弹出窗口暗淡或模糊背景

您可以
通过2种方式做到这一点：1.通过将具有透明度的背景色添加到弹出式布局的父级。例：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cc000000">

<YOUR_POPUP_VIEW
.... /> 
</RelativeLayout>

2. WindowManager.LayoutParams layoutParams = getWindow().getAttributes(); layoutParams.dimAmount = #WHAT_EVER_VALUE_YOU_WANT_TO_KEEP; //Generally in between 0.70f to 0.80f getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); getWindow().setAttributes(layoutParams);