java - 如何在 Activity 中加载插页式广告并在另一个 Activity 中显示？

Question

我想在 Activity 中加载插页式广告并在另一个 Activity 中显示它。我找到了这个主题并尝试执行第一个答案中的步骤，但有很多错误。

How To preload admob interstitial ad and send to another android activity using intent

这就是我所做的:

• 我创建了一个公共(public)类并将其命名为“AdManager”，并将以下代码放入其中:

  `package com.website.test;
  import com.google.android.gms.ads.InterstitialAd;
  
  
  public class AdManager {
  
  // Static fields are shared between all instances.
  static InterstitialAd ad;
  
  public AdManager() {
      createAd();
  }
  
  public void createAd() {
      // Create an ad.
      interstitialAd = new InterstitialAd(this);
      interstitialAd.setAdUnitId("");
  
  AdRequest adRequest = new AdRequest.Builder()
          .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
          .addTestDevice(TEST_DEVICE_ID).build();
  
  // Load the interstitial ad.
  interstitialAd.loadAd(adRequest);
  }
  public InterstitialAd getAd() {
      return ad;}}
  

• 在 A 类的创建事件中，我输入了以下内容:

AdManager adManager = new AdManager(); adManager.createAd();

• 在我想要显示插页式广告的 Activity 的创建事件中，我放置了以下内容:

InterstitialAd ad = admanager.getAd(); if (ad.isLoaded) { 广告.show(); }

但有一些错误，如我所附的图片所示，请告诉我哪里出了问题？

screenshot1

screenshot2

Answer 1

class AdManager {
// Static fields are shared between all instances.
private static InterstitialAd interstitialAd;

private static boolean isInterAdsShowed = false;
private Activity activity;
private String AD_UNIT_ID;

AdManager(Activity activity, String AD_UNIT_ID) {

    this.activity = activity;
    this.AD_UNIT_ID = AD_UNIT_ID;
    createAd();
}

void createAd() {
    // Create an ad.
    interstitialAd = new InterstitialAd(activity);
    interstitialAd.setAdUnitId(AD_UNIT_ID);

    AdRequest adRequest = new AdRequest.Builder()
            //.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
            //.addTestDevice(TEST_DEVICE_ID)
            .build();

    // Load the interstitial ad.
    interstitialAd.loadAd(adRequest);
}

static InterstitialAd getAd() {
    if(interstitialAd != null && interstitialAd.isLoaded() && !isInterAdsShowed) {
        isInterAdsShowed = true;
        return interstitialAd;
    }
    else return null;
}

}

...... Activity A

  AdManager adManager = new AdManager(this,"your ads id");
    adManager.createAd();

.... Activity B

 InterstitialAd ad = AdManager.getAd();
    if (ad != null) {
        ad.show();
    }