ImageUtil.java 文件源码

public static Bitmap convert(Bitmap a) {
    int w = a.getWidth();
    int h = a.getHeight();
    Bitmap newb = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);// 创建一个新的和SRC长度宽度一样的位图
    Canvas cv = new Canvas(newb);
    Matrix m = new Matrix();
    //m.postScale(1, -1);   //镜像垂直翻转
    m.postScale(-1, 1);   //镜像水平翻转
    //m.postRotate(-90);  //旋转-90度
    Bitmap new2 = Bitmap.createBitmap(a, 0, 0, w, h, m, true);
    cv.drawBitmap(new2, new Rect(0, 0, new2.getWidth(), new2.getHeight()),new Rect(0, 0, w, h), null);
    return newb;
}