LocationCallback没有被呼叫 [英] LocationCallback not getting called

问题描述

我正在使用 FusedLocationProviderClient 发出位置请求.我已将计时器保持30秒钟，以检查是否在该时间段内收到了位置信息. 代码如下:

I am making a location request using FusedLocationProviderClient. I have kept a timer for 30 seconds to check if location is received within that timeframe. Code is below:

 public void requestLocationUpdates() {
    initializeLocationRequest();
    mFusedLocationProviderClient.requestLocationUpdates(mLocationRequest, mLocationCallback, null);
    startTimer();
}

 private void initializeLocationRequest() {
    mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(mContext);
    mLocationRequest = new LocationRequest();
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    mLocationRequest.setInterval(5000);
    mLocationRequest.setFastestInterval(5000);

    mLocationCallback = new LocationCallback() {

        @Override
        public void onLocationResult(LocationResult locationResult) {
            synchronized (SilentCurrentLocationProvider.this) {
                super.onLocationResult(locationResult);
                Location location = locationResult.getLastLocation();
        }
    };
}

  private void startTimer() {
    if (mTimeout < 1) {
        mTimeout = mDefaultTimeout;
    }
    mTimer = new Timer();   
    mTimer.schedule(new LocationTimer(), mTimeout * 1000);
}

在少数设备上，位置不正确.在进一步调试时，我发现正在创建 LocationRequest 和 LocationCallback ，但是它不在 onLocationResult()方法中.

On few devices, location is not coming. On debugging further, I found that LocationRequest and LocationCallback are being created, but it's not coming inside onLocationResult() method.

由于这是实时产品的一部分，因此很难在每台设备上进行调试. 即使我尝试重新启动手机，也无法正常工作.用户尝试了其他应用程序，例如Ola，并且位置即将到来.

Since this is part of a live product, it's hard to debug on every device. Even I tried restarting the phone but it doesn't work. The user tried on other applications like Ola and location was coming there.

位置权限也已授予.

有人可以告诉我此问题的可能原因吗?

推荐答案

我也遇到了同样的问题.在我的情况下，设备定位方法/准确性设置为仅手机，而不是高精度或省电.将设置更改为高精度，并在locationCallback上接收回调.

I was facing this same issue. In my case the device-location method/accuracy was set to Phone only rather than High accuracy or Battery saving. Change the settings to High accuracy and receive callbacks on locationCallback.

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