ios-高德、百度后台定位并上传服务器

一、配置高德或百度的后台定位框架和代码(略)。

二、配置app不被系统kill，定时获取地理位置信息，并上传服务器(AppDelegate里面)。

具体代码：

1、

- (void)applicationDidEnterBackground:(UIApplication *)application {

    //控制定时器不被kill
    UIApplication * app = [UIApplication sharedApplication];
    __block UIBackgroundTaskIdentifier bgTask;
    bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
        dispatch_async(dispatch_get_main_queue(), ^{
            if (bgTask != UIBackgroundTaskInvalid) {
                bgTask = UIBackgroundTaskInvalid;
            }
        });
    }];
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        dispatch_async(dispatch_get_main_queue(), ^{
            if (bgTask != UIBackgroundTaskInvalid) {
                bgTask = UIBackgroundTaskInvalid ;
            }
        });
    });

}

2、

{
    //全局计时器
    NSTimer * timer;
}

-(void)turnOnTimer{
    //14400.0 秒调用一次
    timer = [NSTimer scheduledTimerWithTimeInterval:14400.0 target:self selector:@selector(pushGPSdata) userInfo:nil repeats:YES];
    [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
}

3、

-(void)pushGPSdata{

    //_dicUrl 全局保存定位信息
    NSString * cityName = [NSString stringWithFormat:@"%@",_dicUrl[@"cityName"]];
    NSString * latitude = [NSString stringWithFormat:@"%@",_dicUrl[@"latitude"]];
    NSString * longitude = [NSString stringWithFormat:@"%@",_dicUrl[@"longitude"]];

    if (cityName.length !=0&&latitude.length !=0&&longitude.length !=0) {
        [self pushGPS:_dicUrl];
    }
}
-(void)pushGPS:(NSMutableDictionary*)dic{

    [com afPostRequestWithUrlString:trail_Url parms:dic finishedBlock:^(id responseObj) {

        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObj options:NSJSONReadingMutableLeaves error:nil];
        NSLog(@"%@",dic[@"message"]);
        NSString * userStatus = [NSString stringWithFormat:@"%@",dic[@"success"]];
        if ([userStatus isEqualToString:@"1"]) {
            NSLog(@"GPS成功");
        }else{
            NSLog(@"GPS失败");
        }
    } failedBlock:^(NSString *errorMsg) {
    }];
}