Fused Location Provider 不会在位移时提供位置更新

Question

我使用 Fused Location API 来获取位置更新。我在根据 setTimeInterval 设置 LocationRequest 时收到更新。但我只需要更新 10m 运动。所以我放了 setSmallestDisplacement(10) 。但是当我放 setSmallestDisplacement(10) 时，我没有得到更新。以下是我的 LocationUpdate 类

public class LocationManger implements
    GoogleApiClient.ConnectionCallbacks,
    GoogleApiClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener {

GoogleApiClient mLocationClient;
Location mCurrentLocation;
LocationRequest mLocationRequest;
Context mContext;


public LocationManger(Context context) {
    super();
    mLocationClient = new GoogleApiClient.Builder(context)
            .addApi(LocationServices.API)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .build();
    mContext = context;
}


@Override
public void onLocationChanged(Location location) {
    mCurrentLocation = location;

}


@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    Helper.showToast("failed", mContext);

}

@Override
public void onConnected(Bundle arg0) {

if (mLocationRequest == null) {
        mLocationRequest = LocationRequest.create();
         mLocationRequest.setSmallestDisplacement(10);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

    }

    LocationServices.FusedLocationApi.requestLocationUpdates(mLocationClient, mLocationRequest, this);

}

@Override
public void onConnectionSuspended(int i) {
    mLocationClient.connect();

}

/**
 * Function to start the location updates
 */
public void startLocationUpdates() {
    if (!mLocationClient.isConnected())
        mLocationClient.connect();
}

/**
 * function to stop the location updates
 */
public void stopUpdatingLocation() {
    if (mLocationClient.isConnected()) {

     LocationServices.FusedLocationApi.removeLocationUpdates(mLocationClient, this);
    }
    mLocationClient.disconnect();

}

/**
 * function to get the current latitude
 */
public double getCurrentLatitude() {
    if (mCurrentLocation != null) {
        return mCurrentLocation.getLatitude();
    }
    return 0;

}

/**
 * function to get the current longitude
 */
public double getCurrentLongitude() {
    if (mCurrentLocation != null) {
        return mCurrentLocation.getLongitude();
    }
    return 0;
}

/**
 * function to get the current location
 */
public Location getCurrentLocation() {
    return LocationServices.FusedLocationApi.getLastLocation(mLocationClient);
}

}

如果有人知道这个问题，请给我一个解决方案。提前致谢

Answer 1

使用 setFastestInterval(0) 允许比 setInterval 更频繁地更新。否则你会错过一些位移更新