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我一直在尝试将pendingIntent 作为任务的一部分传递给Activity Recognition Client，但是似乎没有调用pendingIntent。

我正在使用谷歌的活动识别客户端（https://developers.google.com/android/reference/com/google/android/gms/location/ActivityRecognitionClient）。我已经查看了示例代码（在这里找到：https ://github.com/googlesamples/android-play-location/blob/master/ActivityRecognition/app/src/main/java/com/google/android/gms/ location/sample/activityrecognition/MainActivity.java）但似乎看不到我的问题。

我的代码看起来像这样（我已经提取了部分类以使其更易于阅读）：


public class SignIn extends AppCompatActivity {

    private ActivityRecognitionClient mActivityRecognitionClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.sign_in);

        mActivityRecognitionClient = new ActivityRecognitionClient(this);

        Task<Void> task = mActivityRecognitionClient.requestActivityUpdates(1000L, getActivityDetectionPendingIntent());

        task.addOnSuccessListener(result -> Log.i("test", "test"));
        task.addOnFailureListener(e -> Log.e("test", e.toString()));
    }

    private PendingIntent getActivityDetectionPendingIntent() {
        Intent intent = new Intent(this, DetectedActivitiesIntentService.class);

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


package com.example.kangaroute;

import android.app.IntentService;
import android.content.Intent;
import android.util.Log;

import com.google.android.gms.location.ActivityRecognitionResult;
import com.google.android.gms.location.DetectedActivity;

import java.util.ArrayList;

class DetectedActivitiesIntentService extends IntentService {

    protected static final String TAG = "DetectedActivity";

    public DetectedActivitiesIntentService(){
        super(TAG);
    }

    @Override
    public void onCreate(){
        Log.i("test", "works");
        super.onCreate();
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        ActivityRecognitionResult result = ActivityRecognitionResult.extractResult(intent);

        // Get the list of the probable activities associated with the current state of the
        // device. Each activity is associated with a confidence level, which is an int between
        // 0 and 100.
        ArrayList<DetectedActivity> detectedActivities = (ArrayList) result.getProbableActivities();

        for (DetectedActivity activity : detectedActivities){
            Log.i(TAG, activity.toString());
        }

    }
}

当我运行代码时，我希望看到“作品”被打印到 Logcat，因为我从类中的onCreate()方法记录它DetectedActivitiesIntentService。然而，我什么也没看到。

但是，“测试”是从与任务关联的 OnSuccessListener 记录的。当我记录结果时，什么都没有出现...

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1 回答 1

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大声笑猜谁忘了放“公共课”，而只是放了“课”。解决了！

于 2019-04-20T02:33:26.863 回答