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I am trying to display the Google map on Android. When I load the activity i get a grey screen with the Google logo displayed in the bottom left corner. This happens using the virtual emulator and on a real device too. I have tried using a different Api key but get the same problem. I am using the Map activity provided by Android studio.

build.gradle(Module:app)

apply plugin: 'com.android.application'

apply plugin: 'com.google.gms.google-services'



android {

    compileSdkVersion 28

    defaultConfig {



        minSdkVersion 19

        targetSdkVersion 28

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

}



dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.android.support:appcompat-v7:28.0.0'

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:runner:1.0.2'

    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    implementation 'com.google.firebase:firebase-auth:16.1.0'

    implementation 'com.google.firebase:firebase-database:16.0.1'

    implementation 'com.google.android.gms:play-services-maps:16.0.0'

    implementation 'com.google.android.gms:play-services-location:16.0.0'



}

AndroidManifest.xml

    <?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    package="">



    <uses-feature

        android:name="android.hardware.sensor.stepcounter"

        android:required="true" />

    <uses-feature

        android:name="android.hardware.sensor.stepdetector"

        android:required="true" />



    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="com.google.android.providers.gfs.permission.READ_GSERVICES" />



    <application

        android: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"

        tools:ignore="GoogleAppIndexingWarning">

        <activity android:name=".Activities.LandingActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />



                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <activity android:name=".UserAccountActivities.ProfileActivity" />



        <meta-data

            android:name="com.google.android.geo.API_KEY"

            android:value="redacted" />



        <activity

            android:name=".Activities.MapsActivity"

            android:label="@string/title_activity_maps" />

    </application>



</manifest>

Logcat in Error mode

01-02 15:06:24.913 17090-17160/E/Google Maps Android API: Authorization failure.  Please see https://developers.google.com/maps/documentation/android-api/start for how to correctly set up the map.

01-02 15:06:24.923 17090-17160/ E/Google Maps Android API: In the Google Developer Console (https://console.developers.google.com)

    Ensure that the "Google Maps Android API v2" is enabled.

    Ensure that the following Android Key exists:

        API Key: ***

        Android Application (<cert_fingerprint>;<package_name>): ***;

go to Google console and try to enable maps sdk for android...

try to change the hardware-sensors to not required:

<uses-feature

    android:name="android.hardware.sensor.stepcounter"

    android:required="false"/>



<uses-feature

    android:name="android.hardware.sensor.stepdetector"

    android:required="false"/>

and also this permission is not required anymore, for years:

<uses-permission android:name="com.google.android.providers.gfs.permission.READ_GSERVICES" />

and the problem actually stems from:

apply plugin: "com.google.gms.google-services"

which has to be moved to the very bottom of the file.