How to display progress while loading a url to webview in android?

Question

How to display progress while loading a url to webview in android?

AndroidMobile DevelopmentApps/Applications

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This example demonstrates how to display progress while loading a url to webview in android.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?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"
   android:padding="2dp"
   tools:context=".MainActivity">
<ProgressBar android:id="@+id/progressBar"
style="?android:attr/progressBarStyleLarge"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_alignParentTop="true"
   android:layout_centerInParent="true"
   android:max="3" android:progress="100" />
<WebView android:id="@+id/webView"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:layout_below="@+id/progressBar"
   android:layout_centerHorizontal="true"
   android:layout_marginTop="5dp" />
</RelativeLayout>

Step 3 − Add the following code to src/MainActivity.kt

import android.os.Bundle
import android.view.View
import android.webkit.WebView
import android.widget.ProgressBar
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
   lateinit var webView: WebView
   lateinit var progressBar: ProgressBar
   override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)
      title = "KotlinApp"
      webView = findViewById(R.id.webView)
      progressBar = findViewById(R.id.progressBar)
      webView.webViewClient = WebViewClient()
      webView.loadUrl("http://www.amazon.com")
   }
   inner class WebViewClient : android.webkit.WebViewClient() {
      override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
         view.loadUrl(url) return false
      }
      override fun onPageFinished(view: WebView, url: String) {
          super.onPageFinished(view, url)
          progressBar.visibility = View.GONE
      }
   }
}

Step 4 Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.q11">
<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:name=".MainActivity">
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run icon  from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen.

Click here to download the project code.

Azhar

Published on 30-Sep-2020 12:54:12

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