I would like an app's launch icon run the app's preferences activity (as it has no Activities, only a Service).
The preferences are defined in res/xml/preferences.xml.
Please help me regarding this.
you need to create an activity for your preference (PreferenceActivity), add that activity in your manifest and provide appropriate intent-filters as shown below to run through launcher:
<activity android:name=".MyPreferenceActivity" android:label="Preferences" android:noHistory="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
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