隐藏状态栏

隐藏状态栏的方法：sharedApplication 

1、pList设置方法为：设置UIStatusBarHidden键值为True

2、代码里写：[[UIApplication sharedApplication] setStatusBarHidden: YES animated:NO];

3、在AppDelegate文件中
-(void) applicationDidFinishLaunching:(UIApplication *)application
{

     [application setStatusBarHidden: YES animated:NO];

}