Assigning retained object to weak property object

Assigning retained object to weak property object will be released after assignment

Assigning retained object to weak property object will be released after assignment

在ARC中，如果添加了weak的属性。初始化了相关的object然后给这个属性赋值的时候就会看到Xcode给出这个提示。

这个时候可以这么处理：在别的地方已经retain这个object的引用。

@property (nonatomic, weak) KGModalContainerView *containerView;
...
-(void)viewDidLoad {
[super viewDidLoad];
KGModalContainerView *myContainerView = [[KGModalContainerView alloc] initWithFrame:containerViewRect]; // This is a strong reference to that view
[self.view addSubview:myContainerView]; //Here self.view retains myContainerView
self.containerView = myContainerView; // Now self.containerView has weak reference to that view, but if your self.view removes this view, self.containerView will automatically go to nil.

// In the end ARC will release myContainerView, but it's retained by self.view and weak referenced by self.containerView
}

在这个例子中，先初始化了ContainerView。然后把这个View放到self.view的子View中，也就是retain了ContainerView。

然后再把ContainerView赋值给weak属性里。

各位都知道了吧。