如何及时找到设备位置

Question

我正在创建一个需要查找本地设备的位置并将其与另一台设备的位置进行比较的应用。我正在尝试使用 Google Play 服务位置 API 来查找设备的位置，但似乎连接时间太长了。我还没有看到它连接。它要么真的很慢，要么设置不正确。这些 api 在连接时通常很快吗？

这是我所拥有的：

public class LocationHandler implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener
{
    private Activity currActivity = null;
    private GoogleApiClient mGoogleApiClient = null;

    public LocationHandler(Activity act)
    {
        currActivity = act;
    }

    public void Setup()
    {
        if (mGoogleApiClient == null)
        {
            mGoogleApiClient = new GoogleApiClient.Builder(currActivity)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
            mGoogleApiClient.connect();
        }
    }

    @Override
    public void onConnected(@Nullable Bundle bundle)
    {
        Toast.makeText(currActivity, "Connected to service.", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onConnectionSuspended(int i)
    {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult)
    {

    }
}

我有以下权限：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.INTERNET" />

我也在 build.gradle 中添加了这个：

compile 'com.google.android.gms:play-services:9.2.0'

Answer 1

在这种情况下，我会使用 LocationManager：

public class LocationHandler implements implements LocationListener{
LocationManager mLocationManager;

  public void Setup(){
    mLocationManager = (LocationManager) getApplicationContext()
            .getSystemService(LOCATION_SERVICE);
    mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
            500, 10, this);
  }

  @Override
  public void onLocationChanged(Location location) {
    //do something with your location
  }

  @Override
  public void onStatusChanged(String provider, int status, Bundle extras) {}

  @Override
  public void onProviderEnabled(String provider) {}

  @Override
  public void onProviderDisabled(String provider) {}
  }
}

这种方法直截了当，允许您跳过处理 Google Play 服务。