안드로이드 위젯에서 Activity 호출하기

1. 호출 받을 Activity의 xml 파일 만들기. layout/appwidgetmain.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/LinearLayout01"
    android:layout_height="200dp"
    android:background="@drawable/background"
    android:layout_width="160dp"
    android:orientation="horizontal">
    <Button 
     android:text="@+id/Button01" 
     android:id="@+id/Button01" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content">
    </Button>
    <TextView
        android:id="@+id/widget_textview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@android:color/black"
        android:text="17:12:34 PM"
        android:textSize="8pt"
    />

</LinearLayout>

호출 받을 Activity만들기

package com.sh.watchwidget;

import android.app.Activity;
import android.os.Bundle;

public class MyActvity extends Activity {

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
 
     // TODO Auto-generated method stub
 }

}

위젯의 배경 이미지 만들기 /res/drawable/background.png

위젯의 레이아웃 만들기 . layout/appwidgetmain.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/LinearLayout01"
    android:layout_height="200dp"
    android:background="@drawable/background"
    android:layout_width="160dp"
    android:orientation="horizontal">
    <Button 
     android:text="@+id/Button01" 
     android:id="@+id/Button01" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content">
    </Button>
    <TextView
        android:id="@+id/widget_textview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@android:color/black"
        android:text="17:12:34 PM"
        android:textSize="8pt"
    />

</LinearLayout>

AppWidgetProvider를 상속 받은 위젯 메인 페이지 만들기.

package com.sh.watchwidget;

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

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.net.Uri;
import android.widget.RemoteViews;

public class WatchWidget extends AppWidgetProvider
{
    @Override
    public void onUpdate( Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds )
    {
        RemoteViews remoteViews;
        ComponentName watchWidget;
        DateFormat format = SimpleDateFormat.getTimeInstance( SimpleDateFormat.MEDIUM, Locale.getDefault() );
        Intent intent = new Intent();
        intent.addCategory(Intent.CATEGORY_BROWSABLE); 
        intent.setComponent(new ComponentName("com.sh.watchwidget", "com.sh.watchwidget.MyActvity"));
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
        remoteViews = new RemoteViews( context.getPackageName(), R.layout.appwidgetmain );
        watchWidget = new ComponentName( context, WatchWidget.class );
        remoteViews.setTextViewText( R.id.widget_textview, "Time = " + format.format( new Date()));
        remoteViews.setOnClickPendingIntent(R.id.Button01, pendingIntent);
        appWidgetManager.updateAppWidget( watchWidget, remoteViews );
        
        
    }
}

appwidget-provider xml 파일 만들기

<?xml version="1.0" encoding="utf-8" ?>
<appwidget-provider
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:minWidth="146dp"
    android:initialLayout="@layout/appwidgetmain"
    android:updatePeriodMillis="1000" 

 watchwidget.zip

    android:minHeight="144dp"/>

AndroidManifest.xml 파일에 application 추가하기

<?xml version="1.0" encoding="utf-8"?>
<manifest
    xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.sh.watchwidget"
    android:versionCode="1"
    android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
        <receiver android:name=".WatchWidget" 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/watch_widget_provider" />
        </receiver>
    <activity android:name="MyActvity"></activity>
</application>
    <uses-sdk android:minSdkVersion="3" />
</manifest>

결과 화면
 

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