当我的应用启动时,我正在加载启动画面。然后我想加载一个TabBarController和它的ViewControllers。但是,我的TabBarController窗口不会缩放到屏幕大小。
底部TabBar的3/4可能会被切断,状态栏下方屏幕顶部有一个细长的20像素间隙。如何正确调整TabBarController的大小?
这是加载启动视图的SplashViewController中的代码,以及TabBarController:
-(void)loadView{
// Init the view
CGRect appFrame = [[UIScreen mainScreen] applicationFrame];
UIView *view = [[UIView alloc] initWithFrame:appFrame];
view.autoresizingMask = UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth;
self.view = view;
[view release];
splashImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Splash.png"]];
splashImageView.frame = CGRectMake(0,0,320,458);
[self.view addSubview:splashImageView];
viewController = [[FlashCardViewController alloc] initWithNibName:@"FlashCardViewController" bundle:[NSBundle mainBundle]];
//viewController.view.bounds = [[UIScreen mainScreen]bounds];
viewController.title = @"Quiz";
viewController.tabBarItem.image = [UIImage imageNamed:@"puzzle.png"];
UIViewController *viewController2 = [[UIViewController alloc] initWithNibName:nil bundle:nil];
viewController2.title = @"Nada";
viewController2.tabBarItem.image = [UIImage imageNamed:@"magnifying-glass.png"];
//viewController.view.alpha = 0.0;
//[self.view addSubview:viewController.view];
tabBarController = [[UITabBarController alloc] init];
tabBarController.viewControllers = [NSArray arrayWithObjects:viewController, viewController2, nil];
[viewController2 release];
tabBarController.view.alpha = 0.0;
//tabBarController.tabBarItem.image = [UIImage imageNamed:@"State_California.png"];
//tabBarController.tabBarItem.title = @"State_California.png";
tabBarController.view.bounds = [[self view] bounds];
//tabBarController.view.frame = [[UIScreen mainScreen] applicationFrame];
[self.view addSubview:tabBarController.view];
timer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(fadeScreen) userInfo:nil repeats:NO];
}
-(void) fadeScreen
{
[UIView beginAnimations:nil context:nil]; // begin animation block
[UIView setAnimationDuration:0.75]; // sets animation duration
[UIView setAnimationDelegate:self]; // sets the delegate for this block
[UIView setAnimationDidStopSelector:@selector(finishedFading)]; // Calls finishFading
self.view.alpha = 0.0; // // Fades the alpha to 0 over animation
[UIView commitAnimations]; // Commits this block, done
}
-(void) finishedFading
{
[UIView beginAnimations:nil context:nil]; // Begin animation block
[UIView setAnimationDuration:0.75]; // set duration
self.view.alpha = 1.0; // fades the view to 1.0 alpha over .75 seconds
//viewController.view.alpha = 1.0;
tabBarController.view.alpha = 1.0;
[UIView commitAnimations];
[splashImageView removeFromSuperview];
}
答案 0 :(得分:12)
我刚刚完成了相同的问题并遇到了同样的问题,但最终让它运转了。
在Xcode中创建一个名为Test1ViewController
的View Controller类,并添加以下内容:
@interface Test1ViewController : UIViewController {
IBOutlet UITabBarController *tbc;
}
@property (nonatomic,retain) IBOutlet UITabBarController *tbc;
@end
创建名为Test1View
将TabBarViewController
添加到XIB
将XIB中的文件所有者设置为Test1ViewController
。
将文件所有者中的tbc
IBOutlet连接到XIB中的标签栏控制器。
将文件所有者中的view
IBOutlet连接到XIB中的视图。
在您的SplashViewController.h中添加属性
Test1ViewController *tabBarViewController;
合成tabBarViewController
中的SplashViewController.m
。
使用以下内容替换TabBarController
loadView
方法中的SplashViewController
创建代码:
tabBarViewController = [[Test1ViewController alloc] initWithNibName:
@"Test1View" bundle:[NSBundle mainBundle]];
tabBarViewController.view.alpha = 0.0;
[self.view addSubview:[tabBarViewController view]];
这是我失踪的一点。在Test1ViewController.m
中,您需要将以下行添加到viewDidLoad
方法:
self.view = tbc.view;
最后,我还必须更改finishedFading
中的SplashViewController.m
方法,将tabBarViewController
视图上的alpha设置为1.0。
-(void) finishedFading
{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];
self.view.alpha = 1.0;
tabBarViewController.view.alpha = 1.0;
[UIView commitAnimations];
[splashImageView removeFromSuperview];
}
我希望这会有所帮助。
答案 1 :(得分:5)
我终于找到了有效的方法。而不是:
tabBarController.view.frame = [[UIScreen mainScreen] applicationFrame];
或
tabBarController.view.bounds = [[self view] bounds];
因为我无法找到此大小的自动或命名设置,所以我必须创建自己的矩形,该大小是屏幕大小减去statusBar。
tabBarController.view.frame = CGRectMake(0,0,320,460);