Merge \\"ResourcesManager: Allow managed addition of library asset paths\\"... (f4152a9c) · Commits · e / os / android_frameworks_base

core/java/android/app/ResourcesManager.java

+88 −1

Original line number	Diff line number	Diff line
		@@ -274,7 +274,7 @@ public class ResourcesManager {
		if (libDir.endsWith(".apk")) {
		// Avoid opening files we know do not have resources,
		// like code-only .jar files.
		if (assets.addAssetPath(libDir) == 0) {
		if (assets.addAssetPathAsSharedLibrary(libDir) == 0) {
		Log.w(TAG, "Asset path '" + libDir +
		"' does not exist or contains no resources.");
		}
		@@ -329,6 +329,22 @@ public class ResourcesManager {
		return null;
		}

		/**
		* Finds a cached ResourcesImpl object that matches the given ResourcesKey, or
		* creates a new one and caches it for future use.
		* @param key The key to match.
		* @return a ResourcesImpl object matching the key.
		*/
		private @NonNull ResourcesImpl findOrCreateResourcesImplForKeyLocked(
		@NonNull ResourcesKey key) {
		ResourcesImpl impl = findResourcesImplForKeyLocked(key);
		if (impl == null) {
		impl = createResourcesImpl(key);
		mResourceImpls.put(key, new WeakReference<>(impl));
		}
		return impl;
		}

		/**
		* Find the ResourcesKey that this ResourcesImpl object is associated with.
		* @return the ResourcesKey or null if none was found.
		@@ -811,4 +827,75 @@ public class ResourcesManager {
		Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
		}
		}

		/**
		* Appends the library asset path to any ResourcesImpl object that contains the main
		* assetPath.
		* @param assetPath The main asset path for which to add the library asset path.
		* @param libAsset The library asset path to add.
		*/
		public void appendLibAssetForMainAssetPath(String assetPath, String libAsset) {
		synchronized (this) {
		// 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 ResourcesImpl impl = mResourceImpls.valueAt(i).get();
		final ResourcesKey key = mResourceImpls.keyAt(i);
		if (impl != null && key.mResDir.equals(assetPath)) {
		if (!ArrayUtils.contains(key.mLibDirs, libAsset)) {
		final int newLibAssetCount = 1 +
		(key.mLibDirs != null ? key.mLibDirs.length : 0);
		final String[] newLibAssets = new String[newLibAssetCount];
		if (key.mLibDirs != null) {
		System.arraycopy(key.mLibDirs, 0, newLibAssets, 0, key.mLibDirs.length);
		}
		newLibAssets[newLibAssetCount - 1] = libAsset;

		updatedResourceKeys.put(impl, new ResourcesKey(
		key.mResDir,
		key.mSplitResDirs,
		key.mOverlayDirs,
		newLibAssets,
		key.mDisplayId,
		key.mOverrideConfiguration,
		key.mCompatInfo));
		}
		}
		}

		// Bail early if there is no work to do.
		if (updatedResourceKeys.isEmpty()) {
		return;
		}

		// Update any references to ResourcesImpl that require reloading.
		final int resourcesCount = mResourceReferences.size();
		for (int i = 0; i < resourcesCount; i++) {
		final Resources r = mResourceReferences.get(i).get();
		if (r != null) {
		final ResourcesKey key = updatedResourceKeys.get(r.getImpl());
		if (key != null) {
		r.setImpl(findOrCreateResourcesImplForKeyLocked(key));
		}
		}
		}

		// Update any references to ResourcesImpl that require reloading for each Activity.
		for (ActivityResources activityResources : mActivityResourceReferences.values()) {
		final int resCount = activityResources.activityResources.size();
		for (int i = 0; i < resCount; i++) {
		final Resources r = activityResources.activityResources.get(i).get();
		if (r != null) {
		final ResourcesKey key = updatedResourceKeys.get(r.getImpl());
		if (key != null) {
		r.setImpl(findOrCreateResourcesImplForKeyLocked(key));
		}
		}
		}
		}
		}
		}
		}

core/java/android/webkit/WebViewDelegate.java

+28 −2

Original line number	Diff line number	Diff line
		@@ -21,7 +21,9 @@ import android.annotation.Nullable;
		import android.annotation.SystemApi;
		import android.app.ActivityThread;
		import android.app.Application;
		import android.app.ResourcesManager;
		import android.content.Context;
		import android.content.pm.ApplicationInfo;
		import android.content.res.Resources;
		import android.graphics.Canvas;
		import android.os.SystemProperties;
		@@ -31,6 +33,8 @@ import android.view.DisplayListCanvas;
		import android.view.View;
		import android.view.ViewRootImpl;

		import com.android.internal.util.ArrayUtils;

		/**
		* Delegate used by the WebView provider implementation to access
		* the required framework functionality needed to implement a {@link WebView}.
		@@ -177,7 +181,29 @@ public final class WebViewDelegate {
		* Adds the WebView asset path to {@link android.content.res.AssetManager}.
		*/
		public void addWebViewAssetPath(Context context) {
		context.getAssets().addAssetPathAsSharedLibrary(
		WebViewFactory.getLoadedPackageInfo().applicationInfo.sourceDir);
		final String newAssetPath = WebViewFactory.getLoadedPackageInfo().applicationInfo.sourceDir;

		final ApplicationInfo appInfo = context.getApplicationInfo();
		final String[] libs = appInfo.sharedLibraryFiles;
		if (!ArrayUtils.contains(libs, newAssetPath)) {
		// Build the new library asset path list.
		final int newLibAssetsCount = 1 + (libs != null ? libs.length : 0);
		final String[] newLibAssets = new String[newLibAssetsCount];
		if (libs != null) {
		System.arraycopy(libs, 0, newLibAssets, 0, libs.length);
		}
		newLibAssets[newLibAssetsCount - 1] = newAssetPath;

		// Update the ApplicationInfo object with the new list.
		// We know this will persist and future Resources created via ResourcesManager
		// will include the shared library because this ApplicationInfo comes from the
		// underlying LoadedApk in ContextImpl, which does not change during the life of the
		// application.
		appInfo.sharedLibraryFiles = newLibAssets;

		// Update existing Resources with the WebView library.
		ResourcesManager.getInstance().appendLibAssetForMainAssetPath(
		appInfo.getBaseResourcePath(), newAssetPath);
		}
		}
		}

libs/androidfw/ResourceTypes.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -6174,7 +6174,7 @@ status_t ResTable::parsePackage(const ResTable_package* const pkg,
		if (id >= 256) {
		LOG_ALWAYS_FATAL("Package id out of range");
		return NO_ERROR;
		} else if (id == 0 \|\| appAsLib \|\| isSystemAsset) {
		} else if (id == 0 \|\| (id == 0x7f && appAsLib) \|\| isSystemAsset) {
		// This is a library or a system asset, so assign an ID
		id = mNextPackageId++;
		}