android - 如何禁用奖励视频显示/播放的后退按钮？

Question

在奖励视频播放期间，我想禁用后退按钮并设置最短等待时间。有可能吗？我应该改变哪个功能来完成我想要的功能？这是我的代码

 if (mAd.isLoaded()) {
     mAd.show();

 } else {
      startActivity(new Intent(EssayActivityQstnShow2.this, Essay_Answer_Show.class));
 }

这是奖励视频广告的处理方法

    private void loadRewardedVideoAds() {
    if (!mAd.isLoaded()) {
        mAd.loadAd(getResources().getString(R.string.rewardedvideoid), new AdRequest.Builder().build());
    }
}

@Override
public void onRewardedVideoAdLoaded() {
}

@Override
public void onRewardedVideoAdOpened() {
  //  onBackPressed();


}

@Override
public void onRewardedVideoStarted() {


 //   onBackPressed();

}

@Override
public void onRewardedVideoAdClosed() {


    startActivity(new Intent(EssayActivityQstnShow2.this, Essay_Answer_Show.class));
}

@Override
public void onRewarded(RewardItem rewardItem) {
}

@Override
public void onRewardedVideoAdLeftApplication() {
}

@Override
public void onRewardedVideoAdFailedToLoad(int i) {
    loadRewardedVideoAds();
}

@Override
public void onRewardedVideoCompleted() {
    startActivity(new Intent(EssayActivityQstnShow2.this, Essay_Answer_Show.class));
}

Answer 1

试试下面的代码

private boolean isVideoPlaying;

@Override
public void onRewardedVideoStarted() {
    isVideoPlaying = true;
}

@Override
public void onRewardedVideoAdClosed() {
    isVideoPlaying = false;
}

然后 onBackPress() 检查视频是否正在播放

 @Override
public void onBackPressed() {
    if (!isVideoPlaying)
        super.onBackPressed();
}

在实现之前，请阅读 policies小心。