presentModalViewController：不返回
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我发生了一件很奇怪的事情。在我的应用程序委托中，我正在UITabBarController上调用presentModalViewController：来显示自定义类（LoadingViewController），该类实现了loadView来显示图像。当我在模拟器中针对iOS 4.x设备（iPhone或iPad）进行测试时，它在所有方向上均正常运行。但是，当我在3.2 iPad上进行测试时，如果方向是纵向，则只能正常工作。如果是风景，则不会返回presentModalViewController：方法。调用loadView和viewDidLoad方法，但不调用viewWillAppear：和viewDidAppear：方法。
有任何想法吗？
这是LoadingViewController中loadView的代码：
- (void) loadView
{
CGRect mainScreenBounds = [UIScreen mainScreen].bounds;
UIImageView * loadingImageView = [[UIImageView alloc] initWithFrame: mainScreenBounds];
loadingImageView.autoresizesSubviews = YES;
loadingImageView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
NSString * splashImageName = [self getSplashImageName: [UIDevice currentDevice].orientation];
loadingImageView.image = [UIImage imageNamed: splashImageName];
UIActivityIndicatorView * spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle: UIActivityIndicatorViewStyleWhiteLarge];
CGRect spinnerFrame = spinner.frame;
spinnerFrame.origin.x = (mainScreenBounds.size.width - spinnerFrame.size.width) / 2;
spinnerFrame.origin.y = mainScreenBounds.size.height * 0.7f;
spinner.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin
| UIViewAutoresizingFlexibleRightMargin
| UIViewAutoresizingFlexibleTopMargin
| UIViewAutoresizingFlexibleBottomMargin;
spinner.frame = spinnerFrame;
spinner.hidesWhenStopped = YES;
[spinner startAnimating];
[loadingImageView addSubview: spinner];
// Add a label indicating we are working so the user knows what we are doing.
UIColor * textColor = [UIColor blueColor];
CGRect labelFrame = loadingImageView.frame;
labelFrame.size.height = 40;
labelFrame.origin.y = spinnerFrame.origin.y - 100;
UILabel * workingLabel = [[UILabel alloc] initWithFrame: labelFrame];
workingLabel.font = [UIFont systemFontOfSize: 18.0];
workingLabel.textColor = textColor;
workingLabel.backgroundColor = [UIColor clearColor];
workingLabel.textAlignment = UITextAlignmentCenter;
workingLabel.text = NSLocalizedString(@\"Searching for location...\", @\"Searching for location...\");
workingLabel.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin
| UIViewAutoresizingFlexibleRightMargin
| UIViewAutoresizingFlexibleTopMargin
| UIViewAutoresizingFlexibleBottomMargin
| UIViewAutoresizingFlexibleWidth
| UIViewAutoresizingFlexibleHeight;
[loadingImageView addSubview: workingLabel];
[workingLabel release];
[spinner release];
self.view = loadingImageView;
[loadingImageView release];
}
没有找到相关结果
已邀请:
2 个回复
课刊灭似
时应为RootViewController。IOS 3.2还存在一个问题，即在UITabBarController中将landscape2ѭ用在UITabBarController中时，如果所有视图控制器都不重写并返回yes，则将导致挂起。卧沫