Question

I have an existing android app.
I added a simple widget to it using the following:

• updated my manifest with a <receiver> block which provides information about my AppWidgetProvider implementation
• added a new xml files in res/xml with a <appwidget-provider> element that contains the height/width/updatePeriod/initialLayout/icon/label attributes
• added a simple default layout with an ImageView and a TextView
• implemented my AppWidgetProvider

When I build and deploy this to the emulator my Widget doesn’t show up in the list of widgets. Am I missing some step to ‘install’ the widget? Do I need to do anything special to make it appear in the emulator?

EDIT:
Here’s what my manifest receiver looks like:

<receiver android:name=".MyAppWidgetProvider"
          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/my_appwidget_info" />
</receiver>

and here’s what my my_appwidget_info.xml looks like:

<?xml version="1.0" encoding="UTF-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:icon="@drawable/ic_logo"
    android:label="MySampleApp"
    android:minWidth="294dp"
    android:minHeight="72dp"
    android:updatePeriodMillis="86400000"
    android:initialLayout="@layout/my_app_widget" >
</appwidget-provider>

Answer 1

Does your receiver tag in the manifest have the proper intent-filter and meta-data? It should look like the example in the documentation:

<receiver android:name="MyAppWidgetProvider" >
    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
    </intent-filter>
    <meta-data android:name="android.appwidget.provider"
               android:resource="@xml/my_appwidget_info" />
</receiver>

The receiver needs both of those pieces to be recognized as an app widget.

Edit: The <receiver> tags also need to be located inside the <application> tags.