ios - UIApplicationLaunchOptionsURLKey 究竟何时被填充？

Question

自定义 URL 何时填充到 AppDelegate.m 文件的 launchOptions 中？我已经在 Safari 中加载了我的应用程序的自定义 URL，但未填充 UIApplicationLaunchOptionsURLKey。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{    

    NSLog(@"app launch options");
    NSLog([launchOptions valueForKey:UIApplicationLaunchOptionsURLKey]);
}

Answer 1

当您尝试通过以下方式打开应用程序时，UIApplicationLaunchOptionsURLKey 会被填充:

[[UIApplication sharedApplication] openURL:[NSURL URLWithString: @"yourapp://"]];

...yourapp 是 not running .

然后(BOOL)application:(UIApplication *):didFinishLaunchingWithOptions:(NSDictionary *) 将被执行并且 NSDictionary 将填充两个键值UIApplicationLaunchOptionsURLKey和UIApplicationLaunchOptionsSourceApplicationKey