Examples with ResourcesImpl android.content.res.ResourcesImpl used on opensource projects

Example 1 with ResourcesImpl

use of android.content.res.ResourcesImpl in project platform_frameworks_base by android.

the class ResourcesManager method invalidatePath.

/**
     * Invalidate and destroy any resources that reference content under the
     * given filesystem path. Typically used when unmounting a storage device to
     * try as hard as possible to release any open FDs.
     */
public void invalidatePath(String path) {
    synchronized (this) {
        int count = 0;
        for (int i = 0; i < mResourceImpls.size(); ) {
            final ResourcesKey key = mResourceImpls.keyAt(i);
            if (key.isPathReferenced(path)) {
                final ResourcesImpl res = mResourceImpls.removeAt(i).get();
                if (res != null) {
                    res.flushLayoutCache();
                }
                count++;
            } else {
                i++;
            }
        }
        Log.i(TAG, "Invalidated " + count + " asset managers that referenced " + path);
    }
}

Example 2 with ResourcesImpl

use of android.content.res.ResourcesImpl in project platform_frameworks_base by android.

the class ResourcesManager method updateResourcesForActivity.

/**
     * Updates an Activity's Resources object with overrideConfig. The Resources object
     * that was previously returned by
     * {@link #getResources(IBinder, String, String[], String[], String[], int, Configuration,
     * CompatibilityInfo, ClassLoader)} is
     * still valid and will have the updated configuration.
     * @param activityToken The Activity token.
     * @param overrideConfig The configuration override to update.
     */
public void updateResourcesForActivity(@NonNull IBinder activityToken, @Nullable Configuration overrideConfig) {
    try {
        Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "ResourcesManager#updateResourcesForActivity");
        synchronized (this) {
            final ActivityResources activityResources = getOrCreateActivityResourcesStructLocked(activityToken);
            if (Objects.equals(activityResources.overrideConfig, overrideConfig)) {
                // They are the same, no work to do.
                return;
            }
            // Grab a copy of the old configuration so we can create the delta's of each
            // Resources object associated with this Activity.
            final Configuration oldConfig = new Configuration(activityResources.overrideConfig);
            // Update the Activity's base override.
            if (overrideConfig != null) {
                activityResources.overrideConfig.setTo(overrideConfig);
            } else {
                activityResources.overrideConfig.setToDefaults();
            }
            if (DEBUG) {
                Throwable here = new Throwable();
                here.fillInStackTrace();
                Slog.d(TAG, "updating resources override for activity=" + activityToken + " from oldConfig=" + Configuration.resourceQualifierString(oldConfig) + " to newConfig=" + Configuration.resourceQualifierString(activityResources.overrideConfig), here);
            }
            final boolean activityHasOverrideConfig = !activityResources.overrideConfig.equals(Configuration.EMPTY);
            // Rebase each Resources associated with this Activity.
            final int refCount = activityResources.activityResources.size();
            for (int i = 0; i < refCount; i++) {
                WeakReference<Resources> weakResRef = activityResources.activityResources.get(i);
                Resources resources = weakResRef.get();
                if (resources == null) {
                    continue;
                }
                // Extract the ResourcesKey that was last used to create the Resources for this
                // activity.
                final ResourcesKey oldKey = findKeyForResourceImplLocked(resources.getImpl());
                if (oldKey == null) {
                    Slog.e(TAG, "can't find ResourcesKey for resources impl=" + resources.getImpl());
                    continue;
                }
                // Build the new override configuration for this ResourcesKey.
                final Configuration rebasedOverrideConfig = new Configuration();
                if (overrideConfig != null) {
                    rebasedOverrideConfig.setTo(overrideConfig);
                }
                if (activityHasOverrideConfig && oldKey.hasOverrideConfiguration()) {
                    // Generate a delta between the old base Activity override configuration and
                    // the actual final override configuration that was used to figure out the
                    // real delta this Resources object wanted.
                    Configuration overrideOverrideConfig = Configuration.generateDelta(oldConfig, oldKey.mOverrideConfiguration);
                    rebasedOverrideConfig.updateFrom(overrideOverrideConfig);
                }
                // Create the new ResourcesKey with the rebased override config.
                final ResourcesKey newKey = new ResourcesKey(oldKey.mResDir, oldKey.mSplitResDirs, oldKey.mOverlayDirs, oldKey.mLibDirs, oldKey.mDisplayId, rebasedOverrideConfig, oldKey.mCompatInfo);
                if (DEBUG) {
                    Slog.d(TAG, "rebasing ref=" + resources + " from oldKey=" + oldKey + " to newKey=" + newKey);
                }
                ResourcesImpl resourcesImpl = findResourcesImplForKeyLocked(newKey);
                if (resourcesImpl == null) {
                    resourcesImpl = createResourcesImpl(newKey);
                    if (resourcesImpl != null) {
                        mResourceImpls.put(newKey, new WeakReference<>(resourcesImpl));
                    }
                }
                if (resourcesImpl != null && resourcesImpl != resources.getImpl()) {
                    // Set the ResourcesImpl, updating it for all users of this Resources
                    // object.
                    resources.setImpl(resourcesImpl);
                }
            }
        }
    } finally {
        Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
    }
}

Example 3 with ResourcesImpl

use of android.content.res.ResourcesImpl in project platform_frameworks_base by android.

the class ResourcesManager method applyConfigurationToResourcesLocked.

public final boolean applyConfigurationToResourcesLocked(@NonNull Configuration config, @Nullable CompatibilityInfo compat) {
    try {
        Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "ResourcesManager#applyConfigurationToResourcesLocked");
        if (!mResConfiguration.isOtherSeqNewer(config) && compat == null) {
            if (DEBUG || DEBUG_CONFIGURATION)
                Slog.v(TAG, "Skipping new config: curSeq=" + mResConfiguration.seq + ", newSeq=" + config.seq);
            return false;
        }
        int changes = mResConfiguration.updateFrom(config);
        // Things might have changed in display manager, so clear the cached displays.
        mDisplays.clear();
        DisplayMetrics defaultDisplayMetrics = getDisplayMetrics();
        if (compat != null && (mResCompatibilityInfo == null || !mResCompatibilityInfo.equals(compat))) {
            mResCompatibilityInfo = compat;
            changes |= ActivityInfo.CONFIG_SCREEN_LAYOUT | ActivityInfo.CONFIG_SCREEN_SIZE | ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
        }
        Resources.updateSystemConfiguration(config, defaultDisplayMetrics, compat);
        ApplicationPackageManager.configurationChanged();
        //Slog.i(TAG, "Configuration changed in " + currentPackageName());
        Configuration tmpConfig = null;
        for (int i = mResourceImpls.size() - 1; i >= 0; i--) {
            ResourcesKey key = mResourceImpls.keyAt(i);
            WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.valueAt(i);
            ResourcesImpl r = weakImplRef != null ? weakImplRef.get() : null;
            if (r != null) {
                if (DEBUG || DEBUG_CONFIGURATION)
                    Slog.v(TAG, "Changing resources " + r + " config to: " + config);
                int displayId = key.mDisplayId;
                boolean isDefaultDisplay = (displayId == Display.DEFAULT_DISPLAY);
                DisplayMetrics dm = defaultDisplayMetrics;
                final boolean hasOverrideConfiguration = key.hasOverrideConfiguration();
                if (!isDefaultDisplay || hasOverrideConfiguration) {
                    if (tmpConfig == null) {
                        tmpConfig = new Configuration();
                    }
                    tmpConfig.setTo(config);
                    if (!isDefaultDisplay) {
                        // Get new DisplayMetrics based on the DisplayAdjustments given
                        // to the ResourcesImpl. Udate a copy if the CompatibilityInfo
                        // changed, because the ResourcesImpl object will handle the
                        // update internally.
                        DisplayAdjustments daj = r.getDisplayAdjustments();
                        if (compat != null) {
                            daj = new DisplayAdjustments(daj);
                            daj.setCompatibilityInfo(compat);
                        }
                        dm = getDisplayMetrics(displayId, daj);
                        applyNonDefaultDisplayMetricsToConfiguration(dm, tmpConfig);
                    }
                    if (hasOverrideConfiguration) {
                        tmpConfig.updateFrom(key.mOverrideConfiguration);
                    }
                    r.updateConfiguration(tmpConfig, dm, compat);
                } else {
                    r.updateConfiguration(config, dm, compat);
                }
            //Slog.i(TAG, "Updated app resources " + v.getKey()
            //        + " " + r + ": " + r.getConfiguration());
            } else {
                //Slog.i(TAG, "Removing old resources " + v.getKey());
                mResourceImpls.removeAt(i);
            }
        }
        return changes != 0;
    } finally {
        Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
    }
}

Example 4 with ResourcesImpl

use of android.content.res.ResourcesImpl in project platform_frameworks_base by android.

the class ResourcesManager method appendLibAssetForMainAssetPath.

/**
     * 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 ResourcesKey key = mResourceImpls.keyAt(i);
            final WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.valueAt(i);
            final ResourcesImpl impl = weakImplRef != null ? weakImplRef.get() : null;
            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) {
                    final ResourcesImpl impl = findOrCreateResourcesImplForKeyLocked(key);
                    if (impl == null) {
                        throw new Resources.NotFoundException("failed to load " + libAsset);
                    }
                    r.setImpl(impl);
                }
            }
        }
        // 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) {
                        final ResourcesImpl impl = findOrCreateResourcesImplForKeyLocked(key);
                        if (impl == null) {
                            throw new Resources.NotFoundException("failed to load " + libAsset);
                        }
                        r.setImpl(impl);
                    }
                }
            }
        }
    }
}

Example 5 with ResourcesImpl

use of android.content.res.ResourcesImpl in project platform_frameworks_base by android.

the class ResourcesManager method findKeyForResourceImplLocked.

/**
     * Find the ResourcesKey that this ResourcesImpl object is associated with.
     * @return the ResourcesKey or null if none was found.
     */
@Nullable
private ResourcesKey findKeyForResourceImplLocked(@NonNull ResourcesImpl resourceImpl) {
    final int refCount = mResourceImpls.size();
    for (int i = 0; i < refCount; i++) {
        WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.valueAt(i);
        ResourcesImpl impl = weakImplRef != null ? weakImplRef.get() : null;
        if (impl != null && resourceImpl == impl) {
            return mResourceImpls.keyAt(i);
        }
    }
    return null;
}