我正在使用下面的代码来测试问题。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController *controller = [[UIViewController alloc] init];
controller.view.backgroundColor = [UIColor whiteColor];
[window setRootViewController:controller];
UIViewController *controller2 = [[UIViewController alloc] init];
[controller.view addSubview:controller2.view];
controller2.view.backgroundColor = [UIColor yellowColor];
UIViewController *controller3 = [[UIViewController alloc] init];
controller3.view.backgroundColor = [UIColor purpleColor];
[controller2.view addSubview:controller3.view];
[window makeKeyAndVisible];
return YES;
}
当我在模拟器或iphone上运行它们时,会出现这个
图像
我很困惑,因为这个问题发生在我的项目中,但是当我使用系统的照片选择器时,它会显示正确。所以,谁能帮帮我,非常感谢。