Question

Is it possible to add an app icon , like it shows in Live Aquarium Wallpaper (https://play.google.com/store/apps/details?id=fishnoodle.aquarium_free&feature=search_result#?t=W251bGwsMSwxLDEsImZpc2hub29kbGUuYXF1YXJpdW1fZnJlZSJd)
When I install this wallpaper, it shows and icon which opens up the settings page when clicked on it. Has anyone done this before?

Answer 1

You would need to declare an Activity in your AndroidManifest.xml with the default intent-filter:

    <activity
        android:name="com.your.company.ui.SettingsActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>