从广播接收器接收数据时，在Activity中更新TextView

Question

虽然我能够完成这项任务但是看来这种方法并不好，因为我在广播接收器中创建了Activity的实例。有没有更好的方法来实现它？

@Override
public void onReceive(Context context, Intent intent) {

String receivedIntent = intent.getAction();

MainActivity inst = MainActivity.instance();

setPref(context);



    if(m_Accactive){
    if (receivedIntent.equals(IntentManager.ACCELEROMETER_DATA_FILTER)) {

        Log.d("Accel", "acc data");
        recAcc = (AccelerometerClass) intent
                .getSerializableExtra(Constants.ACC_DATA_KEY);
        recData = recAcc;

        if (inst != null) {
            m_AccRate = inst.getM_AccFreq();
            m_AccRetrieveTxtForm = FormatToString(recAcc);
            inst.textViewSettings(inst.m_AcceleroReading, R.id.AccData,
                    m_AccRetrieveTxtForm);
        }

    }
    }