布局文件根布局加
android:background="@drawable/rectangle"
rectangle.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<!--填充颜色-->
<solid android:color="@color/white"></solid>
<!--线的宽度、颜色-->
<stroke android:width="2dp" android:color="@color/white"/>
<!--矩形圆角-->
<corners android:radius="15dp"/>
</shape>
styles.xml
<!-- 自定义loading dialog -->
<style name="loading_dialog" parent="android:style/Theme.Dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowBackground">@android:drawable/screen_background_light</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowContentOverlay">@null</item>
</style>
createDialog 时将默认背景改成透明的,不然带着4个角
loadingDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
LayoutInflater inflater = LayoutInflater.from(context);
View v = inflater.inflate(R.layout.loading_dialog, null);// 得到加载view
Dialog loadingDialog = new Dialog(context, R.style.loading_dialog);// 创建自定义样式dialog
loadingDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
loadingDialog.setCancelable(false);// 不可以用“返回键”取消
loadingDialog.setContentView(layout, new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.FILL_PARENT));// 设置布局
return loadingDialog;