iOS - 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即将显示的时候调用
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];

}
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];

}
布局控制器View的子控件完成时调用
-(void)viewDidLayoutSubviews{
[super viewDidLayoutSubviews];

}
控制器的View显示完成时调用
-(void)viewDidAppear:(BOOL)animated{
[super viewDidAppear: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];

}

ARC的生命周期
viewDidLoad->viewWillAppear->viewWillLayoutSubviews->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