向 @selector 传递一个对象
我在 UIView 上有一个动画块，并且想向我的 animationDidStopSelector 传递一个对象，以便当我的动画完成时，可以从数组中删除该对象。
下面的代码，不起作用。
[UIView setAnimationDidStopSelector:@selector(animationDidStopWithObject:)];
self.dialogController.view.alpha=1;
[UIView commitAnimations];
[self.view addSubview:self.dialogController.view];
}
- (void)animationDidStopWithObject:(NSString*)obj {
[items removeObject:obj];
[self.tableView reloadData];
}
我如何向我的选择器传递一个对象？
谢谢
I have an animation block on a UIView, and would like to pass my animationDidStopSelector an object, so that when my animation finishes, the object can be removed from an array.
The following code, doesn't work.
[UIView setAnimationDidStopSelector:@selector(animationDidStopWithObject:)];
self.dialogController.view.alpha=1;
[UIView commitAnimations];
[self.view addSubview:self.dialogController.view];
}
- (void)animationDidStopWithObject:(NSString*)obj {
[items removeObject:obj];
[self.tableView reloadData];
}
How can i pass my selector an object?
Thanks
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检查 UIView 参考。您传递给 +setAnimationDisStopSelector: 方法的选择器必须采用以下形式
您可以使用动画上下文将对象传递给该选择器（在 +beginAnimations:context: 调用中作为参数传递的 void* 指针）
Check UIView reference. Selector you pass to +setAnimationDisStopSelector: method must be of the form
You can pass your object to that selector using animations context (void* pointer passed as parameter in +beginAnimations:context: call)
您的选择器需要遵循签名：
- (void)animationDidStop:(NSString *)animationID finish:(NSNumber *)finished context:(void *)context并传递一个自定义对象，这就是什么
context用于：您使用[UIView beginAnimations:someId context:yourCustomObject];设置它。请注意，yourCustomObject不会被保留！Your selector needs to follow the signature:
- (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)contextAnd to pass it a custom object, that's what the
contextis used for: you set it with[UIView beginAnimations:someId context:yourCustomObject];. Note thatyourCustomObjectis not retained !您不能只传递带有任意数量参数的任意选择器。如果您检查文档，它需要采用以下形式
：以下是相关文档：
http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/UIView/UIView.html#// apple_ref/occ/clm/UIView/setAnimationDidStopSelector：
You can't just pass an arbitrary selector with an arbitrary number of arguments. If you check the documentation, it needs to be of the form
Here are the relevant docs:
http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/UIView/UIView.html#//apple_ref/occ/clm/UIView/setAnimationDidStopSelector: