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="https://schemas.android.com/apk/res/android" xmlns:tools="https://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("https://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="https://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