ios关于控制器的生命周期

//控制器View加载完毕

- (void)viewDidLoad {

    [super viewDidLoad];

    

    NSLog(@"%s",__FUNCTION__);

    

}

//控制器View即将显示

- (void)viewWillAppear:(BOOL)animated

{

    [super viewWillAppear:YES];

    NSLog(@"%s",__FUNCTION__);

    

}

//控制器View显示完毕

- (void)viewDidAppear:(BOOL)animated

{

    [super viewDidAppear:YES];

    NSLog(@"%s",__FUNCTION__);

    

}

//控制器View即将消失

- (void)viewWillDisappear:(BOOL)animated

{

    [super viewWillDisappear:YES];

    NSLog(@"%s",__FUNCTION__);

}

//控制器View完全消失

- (void)viewDidDisappear:(BOOL)animated

{

    [super viewDidDisappear:YES];

    NSLog(@"%s",__FUNCTION__);

}