尽可能简单地说,我已经分配给UITapGestureRecognizer
的{{1}}将不可避免地并且莫名其妙地停止触发它所针对的方法。
它甚至更奇怪,因为有时它只会在一次敲击后停止识别手势,而其他时间则需要数十次敲击才能识别。但是,每次都没有失败,它将不可避免地停止。
我尝试将点击手势设置为强关联属性,但这没有效果。
我最近尝试过的(没有成功)是,在手势的选择器方法运行之后,我删除了手势,然后重新分配并重新初始化了一个新的UIImageView
并且没有影响。这让我相信问题就在于UITapGestureRecognizer
而不是UIImageView
- 但据说,我不知道。
但是,我正在通过一些UITapGuestureRecognizer
动画制作UIImageView
,所以也许还有什么可以做的呢?
此外,UIView
已启用用户互动,我从不停用它。
有什么建议吗?如果有帮助,我很乐意发布代码。这是一些代码:
设置UIImageView(图像视图和点按手势都已成为属性,以便我可以强烈关联它们):
UIImageView
动画:
self.cardImageView = [[UIImageView alloc] initWithFrame:frame];
[self.cardImageView setContentMode:UIViewContentModeScaleAspectFill];
[self.cardImageView setClipsToBounds:TRUE];
[self.cardImageView setBackgroundColor:[UIColor nearBlack]];
[self.cardImageView.layer setBorderColor:[[UIColor fiftyGray]CGColor]];
[self.cardImageView.layer setBorderWidth:1.0];
[self.cardImageView setUserInteractionEnabled:TRUE];
self.imageFullScreenTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapImageView)];
[self.cardImageView addGestureRecognizer:self.imageFullScreenTap];
[view addSubview:self.cardImageView];
答案 0 :(得分:1)
[UIView transitionWithView:self.cardImageView
duration:0.2f
options:UIViewAnimationOptionAllowUserInteraction |
UIViewAnimationOptionLayoutSubviews
animations:^(void) {
[self.cardImageView setFrame:[self frameForImageView]];
[page setAlpha:!fullscreenTemplate];
[saveExitButton setAlpha:!fullscreenTemplate];
[optionsButton setAlpha:!fullscreenTemplate];
if(fullscreenTemplate) {
[self.cardImageView.layer setBorderColor:[UIColor clearColor].CGColor];
[self.view setBackgroundColor:[UIColor blackColor]];
} else {
[self.cardImageView.layer setBorderColor:[UIColor fiftyGray].CGColor];
[self.view setBackgroundColor:[UIColor clearColor]];
}
} completion:^(BOOL finished) {
[scroller setScrollEnabled:!fullscreenTemplate];
}];
上面的代码已使用animateWithDuration:completion:
方法更改了transitionWithView:duration:options:animations:completion:
方法。
Importent keyWord这里是UIViewAnimationOptionAllowUserInteraction
。这将允许在图像动画时进行userInteraction。
如果TapGesture在一段时间后仍然无法识别,请向我显示tapImageView
方法的代码。
答案 1 :(得分:0)
使用UIViewAnimationOptionAllowUserInteraction
和bringSubviewToFront
[view addSubview:self.cardImageView];
[view bringSubviewToFront:self.cardImageView];
动画:
[UIView animateWithDuration:0.2
delay:0.0
options:UIViewAnimationOptionAllowUserInteraction
animations:^
{
[self.cardImageView setFrame:[self frameForImageView]];
[page setAlpha:!fullscreenTemplate];
[saveExitButton setAlpha:!fullscreenTemplate];
[optionsButton setAlpha:!fullscreenTemplate];
if(fullscreenTemplate)
{
[self.cardImageView.layer setBorderColor:[UIColor clearColor].CGColor];
[self.view setBackgroundColor:[UIColor blackColor]];
}
else
{
[self.cardImageView.layer setBorderColor:[UIColor fiftyGray].CGColor];
[self.view setBackgroundColor:[UIColor clearColor]];
}
}
completion:^(BOOL finished)
{
[scroller setScrollEnabled:!fullscreenTemplate];
if (self.imageFullScreenTap)
{
[self.cardImageView removeGestureRecognizer:self.imageFullScreenTap];
self.imageFullScreenTap = nil;
}
self.imageFullScreenTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapImageView)];
[self.cardImageView addGestureRecognizer:self.imageFullScreenTap];
}];
答案 2 :(得分:0)
如果您在某个时候将imageview添加到uiscrollview,那么我担心手势识别器大多数时候都不会工作。或者您尝试在父视图上启用userinteraction。