Android keyboard overlaps Activity Webview, how to auto resize?

Question

Android

Here is my manifest.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="ru.pro.anonymouschat">

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


    <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">


        <activity

            android:windowSoftInputMode="adjustResize"
            android:name=".MainActivity">


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



                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

For some reason, android:windowSoftInputMode="adjustResize" doesn't work?
An example of stopping a WebView with a keyboard ..

What to prescribe so that AutoResaize Activity works when the keyboard leaves?