Android Widget Example

Android Widget Example

Android Widget are present on android home screen and remotely it can show some part of your activity while activiy is close or pause.

To create Android Widget we required to extends AppWidgetProvider in our activity, and override onUpdate() method.

step1: Code for Activity java file:create an java file with in src/MyWidgetProvider.java.

package in.androidshivendra.androidwidgetapplication;

import java.util.Random;

import android.os.Bundle;

import android.app.Activity;

import android.app.PendingIntent;

import android.appwidget.AppWidgetManager;

import android.appwidget.AppWidgetProvider;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

import android.view.Menu;

import android.widget.RemoteViews;

public class MyWidgetProvider extends AppWidgetProvider {

 private static final String ACTION_CLICK = "ACTION_CLICK";

 @Override

 public void onUpdate(Context context, AppWidgetManager appWidgetManager,

     int[] appWidgetIds) {

   // Get all ids

   ComponentName thisWidget = new ComponentName(context,

       MyWidgetProvider.class);

   int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);

   for (int widgetId : allWidgetIds) {

     // Create some random data

     int number = (new Random().nextInt(100));

     RemoteViews remoteViews = new RemoteViews(context.getPackageName(),

         R.layout.widget_layout);

     Log.w("WidgetExample", String.valueOf(number));

     // Set the text

     remoteViews.setTextViewText(R.id.update, String.valueOf(number));

     // Register an onClickListener

     Intent intent = new Intent(context, MyWidgetProvider.class);

     intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);

     intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);

     PendingIntent pendingIntent = PendingIntent.getBroadcast(context,

         0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

     remoteViews.setOnClickPendingIntent(R.id.update, pendingIntent);

     appWidgetManager.updateAppWidget(widgetId, remoteViews);

   }

 }

}

create an style xml file in res/drawable/myshpae.xml

 folder in application.

    android:shape="rectangle" >

   

        android:width="2dp"

        android:color="#00fffa" />

   

        android:angle="225"

        android:endColor="#DDff00"

        android:centerColor="#cccccc"

        android:startColor="#DD000000" />

   

        android:height="20dp"/>

create a layout xml file within res/layaout/widget_layout.xml and put a textview.

    android:id="@+id/layout"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:layout_margin="8dip"

    android:background="@drawable/myshpae" >

   

        android:id="@+id/update"

        style="@android:style/TextAppearance.Medium"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:layout_margin="4dip"

        

        android:gravity="center_horizontal|center_vertical"

        android:text="Static Text" />

create a xml file for widget information with in res/xml/widget_info.xml.

    android:initialLayout="@layout/widget_layout"

    android:minHeight="72dp"

    android:minWidth="146dp"

    android:updatePeriodMillis="2000" 

    >

update manifest file with these code

    package="in.androidshivendra.androidwidgetapplication"

    android:versionCode="1"

    android:versionName="1.0" >

   

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

   

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

       

       

       android:icon="@drawable/ic_launcher"

       android:label="Example Widget"

       android:name="in.androidshivendra.androidwidgetapplication.MyWidgetProvider" >

       

           

       

       

       

          android:name="android.appwidget.provider"

          android:resource="@xml/widget_info" />

   

Time to Test your Widget Application:-

Long Press on right mouse button on Android home screen

You Can Download Comple Example source Code here