How to add splash screen in web view app 

Just follow the steps told in the video

Copy and paste all the codes of  SplashActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Window;

import android.view.WindowManager;

public class SplashActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        Window window = getWindow() ;

        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

        setContentView(R.layout.activity_splash);

        Thread splashTread = new Thread(){

            @Override

            public void run() {

                try {

                    sleep(3000);

                    startActivity(new Intent(getApplicationContext(),MainActivity.class));

                    finish();

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }

                super.run();

            }

        };

        splashTread.start();

    }

}

paste these codes in activity_splash

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

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

    xmlns:app="http://schemas.android.com/apk/res-auto"

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".SplashActivity">

    <ImageView

        android:layout_width="match_parent"

        android:layout_height="300dp"

        android:src="@drawable/fizz_blogging"

        android:scaleType="centerCrop"

        android:padding="50dp"

        android:layout_marginTop="20dp"/>

    <ProgressBar

        android:layout_width="220dp"

        android:layout_height="10dp"

        android:layout_gravity="center_horizontal"

        style="?android:attr/progressBarStyleHorizontal"

        android:max="100"

        android:indeterminate="true"

        android:progress="0"

        android:layout_marginTop="300dp"

        />

</LinearLayout> 

Paste these codes in manifest 

<activity android:name=".SplashActivity">

            <intent-filter>

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

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

            </intent-filter>

        </activity>

Thx