Android Studio 廣告 - 獎勵廣告

 以下是整合 Google 獎勵廣告程式說明 所寫的程式碼,並且加上註解,已經確定在手機上可以使用,自己當作備份參考,有興趣的也可以直接拿去試試看

public class MainActivity2 extends AppCompatActivity {
    private RewardedAd mRewardedAd;
    private final String TAG = "MainActivity2";
    private final String adsWait = "等待廣告播放中...";
    private final String adsFail = "廣告投放失敗";
    private final String btnBack = "返回主選單";

    TextView textView;
    Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        textView = findViewById(R.id.textView);
        textView.setText(adsWait);
        //結束視窗
        button = findViewById(R.id.button);
        button.setText(btnBack);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });

        AdRequest adRequest = new AdRequest.Builder().build();
        RewardedAd.load(this, "ca-app-pub-3940256099942544/5224354917",
                adRequest, new RewardedAdLoadCallback() {
                    @Override
                    public void onAdFailedToLoad(@NonNull LoadAdError loadAdError) {
                        // Handle the error.
                        Log.d(TAG, loadAdError.toString());
                        mRewardedAd = null;
                        //顯示失敗,可以返回主選單
                        adsFail();
                    }

                    @Override
                    public void onAdLoaded(@NonNull RewardedAd rewardedAd) {
                        //正常步驟 1.
                        //載入廣告
                        mRewardedAd = rewardedAd;
                        Log.d(TAG, "Ad was loaded.");
                        //開始廣告播放及監聽
                        adsShow();
                    }
                });
    }

    //開始廣告播放及監聽
    void adsShow(){
        if (mRewardedAd != null) {
            Activity activityContext = MainActivity2.this;

            mRewardedAd.setFullScreenContentCallback(new FullScreenContentCallback() {
                //使用者按下廣告
                @Override
                public void onAdClicked() {
                    // Called when a click is recorded for an ad.
                    Log.d(TAG, "Ad was clicked.");
                }

                //正常步驟 5.
                //使用者關閉視窗
                @Override
                public void onAdDismissedFullScreenContent() {
                    // Called when ad is dismissed.
                    // Set the ad reference to null so you don't show the ad a second time.
                    Log.d(TAG, "Ad dismissed fullscreen content.");
                    mRewardedAd = null;
                    finish();
                }

                @Override
                public void onAdFailedToShowFullScreenContent(AdError adError) {
                    // Called when ad fails to show.
                    Log.e(TAG, "Ad failed to show fullscreen content.");
                    mRewardedAd = null;
                    //顯示失敗,可以返回主選單
                    adsFail();
                }

                //正常步驟 3.
                //廣告展示撥放
                @Override
                public void onAdImpression() {
                    // Called when an impression is recorded for an ad.
                    Log.d(TAG, "Ad recorded an impression.");
                }

                //正常步驟 2.
                //顯示廣告視窗
                @Override
                public void onAdShowedFullScreenContent() {
                    // Called when ad is shown.
                    Log.d(TAG, "Ad showed fullscreen content.");
                }
            });

            mRewardedAd.show(activityContext, new OnUserEarnedRewardListener() {
                //正常步驟 4.
                //使用者獲得獎勵
                @Override
                public void onUserEarnedReward(@NonNull RewardItem rewardItem) {
                    // Handle the reward.
                    Log.d(TAG, "The user earned the reward.");
                    int rewardAmount = rewardItem.getAmount();
                    String rewardType = rewardItem.getType();
                }
            });
        } else {
            Log.d(TAG, "The rewarded ad wasn't ready yet.");
            //顯示失敗,可以返回主選單
            adsFail();
        }
    }

    //顯示失敗,可以返回主選單
    void adsFail(){
        textView.setText(adsFail);
        button.setVisibility(View.VISIBLE);
    }
}

以下是實際使用的畫面