1> the whole application symbolizes that an application is a UIApplication object and uses the singleton design mode.
2> access this singleton object through [UIApplication sharedApplication]
App. applicationIconBadgeNumber = 10;
App. statusBarStyle = UIStatusBarStyleBlackOpaque;
App. statusBarHidden = YES;
App. networkActivityIndicatorVisible = YES;
* Open a webpage
[App openURL: [NSURL URLWithString: @ "http://www.baidu.com"];
* Call
[App openURL: [NSURL URLWithString: @ "tel: // 10086"];
* Text message
[App openURL: [NSURL URLWithString: @ "sms: // 10086"];
@ Property (nonatomic, assign) id <UIApplicationDelegate> delegate;
-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions
-(Void) applicationWillResignActive :( UIApplication *) application
-(Void) applicationDidEnterBackground :( UIApplication *) application
-(Void) applicationWillEnterForeground :( UIApplication *) application
-(Void) applicationDidBecomeActive :( UIApplication *) application
-(Void) applicationWillTerminate :( UIApplication *) application
-(Void) applicationDidReceiveMemoryWarning :( UIApplication *) application
Clear Saup