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【ObjC】 ios触屏事件的响应

作者:宝清 / 发布于2014/11/17/ 388


	//在一个函数里面（初始化等）里面添加要识别触摸事件的范围
	 infoView=[[UIView alloc] initWithFrame:CGRectMake(20, 100,220, 280)];//范围，出了这个范围就检测不到触摸了
	 infoView.backgroundColor=[UIColor blueColor];
	 infoView.alpha=0.6;
	 [self.view addSubview:infoView];
	 /******************监视手势控制*****************///有上下左右，我只用到了左右，上下注掉了。
	 UISwipeGestureRecognizer *recognizer;
	 recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];
	 [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
	 [infoView addGestureRecognizer:recognizer];
	// recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];
	// [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];
	// [self.view addGestureRecognizer:recognizer];
	// recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];
	// [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];
	// [self.view addGestureRecognizer:recognizer];
	 recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];
	 [recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
	 [infoView addGestureRecognizer:recognizer];
	
	//触摸事件 的实现函数
	//滑动事件1
	-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{
	 //如果往左滑
	 if(recognizer.direction==UISwipeGestureRecognizerDirectionLeft) {
	 NSLog(@"****************向左滑****************");
	 }
	 //如果往右滑
	 if(recognizer.direction==UISwipeGestureRecognizerDirectionRight) {
	 NSLog(@"****************向右滑****************");
	 }
	 if (recognizer.direction==UISwipeGestureRecognizerDirectionDown){
	 NSLog(@"****************向下滑****************");
	 }
	 if (recognizer.direction==UISwipeGestureRecognizerDirectionUp){
	 NSLog(@"****************向上滑****************");
	 }
	}

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