Controller里视图的出现,消失方法

#pragma mark 视图将要出现

-(void)viewWillAppear:(BOOL)animated

{

    [super viewDidAppear:animated];

    NSLog(@"%s",__FUNCTION__);

}

//视图已经出现

//手动加警告

#warning 这个方法是视图已经出现

-(void)viewDidAppear:(BOOL)animated

{

    [super viewDidAppear:animated];

     NSLog(@"%s",__FUNCTION__);

}

//视图将要消失

-(void)viewWillDisappear:(BOOL)animated

{

    [super viewWillDisappear:animated];

      NSLog(@"%s",__FUNCTION__);

}

//视图已经消失

-(void)viewDidDisappear:(BOOL)animated

{

    [super viewDidDisappear:animated];

     NSLog(@"%s",__FUNCTION__);

}