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Geofencing / Application / src / com.example.android.wearable.geofencing /

GeofenceTransitionsIntentService.java

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/*
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 * Copyright (C) 2014 The Android Open Source Project
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package com.example.android.wearable.geofencing;
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import static com.example.android.wearable.geofencing.Constants.CONNECTION_TIME_OUT_MS;
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import static com.example.android.wearable.geofencing.Constants.GEOFENCE_DATA_ITEM_PATH;
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import static com.example.android.wearable.geofencing.Constants.GEOFENCE_DATA_ITEM_URI;
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import static com.example.android.wearable.geofencing.Constants.KEY_GEOFENCE_ID;
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import static com.example.android.wearable.geofencing.Constants.TAG;
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import android.app.IntentService;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Looper;
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import android.util.Log;
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import android.widget.Toast;
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import com.google.android.gms.common.ConnectionResult;
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import com.google.android.gms.common.api.GoogleApiClient;
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import com.google.android.gms.location.Geofence;
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import com.google.android.gms.location.GeofencingEvent;
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import com.google.android.gms.wearable.PutDataMapRequest;
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import com.google.android.gms.wearable.Wearable;
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import java.util.concurrent.TimeUnit;
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/**
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 * Listens for geofence transition changes.
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 */
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public class GeofenceTransitionsIntentService extends IntentService
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        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
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    private GoogleApiClient mGoogleApiClient;
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    public GeofenceTransitionsIntentService() {
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        super(GeofenceTransitionsIntentService.class.getSimpleName());
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    }
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    @Override
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    public void onCreate() {
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        super.onCreate();
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        mGoogleApiClient = new GoogleApiClient.Builder(this)
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                .addApi(Wearable.API)
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                .addConnectionCallbacks(this)
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                .addOnConnectionFailedListener(this)
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                .build();
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    }
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    /**
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     * Handles incoming intents.
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     * @param intent The Intent sent by Location Services. This Intent is provided to Location
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     * Services (inside a PendingIntent) when addGeofences() is called.
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     */
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    @Override
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    protected void onHandleIntent(Intent intent) {
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        GeofencingEvent geoFenceEvent = GeofencingEvent.fromIntent(intent);
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        if (geoFenceEvent.hasError()) {
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            int errorCode = geoFenceEvent.getErrorCode();
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            Log.e(TAG, "Location Services error: " + errorCode);
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        } else {
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            int transitionType = geoFenceEvent.getGeofenceTransition();
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            if (Geofence.GEOFENCE_TRANSITION_ENTER == transitionType) {
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                // Connect to the Google Api service in preparation for sending a DataItem.
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                mGoogleApiClient.blockingConnect(CONNECTION_TIME_OUT_MS, TimeUnit.MILLISECONDS);
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                // Get the geofence id triggered. Note that only one geofence can be triggered at a
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                // time in this example, but in some cases you might want to consider the full list
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                // of geofences triggered.
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                String triggeredGeoFenceId = geoFenceEvent.getTriggeringGeofences().get(0)
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                        .getRequestId();
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                // Create a DataItem with this geofence's id. The wearable can use this to create
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                // a notification.
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                final PutDataMapRequest putDataMapRequest =
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                        PutDataMapRequest.create(GEOFENCE_DATA_ITEM_PATH);
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                putDataMapRequest.getDataMap().putString(KEY_GEOFENCE_ID, triggeredGeoFenceId);
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                putDataMapRequest.setUrgent();
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                if (mGoogleApiClient.isConnected()) {
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                    Wearable.DataApi.putDataItem(
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                            mGoogleApiClient, putDataMapRequest.asPutDataRequest()).await();
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                } else {
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                    Log.e(TAG, "Failed to send data item: " + putDataMapRequest
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                            + " - Client disconnected from Google Play Services");
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                }
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                Toast.makeText(this, getString(R.string.entering_geofence),
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                        Toast.LENGTH_SHORT).show();
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                mGoogleApiClient.disconnect();
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            } else if (Geofence.GEOFENCE_TRANSITION_EXIT == transitionType) {
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                // Delete the data item when leaving a geofence region.
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                mGoogleApiClient.blockingConnect(CONNECTION_TIME_OUT_MS, TimeUnit.MILLISECONDS);
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                Wearable.DataApi.deleteDataItems(mGoogleApiClient, GEOFENCE_DATA_ITEM_URI).await();
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                showToast(this, R.string.exiting_geofence);
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                mGoogleApiClient.disconnect();
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            }
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        }
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    }
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    /**
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     * Showing a toast message, using the Main thread
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     */
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    private void showToast(final Context context, final int resourceId) {
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        Handler mainThread = new Handler(Looper.getMainLooper());
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        mainThread.post(new Runnable() {
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            @Override
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            public void run() {
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                Toast.makeText(context, context.getString(resourceId), Toast.LENGTH_SHORT).show();
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            }
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        });
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    }
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    @Override
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    public void onConnected(Bundle connectionHint) {
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    }
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    @Override
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    public void onConnectionSuspended(int cause) {
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    }
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    @Override
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    public void onConnectionFailed(ConnectionResult result) {
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    }
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}
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