華爲7.0 Popupwindow 閃爍

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在華爲Android7.0 中設置Window透明後 popupwindow 一直閃爍

添加Flag

        Window window = mActivity.getWindow();
        WindowManager.LayoutParams lp = window.getAttributes();
        window.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
        lp.alpha = i;
        window.setAttributes(lp);