【Unity与Android】02-在Unity导出的Android工程中接入Google AdMob广告

我在上一篇文章 【Unity与Android】01-Unity与Android交互通信的简易实现) 中介绍了Unity与Android通讯的基本方法。

这一篇开始进入应用阶段，这次要介绍的是如何在Android工程中接入Google的AdMob。

 

关于AdMob

AdMob是Google的一个广告平台，现在市面上（国外）的大部分免费游戏都是靠接入AdMob广告赚钱。

Ad 20c4 Mob提供了iOS,Android,Unity以及Cocos四大平台的SDK。

如果想在Unity游戏中接入AdMob，最快的方法是使用Google提供的GoogleMobileAdsPlugin.unitypackage。这个插件可以在Unity Assets Store中找到，也可以去github上下载，地址

https://github.com/googleads/googleads-mobile-unity。

鉴于Unity制作的移动端游戏最终还是会被转换为Android应用和iOS应用，所以为Unity游戏接入广告也可以在Android端和iOS端进行。

本文要介绍的就是如何在Android端为Unity游戏接入AdMob广告。

 

广告类型

AdMob提供的广告有四种类型：横幅广告（Banner Ads）、插页式广告（Interstitial Ads）、激励广告（Rewarded Video Ads）和原生广告（Native Ads）。

横幅广告：

横幅广告是在应用布局中占据一处位置的矩形图片或文字广告。用户与应用互动时，这类广告会停留在屏幕上，并且可在一段时间后自动刷新。

插页式广告：

插页式广告是全屏广告，它会覆盖其托管应用的整个界面。这些广告通常会在应用流程的自然过渡点（例如活动之间或游戏关卡之间的暂停时段）展示。当应用展示插页式广告时，用户可以选择点按广告，访问其目标网址，也可以将其关闭，返回应用。

激励广告：

激励广告是全屏视频广告，用户选择观看视频，以换取应用内奖励。

原生广告：

原生广告是通过平台原生的UI组件呈现给用户的广告，比如微博、JD等软件启动时显示的广告。

 

这几种类型的广告，横幅、插页、激励广告在游戏中都比较常用。

下面将一一介绍这几种广告的接法（原生广告通常用的较少，且制作有点复杂，这里就不细述了，有需要的可以去AdMob的网站查看相关教程）。

 

一、准备工作

 1、创建一个Unity项目。

该项目上只设一个场景，场景中放三个按钮，用于发起对广告的调用。如下图

 

/**---------------激励视频监听实现 begin-------------------*/
@Override
public void onRewardedVideoAdLoaded() {
Toast.makeText(this, "onRewardedVideoAdLoaded", Toast.LENGTH_SHORT).show();
showRewardedVideoAd();
}

@Override
public void onRewardedVideoAdOpened() {
Toast.makeText(this, "onRewardedVideoAdOpened", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoStarted() {
Toast.makeText(this, "onRewardedVideoStarted", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdClosed() {
Toast.makeText(this, "onRewardedVideoAdClosed", Toast.LENGTH_SHORT).show();

// Load the next rewarded video ad.
loadRewardedVideoAd();
}

@Override
public void onRewarded(RewardItem reward) {
Toast.makeText(this, "onRewarded! currency: " + reward.getType() + "  amount: " +
reward.getAmount(), Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdLeftApplication() {
Toast.makeText(this, "onRewardedVideoAdLeftApplication",
Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdFailedToLoad(int i) {
Toast.makeText(this, "onRewardedVideoAdFailedToLoad", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoCompleted() {
Toast.makeText(this, "onRewardedVideoCompleted", Toast.LENGTH_SHORT).show();
}
/**---------------激励视频监听实现 end-------------------*/

激励视频监听实现的代码 其中，我在广告加载完成后进行了对showRewardedVideoAd的调用以显示广告。并在视频广告关闭后进行了重新加载。

6、依照banner和插页广告的做法，在onCreate方法中添加对rewardedVideoAdInit的调用，代码如下：

//激励视频（Rewarded Video）广告初始化
// Sample AdMob interstitial ad id: ca-app-pub-3940256099942544/5224354917
rewardedVideoAdInit("ca-app-pub-3940256099942544/5224354917");
//预加载视频
loadRewardedVideoAd();

在rewardedVideoAdInit之后还需要调用loadRewardedVideoAd以便让广告视频可以提前加载。

7、测试。

重新运行项目，等待模拟器上app启动后，能看到一个7秒的视频广告显示。

package com.tan.admob;

import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;
import com.google.android.gms.ads.r
576
eward.RewardItem;
import com.google.android.gms.ads.reward.RewardedVideoAd;
import com.google.android.gms.ads.reward.RewardedVideoAdListener;
import com.unity3d.player.*;
import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.print.PrintAttributes;
import android.util.Log;
import android.view.Gravity;
i
ae4
mport android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

public class UnityPlayerActivity extends Activity implements RewardedVideoAdListener {
protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code

//激励视频广告
private RewardedVideoAd rewardedVideoAd;
//激励视频广告Id
private  String rewardVidewAdUnitId;

// Setup activity layout
@Override protected void onCreate(Bundle savedInstanceState)
{
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);

mUnityPlayer = new UnityPlayer(this);
setContentView(mUnityPlayer);
mUnityPlayer.requestFocus();

576
/*
// MobileAds初始化的方法1，有监听，无法设置appId ；appId可以在AndroidManifest.xml中设置
// AdMob Init
MobileAds.initialize(this, new OnInitializationCompleteListener() {
@Override
public void onInitializationComplete(InitializationStatus initializationStatus) {
Log.i("AdMob", "-----Admob初始化完成");
}
});
*/

//MobileAds初始化的方法2，可以指定appId；当AndroidManifest中也设置了appId时，以AndroidManifest为准
// Sample AdMob App ID: ca-app-pub-3940256099942544~3347511713
MobileAds.initialize(this, "ca-app-pub-3940256099942544~3347511713");//测试用的AppId

//横幅（banner）广告初始化
// Sample AdMob banner ad id: ca-app-pub-3940256099942544/6300978111

576
bannerAdInit("ca-app-pub-3940256099942544/6300978111", AdSize.BANNER);

//插页（interstitial）广告初始化
// Sample AdMob interstitial ad id: ca-app-pub-3940256099942544/1033173712
interstitialAdInit("ca-app-pub-3940256099942544/1033173712");

//激励视频（Rewarded Video）广告初始化
// Sample AdMob interstitial ad id: ca-app-pub-3940256099942544/5224354917
rewardedVideoAdInit("ca-app-pub-3940256099942544/5224354917");
//预加载视频
loadRewardedVideoAd();
}

/**
* banner广告初始化
* @param adUnitId  广告id
* @param siz
aec
e 广告尺寸
*/
private  void bannerAdInit (String adUnitId, AdSize size) {
//创建广告视图
AdView bannerAdView = new AdView(this);
//设置广告尺寸
bannerAdView.setAdSize(size);
//设置广告ID
bannerAdView.setAdUnitId(adUnitId);
//请求广告
AdRequest adRequest = new AdRequest.Builder().build();
bannerAdView.loadAd(adRequest);
//添加监听
bannerAdView.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
Log.i("BannerAd", "banner广告加载完成");
}

@Override
public void onAdFailedToLoad(int errCode) {
Log.i("BannerAd", "banner广告加载失败, err_code:" + errCode);
}

@Override
public void onAdOpened() {
Log.i("BannerAd", "banner广告被打开");
}
});

//声明一个布局参数（MATCH_PARENT为填充父级,WRAP_CONTENT为包裹内容）
FrameLayout.LayoutParams fllp = new FrameLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);

//设置布局对齐方式为：垂直对齐到底，水平居中
fllp.gravity = Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL;

//添加到View
addContentView(bannerAdView, fllp);
}

/**
* 插页广告初始化
* @param adUnitId 广告id
*/
private void interstitialAdInit (String adUnitId) {
InterstitialAd interstitialAd = new InterstitialAd(this);

interstitialAd.setAdUnitId(adUnitId);

interstitialAd.loadAd(new AdRequest.Builder().build());

Log.i("interstitalAd", "is Loaded:" + interstitialAd.isLoaded());

interstitialAd.setAdListener(new AdListener() {
@Override
public void onAdClosed() {
super.onAdClosed();
Log.i("interstitalAd", "插页广告被关闭");

// Load the next interstitial.
//interstitialAd.loadAd(new AdRequest.Builder().build());
}

@Override
public void onAdLoaded() {
super.onAdLoaded();
Log.i("interstitalAd", "插页广告加载完成");

interstitialAd.show();
}
});
}

/**
* 激励视频（Rewarded Video）广告初始化
*/
private void rewardedVideoAdInit (String adUnitId) {
// Use an activity context to get the rewarded video instance.
rewardedVideoAd = MobileAds.getRewardedVideoAdInstance(this);

rewardedVideoAd.setRewardedVideoAdListener(this);

rewardVidewAdUnitId = adUnitId;
}

//加载激励视频
private void loadRewardedVideoAd() {
rewardedVideoAd.loadAd(rewardVidewAdUnitId, new AdRequest.Builder().build());
}

//显示激励视频
public void showRewardedVideoAd() {
if (rewardedVideoAd.isLoaded()) {
rewardedVideoAd.show();
} else {
Toast.makeText(this, "video is not ready.", Toast.LENGTH_SHORT);
}
}

@Override protected void onNewIntent(Intent intent)
{
// To support deep linking, we need to make sure that the client can get access to
// the last sent intent. The clients access this through a JNI api that allows them
// to get the intent set on launch. To update that after launch we have to manually
// replace the intent with the one caught here.
setIntent(intent);
}

// Quit Unity
@Override protected void onDestroy ()
{
mUnityPlayer.destroy();
super.onDestroy();
}

// Pause Unity
@Override protected void onPause()
{
super.onPause();
mUnityPlayer.pause();
}

// Resume Unity
@Override protected void onResume()
{
super.onResume();
mUnityPlayer.resume();
}

@Override protected void onStart()
{
super.onStart();
mUnityPlayer.start();
}

@Override
576
protected void onStop()
{
super.onStop();
mUnityPlayer.stop();
}

// Low Memory Unity
@Override public void onLowMemory()
{
super.onLowMemory();
mUnityPlayer.lowMemory();
}

// Trim Memory Unity
@Override public void onTrimMemory(int level)
{
super.onTrimMemory(level);
if (level == TRIM_MEMORY_RUNNING_CRITICAL)
{
mUnityPlayer.lowMemory();
}
}

// This ensures the layout w
ae4
ill be correct.
@Override public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
mUnityPlayer.configurationChanged(newConfig);
}

// Notify Unity of the focus change.
@Override public void onWindowFocusChanged(boolean hasFocus)
{
super.onWindowFocusChanged(hasFocus);
mUnityPlayer.windowFocusChanged(hasFocus);
}

// For some reason the multiple keyevent type is not supported by the ndk.
// Force event injection by overriding dispatchKeyEvent().
@Override public boolean dispatchKeyEvent(KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
return mUnityPlayer.injectEvent(event);
return super.dispatchKeyEvent(event);
}

// Pass any events not handled by (unfocused) views straight to UnityPlayer
@Override public boolean onKeyUp(int keyCode, KeyEvent event)     { return mUnityPlayer.injectEvent(event); }
@Override public boolean onKeyDown(int keyCode, KeyEvent event)   { return mUnityPlayer.injectEvent(event); }
@Override public boolean onTouchEvent(MotionEvent event)          { return mUnityPlayer.injectEvent(event); }
/*API12*/ public boolean onGenericMotionEvent(MotionEvent event)  { return mUnityPlayer.injectEvent(event); }

/**---------------激励视频监听实现 begin-------------------*/
@Override
public void onRewardedVideoAdLoaded() {
Toast.makeText(this, "onRewardedVideoAdLoaded", Toast.LENGTH_SHORT).show();
showRewardedVideoAd();
}

@Override
public void onRewardedVideoAdOpened() {
Toast.makeText(this, "onRewardedVideoAdOpened", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoStarted() {
Toast.makeText(this, "onRewardedVideoStarted", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdClosed() {
Toast.makeText(this, "onRewardedVideoAdClosed", Toast.LENGTH_SHORT).show();

// Load the next rewarded video ad.
loadRewardedVideoAd();
}

@Override
public void onRewarded(RewardItem reward) {
Toast.makeText(this, "onRewarded! currency: " + reward.getType() + "  amount: " +
reward.getAmount(), Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdLeftApplication() {
Toast.makeText(this, "onRewardedVideoAdLeftApplication",
Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoAdFailedToLoad(int i) {
Toast.makeText(this, "onRewardedVideoAdFailedToLoad", Toast.LENGTH_SHORT).show();
}

@Override
public void onRewardedVideoCompleted() {
Toast.makeText(this, "onRewardedVideoCompleted", Toast.LENGTH_SHORT).show();
}
/**---------------激励视频监听实现 end-------------------*/

}

View Code build.gradle

// GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN

buildscript {
repositories {
google()
jcenter()
}

dependencies {
classpath 'com.android.tools.build:gradle:3.2.0'
}
}

allprojects {
repositories {
google()
jcenter()
flatDir {
dirs 'libs'
}
}
}

apply plugin: 'com.android.application'

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.google.android.gms:play-services-ads:18.2.0'
}

android {
compileSdkVersion 29
buildToolsVersion '29.0.2'

compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}

defaultConfig {
minSdkVersion 16
targetSdkVersion 29
applicationId 'com.tan.admob'
ndk {
abiFilters 'armeabi-v7a', 'x86'
}
versionCode 1
versionName '0.1'
}

lintOptions {
abortOnError false
}

aaptOptions {
noCompress = ['.unity3d', '.ress', '.resource', '.obb']
}

buildTypes {
debug {
minif
1062
yEnabled false
useProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'
jniDebuggable true
}
release {
minifyEnabled false
useProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'
signingConfig signingConfigs.debug
}
}

packagingOptions {
doNotStrip '*/armeabi-v7a/*.so'
doNotStrip '*/x86/*.so'
}

bundle {
language {
enableSplit = false
}
density {
enableSplit = false
}
abi {
enableSplit = true
}
}
}

View Code

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.tan.admob" xmlns:tools="http://schemas.android.com/tools" android:installLocation="preferExternal">
<supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:
20bc
anyDensity="true" />
<application android:theme="@style/UnityThemeSelector" android:icon="@mipmap/app_icon" android:label="@string/app_name" android:isGame="true" android:banner="@drawable/app_banner">
<activity android:label="@string/app_name" android:screenOrientation="fullSensor" android:launchMode="singleTask" android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale|layoutDirection|density" android:hardwareAccelerated="false" android:name="com.tan.admob.UnityPlayerActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
<meta-data android:name="unity.build-id" android:value="fea8e2f2-427d-4c46-a8ec-f06bef433231" />
<meta-data android:name="unity.splash-mode" android:value="0" />
<meta-data android:name="unity.splash-enable" android:value="True" />

<!-- 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-3940256099942544~3347511713"/>

</application>
<uses-feature android:glEsVersion="0x00020000" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-feature android:name="android.hardware.touchscreen" android:required="false" />
<uses-feature android:name="android.hardware.touchscreen.multitouch" android:required="false" />
<uses-feature android:name="android.hardware.touchscreen.multitouch.distinct" android:required="false" />
</manifest>

View Code