Android DiaglogFragment 设置背景为透明

Android DiaglogFragment 设置背景为透明的方式如下:(找了一大圈,终于在国外的网站看到的答案,原文链接如下:http://stackoverflow.com/questions/20528552/cant-get-transparent-dialogfragment,需要连接外网才能上):

      

@Override
public void onStart() {
super.onStart();

Window window = getDialog().getWindow();
WindowManager.LayoutParams windowParams = window.getAttributes();
windowParams.dimAmount = 0.0f;

window.setAttributes(windowParams);
}