H5页面调用admob激励视频，用户获取奖励
应用前提条件
- 使用 Android Studio 3.2 或更高版本
-
确保您应用的 build 文件使用以下值：
minSdkVersion为16或更高版本compileSdkVersion为28或更高版本
1，在您的项目级 build.gradle 文件中，同时在 buildscript 和 allprojects 两个部分中添加
buildscript {
repositories {
google()
mavenCentral()
}
}
allprojects {
repositories {
google()
mavenCentral()
}
}
2，将 Google 移动广告 SDK 的依赖项添加到您的模块的应用级
dependencies { implementation 'com.google.android.gms:play-services-ads:21.0.0' }
3，将您的 AdMob 应用 ID（
测试ID：ca-app-pub-3940256099942544~3347511713
注意：开发工程一定要使用测试ID，不要使用线上ID，否则可能导致线上admob广告流量无效，最严重导致封号！
<manifest>
<application>
<!-- Sample AdMob app ID: ca-app-pub-3940256099942544~3347511713 -->
<meta-data
android:name="com.google.android.gms.ads.APPLICATION_ID"
android:value="ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy"/>
</application>
</manifest>
4，初始化广告和预加载激励视频
import com.google.android.gms.ads.MobileAds; import com.google.android.gms.ads.initialization.InitializationStatus; import com.google.android.gms.ads.initialization.OnInitializationCompleteListener; public class MainActivity extends AppCompatActivity { private AdRequest adRequest; private Handler mHandler; private WebView webview; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); MobileAds.initialize(this, new OnInitializationCompleteListener() { @Override public void onInitializationComplete(InitializationStatus initializationStatus) { } }); adRequest = new AdRequest.Builder().build(); loadJiliAd(); //ad必须在主线程上，使用消息通知调用 mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 0: // 显示广告 showJiliad(); break; case 1: //测试加载js webview.loadUrl("javascript:test()"); break; default: break; } } }; //加载页面 showWeb(); } private void showJiliad(){ if (mRewardedAd != null) { Activity activityContext = this; mRewardedAd.show(activityContext, new OnUserEarnedRewardListener() { @Override public void onUserEarnedReward(@NonNull RewardItem rewardItem) { // 用户获得奖励 Log.d("TAG", "The user earned the reward."); int rewardAmount = rewardItem.getAmount(); String rewardType = rewardItem.getType(); showJiangli("恭喜获得奖励"); } }); }else{ showJiangli("广告拉取中，请稍候再试"); loadJiliAd(); } } private void showJiangli(String msg){ Toast.makeText(this,msg,Toast.LENGTH_SHORT).show(); } private void showWeb(){ //实例化WebView对象 webview = new WebView(this); //设置WebView属性，能够执行Javascript脚本 WebSettings webSettings = webview.getSettings(); webSettings.setJavaScriptEnabled(true); //加载页面 webview.loadUrl("//xxx.com/"); //WebAppInterface 是我们自定义的一个类，通过实例化一个WebAppInterface 对象来和html进行绑定 WebAppInterface webAppInterface = new WebAppInterface(this,mHandler); webview.addJavascriptInterface(webAppInterface, "Android"); webview.setWebViewClient(new WebViewClient(){ @Override public boolean shouldOverrideUrlLoading(WebView view, String url){ view.loadUrl(url); return true; } }); webview.setWebViewClient(new WebViewClient() { Random ra =new Random(); int r = ra.nextInt(20) + 1 ; @Override public void onPageFinished(WebView view, String url) { //结束 super.onPageFinished(view, url); Log.d("TAG", "加载结束"); if(r == 10){ showAD(); } } @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { //开始 super.onPageStarted(view, url, favicon); Log.d("TAG", "加载开始"); num ++; if(r == 6){ if (mInterstitialAd != null) { showAD(); } }else if(num >= 6){ if (mInterstitialAd != null) { num =0; showAD(); }else{ Log.d("TAG", "广告未加载成功"); } } Log.d("TAG", "加载NUM:" + String.valueOf(num)); } }); private void loadJiliAd(){ 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; } @Override public void onAdLoaded(@NonNull RewardedAd rewardedAd) { mRewardedAd = rewardedAd; Log.d("TAG", "Ad was loaded."); mRewardedAd.setFullScreenContentCallback(new FullScreenContentCallback() { @Override public void onAdClicked() { // 在为广告记录点击时调用。 Log.d("TAG", "Ad was clicked."); } @Override public void onAdDismissedFullScreenContent() { // 当广告被关闭时调用. // 将广告引用设置为 null，这样您就不会再次展示广告。 Log.d("TAG", "Ad dismissed fullscreen content."); mRewardedAd = null; } @Override public void onAdFailedToShowFullScreenContent(AdError adError) { // 广告无法展示时调用 Log.e("TAG", "Ad failed to show fullscreen content."); mRewardedAd = null; } @Override public void onAdImpression() { // 在为广告记录展示时调用 Log.d("TAG", "Ad recorded an impression."); } @Override public void onAdShowedFullScreenContent() { // 显示广告时调用. Log.d("TAG", "Ad showed fullscreen content."); } }); } }); } }
6，webAppInterface类
public class WebAppInterface { Activity mContext; Handler mHandler; /** * Instantiate the interface and set the context */ WebAppInterface(Activity c,Handler r) { mContext = c; mHandler = r; } /** * js调用Android的函数 */ @JavascriptInterface public void startFunction() { Toast.makeText(mContext,"我是安卓原生的弹窗",Toast.LENGTH_SHORT).show(); //调用激励视频广告 Message msg = new Message(); msg.what = 0; mHandler.sendMessage(msg); } /** * js调用Android的函数并给Android原生传递一个参数 */ @JavascriptInterface public void startFunction(String arg) { Toast.makeText(mContext,arg,Toast.LENGTH_SHORT).show(); } }
7，html调用激励奖励
<input type="button" value="点击调用android代码，拉取激励视频" onclick="window.Android.startFunction()"/>
整体流程结束，业务代码可按需自行添加
