00 - 控制器view生命周期

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00 - 控制器view生命周期

控制器View的生命周期方法:只要是控制器的生命周期方法,都是以view开头.

控制器View加载完成时调用

- (void)viewDidLoad {

     [super viewDidLoad];

}

控制器的View显示完成时调用

-(void)viewDidAppear:(BOOL)animated{

[super viewDidAppear:animated];

}

控制器的View即将显示的时候调用

-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

}

控制器的View完全消失的时候调用

-(void)viewDidDisappear:(BOOL)animated{

[super viewDidDisappear:animated];

}

控制器的View即将消失的时候调用.

-(void)viewWillDisappear:(BOOL)animated{

[super viewWillDisappear:animated];

}

布局控制器View的子控件完成时调用

-(void)viewDidLayoutSubviews{

[super viewDidLayoutSubviews];

}

将要布局控制器的View里面子控件的时候就会调用.

-(void)viewWillLayoutSubviews{

[super viewWillLayoutSubviews];

}

ARC的生命周期

viewDidLoad->viewWillAppear->viewDidLayoutSubviews->viewDidLayoutSubviews->viewDidAppear->

viewWillDisappear->viewDidDisappear

在非ARC当中.

当前控制器的View即将被销毁的时候会调用

-(void)viewWillUnload{

[super viewWillUnload];

}

当前控制器的View被销毁的时候会调用

-(void)viewDidUnload{

[super viewDidUnload];

     清空界面上的数据.

     self.dataList = nil;

}

viewDidLoad->viewWillAppear->viewDidLayoutSubviews->viewDidLayoutSubviews->viewDidAppear->

viewWillDisappear->viewDidDisappear->接收到内存警告->viewWillUnload->释放View->viewDidUnload

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