android编程开发之全屏和退出全屏的实现方法

<button
  android:id="@+id/button5"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="@string/fullscreen" 
  android:onclick="changescreen"/>

private static boolean isfull=true;
//全屏设置和退出全屏
private void setfullscreen(){
   //requestwindowfeature(window.feature_no_title); 
   getwindow().setflags(windowmanager.layoutparams.flag_fullscreen,windowmanager.layoutparams.flag_fullscreen);
   isfull=true;
}
private void quitfullscreen(){
   final windowmanager.layoutparams attrs = getwindow().getattributes();
   attrs.flags &= (~windowmanager.layoutparams.flag_fullscreen);
   getwindow().setattributes(attrs);
   getwindow().clearflags(windowmanager.layoutparams.flag_layout_no_limits);
   //requestwindowfeature(window.feature_custom_title);
   isfull=false;
}
public void changescreen(view view)
{
  if(isfull==true)
  {
   quitfullscreen();
  }
  else
  {
   setfullscreen();
  }
}

@override
public void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  // remove title bar  
  this.requestwindowfeature(window.feature_no_title); 
  // full screen 
  this.getwindow().setflags(windowmanager.layoutparams.flag_fullscreen,windowmanager.layoutparams.flag_fullscreen); 
  setcontentview(r.layout.main);
}