问调整图像大小时，安卓获取java.lang.OutOfMemoryError

EN

 public static Bitmap getImage(Context c, Uri uri, final int requiredSize)
        throws FileNotFoundException {
    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;
    BitmapFactory.decodeStream(c.getContentResolver().openInputStream(uri), null, o);

    int width_tmp = o.outWidth
            , height_tmp = o.outHeight;
    int scale = 1;

    while(true) {
        if(width_tmp / 2 < requiredSize || height_tmp / 2 < requiredSize)
            break;
        width_tmp /= 2;
        height_tmp /= 2;
        scale *= 2;
    }

    BitmapFactory.Options o2 = new BitmapFactory.Options();
    o2.inSampleSize = scale;
    return BitmapFactory.decodeStream(c.getContentResolver().openInputStream(uri), null, o2); //This is the line that's getting the error
}