iOS隐藏键盘

1. 点击空白处隐藏键盘

 1 - （void）viewDidLoad(){
 2     ......
 3 //点击空白处隐藏键盘
 4     self.view.userInteractionEnabled = YES;
 5     UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(fingerTapped:)];
 6 
 7     [self.view addGestureRecognizer:singleTap];
 8 }
 9 
10 
11 -(void)fingerTapped:(UITapGestureRecognizer *)gestureRecognizer
12 {
13     [self.view endEditing:YES];
14 }
 

2. 点击return（换行）隐藏键盘