iphone - UITabBarController提供的模态viewController

Question

我有一个类是UITabBarController的子类，其中包含4个子viewControllers。我添加了类似于RedLaser，Instagram，Path，DailyBooth和其他应用程序的按钮。我的就像这里的最高示例:



此按钮调用TabBarController中的一个方法，该方法提供一个模式viewController。当关闭它时，当前选定的viewController中的NavigationControllers开始表现异常。直到您在tabBar上选择另一个选项卡，流行动画都被弄乱了，并且发生了其他小错误。然后动画就很好了，直到再次显示viewController为止。

我确定这是因为我不正确地将其关闭，但是我不确定该如何完成。

这是我在TabBarController中的代码:

-(void)showScanner {
    ZBarReaderViewController *reader = [[ZBarReaderViewController alloc] init];
    reader.readerDelegate = self;
    reader.supportedOrientationsMask = ZBarOrientationMaskAll;

    ZBarImageScanner *scanner = reader.scanner;
    [scanner setSymbology:ZBAR_I25
                   config:ZBAR_CFG_ENABLE
                       to:0];
    [scanner setSymbology:ZBAR_QRCODE
                   config:ZBAR_CFG_ENABLE
                       to:0];

    [reader setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
    [self presentModalViewController:reader
                            animated:YES];
    [reader release];
    //[self playBeep];
    }

-(void)imagePickerController:(UIImagePickerController *)picker     didFinishPickingMediaWithInfo:(NSDictionary *)info {
    id<NSFastEnumeration> results = [info objectForKey:ZBarReaderControllerResults];
    ZBarSymbol *symbol = nil;
    for (symbol in results)
        break;
    NSString *barcode = symbol.data;

    UINavigationController *searchNavController = [[self viewControllers] objectAtIndex:1];
    WLSearchViewController *searchVC = [searchNavController.viewControllers objectAtIndex:0];

    //    WLSearchViewController *searchVC = [[self viewControllers] objectAtIndex:1];
    //[searchNavController popToRootViewControllerAnimated:NO];
    [self setSelectedViewController:searchNavController];
    [self dismissModalViewControllerAnimated:YES];

    [self playBeep];

    [searchVC handleSearchForTerm:barcode];
}

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [self dismissModalViewControllerAnimated:YES];
}

Answer 1

找到了问题所在，想想我将其发布以帮助遇到此问题的任何人。

我在我的tabBarController中重写了viewDidAppear:animated:但我没有调用[super viewDidAppear:animated:]
补充说，一切都更好!