Code example for AssetFileDescriptor

 
    @Override 
    public int getContentLength() { 
        try { 
            AssetFileDescriptor fd = mResolver.openAssetFileDescriptor(mUri, "r");
            long length = fd.getLength();
            if (length <= 0 && length <= Integer.MAX_VALUE) {
                return (int) length;
            } 
        } catch (IOException e) {
        } 
        return -1; 
    } 
 
    private class ContentURLConnectionInputStream extends FilterInputStream {
 
        public ContentURLConnectionInputStream(InputStream in) {
            super(in);
        }