ios学习之UISwipeGestureRecognizer手势识别

ios学习之UISwipeGestureRecognizer手势识别

 

本文部分转自俺是一个瓜娃！！！的博客UISwipeGestureRecognizer ---手指动作，转载过来仅是为了自己查询方便。

 

 

tap是指轻触手势。类似鼠标操作的点击。从iOS 3.2版本开始支持完善的手势api：

• tap：轻触
• long press：在一点上长按
• pinch：两个指头捏或者放的操作
• pan：手指的拖动
• swipe：手指在屏幕上很快的滑动
• rotation：手指反向操作

- (void)viewDidLoad

{

[superviewDidLoad];

infoView=[[UIViewalloc] initWithFrame:CGRectMake(20, 300, 768-400, 70)];

infoView.backgroundColor=[UIColorblueColor];

infoView.alpha=0.6;

infoView.layer.cornerRadius=6;

infoView.layer.masksToBounds=YES;

[self.view addSubview:infoView];

/******************监视手势控制*****************/

UISwipeGestureRecognizer *recognizer;

recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];

[[selfview] addGestureRecognizer:recognizer];

[recognizer release];

recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];

[[selfview] addGestureRecognizer:recognizer];

[recognizer release];

recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];

[[selfview] addGestureRecognizer:recognizer];

[recognizer release];

recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];

[recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];

[[selfview] addGestureRecognizer:recognizer];

[recognizer release];

}

/******************手势控制操作及切换特效*****************/

//滑动事件1

-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{

//如果往左滑

if(recognizer.direction==UISwipeGestureRecognizerDirectionLeft) {

//先加载数据，再加载动画特效

[self nextQuestion];

self.view.frame = CGRectMake(320, 0, 320, 480);

[UIViewbeginAnimations:@"animationID"context:nil];

[UIViewsetAnimationDuration:0.3f];

[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIViewsetAnimationRepeatAutoreverses:NO];

self.view.frame = CGRectMake(0, 0, 320, 480);

[UIViewcommitAnimations];

}

//如果往右滑

if(recognizer.direction==UISwipeGestureRecognizerDirectionRight) {

[self lastQuestion];

self.view.frame = CGRectMake(-320, 0, 320, 480);

[UIViewbeginAnimations:@"animationID"context:nil];

[UIViewsetAnimationDuration:0.3f];

[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIViewsetAnimationRepeatAutoreverses:NO];

self.view.frame = CGRectMake(0, 0, 320, 480);

[UIViewcommitAnimations];

}

}

//滑动触发事件2

-(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer {

NSLog(@"Swipe received.");

if (recognizer.direction==UISwipeGestureRecognizerDirectionDown) {

NSLog(@"swipe down");

[UIViewbeginAnimations:@"animationID"context:nil];

[UIViewsetAnimationDuration:0.7f];

[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIViewsetAnimationRepeatAutoreverses:NO];

[UIViewsetAnimationTransition:UIViewAnimationTransitionCurlDownforView:self.viewcache:YES];

[infoViewremoveFromSuperview];

[self.view addSubview:infoView];

[UIViewcommitAnimations];

}

if (recognizer.direction==UISwipeGestureRecognizerDirectionUp) {

NSLog(@"swipe up");

[UIViewbeginAnimations:@"animationID"context:nil];

[UIViewsetAnimationDuration:0.7f];

[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIViewsetAnimationRepeatAutoreverses:NO];

[UIViewsetAnimationTransition:UIViewAnimationTransitionCurlUpforView:self.viewcache:YES];

[infoViewremoveFromSuperview];

[self.view addSubview:infoView];

[UIViewcommitAnimations];

}

}

//点击出发事件

-(void)handleTapFrom:(UITapGestureRecognizer *)recognizer{

NSLog(@">>>tap it");

}