Learn Admob integration with Android SDK

Objective

This course provides the detailed steps on integrating the admob library with your android app. When I was integrating admob with my game app Word Puzzle Game I struggled a lot to make the ads live.

I thought of share my experience which helps some one.

Prerequisites

Make sure you have created admob account using https://admob.google.com/ and created app with ad units.

Integration Steps

1. Make sure you have following items in project level build.gradle.

 repositories {
        jcenter()
        google()
    }

dependencies {
        classpath 'com.android.tools.build:gradle:3.6.2'

    }

2. Open your app level build.gradle file and make sure you have following lines.

dependencies {
    implementation 'com.google.android.gms:play-services-ads:19.1.0'

}

3. Verify permissions in android manifest xml file.

 <application
        android:usesCleartextTraffic="true"
        ...
        >
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <!-- 
       Below lines are optional. In logcat I saw the error message from google library 
       that was trying to access bluetooth api so I added below lines.
       Ads started working for me in real device. But it is not guaranteed for your implementation.  -->
    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    

    <!-- Make sure you provided proper app id in the strings file -->
    <meta-data
            android:name="com.google.android.gms.ads.APPLICATION_ID"
            android:value="@string/admob_appid" />

Lets see what are all the steps we need to take care on the layout and java files.