Android URL Display and Open Example

 

Android URL Display and Open Example

This Android application allows users to enter a URL, display it on a TextView, and open it in a web browser using an Intent.

XML Layout File (activity_p22_bca.xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    android:padding="24dp"
    android:background="#F3F4F6">

    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter URL (https://)"
        android:inputType="textUri"
        android:importantForAutofill="no"
        android:layout_marginBottom="16dp"
        android:padding="12dp"
        android:background="@drawable/edittext_background"/>

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Display URL"
        android:backgroundTint="#3498db"
        android:textColor="#ffffff"
        android:layout_marginBottom="24dp"/>

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="URL will appear here"
        android:textSize="18sp"
        android:textColor="#2c3e50"
        android:gravity="center"
        android:padding="16dp"/>

    <Button
        android:id="@+id/websiteButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Open in Browser"
        android:backgroundTint="#2ecc71"
        android:textColor="#ffffff"/>

</LinearLayout>
    

Java Code (P22BCA.java)

// Package declaration
package com.vipul.p6;

// Import statements
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;

// Main activity class
public class P22BCA extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_p22_bca);

        // Initialize UI components
        EditText editText = findViewById(R.id.editText);
        Button btnDisplay = findViewById(R.id.button);
        TextView textView = findViewById(R.id.textView);
        Button btnOpenBrowser = findViewById(R.id.websiteButton);

        // Display URL button click handler
        btnDisplay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String url = editText.getText().toString().trim();
                if (!url.isEmpty()) {
                    textView.setText(url);
                } else {
                    editText.setError("Please enter a URL");
                }
            }
        });

        // Open browser button click handler
        btnOpenBrowser.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String url = editText.getText().toString().trim();
                if (url.isEmpty()) {
                    Toast.makeText(P22BCA.this, 
                        "Please enter a URL first", 
                        Toast.LENGTH_SHORT).show();
                    return;
                }

                if (!url.startsWith("http://") && !url.startsWith("https://")) {
                    url = "https://" + url;
                }

                Intent browserIntent = new Intent(
                    Intent.ACTION_VIEW,
                    Uri.parse(url)
                );
                
                if (browserIntent.resolveActivity(getPackageManager()) != null) {
                    startActivity(browserIntent);
                } else {
                    Toast.makeText(P22BCA.this,
                        "No browser app found",
                        Toast.LENGTH_SHORT).show();
                }
            }
        });
    }
}
    

Explanation

• XML Layout: Defines UI elements - EditText, Buttons, and TextView.
• Java Code: Handles user interaction, fetching text from EditText, displaying it in TextView, and opening it using an Intent.
• Intent: Used to open the entered URL in a browser.
• Toast Message: Displays a message if the URL field is empty.