Question

我遇到了问题，无法知道原因或解决方案我有AddDelegate和另一个ViewController，在这个ViewController中我添加了FBFriendPickerViewController，而ViewController将被添加到AppDelegate ..

我将ViewController添加到AppDelegate，如下所示:(此ViewController是SocialSharing类）

if( socialSharing == nil )
    socialSharing = [[SocialSharing alloc] init];

[_window.rootViewController.view addSubview:socialSharing.view];

在ViewController（SocialSharing）中添加FBFriendPickerViewController，如下所示：

-(void)shareOnFaceBook:(NSNotification *) notification
{
    if( shareOnUserOrFriendWallBtnIndex == 0 )
    {

    if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {

        SLComposeViewController *facebookSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

        NSURL *candidateURL = [NSURL URLWithString:contentDataToShare];

        if (candidateURL && candidateURL.scheme && candidateURL.host) {
            [facebookSheet setInitialText:@"See this link .."];
            [facebookSheet addURL:candidateURL];
        }
        else // Event ***
        {
            [facebookSheet setInitialText:[NSString stringWithFormat:@"%@%@%@",[[appDelegate.extrasOverlayView.markerData.btnsArr objectAtIndex:0] objectForKey:@"markerName"],@" .. \n", contentDataToShare]];
            [facebookSheet addURL:[NSURL URLWithString:lastVideoLink]];
        }

        //Brings up the little share card with the test we have pre defind.
        [appDelegate.window.rootViewController presentViewController:facebookSheet animated:YES completion:nil];

    } else {
        //This alreat tells the user that they can't use built in socal interegration and why they can't.
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Sorry" message:@"You can't send a tweet right now, make sure you have at least one Facebook account setup and your device is using iOS." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
    }

}
else if( shareOnUserOrFriendWallBtnIndex == 1 )// post on friend's wall
{
    if ( [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fb://"]] )
    {
        NSLog(@"Facebook is inastalled on this device.");
        if( friendPickerController == nil )
        {
            friendPickerController = [[FBFriendPickerViewController alloc] init];
            friendPickerController.delegate = self;

            if( !( [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone ) )
                friendPickerController.title = @"Select Friends";
        }

        [friendPickerController loadData];


        // Present view controller modally
        [self presentViewController:friendPickerController animated:YES completion:nil];

    }
    else{
        NSLog(@"This device has no Facebook app.");
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Sorry" message:@"You can't invite friends, Facebook app isn't installed, please install it and retry again." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
    }

}

}

并从SocialSharing中解除friendPickerController，如：

- (void)facebookViewControllerCancelWasPressed:(id)sender
{
    NSLog(@"Friend selection cancelled.");
    [self dismissViewControllerAnimated:YES completion:nil];
}

我用过：

[friendPickerController dismissModalViewControllerAnimated:YES];
   OR //[self.view.window.rootViewController dismissViewControllerAnimated:YES completion:Nil];
OR //[self dismissModalViewControllerAnimated:YES];

它只适用于第一次，一旦，friendPickerController出现并在关闭时关闭，但是当再次调用打开时，我有这个错误：

＆＃34;线程1：信号SIGBRT＆＃34;

对于以下行：

[self presentViewController:friendPickerController animated:YES completion:nil];

注意：当我在AppDelegate上直接添加friendPickerController（在AppDelegate的类中）而没有另一个类（这里是SocialSharing ViewController）时，它的效果很好..

我正在开发IOS 7和Facebook SDK 3.13 .. 那么，问题是什么，我该如何解决？

谢谢

Answer 1

我做了什么来解决我的问题，我在NORMAL CLASS中创建了friendPickerController，而不是ViewController，并在AppDelegate上添加它

     [appDelegate.window.rootViewController presentViewController:friendPickerController animated:YES completion:nil];

并解雇：

    [appDelegate.window.rootViewController dismissViewControllerAnimated:YES completion:nil];

并将此类称为：

if( socialSharing == nil )
{
    socialSharing = [[SocialSharingClass alloc] init];
    [socialSharing initSocialSharing];
}

尽管如此，我还不知道这个问题，但这解决了它。可以帮助任何人。

错误presentViewController - 视图控制器添加 - 目标c

1 个答案: