Android dialog 全屏

Android中让Dialog全屏： 
一、在style中定义样式：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="Transparent">
    <item name="android:windowBackground">@color/transparent_background</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowFullscreen">true</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowAnimationStyle">@+android:style/Animation.Translucent</item>
  </style>
</resources>  

 

其中transparent_background为颜色值：#50000000，透明度为50

二、代码中定义Dialog时添加样式：

View myLoginView = LayoutInflater.from(mContext).inflate(R.layout.activity_answer_category, null);
ListView cList = (ListView) myLoginView.findViewById(R.id.cagetoryList);
cList.setAdapter(new Adapter());
alertDialog = new Dialog(mContext, R.style.Transparent);
alertDialog.setContentView(myLoginView);
alertDialog.show();