iOS－响应上下左右滑动手势

2019独角兽企业重金招聘Python工程师标准>>>

-(void)viewDidLoad{UISwipeGestureRecognizer *recognizer; recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];[recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];[[self view] addGestureRecognizer:recognizer];
[recognizer release];recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];[recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];[[self view] addGestureRecognizer:recognizer];
[recognizer release];recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];[recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];[[self view] addGestureRecognizer:recognizer];
[recognizer release];UISwipeGestureRecognizer *recognizer;recognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeFrom:)];[recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];[[self view] addGestureRecognizer:recognizer];
[recognizer release];}-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{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
}}

转载于:https://my.oschina.net/wenchengxu123/blog/734571

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