iOS 上下左右滑動手勢

-(void)viewDidLoad
{
//向右滑動
_swipeGestureRecognizer=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];
    [_swipeGestureRecognizer setDirection:UISwipeGestureRecognizerDirectionRight];
    [self.view addGestureRecognizer:_swipeGestureRecognizer];

//左  [_swipeGestureRecognizer  setDirection:UISwipeGestureRecognizerDirectionLeft];
//上  [_swipeGestureRecognizer  setDirection:UISwipeGestureRecognizerDirectionUp];
//下  [_swipeGestureRecognizer setDirection:UISwipeGestureRecognizerDirectionDown];

}

- (IBAction)handleSwipeFrom:(id)sender
{
    NSLog(@"fromRight");
    //do something ...
}