iphone sdk通过点击ipad外部的模式viewcontrollers

我迟到了一年,但这很简单。

让模态视图控制器将手势识别器连接到视图的窗口:

UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapBehind:)];

[recognizer setNumberOfTapsRequired:1];
recognizer.cancelsTouchesInView = NO; //So the user can still interact with controls in the modal view
[self.view.window addGestureRecognizer:recognizer];
[recognizer release];

处理代码:

- (void)handleTapBehind:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateEnded)
     {
       CGPoint location = [sender locationInView:nil]; //Passing nil gives us coordinates in the window

 //Then we convert the tap's location into the local view's coordinate system, and test to see if it's in or outside. If outside, dismiss the view.

        if (![self.view pointInside:[self.view convertPoint:location fromView:self.view.window] withEvent:nil]) 
        {
           // Remove the recognizer first so it's view.window is valid.
          [self.view.window removeGestureRecognizer:sender];
          [self dismissModalViewControllerAnimated:YES];
        }
     }
}

就这样。他妈的,这是一个有用的和经常直觉的行为。

如果其他应用程序允许通过单击其外部来取消视图,则它们不使用模式视图。 UIModalPresentationFormSheets 不能这样被解雇。(事实上,sdk3.2中的任何uimodal都不能)。只有 UIPopoverController 可以通过单击区域外的来解除。应用程序开发人员很有可能(尽管与苹果的ipad hig相比)将背景屏幕遮住,然后显示 弹出控制器 所以看起来像 uimodalPresentationFormsheets表格 (或其他uimodal视图)。

[…]uimodalPresentationCurrentContext样式允许视图控制器采用其父级的表示样式。在每个模式视图中,暗显区域显示底层内容,但不允许在该内容中轻敲。因此,与popover不同,模态视图必须仍然具有允许用户关闭模态视图的控件。

有关详细信息,请参阅开发人员网站上的ipadprogrammingguide(第46页-“为模式视图配置表示样式”)

对于ios 8,必须同时实现 UIGestureRecognizer ,并在横向方向上交换点击位置的(x,y)坐标。不确定这是否是由于ios 8错误造成的。

- (void) viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    // add gesture recognizer to window

    UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapBehind:)];
    [recognizer setNumberOfTapsRequired:1];
    recognizer.cancelsTouchesInView = NO; //So the user can still interact with controls in the modal view
    [self.view.window addGestureRecognizer:recognizer];
    recognizer.delegate = self;
}

- (void)handleTapBehind:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateEnded) {

        // passing nil gives us coordinates in the window
        CGPoint location = [sender locationInView:nil];

        // swap (x,y) on iOS 8 in landscape
        if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0")) {
            if (UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
                location = CGPointMake(location.y, location.x);
            }
        }

        // convert the tap's location into the local view's coordinate system, and test to see if it's in or outside. If outside, dismiss the view.
        if (![self.view pointInside:[self.view convertPoint:location fromView:self.view.window] withEvent:nil]) {

            // remove the recognizer first so it's view.window is valid
            [self.view.window removeGestureRecognizer:sender];
            [self dismissViewControllerAnimated:YES completion:nil];
        }
    }
}


#pragma mark - UIGestureRecognizer Delegate

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
    return YES;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    return YES;
}

上面的代码工作得很好,但是我会将if语句改为,

    if (!([self.view pointInside:[self.view convertPoint:location fromView:self.view.window] withEvent:nil] || [self.navigationController.view pointInside:[self.navigationController.view convertPoint:location fromView:self.navigationController.view.window] withEvent:nil]))

    {
        // Remove the recognizer first so it's view.window is valid.
        [self.view.window removeGestureRecognizer:sender];
        [self dismissModalViewControllerAnimated:YES];
    }

这样可以确保您仍然可以与导航栏进行交互,否则在导航栏中单击将取消模式视图。

针对iOS 8更新的答案

显然,在iOS8中, UIDimmingView 有一个轻敲手势识别器,它会干扰初始实现,所以我们忽略它,不要求它失败。

现在是速度的时代,所以大多数人可能只是在复制上面的代码。但是,不幸的是,在代码方面,我患有强迫症。

Here is a modular solution that uses Danilo Campos's answer with categories . 它也 解决 一个重要的错误,可能会发生,如果你是通过其他方式解散你的模态, as mentioned .

注: if语句出现是因为我对iphone和ipad都使用view控制器,而且只有ipad需要注册/注销。

更新: 要点已经更新了,因为它不能正确地与可怕的 FCOverlay 代码,它不允许在显示的视图中识别手势。这些问题已经解决了。 使用类别非常简单:

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    if (self.presentingViewController) {
        [self registerForDismissOnTapOutside];
    }
}

- (void)viewWillDisappear:(BOOL)animated
{
    if (self.presentingViewController) {
        [self unregisterForDismissOnTapOutside];
    }

    [super viewWillDisappear:animated];
}

复制并将此代码粘贴到modalviewcontroller中:

- (void) viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    //Code for dissmissing this viewController by clicking outside it
    UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapBehind:)];
    [recognizer setNumberOfTapsRequired:1];
    recognizer.cancelsTouchesInView = NO; //So the user can still interact with controls in the modal view
    [self.view.window addGestureRecognizer:recognizer];

}

- (void)handleTapBehind:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateEnded)
    {
        CGPoint location = [sender locationInView:nil]; //Passing nil gives us coordinates in the window

        //Then we convert the tap's location into the local view's coordinate system, and test to see if it's in or outside. If outside, dismiss the view.

        if (![self.view pointInside:[self.view convertPoint:location fromView:self.view.window] withEvent:nil])
        {
            // Remove the recognizer first so it's view.window is valid.
            [self.view.window removeGestureRecognizer:sender];
            [self dismissModalViewControllerAnimated:YES];
        }
    }
}

Very important: 如果你有其他方法关闭你的 模式弹出窗口 ,不要忘了移除轻敲手势识别器!

我忘了这件事,后来发生了疯狂的车祸,因为窃听器仍在触发事件。

根据苹果的iOS Hig,1.模态视图本身不具备在没有任何输入的情况下被忽略的能力;在需要用户输入的情况下使用模态视图。

请改用uiPresentationcontroller:

- (void)presentationTransitionWillBegin
{
    [super presentationTransitionWillBegin];
    UITapGestureRecognizer *dismissGesture=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(dismissGestureTapped:)];
    [self.containerView addGestureRecognizer:dismissGesture];

    [[[self presentedViewController] transitionCoordinator] animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {
    } completion:nil];
}
- (void) dismissGestureTapped:(UITapGestureRecognizer *)sender{
    if (sender.state==UIGestureRecognizerStateEnded&&!CGRectContainsPoint([self frameOfPresentedViewInContainerView], [sender locationInView:sender.view])) {
        [self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
    }
}

从lookinside示例修改

这对我来说很适合ios7和导航栏。

如果不需要导航条,只需删除if语句中管道后面的location2和second条件即可。

@假装这对你也有用

- (void)handleTapBehind:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateEnded)
    {
        CGPoint location1 =  [sender locationInView:self.view];
        CGPoint location2 = [sender locationInView:self.navigationController.view];

        if (!([self.view pointInside:location1 withEvent:nil] || [self.navigationController.view pointInside:location2 withEvent:nil])) {
            [self.view.window removeGestureRecognizer:self.recognizer];
            [self dismissViewControllerAnimated:YES completion:nil];
        }
    }
}

编辑:您可能还需要是一个手势识别器代表,才能使用此解决方案和其他上述解决方案。这样做:

@interface CommentTableViewController () <UIGestureRecognizerDelegate>

将自己设置为识别器的代理:

self.recognizer.delegate = self;

并实现此委托方法:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
    return YES;
}

这是相当可行的。

看看这里

https://stackoverflow.com/a/26016458/4074557

它是一个导航控制器(模式),可以自动关闭ipad(当你点击外部时)

在其中使用viewcontroller。

希望有帮助。

我知道已经很晚了,但是可以考虑使用cleanmodel(使用ios 7和ios 8进行测试)。

https://github.com/orafaelreis/CleanModal

你可以使用 MZFormSheetController 这样地:

MZFormSheetController *formSheet = [[MZFormSheetController alloc] initWithSize:customSize viewController:presentedViewController];
formSheet.shouldDismissOnBackgroundViewTap = YES;
[presentingViewController mz_presentFormSheetController:formSheet animated:YES completionHandler:nil];

在swift 2/xcode版本7.2(7c68)中,以下代码对我有效。

注意:此代码应该放在显示的表单或页面的viewcontroller.swift文件中,这里是:“pagesheetviewcontroller.swift”

class PageSheetViewController: UIViewController, UIGestureRecognizerDelegate {

    override func viewDidAppear(animated: Bool) {
        let recognizer = UITapGestureRecognizer(target: self, action:Selector("handleTapBehind:"))
        recognizer.delegate = self
        recognizer.numberOfTapsRequired = 1
        recognizer.cancelsTouchesInView = false
        self.view.window?.addGestureRecognizer(recognizer)
    }

    func gestureRecognizer(sender: UIGestureRecognizer,
        shouldRecognizeSimultaneouslyWithGestureRecognizer:UIGestureRecognizer) -> Bool {
            return true
    }

    func handleTapBehind(sender:UIGestureRecognizer) {
        if(sender.state == UIGestureRecognizerState.Ended){
            var location:CGPoint = sender.locationInView(nil)

            // detect iOS Version 8.0 or greater
            let Device = UIDevice.currentDevice()
            let iosVersion = Double(Device.systemVersion) ?? 0
            let iOS8 = iosVersion >= 8

            if (iOS8) {
                // in landscape view you will have to swap the location coordinates
                if(UIInterfaceOrientationIsLandscape(UIApplication.sharedApplication().statusBarOrientation)){
                    location = CGPointMake(location.y, location.x);
                }
            }

            if(!self.view.pointInside(self.view.convertPoint(location, fromView: self.view.window), withEvent: nil)){
                self.view.window?.removeGestureRecognizer(sender)
                self.dismissViewControllerAnimated(true, completion: nil)
            }
        }
    }
}