Calling one Activity from Another Activity

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Package name :   selva.activity

Project name   :   callingactivity

Version            :   1.5 ( support 1.5 and above versions)

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click to move next Activity" />

</LinearLayout>

 activity2.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" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="This is Activity 2!"
        android:textColor="#00ff00"
        android:textSize="30px"/>

    <Button
        android:id="@+id/buttonprev"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click to move previous Activity" />

</LinearLayout>

  CallingactivityActivity.java

package selva.activity;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
public class CallingactivityActivity extends Activity
{
String tag = "Events";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

     setContentView(R.layout.main);
      Log.d(tag, "In the onCreate() event");
     
      Button btn=(Button) findViewById(R.id.button1);
     
     
      btn.setOnClickListener(new View.OnClickListener() {
       
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent i=new Intent(CallingactivityActivity.this,Anotheractivity.class);
            startActivity(i);
           
        }
    });
     
}
      
     

}
 

  Anotheractivity.java

package selva.activity;


import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class Anotheractivity extends Activity {
String tag = "Events";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity2);


Button btn=(Button) findViewById(R.id.buttonprev);


btn.setOnClickListener(new View.OnClickListener() {
   
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        Intent i=new Intent(Anotheractivity.this,CallingactivityActivity.class);
        startActivity(i);
       
    }
});
}
}

OUTPUT:

Click Here to download source code