android 半透明圆角dialog的简单实现

<style name="TransparencyDlg" >
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowIsFloating">true</item><!-- 是否漂现在activity上-->
<item name="android:backgroundDimEnabled">false</item><!-- dim:模糊的 阴影效果 -->
<item name="android:windowContentOverlay">@null</item>
</style>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp"
android:background="@drawable/dlg_load_simple"
android:gravity="center"
>
<ProgressBar
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/pr"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid android:color="@color/thuise" />
<corners android:radius="10dp" />
</shape>
</item>

</selector>