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How can I encode a URL in Android?
This example demonstrates how do I can encode a URL 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="4dp" tools:context=".MainActivity"> <WebView android:id="@+id/webView" android:layout_width="match_parent" android:layout_height="match_parent"/> <Button android:id="@+id/btnEncode" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Load URL" android:layout_alignParentBottom="true" android:layout_alignParentEnd="true" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.java
import androidx.appcompat.app.AppCompatActivity; import android.graphics.Bitmap; import android.os.Bundle; import android.view.View; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.Button; import android.widget.Toast; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; public class MainActivity extends AppCompatActivity { Button button; private WebView webView; String strURL; private String query; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); webView = findViewById(R.id.webView); button = findViewById(R.id.btnEncode); strURL = "http://stackoverflow.com/search?q="; try { query = URLEncoder.encode("android drawables", "UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } strURL += query; button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { webView.setWebViewClient(new WebViewClient() { @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { } @Override public void onPageFinished(WebView view, String url) { Toast.makeText(getApplicationContext(), "Page Loaded.", Toast.LENGTH_SHORT).show(); } }); webView.getSettings().setJavaScriptEnabled(true); webView.loadUrl(strURL); } }); } }
Step 4 − Add the following code to androidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <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 the android studio, open one of your project's activity files and click 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.
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