Jawbone在后台刷新时没有被拉动

Question

我一直在使用https://github.com/Jawbone/UPPlatform_iOS_SDK一段时间了 并获得用户的日常步骤。

当应用处于后台状态时，我想从Jawbone API中提取数据。 我已经按照本教程进行了操作：http://www.devfright.com/ios-7-background-app-refresh-tutorial/ 要调用此方法：

[UPMoveAPI getMovesWithLimit:10U completion:^(NSArray *moves, UPURLResponse *response, NSError *error) {
    NSLog(@"This is not getting executed in background");
}];

颚骨会话已成功验证，似乎我的会话处于活动状态。 但我没有得到任何回应，上面的NSLog也没有在后台执行。 我已经尝试过联系Jawbone支持，似乎他们没有回复。

任何有相同经验的人，请帮忙。

Answer 1

尝试以下代码选项：

选项-1

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
   [UPMoveAPI getMovesWithLimit:10U completion:^(NSArray *moves, UPURLResponse *response, NSError *error) {
       NSLog(@"This is not getting executed in background");
   }];
}

选项-2 https://developer.apple.com/library/ios/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/BackgroundExecution/BackgroundExecution.html

bgTask = [application beginBackgroundTaskWithName:@"MyTask" expirationHandler:^{
        // Clean up any unfinished task business by marking where you
        // stopped or ending the task outright.
        [application endBackgroundTask:bgTask];
        bgTask = UIBackgroundTaskInvalid;
    }];

    // Start the long-running task and return immediately.
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        // Do the work associated with the task, preferably in chunks.

        [application endBackgroundTask:bgTask];
        bgTask = UIBackgroundTaskInvalid;
    });

另请注意，您需要在info.plist中添加UIBackgroundModes

希望这有帮助。