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Quiz / Wearable / src / com.example.android.wearable.quiz /

UpdateQuestionService.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.quiz;
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import static com.example.android.wearable.quiz.Constants.CHOSEN_ANSWER_CORRECT;
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import static com.example.android.wearable.quiz.Constants.QUESTION_INDEX;
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import static com.example.android.wearable.quiz.Constants.QUESTION_WAS_ANSWERED;
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import android.app.IntentService;
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import android.app.NotificationManager;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Bundle;
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import android.util.Log;
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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.wearable.DataApi;
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import com.google.android.gms.wearable.DataMap;
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import com.google.android.gms.wearable.DataMapItem;
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import com.google.android.gms.wearable.PutDataMapRequest;
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import com.google.android.gms.wearable.PutDataRequest;
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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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 * Updates quiz status on the phone when user selects an answer to a question on the watch.
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 */
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public class UpdateQuestionService extends IntentService
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        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
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    public static final String EXTRA_QUESTION_CORRECT = "extra_question_correct";
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    public static final String EXTRA_QUESTION_INDEX = "extra_question_index";
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    private static final long TIME_OUT_MS = 100;
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    private static final String TAG = "UpdateQuestionService";
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    private GoogleApiClient mGoogleApiClient;
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    public UpdateQuestionService() {
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        super(UpdateQuestionService.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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    @Override
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    protected void onHandleIntent(Intent intent) {
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        mGoogleApiClient.blockingConnect(TIME_OUT_MS, TimeUnit.MILLISECONDS);
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        Uri dataItemUri = intent.getData();
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        if (!mGoogleApiClient.isConnected()) {
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            Log.e(TAG, "Failed to update data item " + dataItemUri
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                    + " because client is disconnected from Google Play Services");
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            return;
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        }
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        DataApi.DataItemResult dataItemResult = Wearable.DataApi.getDataItem(
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                mGoogleApiClient, dataItemUri).await();
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        PutDataMapRequest putDataMapRequest = PutDataMapRequest
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                .createFromDataMapItem(DataMapItem.fromDataItem(dataItemResult.getDataItem()));
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        DataMap dataMap = putDataMapRequest.getDataMap();
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        // Update quiz status variables, which will be reflected on the phone.
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        int questionIndex = intent.getIntExtra(EXTRA_QUESTION_INDEX, -1);
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        boolean chosenAnswerCorrect = intent.getBooleanExtra(EXTRA_QUESTION_CORRECT, false);
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        dataMap.putInt(QUESTION_INDEX, questionIndex);
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        dataMap.putBoolean(CHOSEN_ANSWER_CORRECT, chosenAnswerCorrect);
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        dataMap.putBoolean(QUESTION_WAS_ANSWERED, true);
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        PutDataRequest request = putDataMapRequest.asPutDataRequest();
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        request.setUrgent();
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        Wearable.DataApi.putDataItem(mGoogleApiClient, request).await();
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        // Remove this question notification.
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        ((NotificationManager) getSystemService(NOTIFICATION_SERVICE)).cancel(questionIndex);
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        mGoogleApiClient.disconnect();
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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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