Android 缩略图

最新推荐文章于 2025-07-13 09:35:35 发布

转载最新推荐文章于 2025-07-13 09:35:35 发布 · 376 阅读

public static Bitmap readBitMap(Context context, int resId) {

    BitmapFactory.Options opt = new BitmapFactory.Options();

    opt.inPreferredConfig = Bitmap.Config.RGB_565;

    opt.inPurgeable = true;

    opt.inInputShareable = true;
    opt.inJustDecodeBounds = false;
    int be = opt.outHeight / 20;
    if (be % 10 != 0)
        be += 10;
    be = be / 10;
    if (be <= 0)
        be = 1;
    opt.inSampleSize = be;
    InputStream is = context.getResources().openRawResource(resId);
    return BitmapFactory.decodeStream(is, null, opt);

}