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");
}
