Blundell

By blundell 　http://blog.blundell-apps.com/button-to-open-web-browser/

Someone requested this so here goes:

If you want to send someone to a website when they press a button in your activity:

MainActivity class:

package com.blundell.twitterlink;
 
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
 
public class Main extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main); //Set the screen's view to your xml file
       
       
        Button twitterButton = (Button) findViewById(R.id.twitterButton); // Retrieve the button from the XML file
        twitterButton.setOnClickListener(new View.OnClickListener() {  //Add a listener for when the button is pressed
                        @Override
                        public void onClick(View v) {
                                sendToTwitter();                       
                        }
                });
    }
 
        protected void sendToTwitter() {
                String url = "http://twitter.com/blundell_apps"; // You could have this at the top of the class as a constant, or pass it in as a method variable, if you wish to send to multiple websites
                Intent i = new Intent(Intent.ACTION_VIEW); // Create a new intent - stating you want to 'view something'
                i.setData(Uri.parse(url));  // Add the url data (allowing android to realise you want to open the browser)
                startActivity(i); // Go go go!
        }
}

And your XML layout:
Main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   >
    <Button
        android:id="@+id/twitterButton"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Send me to Twitter"
            />
</LinearLayout>

As always, enjoy!