iOS 控制器View的生命周期

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

//控制器View加載完成時調  
  - (void)viewDidLoad {
    [super viewDidLoad];
 }
//控制器的View顯示完成時調
  -(void)viewDidAppear:(BOOL)animated{
   [super viewDidAppear:animated];
}
//控制器的View即将顯示的時候調
  -(void)viewWillAppear:(BOOL)animated{
   [super viewWillAppear:animated];
}
//控制器的View完全消失的時候調用
 -(void)viewDidDisappear:(BOOL)animated{
  [super viewDidDisappear:animated];
}
//控制器的View即将消失的時候調用.
 -(void)viewWillDisappear:(BOOL)animated{
  [super viewWillDisappear:animated];
}
//布局控制器View的子控件完成時調
  -(void)viewDidLayoutSubviews{
   [super viewDidLayoutSubviews];
}
//将要布局控制器的View的子控件的時候就會調用.
  -(void)viewWillLayoutSubviews{
    [super viewWillLayoutSubviews];
}


//ARC的生命周期 viewDidLoad->viewWillAppear->viewDidLayoutSubviews->viewDidLayoutSubviews- >viewDidAppear->viewWillDisappear->viewDidDisappear


//在非ARC當中. 目前控制器的View即将被銷毀的時候會調
  -(void)viewWillUnload{
    [super viewWillUnload];
}
//目前控制器的View被銷毀的時候會調用
 -(void)viewDidUnload{
    [super viewDidUnload];
    //清空界面上的資料.
    self.dataList = nil; 
}

//viewDidLoad->viewWillAppear->viewDidLayoutSubviews->viewDidLayoutSubviews- >viewDidAppear-> viewWillDisappear->viewDidDisappear->接收到記憶體警告->viewWillUnload->釋放View- >viewDidUnload