java - 修复 Android 8+ 上的 'background service' 问题

Question

我有在幕后运行服务的代码。当我们将文本复制到手机时，它被设置为运行。此代码在 Android 8 以下运行良好但问题是当我在 Android 8 及更高版本上运行该应用程序时

在搜索中，我意识到我必须使用 FOREGROUND_SERVICE 并授予对该项目的特定访问权限。

您现在建议什么解决方案？

服务等级:

public class AutoDownloadService extends Service {

    private ClipboardManager mClipboardManager;
    public static final String CHANNEL_ID = "ForegroundServiceChannel";

    @Override
    public void onCreate() {
        super.onCreate();

        mClipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
        mClipboardManager.addPrimaryClipChangedListener(mOnPrimaryClipChangedListener);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        String input = intent.getStringExtra("inputExtra");
        createNotificationChannel();
        Intent notificationIntent = new Intent(this, SettingsActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

        Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
                .setContentTitle("Foreground Service")
                .setContentText(input)
                .setSmallIcon(R.drawable.ic_launcher_background)
                .setContentIntent(pendingIntent)
                .build();

        startForeground(1, notification);
       //  stopSelf();
        return START_NOT_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (mClipboardManager != null) {
            mClipboardManager.removePrimaryClipChangedListener(mOnPrimaryClipChangedListener);
        }
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    private void createNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel serviceChannel = new NotificationChannel(
                    CHANNEL_ID,
                    "Foreground Service Channel",
                    NotificationManager.IMPORTANCE_DEFAULT
            );

            NotificationManager manager = getSystemService(NotificationManager.class);
            manager.createNotificationChannel(serviceChannel);
        }
    }

    private ClipboardManager.OnPrimaryClipChangedListener mOnPrimaryClipChangedListener =
            new ClipboardManager.OnPrimaryClipChangedListener() {
                @Override
                public void onPrimaryClipChanged() {
                    ClipData clip = mClipboardManager.getPrimaryClip();
                    String textClipBoard = clip.getItemAt(0).getText().toString();
                    Toast.makeText(AutoDownloadService.this, textClipBoard, Toast.LENGTH_SHORT).show();
                }
            };
}

list

<service
      android:name=".services.AutoDownloadService"
      android:exported="false"
      android:permission="android.permission.BIND_JOB_SERVICE" />

• 最后添加使用权限

<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />

Answer 1

我认为你应该使用Intent Service而不是service。您可以做的是，如果系统关闭您的服务，您可以在使用警报管理器一段时间后再次触发它。