手势学习总结记录

很多内容参考网上的，记录下来主要是为了以后查找方便~~~~~

通过给视图添加手势实现收起键盘

1. - (void)viewDidLoad  
2. {  
3.     [super viewDidLoad];  
4.     UITapGestureRecognizer *tapGr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewTapped:)];  
5.     tapGr.cancelsTouchesInView = NO;  
6.     [self.view addGestureRecognizer:tapGr];  
7. }  
8. -(void)viewTapped:(UITapGestureRecognizer*)tapGr{  
9.     [activitySearchBar resignFirstResponder];  
10. }