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-rw-r--r--AconfigFlags.bp7
-rw-r--r--core/java/android/app/ResourcesManager.java137
-rw-r--r--core/java/android/content/res/AssetManager.java10
-rw-r--r--core/java/android/content/res/Resources.java8
-rw-r--r--core/java/android/content/res/ResourcesImpl.java10
-rw-r--r--core/java/android/webkit/WebViewDelegate.java8
-rw-r--r--core/java/android/webkit/WebViewFactory.java11
-rw-r--r--core/tests/coretests/Android.bp1
-rw-r--r--core/tests/coretests/src/android/content/res/ResourcesManagerTest.java132
9 files changed, 319 insertions, 5 deletions
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index eed248bcd2b9..7317ecd82bd3 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -492,6 +492,13 @@ java_aconfig_library {
defaults: ["framework-minus-apex-aconfig-java-defaults"],
}
+java_aconfig_library {
+ name: "android.content.res.flags-aconfig-java-host",
+ aconfig_declarations: "android.content.res.flags-aconfig",
+ host_supported: true,
+ defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}
+
// Media BetterTogether
aconfig_declarations {
name: "com.android.media.flags.bettertogether-aconfig",
diff --git a/core/java/android/app/ResourcesManager.java b/core/java/android/app/ResourcesManager.java
index 625526047212..8b84f062b7b5 100644
--- a/core/java/android/app/ResourcesManager.java
+++ b/core/java/android/app/ResourcesManager.java
@@ -124,6 +124,32 @@ public class ResourcesManager {
*/
private LocaleConfig mLocaleConfig = new LocaleConfig(LocaleList.getEmptyLocaleList());
+ private final ArrayMap<String, SharedLibraryAssets> mSharedLibAssetsMap =
+ new ArrayMap<>();
+
+ /**
+ * The internal function to register the resources paths of a package (e.g. a shared library).
+ * This will collect the package resources' paths from its ApplicationInfo and add them to all
+ * existing and future contexts while the application is running.
+ */
+ public void registerResourcePaths(@NonNull String uniqueId, @NonNull ApplicationInfo appInfo) {
+ SharedLibraryAssets sharedLibAssets = new SharedLibraryAssets(appInfo.sourceDir,
+ appInfo.splitSourceDirs, appInfo.sharedLibraryFiles,
+ appInfo.resourceDirs, appInfo.overlayPaths);
+
+ synchronized (mLock) {
+ if (mSharedLibAssetsMap.containsKey(uniqueId)) {
+ Slog.v(TAG, "Package resources' paths for uniqueId: " + uniqueId
+ + " has already been registered, this is a no-op.");
+ return;
+ }
+ mSharedLibAssetsMap.put(uniqueId, sharedLibAssets);
+ appendLibAssetsLocked(sharedLibAssets.getAllAssetPaths());
+ Slog.v(TAG, "The following resources' paths have been added: "
+ + Arrays.toString(sharedLibAssets.getAllAssetPaths()));
+ }
+ }
+
private static class ApkKey {
public final String path;
public final boolean sharedLib;
@@ -278,6 +304,21 @@ public class ResourcesManager {
public ResourcesManager() {
}
+ /**
+ * Inject a customized ResourcesManager instance for testing, return the old ResourcesManager
+ * instance.
+ */
+ @UnsupportedAppUsage
+ @VisibleForTesting
+ public static ResourcesManager setInstance(ResourcesManager resourcesManager) {
+ synchronized (ResourcesManager.class) {
+ ResourcesManager oldResourceManager = sResourcesManager;
+ sResourcesManager = resourcesManager;
+ return oldResourceManager;
+ }
+
+ }
+
@UnsupportedAppUsage
public static ResourcesManager getInstance() {
synchronized (ResourcesManager.class) {
@@ -1480,6 +1521,56 @@ public class ResourcesManager {
}
}
+ private void appendLibAssetsLocked(String[] libAssets) {
+ synchronized (mLock) {
+ // Record which ResourcesImpl need updating
+ // (and what ResourcesKey they should update to).
+ final ArrayMap<ResourcesImpl, ResourcesKey> updatedResourceKeys = new ArrayMap<>();
+
+ final int implCount = mResourceImpls.size();
+ for (int i = 0; i < implCount; i++) {
+ final ResourcesKey key = mResourceImpls.keyAt(i);
+ final WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.valueAt(i);
+ final ResourcesImpl impl = weakImplRef != null ? weakImplRef.get() : null;
+ if (impl == null) {
+ Slog.w(TAG, "Found a ResourcesImpl which is null, skip it and continue to "
+ + "append shared library assets for next ResourcesImpl.");
+ continue;
+ }
+
+ var newDirs = new ArrayList<String>();
+ var dirsSet = new ArraySet<String>();
+ if (key.mLibDirs != null) {
+ final int dirsLength = key.mLibDirs.length;
+ for (int k = 0; k < dirsLength; k++) {
+ newDirs.add(key.mLibDirs[k]);
+ dirsSet.add(key.mLibDirs[k]);
+ }
+ }
+ final int assetsLength = libAssets.length;
+ for (int j = 0; j < assetsLength; j++) {
+ if (dirsSet.add(libAssets[j])) {
+ newDirs.add(libAssets[j]);
+ }
+ }
+ String[] newLibAssets = newDirs.toArray(new String[0]);
+ if (!Arrays.equals(newLibAssets, key.mLibDirs)) {
+ updatedResourceKeys.put(impl, new ResourcesKey(
+ key.mResDir,
+ key.mSplitResDirs,
+ key.mOverlayPaths,
+ newLibAssets,
+ key.mDisplayId,
+ key.mOverrideConfiguration,
+ key.mCompatInfo,
+ key.mLoaders));
+ }
+ }
+
+ redirectResourcesToNewImplLocked(updatedResourceKeys);
+ }
+ }
+
private void applyNewResourceDirsLocked(@Nullable final String[] oldSourceDirs,
@NonNull final ApplicationInfo appInfo) {
try {
@@ -1689,4 +1780,50 @@ public class ResourcesManager {
}
}
}
+
+ public static class SharedLibraryAssets{
+ private final String[] mAssetPaths;
+
+ SharedLibraryAssets(String sourceDir, String[] splitSourceDirs, String[] sharedLibraryFiles,
+ String[] resourceDirs, String[] overlayPaths) {
+ mAssetPaths = collectAssetPaths(sourceDir, splitSourceDirs, sharedLibraryFiles,
+ resourceDirs, overlayPaths);
+ }
+
+ private @NonNull String[] collectAssetPaths(String sourceDir, String[] splitSourceDirs,
+ String[] sharedLibraryFiles, String[] resourceDirs, String[] overlayPaths) {
+ final String[][] inputLists = {
+ splitSourceDirs, sharedLibraryFiles, resourceDirs, overlayPaths
+ };
+
+ final ArraySet<String> assetPathSet = new ArraySet<>();
+ final List<String> assetPathList = new ArrayList<>();
+ if (sourceDir != null) {
+ assetPathSet.add(sourceDir);
+ assetPathList.add(sourceDir);
+ }
+
+ for (int i = 0; i < inputLists.length; i++) {
+ if (inputLists[i] != null) {
+ for (int j = 0; j < inputLists[i].length; j++) {
+ if (assetPathSet.add(inputLists[i][j])) {
+ assetPathList.add(inputLists[i][j]);
+ }
+ }
+ }
+ }
+ return assetPathList.toArray(new String[0]);
+ }
+
+ /**
+ * @return all the asset paths of this collected in this class.
+ */
+ public @NonNull String[] getAllAssetPaths() {
+ return mAssetPaths;
+ }
+ }
+
+ public @NonNull ArrayMap<String, SharedLibraryAssets> getSharedLibAssetsMap() {
+ return new ArrayMap<>(mSharedLibAssetsMap);
+ }
}
diff --git a/core/java/android/content/res/AssetManager.java b/core/java/android/content/res/AssetManager.java
index d259e9755a41..273e40a21bb2 100644
--- a/core/java/android/content/res/AssetManager.java
+++ b/core/java/android/content/res/AssetManager.java
@@ -471,6 +471,16 @@ public final class AssetManager implements AutoCloseable {
return addAssetPathInternal(path, true /*overlay*/, false /*appAsLib*/);
}
+ /**
+ * @hide
+ */
+ public void addSharedLibraryPaths(@NonNull String[] paths) {
+ final int length = paths.length;
+ for (int i = 0; i < length; i++) {
+ addAssetPathInternal(paths[i], false, true);
+ }
+ }
+
private int addAssetPathInternal(String path, boolean overlay, boolean appAsLib) {
Objects.requireNonNull(path, "path");
synchronized (this) {
diff --git a/core/java/android/content/res/Resources.java b/core/java/android/content/res/Resources.java
index 7fba3e890ec6..1f5f88f51d55 100644
--- a/core/java/android/content/res/Resources.java
+++ b/core/java/android/content/res/Resources.java
@@ -43,6 +43,7 @@ import android.annotation.StyleRes;
import android.annotation.StyleableRes;
import android.annotation.XmlRes;
import android.app.Application;
+import android.app.ResourcesManager;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.Context;
import android.content.pm.ActivityInfo;
@@ -2854,6 +2855,11 @@ public class Resources {
@FlaggedApi(android.content.res.Flags.FLAG_REGISTER_RESOURCE_PATHS)
public static void registerResourcePaths(@NonNull String uniqueId,
@NonNull ApplicationInfo appInfo) {
- throw new UnsupportedOperationException("The implementation has not been done yet.");
+ if (Flags.registerResourcePaths()) {
+ ResourcesManager.getInstance().registerResourcePaths(uniqueId, appInfo);
+ } else {
+ throw new UnsupportedOperationException("Flag " + Flags.FLAG_REGISTER_RESOURCE_PATHS
+ + " is disabled.");
+ }
}
}
diff --git a/core/java/android/content/res/ResourcesImpl.java b/core/java/android/content/res/ResourcesImpl.java
index 079c2c1ab7c9..8d045aaf4d81 100644
--- a/core/java/android/content/res/ResourcesImpl.java
+++ b/core/java/android/content/res/ResourcesImpl.java
@@ -29,6 +29,7 @@ import android.annotation.StyleRes;
import android.annotation.StyleableRes;
import android.app.LocaleConfig;
import android.app.ResourcesManager;
+import android.app.ResourcesManager.SharedLibraryAssets;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.pm.ActivityInfo;
import android.content.pm.ActivityInfo.Config;
@@ -47,6 +48,7 @@ import android.os.Build;
import android.os.LocaleList;
import android.os.ParcelFileDescriptor;
import android.os.Trace;
+import android.util.ArrayMap;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.Log;
@@ -197,6 +199,14 @@ public class ResourcesImpl {
public ResourcesImpl(@NonNull AssetManager assets, @Nullable DisplayMetrics metrics,
@Nullable Configuration config, @NonNull DisplayAdjustments displayAdjustments) {
mAssets = assets;
+ if (Flags.registerResourcePaths()) {
+ ArrayMap<String, SharedLibraryAssets> sharedLibMap =
+ ResourcesManager.getInstance().getSharedLibAssetsMap();
+ final int size = sharedLibMap.size();
+ for (int i = 0; i < size; i++) {
+ assets.addSharedLibraryPaths(sharedLibMap.valueAt(i).getAllAssetPaths());
+ }
+ }
mMetrics.setToDefaults();
mDisplayAdjustments = displayAdjustments;
mConfiguration.setToDefaults();
diff --git a/core/java/android/webkit/WebViewDelegate.java b/core/java/android/webkit/WebViewDelegate.java
index 3fc0a305c8e6..8501474b70a6 100644
--- a/core/java/android/webkit/WebViewDelegate.java
+++ b/core/java/android/webkit/WebViewDelegate.java
@@ -175,8 +175,16 @@ public final class WebViewDelegate {
/**
* Adds the WebView asset path to {@link android.content.res.AssetManager}.
+ * If {@link android.content.res.Flags#FLAG_REGISTER_RESOURCE_PATHS} is enabled, this function
+ * will be a no-op because the asset paths appending work will only be handled by
+ * {@link android.content.res.Resources#registerResourcePaths(String, ApplicationInfo)},
+ * otherwise it behaves the old way.
*/
public void addWebViewAssetPath(Context context) {
+ if (android.content.res.Flags.registerResourcePaths()) {
+ return;
+ }
+
final String[] newAssetPaths =
WebViewFactory.getLoadedPackageInfo().applicationInfo.getAllApkPaths();
final ApplicationInfo appInfo = context.getApplicationInfo();
diff --git a/core/java/android/webkit/WebViewFactory.java b/core/java/android/webkit/WebViewFactory.java
index c748a57dce74..01fdd1d4038c 100644
--- a/core/java/android/webkit/WebViewFactory.java
+++ b/core/java/android/webkit/WebViewFactory.java
@@ -30,6 +30,7 @@ import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.Signature;
+import android.content.res.Resources;
import android.os.Build;
import android.os.RemoteException;
import android.os.ServiceManager;
@@ -544,8 +545,14 @@ public final class WebViewFactory {
Trace.traceBegin(Trace.TRACE_TAG_WEBVIEW, "WebViewFactory.getChromiumProviderClass()");
try {
sTimestamps.mAddAssetsStart = SystemClock.uptimeMillis();
- for (String newAssetPath : webViewContext.getApplicationInfo().getAllApkPaths()) {
- initialApplication.getAssets().addAssetPathAsSharedLibrary(newAssetPath);
+ if (android.content.res.Flags.registerResourcePaths()) {
+ Resources.registerResourcePaths(webViewContext.getPackageName(),
+ webViewContext.getApplicationInfo());
+ } else {
+ for (String newAssetPath : webViewContext.getApplicationInfo()
+ .getAllApkPaths()) {
+ initialApplication.getAssets().addAssetPathAsSharedLibrary(newAssetPath);
+ }
}
sTimestamps.mAddAssetsEnd = sTimestamps.mGetClassLoaderStart =
SystemClock.uptimeMillis();
diff --git a/core/tests/coretests/Android.bp b/core/tests/coretests/Android.bp
index e72beee71e50..24031cad0a3e 100644
--- a/core/tests/coretests/Android.bp
+++ b/core/tests/coretests/Android.bp
@@ -101,6 +101,7 @@ android_test {
"flickerlib-trace_processor_shell",
"mockito-target-extended-minus-junit4",
"TestParameterInjector",
+ "android.content.res.flags-aconfig-java",
],
libs: [
diff --git a/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java b/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
index 4a9cb7180a3f..0c1e8793bfc9 100644
--- a/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
+++ b/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
@@ -18,34 +18,52 @@ package android.content.res;
import android.annotation.NonNull;
import android.app.ResourcesManager;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
import android.os.Binder;
import android.os.LocaleList;
import android.platform.test.annotations.Postsubmit;
+import android.platform.test.annotations.RequiresFlagsEnabled;
+import android.platform.test.flag.junit.CheckFlagsRule;
+import android.platform.test.flag.junit.DeviceFlagsValueProvider;
+import android.util.ArraySet;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.Display;
import android.view.DisplayAdjustments;
+import androidx.test.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.SmallTest;
import junit.framework.TestCase;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.ArrayList;
+import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
@Postsubmit
+@RunWith(AndroidJUnit4.class)
public class ResourcesManagerTest extends TestCase {
private static final int SECONDARY_DISPLAY_ID = 1;
private static final String APP_ONE_RES_DIR = "app_one.apk";
private static final String APP_ONE_RES_SPLIT_DIR = "app_one_split.apk";
private static final String APP_TWO_RES_DIR = "app_two.apk";
private static final String LIB_RES_DIR = "lib.apk";
+ private static final String TEST_LIB = "com.android.frameworks.coretests.bdr_helper_app1";
private ResourcesManager mResourcesManager;
private Map<Integer, DisplayMetrics> mDisplayMetricsMap;
+ private PackageManager mPackageManager;
- @Override
- protected void setUp() throws Exception {
+ @Before
+ public void setUp() throws Exception {
super.setUp();
mDisplayMetricsMap = new HashMap<>();
@@ -93,8 +111,14 @@ public class ResourcesManagerTest extends TestCase {
return mDisplayMetricsMap.get(displayId);
}
};
+
+ mPackageManager = InstrumentationRegistry.getContext().getPackageManager();
}
+ @Rule
+ public final CheckFlagsRule mCheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule();
+
+ @Test
@SmallTest
public void testMultipleCallsWithIdenticalParametersCacheReference() {
Resources resources = mResourcesManager.getResources(
@@ -109,6 +133,7 @@ public class ResourcesManagerTest extends TestCase {
assertSame(resources.getImpl(), newResources.getImpl());
}
+ @Test
@SmallTest
public void testMultipleCallsWithDifferentParametersReturnDifferentReferences() {
Resources resources = mResourcesManager.getResources(
@@ -125,6 +150,7 @@ public class ResourcesManagerTest extends TestCase {
assertNotSame(resources, newResources);
}
+ @Test
@SmallTest
public void testAddingASplitCreatesANewImpl() {
Resources resources1 = mResourcesManager.getResources(
@@ -142,6 +168,7 @@ public class ResourcesManagerTest extends TestCase {
assertNotSame(resources1.getImpl(), resources2.getImpl());
}
+ @Test
@SmallTest
public void testUpdateConfigurationUpdatesAllAssetManagers() {
Resources resources1 = mResourcesManager.getResources(
@@ -187,6 +214,7 @@ public class ResourcesManagerTest extends TestCase {
assertEquals(expectedConfig, resources3.getConfiguration());
}
+ @Test
@SmallTest
public void testTwoActivitiesWithIdenticalParametersShareImpl() {
Binder activity1 = new Binder();
@@ -208,6 +236,7 @@ public class ResourcesManagerTest extends TestCase {
assertSame(resources1.getImpl(), resources2.getImpl());
}
+ @Test
@SmallTest
public void testThemesGetUpdatedWithNewImpl() {
Binder activity1 = new Binder();
@@ -237,6 +266,7 @@ public class ResourcesManagerTest extends TestCase {
assertTrue(value.data != 0);
}
+ @Test
@SmallTest
public void testMultipleResourcesForOneActivityGetUpdatedWhenActivityBaseUpdates() {
Binder activity1 = new Binder();
@@ -286,6 +316,7 @@ public class ResourcesManagerTest extends TestCase {
assertEquals(expectedConfig2, resources2.getConfiguration());
}
+ @Test
@SmallTest
public void testChangingActivityDisplayDoesntOverrideDisplayRequestedByResources() {
Binder activity = new Binder();
@@ -322,4 +353,101 @@ public class ResourcesManagerTest extends TestCase {
assertEquals(mDisplayMetricsMap.get(Display.DEFAULT_DISPLAY).widthPixels,
defaultDisplayResources.getDisplayMetrics().widthPixels);
}
+
+ @Test
+ @SmallTest
+ @RequiresFlagsEnabled(Flags.FLAG_REGISTER_RESOURCE_PATHS)
+ public void testExistingResourcesAfterResourcePathsRegistration()
+ throws PackageManager.NameNotFoundException {
+ // Inject ResourcesManager instance from this test to the ResourcesManager class so that all
+ // the static method can interact with this test smoothly.
+ ResourcesManager oriResourcesManager = ResourcesManager.getInstance();
+ ResourcesManager.setInstance(mResourcesManager);
+
+ // Create a Resources before register resources' paths for a package.
+ Resources resources = mResourcesManager.getResources(
+ null, APP_ONE_RES_DIR, null, null, null, null, null, null,
+ CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null, null);
+ assertNotNull(resources);
+ ResourcesImpl oriResImpl = resources.getImpl();
+
+ ApplicationInfo appInfo = mPackageManager.getApplicationInfo(TEST_LIB, 0);
+ Resources.registerResourcePaths(TEST_LIB, appInfo);
+
+ assertNotSame(oriResImpl, resources.getImpl());
+
+ String[] resourcePaths = appInfo.getAllApkPaths();
+ resourcePaths = removeDuplicates(resourcePaths);
+ ApkAssets[] loadedAssets = resources.getAssets().getApkAssets();
+ assertTrue(allResourcePathsLoaded(resourcePaths, loadedAssets));
+
+ // Package resources' paths should be cached in ResourcesManager.
+ assertEquals(Arrays.toString(resourcePaths), Arrays.toString(ResourcesManager.getInstance()
+ .getSharedLibAssetsMap().get(TEST_LIB).getAllAssetPaths()));
+
+ // Revert the ResourcesManager instance back.
+ ResourcesManager.setInstance(oriResourcesManager);
+ }
+
+ @Test
+ @SmallTest
+ @RequiresFlagsEnabled(Flags.FLAG_REGISTER_RESOURCE_PATHS)
+ public void testNewResourcesAfterResourcePathsRegistration()
+ throws PackageManager.NameNotFoundException {
+ // Inject ResourcesManager instance from this test to the ResourcesManager class so that all
+ // the static method can interact with this test smoothly.
+ ResourcesManager oriResourcesManager = ResourcesManager.getInstance();
+ ResourcesManager.setInstance(mResourcesManager);
+
+ ApplicationInfo appInfo = mPackageManager.getApplicationInfo(TEST_LIB, 0);
+ Resources.registerResourcePaths(TEST_LIB, appInfo);
+
+ // Create a Resources after register resources' paths for a package.
+ Resources resources = mResourcesManager.getResources(
+ null, APP_ONE_RES_DIR, null, null, null, null, null, null,
+ CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null, null);
+ assertNotNull(resources);
+
+ String[] resourcePaths = appInfo.getAllApkPaths();
+ resourcePaths = removeDuplicates(resourcePaths);
+ ApkAssets[] loadedAssets = resources.getAssets().getApkAssets();
+ assertTrue(allResourcePathsLoaded(resourcePaths, loadedAssets));
+
+ // Package resources' paths should be cached in ResourcesManager.
+ assertEquals(Arrays.toString(resourcePaths), Arrays.toString(ResourcesManager.getInstance()
+ .getSharedLibAssetsMap().get(TEST_LIB).getAllAssetPaths()));
+
+ // Revert the ResourcesManager instance back.
+ ResourcesManager.setInstance(oriResourcesManager);
+ }
+
+ private static boolean allResourcePathsLoaded(String[] resourcePaths, ApkAssets[] loadedAsset) {
+ for (int i = 0; i < resourcePaths.length; i++) {
+ if (!resourcePaths[i].endsWith(".apk")) {
+ continue;
+ }
+ boolean found = false;
+ for (int j = 0; j < loadedAsset.length; j++) {
+ if (loadedAsset[j].getAssetPath().equals(resourcePaths[i])) {
+ found = true;
+ }
+ }
+ if (!found) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ private static String[] removeDuplicates(String[] paths) {
+ var pathList = new ArrayList<String>();
+ var pathSet = new ArraySet<String>();
+ final int pathsLen = paths.length;
+ for (int i = 0; i < pathsLen; i++) {
+ if (pathSet.add(paths[i])) {
+ pathList.add(paths[i]);
+ }
+ }
+ return pathList.toArray(new String[0]);
+ }
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-26 07:04:38 +0000