有pushViewController的问题!!救命

时间:2010-02-17 16:01:44

标签: iphone uiviewcontroller uinavigationcontroller pushviewcontroller

tabBarController = [[UITabBarController alloc] init];   //Create a tab bar  
view1 = [[View1 alloc] init];   //Create the first view
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:view1];
navigationController1.navigationBar.tintColor =[UIColor blackColor];
view2 = [[View2 alloc] init];   //create the second view
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:view2];
navigationController2.navigationBar.tintColor =[UIColor blackColor];
tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController1, navigationController2,nil];
[window addSubview:tabBarController.view];
[window makeKeyAndVisible];

上面的代码来自我的appDelegate类(applicationDidFinishLaunching)。 View1和View2是UIViewController。这就是我最初设计我的应用程序的方式,即应用程序有两个选项卡(view1和view2)。当用户向左或向右滑动时,下面的代码实现View1中发生的事情。

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"I am in touches began  methods");

UITouch *touch = [touches anyObject];
gestureStartPoint = [touch locationInView:self.view];

}


- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {

UITouch *touch = [touches anyObject];
CGPoint currentPosition = [touch locationInView:self.view];

CGFloat deltaX = fabsf(gestureStartPoint.x - currentPosition.x);
CGFloat deltaY = fabsf(gestureStartPoint.y - currentPosition.y);

if (deltaX >= kMinimumGestureLength && deltaY <= kMaximumVariance) {
    //Set Animation Properties
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration: 1];

    if(gestureStartPoint.x > currentPosition.x){    //I am trying to move right

        ViewControllerTemplate *newView = [[ViewControllerTemplate alloc] initWithNibName:@"ViewControllerTemplate" bundle:nil];
        //Transition spin right
        [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.navigationController.view cache:NO];
        //Push OnTo NavigationController
        [self.navigationController pushViewController:newView animated:YES];        
    }
    else {  //I am trying to move left
        if([viewDelegate getCurrentViewID] > 0){    //At view 0, should not pop anymore view
            //Transition Spin left
            [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.navigationController.view cache:NO];
            [self.navigationController popViewControllerAnimated:YES];
        }
    }
    [UIView commitAnimations];
}
}

差不多,它只是说当用户向右滑动时,它会创建一个新视图(ViewControllerTemplate)和pushViewController,当用户向左滑动时,popViewController。但是,因为我改变主意,不想实现标签栏。所以我将appDelegate中的applicationDidFinishLaunching中的代码更改为以下这些,并且View1.m中touchesMoved中的pushViewController停止工作。我确信它会到达那里,但是当它的newView的pushViewController时,没有任何反应。我觉得当我取出UINavigationController时,我的视图不再适当地推入堆栈了。知道为什么,以及如何解决它

view1 = [[View1 alloc] init];
[window addSubview:View1.view];

1 个答案:

答案 0 :(得分:1)

如果有人遇到同样的问题,这就是解决方案 将我对applicationDidFinishLaunching()所拥有的内容替换为此

view1 = [[View1 alloc] initWithNibName:@"View1" bundle:nil];    //Create the first view
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:view1];
navigationController1.navigationBar.tintColor =[UIColor blackColor];
view1 = navigationController1;  
[window addSubview:view1.view];
[window makeKeyAndVisible];