| /* |
| * Copyright (C) 2021 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.window; |
| |
| import static android.content.pm.ActivityInfo.CONFIG_SCREEN_LAYOUT; |
| import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE; |
| import static android.content.pm.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.res.Configuration; |
| import android.os.Parcelable; |
| import android.util.SparseIntArray; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.DataClass; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Contains size-configuration buckets used to prevent excessive configuration changes during |
| * resize. |
| * |
| * These configurations are collected from application's resources based on size-sensitive |
| * qualifiers. For example, layout-w800dp will be added to mHorizontalSizeConfigurations as 800 |
| * and drawable-sw400dp will be added to both as 400. |
| * |
| * @hide |
| */ |
| @DataClass(genAidl = true) |
| public final class SizeConfigurationBuckets implements Parcelable { |
| |
| /** Horizontal (screenWidthDp) buckets */ |
| @Nullable |
| private final int[] mHorizontal; |
| |
| /** Vertical (screenHeightDp) buckets */ |
| @Nullable |
| private final int[] mVertical; |
| |
| /** Smallest (smallestScreenWidthDp) buckets */ |
| @Nullable |
| private final int[] mSmallest; |
| |
| /** Screen Layout Size (screenLayout & SCREENLAYOUT_SIZE_MASK) buckets */ |
| @Nullable |
| private final int[] mScreenLayoutSize; |
| |
| /** |
| * Screen Layout Long (screenLayout & SCREENLAYOUT_LONG_MASK) boolean. Only need to know if a |
| * value is set because only two possible buckets, SCREENLAYOUT_LONG_NO and |
| * SCREENLAYOUT_LONG_YES, so if either is set, then any change is a bucket change. |
| */ |
| private final boolean mScreenLayoutLongSet; |
| |
| public SizeConfigurationBuckets(Configuration[] sizeConfigurations) { |
| SparseIntArray horizontal = new SparseIntArray(); |
| SparseIntArray vertical = new SparseIntArray(); |
| SparseIntArray smallest = new SparseIntArray(); |
| SparseIntArray screenLayoutSize = new SparseIntArray(); |
| int curScreenLayoutSize; |
| boolean screenLayoutLongSet = false; |
| for (int i = sizeConfigurations.length - 1; i >= 0; i--) { |
| Configuration config = sizeConfigurations[i]; |
| if (config.screenHeightDp != Configuration.SCREEN_HEIGHT_DP_UNDEFINED) { |
| vertical.put(config.screenHeightDp, 0); |
| } |
| if (config.screenWidthDp != Configuration.SCREEN_WIDTH_DP_UNDEFINED) { |
| horizontal.put(config.screenWidthDp, 0); |
| } |
| if (config.smallestScreenWidthDp != Configuration.SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { |
| smallest.put(config.smallestScreenWidthDp, 0); |
| } |
| if ((curScreenLayoutSize = config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) |
| != Configuration.SCREENLAYOUT_SIZE_UNDEFINED) { |
| screenLayoutSize.put(curScreenLayoutSize, 0); |
| } |
| if (!screenLayoutLongSet && (config.screenLayout & Configuration.SCREENLAYOUT_LONG_MASK) |
| != Configuration.SCREENLAYOUT_LONG_UNDEFINED) { |
| screenLayoutLongSet = true; |
| } |
| } |
| mHorizontal = horizontal.copyKeys(); |
| mVertical = vertical.copyKeys(); |
| mSmallest = smallest.copyKeys(); |
| mScreenLayoutSize = screenLayoutSize.copyKeys(); |
| mScreenLayoutLongSet = screenLayoutLongSet; |
| } |
| |
| /** |
| * Get the changes between two configurations but don't count changes in sizes if they don't |
| * cross boundaries that are important to the app. |
| */ |
| public static int filterDiff(int diff, @NonNull Configuration oldConfig, |
| @NonNull Configuration newConfig, @Nullable SizeConfigurationBuckets buckets) { |
| if (buckets == null) { |
| return diff; |
| } |
| |
| final boolean nonSizeLayoutFieldsUnchanged = |
| areNonSizeLayoutFieldsUnchanged(oldConfig.screenLayout, newConfig.screenLayout); |
| if ((diff & CONFIG_SCREEN_SIZE) != 0) { |
| final boolean crosses = buckets.crossesHorizontalSizeThreshold(oldConfig.screenWidthDp, |
| newConfig.screenWidthDp) |
| || buckets.crossesVerticalSizeThreshold(oldConfig.screenHeightDp, |
| newConfig.screenHeightDp); |
| if (!crosses) { |
| diff &= ~CONFIG_SCREEN_SIZE; |
| } |
| } |
| if ((diff & CONFIG_SMALLEST_SCREEN_SIZE) != 0) { |
| final int oldSmallest = oldConfig.smallestScreenWidthDp; |
| final int newSmallest = newConfig.smallestScreenWidthDp; |
| if (!buckets.crossesSmallestSizeThreshold(oldSmallest, newSmallest)) { |
| diff &= ~CONFIG_SMALLEST_SCREEN_SIZE; |
| } |
| } |
| if ((diff & CONFIG_SCREEN_LAYOUT) != 0 && nonSizeLayoutFieldsUnchanged) { |
| if (!buckets.crossesScreenLayoutSizeThreshold(oldConfig, newConfig) |
| && !buckets.crossesScreenLayoutLongThreshold(oldConfig.screenLayout, |
| newConfig.screenLayout)) { |
| diff &= ~CONFIG_SCREEN_LAYOUT; |
| } |
| } |
| return diff; |
| } |
| |
| private boolean crossesHorizontalSizeThreshold(int firstDp, int secondDp) { |
| return crossesSizeThreshold(mHorizontal, firstDp, secondDp); |
| } |
| |
| private boolean crossesVerticalSizeThreshold(int firstDp, int secondDp) { |
| return crossesSizeThreshold(mVertical, firstDp, secondDp); |
| } |
| |
| private boolean crossesSmallestSizeThreshold(int firstDp, int secondDp) { |
| return crossesSizeThreshold(mSmallest, firstDp, secondDp); |
| } |
| |
| /** |
| * Returns whether a screen layout size threshold has been crossed. |
| */ |
| @VisibleForTesting |
| public boolean crossesScreenLayoutSizeThreshold(@NonNull Configuration firstConfig, |
| @NonNull Configuration secondConfig) { |
| // If both the old and new screen layout are equal (both can be undefined), then no |
| // threshold is crossed. |
| if ((firstConfig.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) |
| == (secondConfig.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK)) { |
| return false; |
| } |
| // Any time the new layout size is smaller than the old layout size, the activity has |
| // crossed a size threshold because layout size represents the smallest possible size the |
| // activity can occupy. |
| if (!secondConfig.isLayoutSizeAtLeast(firstConfig.screenLayout |
| & Configuration.SCREENLAYOUT_SIZE_MASK)) { |
| return true; |
| } |
| // If the new layout size is at least as large as the old layout size, then check if the new |
| // layout size has crossed a threshold. |
| if (mScreenLayoutSize != null) { |
| for (int screenLayoutSize : mScreenLayoutSize) { |
| if (firstConfig.isLayoutSizeAtLeast(screenLayoutSize) |
| != secondConfig.isLayoutSizeAtLeast(screenLayoutSize)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private boolean crossesScreenLayoutLongThreshold(int firstScreenLayout, |
| int secondScreenLayout) { |
| final int firstScreenLayoutLongValue = firstScreenLayout |
| & Configuration.SCREENLAYOUT_LONG_MASK; |
| final int secondScreenLayoutLongValue = secondScreenLayout |
| & Configuration.SCREENLAYOUT_LONG_MASK; |
| return mScreenLayoutLongSet && firstScreenLayoutLongValue != secondScreenLayoutLongValue; |
| } |
| |
| /** |
| * Returns whether non-size related screen layout attributes have changed. If true, then |
| * {@link ActivityInfo#CONFIG_SCREEN_LAYOUT} should not be filtered out in |
| * {@link SizeConfigurationBuckets#filterDiff()} because the non-size related attributes |
| * do not have a bucket range like the size-related attributes of screen layout. |
| */ |
| @VisibleForTesting |
| public static boolean areNonSizeLayoutFieldsUnchanged(int oldScreenLayout, |
| int newScreenLayout) { |
| final int nonSizeRelatedFields = Configuration.SCREENLAYOUT_LAYOUTDIR_MASK |
| | Configuration.SCREENLAYOUT_ROUND_MASK | Configuration.SCREENLAYOUT_COMPAT_NEEDED; |
| return (oldScreenLayout & nonSizeRelatedFields) == (newScreenLayout & nonSizeRelatedFields); |
| } |
| |
| /** |
| * The purpose of this method is to decide whether the activity needs to be relaunched upon |
| * changing its size. In most cases the activities don't need to be relaunched, if the resize |
| * is small, all the activity content has to do is relayout itself within new bounds. There are |
| * cases however, where the activity's content would be completely changed in the new size and |
| * the full relaunch is required. |
| * |
| * The activity will report to us vertical and horizontal thresholds after which a relaunch is |
| * required. These thresholds are collected from the application resource qualifiers. For |
| * example, if application has layout-w600dp resource directory, then it needs a relaunch when |
| * we resize from width of 650dp to 550dp, as it crosses the 600dp threshold. However, if |
| * it resizes width from 620dp to 700dp, it won't be relaunched as it stays on the same side |
| * of the threshold. |
| */ |
| @VisibleForTesting |
| public static boolean crossesSizeThreshold(int[] thresholds, int firstDp, |
| int secondDp) { |
| if (thresholds == null) { |
| return false; |
| } |
| for (int i = thresholds.length - 1; i >= 0; i--) { |
| final int threshold = thresholds[i]; |
| if ((firstDp < threshold && secondDp >= threshold) |
| || (firstDp >= threshold && secondDp < threshold)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return Arrays.toString(mHorizontal) + " " + Arrays.toString(mVertical) + " " |
| + Arrays.toString(mSmallest) + " " + Arrays.toString(mScreenLayoutSize) + " " |
| + mScreenLayoutLongSet; |
| } |
| |
| |
| |
| // Code below generated by codegen v1.0.23. |
| // |
| // DO NOT MODIFY! |
| // CHECKSTYLE:OFF Generated code |
| // |
| // To regenerate run: |
| // $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/android/window/SizeConfigurationBuckets.java |
| // |
| // To exclude the generated code from IntelliJ auto-formatting enable (one-time): |
| // Settings > Editor > Code Style > Formatter Control |
| //@formatter:off |
| |
| |
| /** |
| * Creates a new SizeConfigurationBuckets. |
| * |
| * @param horizontal |
| * Horizontal (screenWidthDp) buckets |
| * @param vertical |
| * Vertical (screenHeightDp) buckets |
| * @param smallest |
| * Smallest (smallestScreenWidthDp) buckets |
| * @param screenLayoutSize |
| * Screen Layout Size (screenLayout & SCREENLAYOUT_SIZE_MASK) buckets |
| * @param screenLayoutLongSet |
| * Screen Layout Long (screenLayout & SCREENLAYOUT_LONG_MASK) boolean. Only need to know if a |
| * value is set because only two possible buckets, SCREENLAYOUT_LONG_NO and |
| * SCREENLAYOUT_LONG_YES, so if either is set, then any change is a bucket change. |
| */ |
| @DataClass.Generated.Member |
| public SizeConfigurationBuckets( |
| @Nullable int[] horizontal, |
| @Nullable int[] vertical, |
| @Nullable int[] smallest, |
| @Nullable int[] screenLayoutSize, |
| boolean screenLayoutLongSet) { |
| this.mHorizontal = horizontal; |
| this.mVertical = vertical; |
| this.mSmallest = smallest; |
| this.mScreenLayoutSize = screenLayoutSize; |
| this.mScreenLayoutLongSet = screenLayoutLongSet; |
| |
| // onConstructed(); // You can define this method to get a callback |
| } |
| |
| /** |
| * Horizontal (screenWidthDp) buckets |
| */ |
| @DataClass.Generated.Member |
| public @Nullable int[] getHorizontal() { |
| return mHorizontal; |
| } |
| |
| /** |
| * Vertical (screenHeightDp) buckets |
| */ |
| @DataClass.Generated.Member |
| public @Nullable int[] getVertical() { |
| return mVertical; |
| } |
| |
| /** |
| * Smallest (smallestScreenWidthDp) buckets |
| */ |
| @DataClass.Generated.Member |
| public @Nullable int[] getSmallest() { |
| return mSmallest; |
| } |
| |
| /** |
| * Screen Layout Size (screenLayout & SCREENLAYOUT_SIZE_MASK) buckets |
| */ |
| @DataClass.Generated.Member |
| public @Nullable int[] getScreenLayoutSize() { |
| return mScreenLayoutSize; |
| } |
| |
| /** |
| * Screen Layout Long (screenLayout & SCREENLAYOUT_LONG_MASK) boolean. Only need to know if a |
| * value is set because only two possible buckets, SCREENLAYOUT_LONG_NO and |
| * SCREENLAYOUT_LONG_YES, so if either is set, then any change is a bucket change. |
| */ |
| @DataClass.Generated.Member |
| public boolean isScreenLayoutLongSet() { |
| return mScreenLayoutLongSet; |
| } |
| |
| @Override |
| @DataClass.Generated.Member |
| public void writeToParcel(@NonNull android.os.Parcel dest, int flags) { |
| // You can override field parcelling by defining methods like: |
| // void parcelFieldName(Parcel dest, int flags) { ... } |
| |
| byte flg = 0; |
| if (mScreenLayoutLongSet) flg |= 0x10; |
| if (mHorizontal != null) flg |= 0x1; |
| if (mVertical != null) flg |= 0x2; |
| if (mSmallest != null) flg |= 0x4; |
| if (mScreenLayoutSize != null) flg |= 0x8; |
| dest.writeByte(flg); |
| if (mHorizontal != null) dest.writeIntArray(mHorizontal); |
| if (mVertical != null) dest.writeIntArray(mVertical); |
| if (mSmallest != null) dest.writeIntArray(mSmallest); |
| if (mScreenLayoutSize != null) dest.writeIntArray(mScreenLayoutSize); |
| } |
| |
| @Override |
| @DataClass.Generated.Member |
| public int describeContents() { return 0; } |
| |
| /** @hide */ |
| @SuppressWarnings({"unchecked", "RedundantCast"}) |
| @DataClass.Generated.Member |
| /* package-private */ SizeConfigurationBuckets(@NonNull android.os.Parcel in) { |
| // You can override field unparcelling by defining methods like: |
| // static FieldType unparcelFieldName(Parcel in) { ... } |
| |
| byte flg = in.readByte(); |
| boolean screenLayoutLongSet = (flg & 0x10) != 0; |
| int[] horizontal = (flg & 0x1) == 0 ? null : in.createIntArray(); |
| int[] vertical = (flg & 0x2) == 0 ? null : in.createIntArray(); |
| int[] smallest = (flg & 0x4) == 0 ? null : in.createIntArray(); |
| int[] screenLayoutSize = (flg & 0x8) == 0 ? null : in.createIntArray(); |
| |
| this.mHorizontal = horizontal; |
| this.mVertical = vertical; |
| this.mSmallest = smallest; |
| this.mScreenLayoutSize = screenLayoutSize; |
| this.mScreenLayoutLongSet = screenLayoutLongSet; |
| |
| // onConstructed(); // You can define this method to get a callback |
| } |
| |
| @DataClass.Generated.Member |
| public static final @NonNull Parcelable.Creator<SizeConfigurationBuckets> CREATOR |
| = new Parcelable.Creator<SizeConfigurationBuckets>() { |
| @Override |
| public SizeConfigurationBuckets[] newArray(int size) { |
| return new SizeConfigurationBuckets[size]; |
| } |
| |
| @Override |
| public SizeConfigurationBuckets createFromParcel(@NonNull android.os.Parcel in) { |
| return new SizeConfigurationBuckets(in); |
| } |
| }; |
| |
| @DataClass.Generated( |
| time = 1628273704583L, |
| codegenVersion = "1.0.23", |
| sourceFile = "frameworks/base/core/java/android/window/SizeConfigurationBuckets.java", |
| inputSignatures = "private final @android.annotation.Nullable int[] mHorizontal\nprivate final @android.annotation.Nullable int[] mVertical\nprivate final @android.annotation.Nullable int[] mSmallest\nprivate final @android.annotation.Nullable int[] mScreenLayoutSize\nprivate final boolean mScreenLayoutLongSet\npublic static int filterDiff(int,android.content.res.Configuration,android.content.res.Configuration,android.window.SizeConfigurationBuckets)\nprivate boolean crossesHorizontalSizeThreshold(int,int)\nprivate boolean crossesVerticalSizeThreshold(int,int)\nprivate boolean crossesSmallestSizeThreshold(int,int)\npublic @com.android.internal.annotations.VisibleForTesting boolean crossesScreenLayoutSizeThreshold(android.content.res.Configuration,android.content.res.Configuration)\nprivate boolean crossesScreenLayoutLongThreshold(int,int)\npublic static @com.android.internal.annotations.VisibleForTesting boolean areNonSizeLayoutFieldsUnchanged(int,int)\npublic static @com.android.internal.annotations.VisibleForTesting boolean crossesSizeThreshold(int[],int,int)\npublic @java.lang.Override java.lang.String toString()\nclass SizeConfigurationBuckets extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genAidl=true)") |
| @Deprecated |
| private void __metadata() {} |
| |
| |
| //@formatter:on |
| // End of generated code |
| |
| } |
