What is a Activity?

Activity

The activity is a user interface. Your project Src / directory based upon the java package you used when you created the project (com.yourpackgename.myapp).

the root à src/packge/Myactivity.java .

package com.example.addgooglemap;

import android.app.Activity;

import android.os.Bundle;

public class MyActivity extends Activity{

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              // TODO Auto-generated method stub

              super.onCreate(savedInstanceState);

       

 // set user interface

              setContentView(R.layout. my_activity);

       }

}

User interface inside  res/Layout/my_activity.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" >

   

</LinearLayout>