当我的物体在我的屏幕上移动时,我需要触摸它。当touchesBegan打电话给我时,我需要隐藏我的对象。
这是我在UIViewController中的代码:
- (void)win {
for (NSInteger i = 1; i <= 6; i++) {
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[NSString stringWithFormat:@"rocket_%d.png", i]]];
imageView.tag = 1000;
CGSize size = imageView.image.size;
[imageView setFrame:CGRectMake(200 + (i * 60), 500, size.width, size.height)];
[self.view addSubview:imageView];
[rockets addObject:imageView];
[imageView setUserInteractionEnabled:YES];
}
[self startRockets];
}
- (void)startRockets {
CGFloat timeInterval = 1.0;
for (UIImageView *imageView in rockets) {
[UIView animateWithDuration:5.0 delay:timeInterval options:UIViewAnimationOptionAllowUserInteraction animations:^{
[imageView setFrame:CGRectMake(imageView.frame.origin.x, 0, imageView.frame.size.width, imageView.frame.size.height)];
} completion:nil];
timeInterval += 1.0;
}
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint touchLocation = [touch locationInView:self.view];
NSArray *views = [self.view subviews];
for (UIView *v in views) {
if (v.tag == 1000) {
if (CGRectContainsPoint(v.frame, touchLocation) == YES) {
[v setHidden:YES];
}
}
}
}
答案 0 :(得分:9)
也许你错过了AllowAnimatedContent。尝试更改
UIViewAnimationOptionAllowUserInteraction
到
UIViewAnimationOptionAllowUserInteraction | UIViewAnimationOptionAllowAnimatedContent
......另一种方式可能是使用UITapGestureRecognizer
:
- (void)createViews {
rockets = [[NSMutableArray alloc] init];
for (NSInteger i = 1; i <= 6; i++) {
UIView *view = [UIView new];
view.backgroundColor = [UIColor redColor];
view.frame = CGRectMake((i * 60), 100, 50, 50);
UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(rocketTouched:)];
[view addGestureRecognizer:tap];
[self.view addSubview:view];
[rockets addObject:view];
}
[NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(moveViews) userInfo:nil repeats:YES];
}
- (void)moveViews {
for (UIView * view in rockets) {
[UIView animateWithDuration:5.0 delay:0.0 options:UIViewAnimationOptionAllowUserInteraction|UIViewAnimationOptionAllowAnimatedContent animations:^{
view.frame = CGRectMake(view.frame.origin.x -10, 0, view.frame.size.width, view.frame.size.height);
} completion:nil];
}
}
- (void)rocketTouched:(UITapGestureRecognizer*)tap {
tap.view.hidden = YES;
}
答案 1 :(得分:0)
如果需要检测与对象的交集,还需要检查此项。
我已经编辑了touchesBegan方法,但它确实有用。
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint touchLocation = [touch locationInView:self.view];
for (UIImageView *imageView in rockets) {
CALayer *bbl1ObjPresentationLayer = (CALayer*)[imageView.layer presentationLayer];
if(CGRectIntersectsRect(bbl1ObjPresentationLayer.frame, CGRectMake(touchLocation.x, touchLocation.y, 1, 1))) {
NSLog(@"intersect");
//They are intersecting
}
}
}
如果你使用CALII中的UIImageView对象,这项工作是正确的。请检查此回答link