How to add progress bar in webview

ADD PROGRESS BAR IN WEBVIEW:

In this chapter,i explained how to add progress bar in webview which shows when website is loading and hides when webview is finished,simple way to add an progress bar in webview is explained here,android webview progress bar setup is very simple,to show progress bar while loading the url follow these steps:

androidmanifest.xml:

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

add these line above <application> tag

this gives the user permission to load any url on your android application

activity_main.xml:

add these line to add an progress bar in your android application

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ProgressBar
        android:id="@+id/progressBar"
        style="?android:attr/progressBarStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:layout_editor_absoluteX="33dp"
        tools:layout_editor_absoluteY="200dp"
        android:layout_centerHorizontal="true"/>

    <WebView
        android:id="@+id/webView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_below="@id/progressBar">

    </WebView>
</RelativeLayout>

</RelativeLayout>



MainActivity.xml:

public class MainActivity extends Activity{
    private ProgressBar progressBar;
    @SuppressLint("SetJavaScriptEnabled")
    @Override    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);
        progressBar.setVisibility(View.GONE);
        WebView webView = (WebView) findViewById(R.id.webView);
        webView.setWebViewClient(new WebViewClientDemo());
        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl("http://www.google.com");
    }
    private class WebViewClientDemo extends WebViewClient {
        @Override        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
        @Override        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            progressBar.setVisibility(View.GONE);
            progressBar.setProgress(100);
        }
        @Override        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            progressBar.setVisibility(View.VISIBLE);
            progressBar.setProgress(0);
        }
    }
}

NOTE: IF it shows red line on any of code lines click that text 
and press ALT+ENTER

This will add a progress bar into your android application

check video tutorial:

how to add progress bar  in android studio project