iPhone - 从 UIWindow 启动 UIImagePickerController

Question

我如何从- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 的主 UIWindow（未定义视图）启动UIImagePickerController，在主窗口没有内置导航控制器进入 IB 的项目中（并且无需添加一进IB）？

Answer 1

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

例子：

- (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;
}

Answer 2

self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];    
[window addSubview:imagePickerController.view];

这应该可以完成你想要的。