因此，我再建立一个继承UIView的视图类。在这个视图类中，覆盖hitTest:withEvent:方法，增加[self endEditing:YES]方法。
(UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView *result = [super hitTest:point withEvent:event];
[self endEditing:YES]
return result;
}
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView *result = [super hitTest:point withEvent:event];
[self endEditing:YES]
return result;
}
我将视图控制器的主视图所属类修改为这个新建视图类。这样在屏幕上轻击任何位置都会关闭虚拟键盘。 这个方法是最简单，也是最好的关闭虚拟键盘的方法。 使用好hitTest:withEvent:这个方法，还可以实现很多很复杂的功能。
The implementation of hitTest:withEvent: in UIResponder does the following:
• It calls pointInside:withEvent: of self
• If the return is NO, hitTest:withEvent: returns nil. the end of the story.
• If the return is YES, it sends hitTest:withEvent: messages to its subviews. it starts from the top-level subview, and continues to other views until a subview returns a non-nil object, or all subviews receive the message.
• If a subview returns a non-nil object in the first time, the first hitTest:withEvent: returns that object. the end of the story.
• If no subview returns a non-nil object, the first hitTest:withEvent: returns self
This process repeats recursively, so normally the leaf view of the view hierarchy is returned eventually. However, you might override hitTest:withEvent to do something differently. In many cases, overriding pointInside:withEvent: is simpler and still provides enough options to tweak event handling in your application.
以上给大家介绍了六种iOS关闭虚拟键盘的方法，大家可以根据个人需要选择一种适合自己比较好的方法。同时也非常感谢大家对ASPKU网站的支持！
注：相关教程知识阅读请移步到IOS开发频道。
