Android studio开发app的OAID如何获取？Android studio一直报错

跟着开发文档修改相应数值后并不能获取到OAID，Android studio一直报错
开发文档为https://developer.huawei.com/consumer/cn/codelab/HMSAdsOAID/index.html#2

package com.huawei.pps.hms.test.oaid;

import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.widget.TextView;

import com.huawei.pps.hms.test.BaseActivity;
import com.huawei.pps.hms.test.R;

public class OaidActivity extends BaseActivity implements OaidCallback {//这里报错
    private static final String TAG = "OaidActivity";
    private TextView mAdIdTv;
    private TextView mDisableAdIdTv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ad_id);
        init();
    }

    protected void init() {
        super.init();
        // Create the "ad_id" TextView, which tries to show the obtained "OAID".
        mAdIdTv = findViewById(R.id.ad_id_tv);
        // Create the "disable_ad_id" TextView, which tries to show the obtained "Disable Personalized Ads" Switch
        mDisableAdIdTv = findViewById(R.id.disable_ad_id_tv);
        getIdentifierThread.start();
    }

    /**
     * Obtains device ID information from a non-UI thread.
     */
    private Thread getIdentifierThread = new Thread() {

        @Override
        public void run() {
            getOaid();
        }
    };

    private void getOaid() {
        //  Get OAID by sdk mode.
        OaidSdkUtil.getOaid(this, this);
    }

    /**
     * Update the device ID information from a UI thread.
     */
    private void updateAdIdInfo(final String oaid, final boolean isLimitAdTrackingEnabled) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                if (!TextUtils.isEmpty(oaid)) {
                    mAdIdTv.setText(oaid);
                }
                mDisableAdIdTv.setText(String.valueOf(isLimitAdTrackingEnabled));
            }
        });
    }

    @Override//这里报错
    public void onSuccuss(String oaid, boolean isOaidTrackLimited) {
        Log.i(TAG, "oiad=" + oaid + ", isLimitAdTrackingEnabled=" + isOaidTrackLimited);
        updateAdIdInfo(oaid, isOaidTrackLimited);
    }

    @Override
    public void onFail(String errMsg) {
        Log.e(TAG, "getOaid Fail: " + errMsg);
    }

}

就是一编译就错，尝试在真机上调试也不行

这是根据华为官方demo下载下来的源码

https://developer.huawei.com/consumer/cn/codelab/HMSAdsOAID/index.html#4
它的文档达到的效果是

求安卓同仁指点江山，不甚感激
我连一个demo都运行不出来

按这个操作来，把方法加进来

继承一个抽象类或者实现一个接口，必须实现其中的抽象方法，这是java的基础语法

运行一下官方的demo把，如果可以再找不同。https://github.com/huaweicodelabs/Ads/tree/master/OAID-Initial