SkiaPooledImageRegionDecoder.java 文件源码

private synchronized BitmapRegionDecoder getNextAvailable() {
    for (Map.Entry<BitmapRegionDecoder, Boolean> entry : decoders.entrySet()) {
        if (!entry.getValue()) {
            entry.setValue(true);
            return entry.getKey();
        }
    }
    return null;
}