Basic ListActivity Without Layout

Using Android Studio 1.4

1) Create New Project

Application Name: MyListActivityNoLayout1

Select API 14:Android 4.0 (IceCreamSandwich)

Follow the wizard to create New Empty Activity.

Deselect “Generate Layout File”

2) Edit MainActivity.java

package com.notarazi.mylistactivitynolayout1;

import android.app.ListActivity;

import android.os.Bundle;

import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

String[] values = new String[]{"Android", "iPhone", "WindowsMobile",

"Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",

"Linux", "OS/2"};

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, values);

setListAdapter(adapter);

}

What is Simple List Item 1?

OUTCOME.

3) Customize AndroidManifest to add ActionBar

(Note: Make sure your Android minimum API-14 or later.)

option1:

android:theme="@android:style/Theme.Holo.Light.DarkActionBar"

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.notarazi.mylistactivitynolayout1" >

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/AppTheme" >

<activity android:name=".MainActivity"

android:theme="@android:style/Theme.Holo.Light.DarkActionBar"

android:label="ListView_Activity_Label">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

OUTCOME.

option 2:

android:theme="@android:style/Theme.WithActionBar"

OUTCOME.

option 3:

android:theme="@android:style/Theme.DeviceDefault.Light.DarkActionBar"

OUTCOME.

4) Add Action Menu

4.1) Add Menu Resource

res/menu/menu_main.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">

<item android:id="@+id/action_settings" android:title="settings"

android:orderInCategory="100" app:showAsAction="never" />

</menu>

4.2) Edit MainActivity.java

package com.notarazi..mylistactivitynolayout1;

import android.app.ListActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

String[] values = new String[]{"Android", "iPhone", "WindowsMobile",

"Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",

"Linux", "OS/2"};

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, values);

setListAdapter(adapter);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.menu_main, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

//noinspection SimplifiableIfStatement

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

Set theme in Activity Section of AndroidManifest(Optional)

android:theme="@android:style/Theme.Holo.Light.DarkActionBar"

OUTCOME.

5) Add List Click Response

package com.notarazi.mylistactivitynolayout1;

import android.app.ListActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends ListActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

String[] values = new String[]{"Android", "iPhone", "WindowsMobile",

"Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",

"Linux", "OS/2"};

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, values);

setListAdapter(adapter);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.menu_main, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

//noinspection SimplifiableIfStatement

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

@Override

protected void onListItemClick(ListView l, View v, int position, long id) {

super.onListItemClick(l, v, position, id);

// ListView Clicked item index

int itemPosition = position;

// ListView Clicked item value

String itemValue = (String) l.getItemAtPosition(position);

Toast.makeText(this, itemValue + " selected", Toast.LENGTH_LONG).show();

}

OUTCOME.

DOWNLOAD

MyListActivityNoLayout1.zip

REFERENCE

http://www.learn-android.com/2009/12/05/lots-of-lists-1-simple/