[Android] Android8.0 后台服务保活的一种思路

• 进入APP
  
• 开启后台服务Service
  
• 后台服务Service开启线程，连接MQ
  
• MQ的消费事件，发送广播
  
• 广播接收器中，处理启动服务（若服务已被关闭）和文本语音播放功能
  

<receiver
  android:name=".receiver.MyReceiver"
  android:enabled="true"
  android:exported="true">
</receiver>

public class MyReceiver extends BroadcastReceiver {
  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    //匹配下之前定义的action
    if ("OPEN_SERVICE".equals(action)) {
      if (!ServiceUtils.isServiceRunning(MqMsgService.class)) {
        Log.e("--test", "服务未启动，先启动服务");
        Intent myIntent = new Intent(context, MqMsgService.class);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
          context.startForegroundService(intent);
        } else {
          context.startService(intent);
        }
      }
      String text = intent.getStringExtra("text");
      Log.e("--test", "广播传的消息"+text);
      EventBus.getDefault().post(new SpeakEvent(text));
    }
  }
}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
  Notification notification = NotifyUtil.sendNotification(this, "平板", "后台MQ服务运行中", NotificationCompat.PRIORITY_HIGH);
  startForeground(1, notification);
}