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監(jiān)聽(tīng)系統(tǒng)事件
程序加載完畢:
- 程序獲取焦點(diǎn)
-(void)applicationDidBecomeActive:(UIApplication *)application
- 程序進(jìn)入后臺(tái)
-(void)applicationDidEnterBackground:(UIApplication *)application
- 程序失去焦點(diǎn)
-(void)applicationWillResignActive:(UIApplication *)application
- 程序從后臺(tái)回到前臺(tái)
-(void)applicationWillEnterForeground:(UIApplication *)application
- 程序內(nèi)存警告，可能要終止程序
-(void)applicationDidReceiveMemoryWarning:(UIApplication *)application
- 程序即將退出
-(void)applicationWillTerminate:(UIApplication *)application
