在启动时候有三个视图,想要实现的是可以根据设备类型来选择三个中的一个。目前我写的代码在AppDelegate.m
中
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// 应用启动后重写制定
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 568.0) {
self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_Portrait5" bundle:nil];
}
else if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 480.0) {
self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_Portrait4" bundle:nil];
}
else {
self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_PortraitPad" bundle:nil];
}
}
但是运行之后,应用启动的时候屏幕一片漆黑。
怎么解决,谢谢。