iphone 手势

jianlao888

手势代码收藏，以备不时之需！
 
 - (void)viewDidLoad {
    UISwipeGestureRecognizer *recognizer; 
    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleSwipeFrom:)]; 
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)]; 
    [[self view] addGestureRecognizer:recognizer]; 
    [recognizer release];
     recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleSwipeFrom:)]; 
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)]; 
    [[self view] addGestureRecognizer:recognizer]; 
    [recognizer release]; 
 
    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleSwipeFrom:)]; 
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];
    [[self view] addGestureRecognizer:recognizer]; 
    [recognizer release]; 
 
    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:selfaction:@selector(handleSwipeFrom:)]; 
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)]; 
    [[self view] addGestureRecognizer:recognizer]; 
    [recognizer release];
 
    [super viewDidLoad];
 }
 
-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer { 
     NSLog(@"Swipe received."); 
     if (recognizer.direction==UISwipeGestureRecognizerDirectionDown) { 
                NSLog(@"swipe down");
    //执行程序
}
if (recognizer.direction==UISwipeGestureRecognizerDirectionUp) { 
NSLog(@"swipe up");
//执行程序
}
if (recognizer.direction==UISwipeGestureRecognizerDirectionLeft) { 
NSLog(@"swipe left");
//执行程序
}
if (recognizer.direction==UISwipeGestureRecognizerDirectionRight) { 
NSLog(@"swipe right");
//执行程序
}
}