Android的地理栅栏不触发，造成GPS的活动，或致电IntentService

Question

所以我跟着我发现这里的文档：https://developer.android.com/training/location/geofencing.html

实现教程后，我可以看到，地理栅栏我与已创建和测试添加。我获得了成功地位。

我现在的问题是：添加了地理栅栏，但我的手机没有显示GPS活动，即使添加成功，Geofence也没有触发PendingIntent。

我在舱单申报服务：

<service android:name=".journeytools.TraiNapIntentService" 
     android:exported="false"/> 

和我有以下权限：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 

类添加地理栅栏是：

public class SplashScreen extends Activity implements View.OnClickListener, ResultCallback<Status>, 
    GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener { 

TextView miles, push, alarm; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.splash_screen); 

    buildGoogleApiClient(); 
    System.out.println("Building Google Api Client"); 

    if (GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext()) 
      != ConnectionResult.SUCCESS) { 
     //TODO Add something to post a message to the screen that the service isn't available 
     System.out.println("Service not Available"); 
    } else { 
     System.out.println("Service Available"); 
     miles = (TextView) findViewById(R.id.tvmiles); 

     push = (TextView) findViewById(R.id.tvpush); 

     alarm = (TextView) findViewById(R.id.tvalarm); 

     Button button = (Button)findViewById(R.id.button); 

     button.setOnClickListener(this); 
    } 
} 

ArrayList geoFenceList; 
PendingIntent geoFencePendingIntent = null; 

/** 
* Provides the entry point to Google Play services. 
*/ 
protected GoogleApiClient mGoogleApiClient; 

@Override 
public void onClick(View v) { 

    System.out.println("Onclick pressed"); 

    DataGather data = new DataGather(); 

    data.writePreferences(this, 5, false, true); 
    data.writeRecentJourney(this, "Wareham", "Poole"); 

    double longitude = data.getGoingToLong(getBaseContext()); 
    double latitude = data.getGoingToLat(getBaseContext()); 
    float proximity = getProximity(); 

    /* 
    * Add the geofence work. 
    */ 

    geoFenceList = new ArrayList(); 

    geoFenceList.add(
      new Geofence.Builder() 

        .setRequestId("Testing the addition") 

        .setCircularRegion(
          latitude, 
          longitude, 
          proximity) 

        .setExpirationDuration(Geofence.NEVER_EXPIRE) 

        .setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER) 

        .build() 
    ); 

    System.out.println("Added Geofence to Arraylist"); 

    LocationServices.GeofencingApi.addGeofences(
     mGoogleApiClient, 
     getGeofencingRequest(), 
     getGeofencePendingIntent() 
    ).setResultCallback(this); 

    System.out.println("Added GeoFence"); 

} 

@Override 
protected void onStart() { 
    super.onStart(); 
    mGoogleApiClient.connect(); 
} 

@Override 
protected void onStop() { 
    super.onStop(); 
    mGoogleApiClient.disconnect(); 
} 

/** 
* Builds a GoogleApiClient. Uses the {@code #addApi} method to request the LocationServices API. 
*/ 
protected synchronized void buildGoogleApiClient() { 
    mGoogleApiClient = new GoogleApiClient.Builder(this) 
      .addConnectionCallbacks(this) 
      .addOnConnectionFailedListener(this) 
      .addApi(LocationServices.API) 
      .build(); 
} 

private GeofencingRequest getGeofencingRequest() { 
    GeofencingRequest.Builder geoFencingRequestBuilder = new GeofencingRequest.Builder(); 

    geoFencingRequestBuilder.setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER); 

    geoFencingRequestBuilder.addGeofences(geoFenceList); 

    System.out.println("Returning geoFencingRequestBuilder.build()"); 

    return geoFencingRequestBuilder.build(); 
} 

/** 
* Uses the users inserted information to derive the proximity setting. 
* @return Returns a float of the proximity number. 
*/ 
private float getProximity(){ 

    DataGather dataGather = new DataGather(); 

    String[] prefs = dataGather.getPreferences(this); 

    System.out.println("Returning Float" + Float.parseFloat(prefs[0]) * 1609.344); 

    return (float) (Float.parseFloat(prefs[0]) * 1609.344); 
} 

private PendingIntent getGeofencePendingIntent(){ 

    Intent intent = new Intent(this, TraiNapIntentService.class); 

    System.out.println("Returning PendingIntent.getSerivce"); 

    return PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); 

} 

/** 
* TODO Finish this method 
* @param status 
*/ 
public void onResult(Status status) { 
    if (status.isSuccess()) { 
     System.out.println("Success status received"); 
    } else { 
     System.out.println("Non-Success status received"); 
    } 
} 

/** 
* TODO Finish this method 
* @param bundle 
*/ 
@Override 
public void onConnected(Bundle bundle) { 
    System.out.println("onConnected"); 
} 

/** 
* TODO Finish this method 
* @param i 
*/ 
@Override 
public void onConnectionSuspended(int i) { 
    System.out.println("onConnectionSuspended"); 
} 

/** 
* TODO Finish this method 
* @param connectionResult 
*/ 
@Override 
public void onConnectionFailed(ConnectionResult connectionResult) { 
    System.out.println("Connection Failed"); 
} 
} 

我的代码没有按没有达到IntentService，所以我没有发布，但如果有人需要，我可以。

有什么想法缺少什么？

Answer 1

我对Google的地理围栏解决方案感兴趣的一点是，它在进行GPS轮询时不会显示GPS图标，并且通过主要进行网络位置调用可以降低电力成本。对于你的问题，如果你有一个非常小的地理围栏（< 50米半径），你的位置精度可能比你的地理围栏大，所以它不会注册一个入口事件（这是你唯一正在监听的事件对于）。尝试更大的地理围栏来测试您的代码。