android - インテントサービスをバックグラウンドで継続的に実行する方法は?

Question

だから私は呼ばれるサービスを作成したActivity Recognition APIを使用していますActivityRecognitionIntentService。

これが常にバックグラウンドで機能することを本当に望んでいます。

問題は、アプリがキャッシュされた実行中のサービスに表示されますが、アプリケーションを終了するとシャットダウンし、バックグラウンドで実行されないことです。

UI を更新するためのメイン アクティビティにブロードキャスト レシーバーを使用しています。

を使用しています。を返すIntentServiceを作成しました。onStartCommandSTART_STICKY

import android.app.IntentService;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.ActivityRecognition;
import com.google.android.gms.location.ActivityRecognitionResult;
import com.google.android.gms.location.DetectedActivity;

public class ActivityRecognitionIntentService extends IntentService implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {

    Context mContext;
    GoogleApiClient mGApiClient;
    BroadcastReceiver receiver;
    private static final String TAG = ActivityRecognitionIntentService.class.getSimpleName();

    public ActivityRecognitionIntentService() {
        super("ActivityRecognitionIntentService");

    }

    @Override
    protected void onHandleIntent(Intent intent) {
        if(ActivityRecognitionResult.hasResult(intent)) {
            //Extract the result from the Response
            ActivityRecognitionResult result = ActivityRecognitionResult.extractResult(intent);
            DetectedActivity detectedActivity = result.getMostProbableActivity();

            //Get the Confidence and Name of Activity
            int confidence = detectedActivity.getConfidence();
            String mostProbableName = getActivityName(detectedActivity.getType());

            //Fire the intent with activity name & confidence
            Intent i = new Intent("ImActive");
            i.putExtra("activity", mostProbableName);
            i.putExtra("confidence", confidence);

            Log.d(TAG, "Most Probable Name : " + mostProbableName);
            Log.d(TAG, "Confidence : " + confidence);

            //Send Broadcast to be listen in MainActivity
            this.sendBroadcast(i);

        }else {
            Log.d(TAG, "Intent had no data returned");
        }
    }

    //Get the activity name
    private String getActivityName(int type) {
        switch (type)
        {
            case DetectedActivity.IN_VEHICLE:
                return "still";
            case DetectedActivity.ON_BICYCLE:
                return "moving";
            case DetectedActivity.ON_FOOT:
                return "moving";
            case DetectedActivity.WALKING:
                return "moving";
            case DetectedActivity.STILL:
                return "still";
            case DetectedActivity.TILTING:
                return "still";
            case DetectedActivity.UNKNOWN:
                return "still";
            case DetectedActivity.RUNNING:
                return "moving";

        }
        return "N/A";
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent,flags,startId);
        buildGoogleClient();
        Toast.makeText(this, "service starting", Toast.LENGTH_SHORT).show();
        return START_STICKY;
    }

    private boolean isPlayServiceAvailable() {
        return GooglePlayServicesUtil.isGooglePlayServicesAvailable(mContext) == ConnectionResult.SUCCESS;
    }

    private void buildGoogleClient()
    {
        //Check Google Play Service Available
        if (isPlayServiceAvailable()) {
            mGApiClient = new GoogleApiClient.Builder(this)
                    .addApi(ActivityRecognition.API)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .build();
            //Connect to Google API
            mGApiClient.connect();
        }
    }

    @Override
    public void onConnected(Bundle bundle) {
        Intent i = new Intent(this, ActivityRecognitionIntentService.class);
        PendingIntent mActivityRecongPendingIntent = PendingIntent
                .getService(this, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);

        Log.d(TAG, "connected to ActivityRecognition");
        ActivityRecognition.ActivityRecognitionApi.requestActivityUpdates(mGApiClient, 0, mActivityRecongPendingIntent);

    }

    @Override
    public void onConnectionSuspended(int i) {
        Log.d(TAG, "Suspended to ActivityRecognition");
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Log.d(TAG, "Not connected to ActivityRecognition");
    }

}

マニフェストでサービスも宣言しました

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

必要な権限とともに

<uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />