IOS中ViewController(控制器)的生命周期

/** *  view加载完毕 */- (void)viewDidLoad{    [superviewDidLoad];  }/** *  view即将显示到window上 * */- (void)viewWillAppear:(BOOL)animated{    [superviewWillAppear:animated];}/** *  view显示完毕(已经显示到窗口) */- (void)viewDidAppear:(BOOL)animated{    [superviewDidAppear:animated]; }/** *  view即将从window上移除(即将看不见) * */- (void)viewWillDisappear:(BOOL)animated{    [superviewWillDisappear:animated];   }/** *  view从window上完全移除(完全看不见) * */- (void)viewDidDisappear:(BOOL)animated{    [superviewDidDisappear:animated]; }/** *  view即将销毁的时候调用 */- (void)viewWillUnload{    [superviewWillUnload];}/** *  view销毁完毕的时候调用 */- (void)viewDidUnload{    [superviewDidUnload];        // 由于控制器的view已经不在了,需要显示在view上面的一些数据也不需要   // self.apps = nil;   // self.persons = nil;}/** *  当接收到内存警告的时候 */- (void)didReceiveMemoryWarning{    [superdidReceiveMemoryWarning];}