener implements OnClickListener { |
| public void onClick(View view) { |
| TabView tabView = (TabView) view; |
| tabView.getTab().select(); |
| final int tabCount = mTabLayout.getChildCount(); |
| for (int i = 0; i < tabCount; i++) { |
| final View child = mTabLayout.getChildAt(i); |
| child.setSelected(child == view); |
| } |
| } |
| } |
| |
| private static class HomeView extends FrameLayout { |
| private View mUpView; |
| private View mIconView; |
| |
| public HomeView(Context context) { |
| this(context, null); |
| } |
| |
| public HomeView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| mUpView = findViewById(com.android.internal.R.id.up); |
| mIconView = (ImageView) findViewById(com.android.internal.R.id.home); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| measureChildWithMargins(mUpView, widthMeasureSpec, 0, heightMeasureSpec, 0); |
| final LayoutParams upLp = (LayoutParams) mUpView.getLayoutParams(); |
| int width = upLp.leftMargin + mUpView.getMeasuredWidth() + upLp.rightMargin; |
| int height = upLp.topMargin + mUpView.getMeasuredHeight() + upLp.bottomMargin; |
| measureChildWithMargins(mIconView, widthMeasureSpec, width, heightMeasureSpec, 0); |
| final LayoutParams iconLp = (LayoutParams) mIconView.getLayoutParams(); |
| width += iconLp.leftMargin + mIconView.getMeasuredWidth() + iconLp.rightMargin; |
| height = Math.max(height, |
| iconLp.topMargin + mIconView.getMeasuredHeight() + iconLp.bottomMargin); |
| setMeasuredDimension(width, height); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| final int vCenter = (b - t) / 2; |
| int width = r - l; |
| if (mUpView.getVisibility() != GONE) { |
| final LayoutParams upLp = (LayoutParams) mUpView.getLayoutParams(); |
| final int upHeight = mUpView.getMeasuredHeight(); |
| final int upWidth = mUpView.getMeasuredWidth(); |
| final int upTop = t + vCenter - upHeight / 2; |
| mUpView.layout(l, upTop, l + upWidth, upTop + upHeight); |
| final int upOffset = upLp.leftMargin + upWidth + upLp.rightMargin; |
| width -= upOffset; |
| l += upOffset; |
| } |
| final LayoutParams iconLp = (LayoutParams) mIconView.getLayoutParams(); |
| final int iconHeight = mIconView.getMeasuredHeight(); |
| final int iconWidth = mIconView.getMeasuredWidth(); |
| final int hCenter = (r - l) / 2; |
| final int iconLeft = l + iconLp.leftMargin + hCenter - iconWidth / 2; |
| final int iconTop = t + iconLp.topMargin + vCenter - iconHeight / 2; |
| mIconView.layout(iconLeft, iconTop, iconLeft + iconWidth, iconTop + iconHeight); |
| } |
| } |
| } |
