iOS ViewController点击空白处收起键盘

点击ViewController空白处时收起键盘，能够经过系统的touchesBegan方法实现，具体以下：objective-c Objective-C 版swift - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self.view endEditing:YES]; } 1 2 3 1

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