Examples with MemoryTrimmableRegistry com.facebook.common.memory.MemoryTrimmableRegistry used on opensource projects

Example 1 with MemoryTrimmableRegistry

use of com.facebook.common.memory.MemoryTrimmableRegistry in project DevRing by LJYcoder.

the class FrescoManager method init.

@Override
public void init(Context context, final ImageConfig imageConfig) {
    mContext = context;
    mImageConfig = imageConfig;
    // 配置管理者
    ImagePipelineConfig.Builder imagePipelineConfigBuilder = ImagePipelineConfig.newBuilder(context);
    // 配置内存缓存（已解码部分的缓存）
    if (imageConfig.getMemoryCacheSize() > 0) {
        imagePipelineConfigBuilder.setBitmapMemoryCacheParamsSupplier(new Supplier<MemoryCacheParams>() {

            public MemoryCacheParams get() {
                MemoryCacheParams bitmapCacheParams = new // 
                MemoryCacheParams(// 可用最大内存数，以字节为单位
                imageConfig.getMemoryCacheSize(), // 内存中允许的最多图片数量
                Integer.MAX_VALUE, // 内存中准备清理但是尚未删除的总图片所可用的最大内存数，以字节为单位
                imageConfig.getMemoryCacheSize(), // 内存中准备清除的图片最大数量
                Integer.MAX_VALUE, // 内存中单图片的最大大小
                Integer.MAX_VALUE);
                return bitmapCacheParams;
            }
        });
    }
    // 配置磁盘缓存
    if (imageConfig.getDiskCacheFile() != null) {
        DiskCacheConfig.Builder diakBuilder = DiskCacheConfig.newBuilder(context);
        // 磁盘缓存目录路径
        diakBuilder.setBaseDirectoryPath(imageConfig.getDiskCacheFile().getParentFile());
        // 磁盘缓存目录名
        diakBuilder.setBaseDirectoryName(imageConfig.getDiskCacheFile().getName());
        // 磁盘缓存大小
        if (imageConfig.getDiskCacheSize() > 0)
            diakBuilder.setMaxCacheSize(imageConfig.getDiskCacheSize());
        imagePipelineConfigBuilder.setMainDiskCacheConfig(diakBuilder.build());
    } else if (imageConfig.isDiskCacheExternal()) {
        DiskCacheConfig.Builder diakBuilder = DiskCacheConfig.newBuilder(context);
        // 磁盘缓存目录路径
        diakBuilder.setBaseDirectoryPath(context.getExternalCacheDir());
        // 磁盘缓存目录名
        diakBuilder.setBaseDirectoryName("fresco_image_cache");
        // 磁盘缓存大小
        if (imageConfig.getDiskCacheSize() > 0)
            diakBuilder.setMaxCacheSize(imageConfig.getDiskCacheSize());
        imagePipelineConfigBuilder.setMainDiskCacheConfig(diakBuilder.build());
    }
    if (imageConfig.isUseOkhttp())
        imagePipelineConfigBuilder.setNetworkFetcher(new OkHttpNetworkFetcher(DevRing.ringComponent().okHttpClient()));
    // 当内存紧张时采取的措施
    MemoryTrimmableRegistry memoryTrimmableRegistry = NoOpMemoryTrimmableRegistry.getInstance();
    memoryTrimmableRegistry.registerMemoryTrimmable(new MemoryTrimmable() {

        @Override
        public void trim(MemoryTrimType trimType) {
            final double suggestedTrimRatio = trimType.getSuggestedTrimRatio();
            RingLog.e(String.format("onCreate suggestedTrimRatio : %f", suggestedTrimRatio));
            if (MemoryTrimType.OnCloseToDalvikHeapLimit.getSuggestedTrimRatio() == suggestedTrimRatio || MemoryTrimType.OnSystemLowMemoryWhileAppInBackground.getSuggestedTrimRatio() == suggestedTrimRatio || MemoryTrimType.OnSystemLowMemoryWhileAppInForeground.getSuggestedTrimRatio() == suggestedTrimRatio) {
                ImagePipelineFactory.getInstance().getImagePipeline().clearMemoryCaches();
            }
        }
    });
    imagePipelineConfigBuilder.setMemoryTrimmableRegistry(memoryTrimmableRegistry);
    /**
     * 在图片解码时根据ResizeOptions所设的宽高的像素进行解码，这样解码出来可以得到一个更小的Bitmap。
     * 必须和ImageRequest的ResizeOptions一起使用，ResizeOptions和DownsampleEnabled参数都不影响原图片的大小，影响的是EncodeImage的大小，
     * 进而影响Decode出来的Bitmap的大小，ResizeOptions须和此参数结合使用，
     * 是因为单独使用ResizeOptions的话只支持JPEG图，所以需支持png、jpg、webp需要先设置此参数。
     */
    imagePipelineConfigBuilder.setDownsampleEnabled(true);
    // 配置渐进式显示（使用默认效果），仅支持文件类型为JPEG的网络图片
    imagePipelineConfigBuilder.setProgressiveJpegConfig(new SimpleProgressiveJpegConfig());
    // 设置调试时，显示图片加载的Log
    FLog.setMinimumLoggingLevel(FLog.VERBOSE);
    Set<RequestListener> requestListeners = new HashSet<>();
    requestListeners.add(new RequestLoggingListener());
    imagePipelineConfigBuilder.setRequestListeners(requestListeners);
    // 进行初始化
    Fresco.initialize(context, imagePipelineConfigBuilder.build());
}

Example 2 with MemoryTrimmableRegistry

use of com.facebook.common.memory.MemoryTrimmableRegistry in project AgileDev by LZ9.

the class FrescoConfig method getMemoryTrimmableRegistryConfig.

/**
 * 报内存警告时的监听
 */
private MemoryTrimmableRegistry getMemoryTrimmableRegistryConfig() {
    MemoryTrimmableRegistry memoryTrimmableRegistry = NoOpMemoryTrimmableRegistry.getInstance();
    memoryTrimmableRegistry.registerMemoryTrimmable(new MemoryTrimmable() {

        @Override
        public void trim(MemoryTrimType trimType) {
            final double suggestedTrimRatio = trimType.getSuggestedTrimRatio();
            Log.w(TAG, "Fresco onCreate suggestedTrimRatio : " + suggestedTrimRatio);
            if (MemoryTrimType.OnCloseToDalvikHeapLimit.getSuggestedTrimRatio() == suggestedTrimRatio || MemoryTrimType.OnSystemLowMemoryWhileAppInBackground.getSuggestedTrimRatio() == suggestedTrimRatio || MemoryTrimType.OnSystemLowMemoryWhileAppInForeground.getSuggestedTrimRatio() == suggestedTrimRatio) {
                // 清除内存缓存
                Fresco.getImagePipeline().clearMemoryCaches();
            }
        }
    });
    return memoryTrimmableRegistry;
}