Create Simple Widget in Android

Hi .
Here we Discuss about how to create Simple Widget in android...
Here use AppWidgetProvider class .

 First Create Simple android project name is widget.

1) res/layout/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:orientation="vertical"
    android:layout_gravity="center"
    android:background="@android:color/holo_orange_light"
    android:layout_height="wrap_content">

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="welcome" />
   
<TextView android:id="@+id/widget_textview"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:layout_gravity="center_horizontal|center"
    android:layout_marginTop="5dip"
    android:padding="10dip"
    android:text="Welcome Oak Tech."
    android:textColor="@android:color/black"/>
</LinearLayout>

2) AndroidManifest.xml


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="widget.co.in"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="15" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
   <!-- Broadcast Receiver that will process AppWidget updates -->
        <receiver android:name=".WidgetActivity" android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/welcome" />
        </receiver>
    </application>

</manifest>

3)  create xml folder in res . res/xml/welcome.xml

 this .xml file create appwidget-provider tag for view widget.


<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:minWidth="146dip"
android:minHeight="72dip"
android:updatePeriodMillis="10000"
android:initialLayout="@layout/main"
/>

4) Create Following Activity.
WidgetActivity.java


import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.app.Activity;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.widget.RemoteViews;

public class WidgetActivity extends AppWidgetProvider {
}
   
5) Run Above Application and see in console

 Uploading widget.apk onto device 'emulator-5554'

 Installing widget.apk...
 Success!
 /widget/bin/widget.apk installed on device
 Done!

6) Now Goto Emulator and Open widget (long press left click on home screen) . and See Widget window and longpress on widget icon for our application.
  see Button and Textview in widget window.

 output: