iOS点击空白处或点击背景收起键盘

1.在viewDidLoad中添加手势

- (void)viewDidLoad{

[super viewDidLoad];

//添加手势

UITapGestureRecognizer *tap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewTapped:)];
tap1.cancelsTouchesInView = NO;
[self.view addGestureRecognizer:tap1];

}

 

而后 实现方法便可
-(void)viewTapped:(UITapGestureRecognizer*)tap1
{

[self.view endEditing:YES];

}