ActivityExt.kt

/*
 * Copyright 2021 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 androidx.window

import android.app.Activity
import android.os.IBinder

/**
 * A utility method [Activity] to return an optional [IBinder] window token from an [Activity].
 */
internal fun getActivityWindowToken(activity: Activity?): IBinder? {
    return activity?.window?.attributes?.token
}