Exclude trampoline activity from Recents

            android:label="@string/camera_label"

            android:theme="@style/android:Theme.NoDisplay" />

        <activity-alias android:name="com.android.camera.CameraLauncher"

            android:excludeFromRecents="true"

            android:label="@string/camera_label"

            android:targetActivity="com.android.camera.CameraActivity">

            <intent-filter>