Kotlin Android Google AdMob非页内广告示例 KotlinAndroidGoogleAdMob非页内广告

在本教程中, 我们在Android应用程序中实施Google AdMob插页式广告。要将Google AdMob放置在Android应用程序中, 我们需要创建Google广告单元ID。有关创建Google AdMod帐户和生成广告单元ID的完整参考, 请参见Android Google AdMob。
插页式广告是覆盖整个活动布局的全屏广告。该广告显示在活动的过渡点。要在Android应用程序中实现Google AdMob, 请选择Google AdMob广告活动, 然后将广告格式类型选择为插页式广告。
我们还可以将Google AdMob广告放置在其他活动（例如空白活动）上。
在build.gradle文件中添加Google广告依赖项“ com.google.android.gms：play-services-ads：17.0.0”：
build.gradle

dependencies {implementation fileTree(dir: 'libs', include: ['*.jar'])implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"implementation 'com.android.support:appcompat-v7:26.1.0'implementation 'com.google.android.gms:play-services-ads:17.0.0'testImplementation 'junit:junit:4.12'}

activity_main.xml
将你的UI代码添加到activity_main.xml中。 Button组件用于加载广告。

< RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="example.srcmini.com.kotlininterstitialads.MainActivity"> < !-- view for AdMob Interstitial Ad --> < TextViewandroid:id="@+id/app_title"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerHorizontal="true"android:layout_marginTop="50dp"android:text="@string/interstitial_ad_sample"android:textAppearance="?android:attr/textAppearanceLarge" /> < Buttonandroid:id="@+id/load_ad_button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerHorizontal="true"android:layout_centerVertical="true"android:text="@string/load_ad" /> < /RelativeLayout>

strings.xml
在string.xml文件中添加创建的广告单元ID。

< resources> < string name="app_name"> KotlinInterstitialAds< /string> < string name="action_settings"> Settings< /string> < string name="interstitial_ad_sample"> Interstitial Ad Sample< /string> < string name="load_ad"> Load Ad< /string> < !-- -This is an ad unit ID for an interstitial test ad. Replace with your own interstitial ad unit id.--> < string name="interstitial_ad_unit_id"> ca-app-pub-3940256099942544/1033173712< /string> < /resources>

MainActivity.kt
在MainActivity.kt类中添加以下代码。要将广告加载到UI上, 请创建InterstitialAd实例, 然后在InterstitialAd interstitialAd.adUnitId = getString（R.string.interstitial_ad_unit_id）上初始化广告单元ID。
【Kotlin Android Google AdMob非页内广告示例】覆盖InterstitialAd监听器onAdLoaded(), onAdFailedToLoad(), onAdClosed。要在点击按钮时加载广告, 请创建AdRequest实例, 然后通过调用InterstitialAd !!。loadAd（AdRequest）加载广告。

package example.srcmini.com.kotlininterstitialadsimport com.google.android.gms.ads.AdListenerimport com.google.android.gms.ads.AdRequestimport com.google.android.gms.ads.InterstitialAdimport android.os.Bundleimport android.support.v7.app.AppCompatActivityimport android.widget.Buttonimport android.widget.Toastclass MainActivity : AppCompatActivity() {private var mLoadAdButton: Button? = nullprivate var mInterstitialAd: InterstitialAd? = nulloverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)setContentView(R.layout.activity_main)// Create the InterstitialAd and set the adUnitId (defined in values/strings.xml).mInterstitialAd = newInterstitialAd()loadInterstitial()// Create the load ad button, tries to show an interstitial when clicked.mLoadAdButton = findViewById(R.id.load_ad_button) as ButtonmLoadAdButton!!.isEnabled = falsemLoadAdButton!!.setOnClickListener {showInterstitial()}}private fun newInterstitialAd(): InterstitialAd {val interstitialAd = InterstitialAd(this)interstitialAd.adUnitId = getString(R.string.interstitial_ad_unit_id)interstitialAd.adListener = object : AdListener() {override fun onAdLoaded() {mLoadAdButton!!.isEnabled = trueToast.makeText(applicationContext, "Ad Loaded", Toast.LENGTH_SHORT).show()}override fun onAdFailedToLoad(errorCode: Int) {mLoadAdButton!!.isEnabled = trueToast.makeText(applicationContext, "Ad Failed To Load", Toast.LENGTH_SHORT).show()}override fun onAdClosed() {// Proceed to the next level.// goToNextLevel()Toast.makeText(applicationContext, "Ad Closed", Toast.LENGTH_SHORT).show()tryToLoadAdOnceAgain()}}return interstitialAd}private fun loadInterstitial() {// Disable the load ad button and load the ad.mLoadAdButton!!.isEnabled = falseval adRequest = AdRequest.Builder().build()mInterstitialAd!!.loadAd(adRequest)}private fun showInterstitial() {// Show the ad if it is ready. Otherwise toast and reload the ad.if (mInterstitialAd != null & & mInterstitialAd!!.isLoaded) {mInterstitialAd!!.show()} else {Toast.makeText(this, "Ad did not load", Toast.LENGTH_SHORT).show()tryToLoadAdOnceAgain()}}private fun tryToLoadAdOnceAgain() {mInterstitialAd = newInterstitialAd()loadInterstitial()}}

AndroidManifest.xml
在AndroidManifest.xml文件中添加以下代码：

< ?xml version="1.0" encoding="utf-8"?> < manifest xmlns:android="http://schemas.android.com/apk/res/android"package="example.srcmini.com.kotlininterstitialads"> < !-- Include required permissions for Google Mobile Ads to run. --> < uses-permission android:name="android.permission.INTERNET" /> < uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> < applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher_round"android:supportsRtl="true"android:theme="@style/AppTheme"> < !-- This meta-data tag is required to use Google Play Services. --> < meta-dataandroid:name="com.google.android.gms.version"android:value="http://www.srcmini.com/@integer/google_play_services_version" /> < activityandroid:name=".MainActivity"android:label="@string/app_name"> < intent-filter> < action android:name="android.intent.action.MAIN" /> < category android:name="android.intent.category.LAUNCHER" /> < /intent-filter> < /activity> < !-- Include the AdActivity configChanges and theme. --> < activityandroid:name="com.google.android.gms.ads.AdActivity"android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"android:theme="@android:style/Theme.Translucent" /> < meta-dataandroid:name="com.google.android.gms.ads.AD_MANAGER_APP"android:value="http://www.srcmini.com/true"/> < /application> < /manifest>

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