查找作为第一响应者的视图 [英] Find View that is the firstresponder

问题描述

我想获得第一个响应者的视图，目前我有一个包含UITextFields的UITableView，使用方法：

I would like to get the view that is the first responder, currently I have a UITableView that contains UITextFields, using a method:

-(UIView*) findFirstResponder
{

}

我希望能够获得第一个响应者视图，然后对该视图执行某些操作。

I would like to be able to get the view that is the firstResponder and then do something with that view.

任何想法？

推荐答案

我所要做的只是

@implementation UIView (FindViewThatIsFirstResponder)
- (UIView *)findViewThatIsFirstResponder
{
    if (self.isFirstResponder) {        
        return self;     
    }

    for (UIView *subView in self.subviews) {
        UIView *firstResponder = [subView findViewThatIsFirstResponder];
        if (firstResponder != nil) {
            return firstResponder;
        }
    }

    return nil;
}
@end

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