我试图使用以下代码从手表模拟器启动我的iPhone应用程序：
WKInterfaceController子类
[WKInterfaceController openParentApplication:[NSDictionary dictionaryWithObject:@"red" forKey:@"color"] reply:^(NSDictionary *replyInfo,NSError *error) {
NSLog(@"replyInfo %@",replyInfo);
NSLog(@"Error: %@",error);
}];
AppDelegate.m
- (void)application:(UIApplication *)application handleWatchKitExtensionRequest:(NSDictionary *)userInfo reply:(void(^)(NSDictionary *replyInfo))reply
{
NSLog(@"appdelegate handleWatchKitExtensionRequest");
NSLog(@"NSDictionary: %@",userInfo);
NSLog(@"replyInfo: %@",replyInfo);
}
我得到的错误是：
Error: Error Domain=com.apple.watchkit.errors Code=2 “The
UIApplicationDelegate in the iPhone App never called reply() in
-[UIApplicationDelegate application:handleWatchKitExtensionRequest:reply:]”
UserInfo=0x7f8603227730 {NSLocalizedDescription=The
UIApplicationDelegate in the iPhone App never called reply() in
-[UIApplicationDelegate application:handleWatchKitExtensionRequest:reply:]}
解决方法
您需要调用回复块,即使您返回零.以下将解决您的错误：
- (void)application:(UIApplication *)application handleWatchKitExtensionRequest:(NSDictionary *)userInfo reply:(void(^)(NSDictionary *replyInfo))reply
{
NSLog(@"appdelegate handleWatchKitExtensionRequest");
NSLog(@"NSDictionary: %@",replyInfo);
reply(nil);
}
详见the Apple documentation.你也可以返回一个NSDictionary回复(myNSDictionary);无论什么信息,返回到您的Watchkit扩展将是有用的,虽然字典只能包含可以序列化属性列表文件的信息,所以例如你可以传递字符串,但你不能只传递包含引用的字典您的自定义类的实例,而不是首先将其打包成NSData.
