Window window = d.getWindow();
window.setFlags
(
WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
WindowManager.LayoutParams.FLAG_BLUR_BEHIND
);
创建一个背景模糊的windows

Window window = d.getWindow();
window.setFlags
(
WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
WindowManager.LayoutParams.FLAG_BLUR_BEHIND
);