类似于startActivityForResult for Service

private ResultReceiver resultReceiver;

public void setResultReceiver(ResultReceiver resultReceiver) {
    this.resultReceiver = resultReceiver;
}

if (resultReceiver != null) {
    Bundle resultData = new Bundle();
    resultData.putString("key", "value");
    resultReceiver.send(RESULT_CODE, resultData);
}

ResultReceiver resultReceiver = new ResultReceiver(new Handler()) {
    @Override
    protected void onReceiveResult(int resultCode, Bundle resultData) {
        super.onReceiveResult(resultCode, resultData);
        if (resultCode == RESULT_CODE) {
            String result = resultData.getString("key");
            // 处理结果
        }
    }
};

// 将 ResultReceiver 传递给服务
service.setResultReceiver(resultReceiver);