iPhone - 显示动态启动画面

Question

我正在创建一个具有选择主题选项的应用程序。根据所选的主题，我还想更改启动屏幕。如果我不使用“Default.png”并使用图像视图或类似的方式来显示启动画面图像，则最终会在加载过程中显示黑色视图。

如何根据所选主题显示动态启动画面。是否可以？

Answer 1

检查下面的SO帖子

3.0中的动态(Default.png)闪屏[iPhone SDK]

这是博客文章

动态iPhone 或 iPad 应用程序的启动画面

动态启动画面

Answer 2

.h 类中编码来添加启动屏幕

此代码可以帮助您通过在.m

UIImageView *myImgView;


//---------methods to show and hide splash----------
-(void)ShowSplash;
-(void)hideSplash;

类中的

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    [self ShowSplash];
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
    [self.window makeKeyAndVisible];
    return YES;
}

-(void)ShowSplash
{
     myImgView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];
     myImgView.backgroundColor=[UIColor colorWithRed:0 green:.3 blue:0.5 alpha:1];
     myImgView.image=[UIImage imageNamed:@"splashscreen.png"];
     [self.window addSubview:myImgView];
     [self performSelector:@selector(hideSplash) withObject:nil afterDelay:1];
}

-(void)hideSplash
{   
    [UIView beginAnimations:@"flipping view" context:nil];
    [UIView setAnimationDuration:1.5];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
    [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp   forView:myImgView.superview cache:YES];
    [myImgView removeFromSuperview];
    [UIView commitAnimations];
    [myImgView release];
    myImgView=nil;
    self.window.rootViewController = self.viewController;
}