android handle set as wallpaper

gistfile1.txt

            <intent-filter>
                <action android:name="android.intent.action.ATTACH_DATA" />
                <category android:name="android.intent.category.DEFAULT" />
                <data android:scheme="content" />
                <data android:scheme="file" />
                <data android:mimeType="image/*" />
                <category android:name="android.intent.category.ALTERNATIVE" />
                <category android:name="android.intent.category.SELECTED_ALTERNATIVE" />
            </intent-filter>