ios中上下左右滑动的各种手势
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// 定义手势
UISwipeGestureRecognizer *recognizer;
recognizer = [[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
[recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
[[selfview] addGestureRecognizer:recognizer];
[recognizer release];
recognizer = [[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
[recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
[[selfview] addGestureRecognizer:recognizer];
[recognizer release];
recognizer = [[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
[recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];
[[selfview] addGestureRecognizer:recognizer];
[recognizer release];
recognizer = [[UISwipeGestureRecognizeralloc]initWithTarget:selfaction:@selector(handleSwipeFrom:)];
[recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];
[[selfview] addGestureRecognizer:recognizer];
[recognizer release];
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