ThumbnailRequestHandler.java 文件源码

private static Bitmap decodeResource(Resources resources, int id, Request data) {
    final BitmapFactory.Options options = createBitmapOptions(data);
    if (requiresInSampleSize(options)) {
        BitmapFactory.decodeResource(resources, id, options);
        calculateInSampleSize(data.targetWidth, data.targetHeight, options, data);
    }
    return BitmapFactory.decodeResource(resources, id, options);
}