Question

我的背景IntentService在模拟器上每1分钟后完全触发但在实际设备上根本没有运行，有人可以告诉我为什么吗？我使用的手机是Android Infinix。

在我的MainActivity的onCreate方法中，我有：

AlarmManager alarmMgr = (AlarmManager) MainActivity.this.getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent(MainActivity.this, RemoveDownloadService.class);
    intent.setData(Uri.parse("First"));
    PendingIntent pendingIntent = PendingIntent.getService(this, 0, intent, 0);

    // Set the alarm to start at 2:00 p.m.
    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(System.currentTimeMillis());
    calendar.set(Calendar.HOUR_OF_DAY, 18);
    calendar.set(Calendar.MINUTE, 32);


    // Repeat every 24-hours
    alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
            1000 * 60 * 1, pendingIntent);

我的Manfiest文件：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.macbookpro.videodownload">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".DownloadListActivity"
        android:screenOrientation="portrait">
    </activity>
    <service
        android:name=".RemoveDownloadService"
        android:exported="false"/>
</application>

IntentService类：

public class RemoveDownloadService extends IntentService {

public static final String LOG_TAG = "RemoveDownloadService";

public RemoveDownloadService() {
    super(LOG_TAG);
}

@Override
protected void onHandleIntent(Intent workIntent) {
    String str = workIntent.getDataString();
    ArrayList<VideoDownloadEntity> arrDownloads = new ArrayList<>();
    arrDownloads = DatabaseHandler.getHelper(getApplicationContext()).getVideoDowloads();
    Toast toast = Toast.makeText(getBaseContext(), str, Toast.LENGTH_LONG);
    toast.setGravity(Gravity.TOP, 25, 400);
    toast.show();
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
    String nowDateStr = dateFormat.format(Calendar.getInstance().getTime());
    try {
        Date nowDate = dateFormat.parse(nowDateStr);
        if(arrDownloads.size()>0)
        {
            for(VideoDownloadEntity downloadEntity: arrDownloads)
            {
                Date downloadedDate = dateFormat.parse(downloadEntity.getVideoDownloadDate());
                long diff = downloadedDate.getTime() - nowDate.getTime();
                long dateDaysDifference = TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS);
                System.out.println ("Days: " + dateDaysDifference);
                // If the downloaded Video is older than 7 days then Delete it
                if(dateDaysDifference > 7l)
                    MediaDownloadManager.getInstance(getBaseContext()).deleteMediaFile(downloadEntity);
            }
        }
    } catch (ParseException e) {
        e.printStackTrace();
    }
}
}

Answer 1

尝试从

更改结束标记

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

到

requestCode

对于运行android 4.3的某些设备，int requestCode = 1; PendingIntent pendingIntent = PendingIntent.getActivity(this, requestCode, intent, PendingIntent.FLAG_UPDATE_CURRENT);应不为0

stopSelf();

也可能需要将onHandleIntent()添加到Fecha

的末尾

IntentService在模拟器上工作但不在真实设备上工作

1 个答案: