//控制器View加載完畢時
- (void)viewDidLoad;
//控制器VIew的即將顯示
- (void)viewWillAppear:(BOOL)animated;
//控制器View已經顯示
- (void)viewDidAppear:(BOOL)animated;
//控制器View即將消失
- (void)viewWillDisappear:(BOOL)animated;
//控制器View已經消失
- (void)viewDidDisappear:(BOOL)animated;
//內存警告釋放內存
- (void)didReceiveMemoryWarning
//過時的方法
//控制器View即將被銷毀
- (void)viewWillUnload
//控制器的View 已經被銷毀
- (void)viewDidUnload
QQ20161106-0.png
程序的啟動過程
chengxu.png