iOS點擊空白處或點擊背景收起鍵盤

在viewDidLoad中添加手勢

- (void)viewDidLoad{

[super viewDidLoad];

//添加手勢

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

}

 

然後 實現方法即可
-(void)viewTapped:(UITapGestureRecognizer*)tap1
{

[self.view endEditing:YES];

}