Android LocationServices.GeofencingApi示例用法

Question

有誰知道使用LocationServices.GeofencingApi的示例嗎？ 我找到的所有android geofencing示例都使用了不贊成使用的LocationClient類。 從我所看到的，LocationServices類是使用的類，但似乎沒有任何有關如何使用它的工作示例。

我發現的最接近的是this後突出位置更新請求

UPDATE：最接近的答案，我發現是this git example項目 - 但它仍然使用過時LocationClient得到觸發圍欄。

Answer 1

我剛剛將我的代碼遷移到新的API。這是一個工作示例：

基於這個答案在GitHub上一個工作項目：https://github.com/androidfu/GeofenceExample

這個助手類使用API​​註冊的地理圍欄。我使用回調接口與調用活動/片段進行通信。您可以構建適合您需求的回調。

public class GeofencingRegisterer implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener { 
    private Context mContext; 
    private GoogleApiClient mGoogleApiClient; 
    private List<Geofence> geofencesToAdd; 
    private PendingIntent mGeofencePendingIntent; 

    private GeofencingRegistererCallbacks mCallback; 

    public final String TAG = this.getClass().getName(); 

    public GeofencingRegisterer(Context context){ 
     mContext =context; 
    } 

    public void setGeofencingCallback(GeofencingRegistererCallbacks callback){ 
     mCallback = callback; 
    } 

    public void registerGeofences(List<Geofence> geofences){ 
     geofencesToAdd = geofences; 

     mGoogleApiClient = new GoogleApiClient.Builder(mContext) 
       .addApi(LocationServices.API) 
       .addConnectionCallbacks(this) 
       .addOnConnectionFailedListener(this) 
       .build(); 
     mGoogleApiClient.connect(); 
    } 


    @Override 
    public void onConnected(Bundle bundle) { 
     if(mCallback != null){ 
      mCallback.onApiClientConnected(); 
     } 

     mGeofencePendingIntent = createRequestPendingIntent(); 
     PendingResult<Status> result = LocationServices.GeofencingApi.addGeofences(mGoogleApiClient, geofencesToAdd, mGeofencePendingIntent); 
     result.setResultCallback(new ResultCallback<Status>() { 
      @Override 
      public void onResult(Status status) { 
       if (status.isSuccess()) { 
        // Successfully registered 
        if(mCallback != null){ 
         mCallback.onGeofencesRegisteredSuccessful(); 
        } 
       } else if (status.hasResolution()) { 
        // Google provides a way to fix the issue 
        /* 
        status.startResolutionForResult(
          mContext,  // your current activity used to receive the result 
          RESULT_CODE); // the result code you'll look for in your 
        // onActivityResult method to retry registering 
        */ 
       } else { 
        // No recovery. Weep softly or inform the user. 
        Log.e(TAG, "Registering failed: " + status.getStatusMessage()); 
       } 
      } 
     }); 
    } 

    @Override 
    public void onConnectionSuspended(int i) { 
     if(mCallback != null){ 
      mCallback.onApiClientSuspended(); 
     } 

     Log.e(TAG, "onConnectionSuspended: " + i); 
    } 

    @Override 
    public void onConnectionFailed(ConnectionResult connectionResult) { 
     if(mCallback != null){ 
      mCallback.onApiClientConnectionFailed(connectionResult); 
     } 

     Log.e(TAG, "onConnectionFailed: " + connectionResult.getErrorCode()); 
    } 



    /** 
    * Returns the current PendingIntent to the caller. 
    * 
    * @return The PendingIntent used to create the current set of geofences 
    */ 
    public PendingIntent getRequestPendingIntent() { 
     return createRequestPendingIntent(); 
    } 

    /** 
    * Get a PendingIntent to send with the request to add Geofences. Location 
    * Services issues the Intent inside this PendingIntent whenever a geofence 
    * transition occurs for the current list of geofences. 
    * 
    * @return A PendingIntent for the IntentService that handles geofence 
    * transitions. 
    */ 
    private PendingIntent createRequestPendingIntent() { 
     if (mGeofencePendingIntent != null) { 
      return mGeofencePendingIntent; 
     } else { 
      Intent intent = new Intent(mContext, GeofencingReceiver.class); 
      return PendingIntent.getService(mContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); 
     } 
    } 
} 

這個類是你的地理圍欄轉換接收器的基類。

public abstract class ReceiveGeofenceTransitionIntentService extends IntentService { 

    /** 
    * Sets an identifier for this class' background thread 
    */ 
    public ReceiveGeofenceTransitionIntentService() { 
     super("ReceiveGeofenceTransitionIntentService"); 
    } 

    @Override 
    protected void onHandleIntent(Intent intent) { 

     GeofencingEvent event = GeofencingEvent.fromIntent(intent); 
     if(event != null){ 

      if(event.hasError()){ 
       onError(event.getErrorCode()); 
      } else { 
       int transition = event.getGeofenceTransition(); 
       if(transition == Geofence.GEOFENCE_TRANSITION_ENTER || transition == Geofence.GEOFENCE_TRANSITION_DWELL || transition == Geofence.GEOFENCE_TRANSITION_EXIT){ 
        String[] geofenceIds = new String[event.getTriggeringGeofences().size()]; 
        for (int index = 0; index < event.getTriggeringGeofences().size(); index++) { 
         geofenceIds[index] = event.getTriggeringGeofences().get(index).getRequestId(); 
        } 

        if (transition == Geofence.GEOFENCE_TRANSITION_ENTER || transition == Geofence.GEOFENCE_TRANSITION_DWELL) { 
         onEnteredGeofences(geofenceIds); 
        } else if (transition == Geofence.GEOFENCE_TRANSITION_EXIT) { 
         onExitedGeofences(geofenceIds); 
        } 
       } 
      } 

     } 
    } 

    protected abstract void onEnteredGeofences(String[] geofenceIds); 

    protected abstract void onExitedGeofences(String[] geofenceIds); 

    protected abstract void onError(int errorCode); 
} 

這個類實現了抽象類和做地理圍欄過渡

public class GeofencingReceiver extends ReceiveGeofenceTransitionIntentService { 

    @Override 
    protected void onEnteredGeofences(String[] geofenceIds) { 
     Log.d(GeofencingReceiver.class.getName(), "onEnter"); 
    } 

    @Override 
    protected void onExitedGeofences(String[] geofenceIds) { 
     Log.d(GeofencingReceiver.class.getName(), "onExit"); 
    } 

    @Override 
    protected void onError(int errorCode) { 
     Log.e(GeofencingReceiver.class.getName(), "Error: " + i); 
    } 
} 

而在你的清單中添加的所有處理：

<service 
     android:name="**xxxxxxx**.GeofencingReceiver" 
     android:exported="true" 
     android:label="@string/app_name" > 
</service> 

回調接口

public interface GeofencingRegistererCallbacks { 
    public void onApiClientConnected(); 
    public void onApiClientSuspended(); 
    public void onApiClientConnectionFailed(ConnectionResult connectionResult); 

    public void onGeofencesRegisteredSuccessful(); 
}