我刚刚使用教程/示例代码在我的应用程序中设置了 WCConnectivity,我觉得我已经正确实现了它。我没有使用模拟器进行测试。出于某种原因,在手表应用程序中没有调用 didReceiveApplicationContext,即使一切设置正确。
我尝试调用 WatchKit 应用程序的接口控制器,在 ExtensionDelegate 中并使用 NSUserDefaults 来设置接口控制器数据。
iOS 应用
视图控制器.m
- (void) viewDidLoad{
if ([WCSession isSupported]) {
WCSession *session = [WCSession defaultSession];
session.delegate = self;
[session activateSession];
}
}
-(void) saveTrip{
NSMutableArray *currentTrips = [NSMutableArray arrayWithArray:[self.sharedDefaults objectForKey:@"UserLocations"]];
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:newLocation];
[currentTrips addObject:data];
[self.sharedDefaults setObject:currentTrips forKey:@"UserLocations"];
[self.sharedDefaults synchronize];
WCSession *session = [WCSession defaultSession];
NSDictionary *applicationDict = [[NSDictionary alloc] initWithObjects:@[currentTrips] forKeys:@[@"UserLocations"]];;
[session updateApplicationContext:applicationDict error:nil];
}
观看分机代码
ExtensionDelegate.m
- (void)applicationDidFinishLaunching {
if ([WCSession isSupported]) {
WCSession *session = [WCSession defaultSession];
session.delegate = self;
[session activateSession];
}
}
- (void)session:(nonnull WCSession *)session didReceiveApplicationContext:(nonnull NSDictionary<NSString *,id> *)applicationContext {
self.places= [applicationContext objectForKey:@"UserLocations"];
[[NSUserDefaults standardUserDefaults] setObject:self.places forKey:@"UserLocations"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
接口控制器.m
- (void)willActivate {
[super willActivate];
self.placesData = [NSMutableArray arrayWithArray:[[NSUserDefaults standardUserDefaults] objectForKey:@"UserLocations"]];
[self loadData];
}