控制器的生命周期

 */

/**

 *  view加载完毕

 */

- (void)viewDidLoad

{

    [super viewDidLoad];

    

    NSLog(@"MJOneViewController-viewDidLoad");

}

/**

 *  view即将显示到window上

 *

 */

- (void)viewWillAppear:(BOOL)animated

{

    [super viewWillAppear:animated];

    

    NSLog(@"MJOneViewController-viewWillAppear");

}

/**

 *  view显示完毕(已经显示到窗口)

 */

- (void)viewDidAppear:(BOOL)animated

{

    [super viewDidAppear:animated];

    

    NSLog(@"MJOneViewController-viewDidAppear");

}

/**

 *  view即将从window上移除(即将看不见)

 *

 */

- (void)viewWillDisappear:(BOOL)animated

{

    [super viewWillDisappear:animated];

    

    NSLog(@"MJOneViewController-viewWillDisappear");

}

/**

 *  view从window上完全移除(完全看不见)

 *

 */

- (void)viewDidDisappear:(BOOL)animated

{

    [super viewDidDisappear:animated];

    

    NSLog(@"MJOneViewController-viewDidDisappear");

}

/**

 *  view即将销毁的时候调用

 */

- (void)viewWillUnload

{

    [super viewWillUnload];

}

/**

 *  view销毁完毕的时候调用

 */

- (void)viewDidUnload

{

    [super viewDidUnload];

    

    // 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;

//    

//    [self.apps release];

//    [self.persons release];

}

/**

 *  当接收到内存警告的时候

 */

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

}

原文地址:https://www.cnblogs.com/qq907374866/p/4337085.html