无法在android studio中解析符号rewardedvideocall back

我想在android studio中的AppcompatActivity中创建AppDeal的回调，但它给了我一个错误 无法解析符号rewardedvideocallback 我的代码是

 public class ListActivity extends AppCompatActivity implements     NavigationView.OnNavigationItemSelectedListener
{ 
 {
  @Override protected void onCreate(final Bundle savedInstanceState) 
{  
  super.onCreate(savedInstanceState); StrictMode.ThreadPolicy policy = 
   new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
    StrictMode.setThreadPolicy(policy); 
      setContentView(R.layout.activity_home);

  Appodeal.setRewardedVideoCallbacks(new RewardedVideoCallbacks() //***here error shown***
  {
  private Toast mToast;
  @Override
  public void onRewardedVideoLoaded() {
    showToast("onRewardedVideoLoaded");
  }
  @Override
  public void onRewardedVideoFailedToLoad() {
   showToast("onRewardedVideoFailedToLoad");
  }
  @Override
  public void onRewardedVideoShown() {
  showToast("onRewardedVideoShown");
  }
 @Override
  public void onRewardedVideoFinished(int amount, String name) {
  showToast(String.format("onRewardedVideoFinished. Reward: %d %s", amount, name));
}
 @Override
 public void onRewardedVideoClosed(boolean finished) {
showToast(String.format("onRewardedVideoClosed,  finished: %s",      finished));
}
void showToast(final String text) {
if (mToast == null) {
  mToast = Toast.makeText(mActivity, text, Toast.LENGTH_SHORT);
}
mToast.setText(text);
mToast.setDuration(Toast.LENGTH_SHORT);
mToast.show();

}

---

});

我只是在这样编写代码时解决了这个问题

Appodeal.setRewardedVideoCallbacks(new   
com.appodeal.ads.RewardedVideoCallbacks() 
{
 });

---

只需添加这一行：com.appodeal.ads

RewardedVideoCallbacks

不是android API。相关标签和说明正在使用任何SDK，可能

ironsource mobile

？因此，您能否帮助我@ρ∑ρρk检查您的导入文件，说明它位于

import com.超音速.mediationsdk.SDK.RewardedVideoListener内@ρцσρєK我正在实施Appodale广告，我可以显示Appodale.pawarded视频，但无法实施回拨