我有一个UIPageViewController加载我的ViewController。
这些视图控制器上有按钮，这些按钮被PageViewControllers手势识别器覆盖。
例如，我在视图控制器的右侧有一个按钮，当您按下按钮时，PageViewController接管并更改页面。
如何使按钮接收触摸并取消PageViewController中的手势识别器？
我认为PageViewController使我的ViewController成为其视图的子视图。
我知道我可以关闭所有手势，但这不是我要的效果。
最好不要子类化PageViewController，因为苹果说这个类不应该被子类化。
这是另一种解决方案，可以在Xcode模板中的viewDidLoad模板右侧添加，在self.view.gestureRecognizers = self.pageViewController.gestureRecognizers部分之后。它避免了干扰手势识别器的内部或处理其代理的麻烦。它只是从视图中删除了点击手势识别器，仅保留了滑动手势识别器。
self.view.gestureRecognizers = self.pageViewController.gestureRecognizers;
// Find the tap gesture recognizer so we can remove it!
UIGestureRecognizer* tapRecognizer = nil;
for (UIGestureRecognizer* recognizer in self.pageViewController.gestureRecognizers) {
if ( [recognizer isKindOfClass:[UITapGestureRecognizer class]] ) {
tapRecognizer = recognizer;
break;
}
}
if ( tapRecognizer ) {
[self.view removeGestureRecognizer:tapRecognizer];
[self.pageViewController.view removeGestureRecognizer:tapRecognizer];
}
现在要切换页面，你需要滑动。点击现在仅适用于页面视图顶部的控件（这正是我想要的）。
您可以覆盖
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
shouldReceiveTouch:(UITouch *)touch
为了更好地控制 PageViewController 何时接收触摸事件，可以查看“防止手势识别器分析触摸事件”中的内容。请参考Dev API Gesture Recognizers。
在 RootViewController 中，我的解决方案如下：
在 viewDidLoad 中：
//EDITED Need to take care of all gestureRecogizers. Got a bug when only setting the delegate for Tap
for (UIGestureRecognizer *gR in self.view.gestureRecognizers) {
gR.delegate = self;
}
覆盖：
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
//Touch gestures below top bar should not make the page turn.
//EDITED Check for only Tap here instead.
if ([gestureRecognizer isKindOfClass:[UITapGestureRecognizer class]]) {
CGPoint touchPoint = [touch locationInView:self.view];
if (touchPoint.y > 40) {
return NO;
}
else if (touchPoint.x > 50 && touchPoint.x < 430) {//Let the buttons in the middle of the top bar receive the touch
return NO;
}
}
return YES;
}
别忘了将RootViewController设置为UIGestureRecognizerDelegate。
(顺便说一句，我只处于横屏模式。)
编辑 - 上面的代码转换成Swift 2：
在viewDidLoad中：
for gr in self.view.gestureRecognizers! {
gr.delegate = self
}
使页面视图控制器继承 UIGestureRecognizerDelegate，然后添加：
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldReceiveTouch touch: UITouch) -> Bool {
if let _ = gestureRecognizer as? UITapGestureRecognizer {
let touchPoint = touch .locationInView(self.view)
if (touchPoint.y > 40 ){
return false
}else{
return true
}
}
return true
}
viewControllerBeforeViewController或viewControllerAfterViewController返回nil时，我都会收到'NSInvalidArgumentException'。异常原因是：“提供的视图控制器数（0）与所需的过渡所需的数量（2）不匹配”。 - Kof_pageViewController.gestureRecognizers（滚动效果）是一个空数组，你无法处理这些识别器。 - berylliumself.view.gestureRecognizers = self.pageViewController.gestureRecognizers;
guard let recognizers = self.pageViewController.view.subviews[0].gestureRecognizers else {
print("No gesture recognizers on scrollview.")
return
}
for recognizer in recognizers {
recognizer.cancelsTouchesInView = false
}
for (UIGestureRecognizer *gR in self.view.gestureRecognizers) {
gR.delegate = self;
}
for (UIScrollView *view in _pageViewController.view.subviews) {
if ([view isKindOfClass:[UIScrollView class]]) {
view.delaysContentTouches = NO;
}
}
允许点击穿透到 UIPageViewController 内部的按钮。
在我的情况下，我想禁用UIPageControl上的轻触，并让另一个按钮接收轻触。滑动仍然有效。我尝试了很多方法，但我相信这是最简单有效的解决方案：
for (UIPageControl *view in _pageController.view.subviews) {
if ([view isKindOfClass:[UIPageControl class]]) {
view.enabled = NO;
}
}
只需在RootViewController中创建一个子视图（与新IBOutlet gesturesView相关联），并将手势分配给此新视图。此视图覆盖您希望启用手势的屏幕部分。
在viewDidLoad中更改：
self.view.gestureRecognizers = self.pageViewController.gestureRecognizers;
到：
self.gesturesView.gestureRecognizers = self.pageViewController.gestureRecognizers;
还可以使用这个（感谢帮助，关于委托的说法）：
// add UIGestureRecognizerDelegate
NSPredicate *tp = [NSPredicate predicateWithFormat:@"self isKindOfClass: %@", [UITapGestureRecognizer class]];
UITapGestureRecognizer *tgr = (UITapGestureRecognizer *)[self.pageViewController.view.gestureRecognizers filteredArrayUsingPredicate:tp][0];
tgr.delegate = self; // tap delegating
NSPredicate *pp = [NSPredicate predicateWithFormat:@"self isKindOfClass: %@", [UIPanGestureRecognizer class]];
UIPanGestureRecognizer *pgr = (UIPanGestureRecognizer *)[self.pageViewController.view.gestureRecognizers filteredArrayUsingPredicate:pp][0];
pgr.delegate = self; // pan delegating
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
CGPoint touchPoint = [touch locationInView:self.view];
if (UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation]) && touchPoint.y > 915 ) {
return NO; // if y > 915 px in portrait mode
}
if (UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation]) && touchPoint.y > 680 ) {
return NO; // if y > 680 px in landscape mode
}
return YES;
}
对我来说完美地工作了 :)
我经常创建页面视图控制器，因为我的用户会跳跃、卷曲和滑动到不同的页面视图。在创建新的页面视图控制器的例程中，我使用了上面优秀代码的稍微简化版本：
UIPageViewController *npVC = [[UIPageViewController alloc]
initWithTransitionStyle:UIPageViewControllerTransitionStylePageCurl
navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal
options: options];
...
// Find the pageView tap gesture recognizer so we can remove it!
for (UIGestureRecognizer* recognizer in npVC.gestureRecognizers) {
if ( [recognizer isKindOfClass:[UITapGestureRecognizer class]] ) {
UIGestureRecognizer* tapRecognizer = recognizer;
[npVC.view removeGestureRecognizer:tapRecognizer];
break;
}
}
现在，我的选项卡按照我的意愿工作（左右选项卡可以跳转页面，而且卷曲效果也很好）。
NSArray *viewControllers = [NSArray arrayWithObject:pageIWantToTurnTo];然后[pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:NULL];- Rich86man