如何及时找到设备位置

Question

我正在创建一个应用程序，它需要找到本地设备的位置并将其与另一台设备的位置进行比较。我正在尝试使用 Google Play Services location 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？

这是我的资料：

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" />

我也已将此添加到 build.gradle:

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) {}
  }
}

这种方法很简单，可以让您跳过处理 Google Play 服务。

如何及时找到设备位置

How to find device location in a timely manner

java

android

google-play-services

location-services