UITabBarController旋转问题与popViewControllerAnimated和selectedIndex（iPhone SDK）

这是一个非常重要的自动旋转问题，并容易重现。UITabBarController旋转问题与popViewControllerAnimated和selectedIndex（iPhone SDK）

我的应用程序有一个的UITabBarController。每个选项卡是一个UINavigationController。自动旋转与正常调用shouldAutorotateToInterfaceOrientation和didRotateFromInterfaceOrientation处理。

界面正常旋转，直到我调用UIViewController.popViewControllerAnimated并更改UITabBarController.selectedIndex。

重现步骤：

创建演示标签栏的应用。

下面的代码添加到应用程序委托.h文件中：

#import <UIKit/UIKit.h>
 
@interface TestRotationAppDelegate : NSObject { 
    UIWindow *window; 
    UITabBarController *tabBarController; 
}
 
@property (nonatomic, retain) IBOutlet UIWindow *window; 
@property (nonatomic, retain) IBOutlet UITabBarController *tabBarController;
 
@end
 
// Redefine the interface to cach rotation messages 
@interface UITabBarController (TestRotation1AppDelegate)
 
@end

下面的代码添加到应用程序委托.m文件：

#import "TestRotationAppDelegate.h"
 
@implementation TestRotationAppDelegate 
@synthesize window; 
@synthesize tabBarController;
 
-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 
    [window addSubview:tabBarController.view]; 
    [window makeKeyAndVisible]; 
    return YES; 
}
 
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
    return YES; 
}
 
-(void)dealloc { 
    [tabBarController release]; 
    [window release]; 
    [super dealloc]; 
}
 
@end
 
@implementation UITabBarController (TestRotation1AppDelegate)
 
-(void)viewDidLoad { 
    [super viewDidLoad]; 
    // Add a third tab and push a view 
    UIViewController *view1 = [[[UIViewController alloc] init] autorelease]; 
    view1.title = @"Third"; 
    UINavigationController *nav = [[[UINavigationController alloc] initWithRootViewController:view1] autorelease]; 
    NSMutableArray *array = [[NSMutableArray alloc] init]; 
    [array addObjectsFromArray:self.viewControllers]; 
    [array addObject:nav]; 
    self.viewControllers = array; 
    // Push view2 inside the third tab 
    UIViewController *view2 = [[[UIViewController alloc] init] autorelease]; 
    [nav pushViewController:view2 animated:YES]; 
    // Create a button to pop view2 
    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    button.frame = CGRectMake(50, 50, 220, 38); 
    [button setTitle:@"Pop this view" forState:UIControlStateNormal]; 
    [button addTarget:self action:@selector(doAction) forControlEvents:UIControlEventTouchUpInside]; 
    [view2.view addSubview:button]; 
}
 
-(void) doAction { 
    // ROTATION PROBLEM BEGINS HERE 
    // Remove one line of code and the problem doesn't occur. 
    [self.selectedViewController popViewControllerAnimated:YES]; 
    self.selectedIndex = 0; 
}
 
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
    return YES; 
}
 
@end

接口自动正常，直到你点击选项卡上的按钮旋转＃3。

你的帮助将geatly感激！

来源

2010-04-23 rjobidon

iPhone SDK 3.2解决了这个问题。

与以前的SDK使用[self.selectedViewController popViewControllerAnimated：NO]。

来源

2010-08-30 03:09:15 rjobidon

UITabBarController旋转问题与popViewControllerAnimated和selectedIndex（iPhone SDK）

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