1.目前項(xiàng)目中常用通過(guò)WindowManager獲取手機(jī)屏幕的寬高來(lái)做一些UI展示，但是不兼容全面屏手機(jī)诚隙，手機(jī)分辨率2160 * 1080讶隐， 比如小米Mix2、錘子堅(jiān)果Pro2等機(jī)型

Display display = activity.getWindowManager().getDefaultDisplay();
int widths = display.getWidth();
int heights = display.getHeight(); //全面屏手機(jī)獲取的高度是2030,不包含底部的虛擬按鍵高度

解決的方法是通過(guò)獲取頂層Window寬高

View view = activity.getWindow().getDecorView();
int widths = view.getWidth();
int heights = view.getHeight(); //高度是2160

2.自定義Dialog可以通過(guò)獲取Window設(shè)置寬高

Window dialogWindow = dialog.getWindow();
lp = dialogWindow.getAttributes();
lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
lp.height = ViewGroup.LayoutParams.MATCH_PARENT; //注意一定要是MATCH_PARENT
dialogWindow.setAttributes(lp);

處理高斯模糊背景的dialog截屏的核心代碼

    /**
     * 截屏
     */
    public static Bitmap takeScreenShot(Activity activity) {
        Bitmap b = null;
        try {
            // 獲取windows中最頂層的view
            View view = activity.getWindow().getDecorView();
            view.buildDrawingCache();

            // 獲取狀態(tài)欄高度
            Rect rect = new Rect();
            view.getWindowVisibleDisplayFrame(rect);
            int statusBarHeights = rect.top;

            int widths = view.getWidth();
            int heights = view.getHeight();

            //此獲取寬高的方式不適用全名屏, 不會(huì)包含底部的虛擬按鍵高度, 導(dǎo)致截屏過(guò)程中缺少這部分高度
            //Display display = activity.getWindowManager().getDefaultDisplay();
            // 獲取屏幕寬和高
            //int widths = display.getWidth();
            //int heights = display.getHeight();

            // 允許當(dāng)前窗口保存緩存信息
            view.setDrawingCacheEnabled(true);

            // 去掉狀態(tài)欄
            b = Bitmap.createBitmap(view.getDrawingCache(), 0,
                    statusBarHeights, widths, heights - statusBarHeights);

            // 銷(xiāo)毀緩存信息
            view.destroyDrawingCache();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return b;
    }

3.處理效果對(duì)比:
上下空白間距

對(duì)比照01.png

底部模糊未覆蓋

對(duì)比照3.png