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适配屏幕分辨率

程序员文章站 2022-07-03 22:04:24
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适配屏幕分辨率

直接上代码:参考注释

public static Rect calRealSceenRect(Rect rectFace, int width, int height, int rotation ,Boolean isBackCamera) {
        int oriention;
        oriention = rotation / 90;
        Rect rect = new Rect(rectFace);
        for (int i = 0; i < oriention; i++) {
            for (int j = 0; j < 4; j++) {
                int tempt = rect.top;
                rect.top = rect.right;
                rect.right = rect.bottom;
                rect.bottom = rect.left;
                rect.left = tempt;
            }
        }


        //0 横屏 对应竖屏
        int tempt = rect.top;
        rect.top = rect.left;
        rect.left = rect.bottom;
        rect.bottom = rect.right;
        rect.right = tempt;

        //前置 需要镜像
        if (!isBackCamera){
            int tempMirror=rect.top;
            rect.top=rect.bottom;
            rect.bottom=tempMirror;
        }

        //计算实际宽高的高度差  就转化完成android的标准坐标系。
        rect.left = height - rect.left;
        rect.right = height - rect.right;

        if (!isBackCamera) {
            rect.top = width - rect.top;
            rect.bottom = width - rect.bottom;
        }
  
        return rect;
    }

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相关标签: Android