iPhone - 从 UIWindow 启动 UIImagePickerController

Question

我如何启动 UIImagePickerController来自 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 的主 UIWindow(未定义 View ) ，在主窗口没有内置导航 Controller 进入 IB 的项目上(并且无需向 IB 添加导航 Controller )？

Answer 1

如果您不需要 UINavigationController，那么只需将常规 UIViewController 作为主窗口的 Root View 即可。并从中呈现 UIImagePickerController。

示例:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window.rootViewController = [[[UIViewController alloc] init] autorelease];
    UIImagePickerController *imagePickerController = [[[UIImagePickerController alloc] init] autorelease];
    [self.window.rootViewController presentModalViewController:imagePickerController animated:YES];
    [self.window makeKeyAndVisible];
    return YES;
}