Create Underlay compose view placeholder. The compose view will be

/*

 * Copyright (C) 2025 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.systemui.underlay.ui.compose

import android.util.Log

import android.view.SurfaceView

import androidx.compose.foundation.layout.Box

import androidx.compose.foundation.layout.padding

import androidx.compose.runtime.Composable

import androidx.compose.ui.Alignment

import androidx.compose.ui.Modifier

import androidx.compose.ui.res.stringResource

import androidx.compose.ui.unit.dp

import androidx.compose.ui.viewinterop.AndroidView

import com.android.compose.PlatformIconButton

import com.android.systemui.res.R

@Composable

fun UnderlayContainer(modifier: Modifier = Modifier) {

    Box(modifier = modifier) {

        // TODO: b/407634988 - Add rounded horns

        DelegatedSurfaceView()

        // Close Button.

        PlatformIconButton(

            modifier = Modifier.align(Alignment.CenterEnd).padding(end = 16.dp),

            onClick = {

                // TODO: b/406978499 - Implement the hide logic.

                Log.d(TAG, "Close")

            },

            iconResource = R.drawable.ic_close,

            contentDescription =

                stringResource(id = R.string.underlay_close_button_content_description),

        )

    }

}

/**

 * The SurfaceView content, which is currently blank, will be populated by another app using the

 * DelegatedUI framework.

 */

@Composable

private fun DelegatedSurfaceView(modifier: Modifier = Modifier) {

    AndroidView(factory = { context -> SurfaceView(context) }, modifier = modifier)

}

private const val TAG = "UnderlayContainer"

    <!-- Template that joins disabled message with the label for the voice over. [CHAR LIMIT=NONE] -->

    <string name="volume_slider_disabled_message_template"><xliff:g example="Notification" id="stream_name">%1$s</xliff:g>, <xliff:g example="Disabled because ring is muted" id="disabled_message">%2$s</xliff:g></string>

    <!-- Description for the Underlay close button. The Underlay view appears on the bottom of the screen and shows some AI hints. The button will dismiss the underlay view. [CHAR LIMIT=NONE] -->

    <string name="underlay_close_button_content_description">Close</string>

</resources>