BitmapDecoder.java 文件源码

public static Bitmap decodeSampled(InputStream is, int reqWidth, int reqHeight) {
    BitmapFactory.Options options = new BitmapFactory.Options();

    // RGB_565
    options.inPreferredConfig = Bitmap.Config.RGB_565;
    // sample size
    options.inSampleSize = getSampleSize(is, reqWidth, reqHeight);

    try {
        return BitmapFactory.decodeStream(is, null, options);
    } catch (OutOfMemoryError e) {
        e.printStackTrace();
    }

    return null;
}