我們經(jīng)常會遇到這樣的需求，點(diǎn)擊空白收回鍵盤或者空白收回 鍵盤或者view，

controller中又會有其他的cell，collectionview 等等，這里可以用到手勢的touch 傳遞鏈

- (void)viewDidLoad

{

[super viewDidLoad];

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(keyboardHide:)];

//設(shè)置成NO表示當(dāng)前控件響應(yīng)后會傳播到其他控件上，默認(rèn)為YES。

tapGestureRecognizer.cancelsTouchesInView = NO;

//將觸摸事件添加到當(dāng)前view

[self.view addGestureRecognizer:tapGestureRecognizer];

}

-(void)keyboardHide:(UITapGestureRecognizer*)tap{

[textFiled resignFirstResponder];

}