ListenableWatchFaceService.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.wear.watchface
import android.view.SurfaceHolder
import androidx.wear.watchface.style.CurrentUserStyleRepository
import com.google.common.util.concurrent.ListenableFuture
import kotlinx.coroutines.CompletableDeferred
/**
* [ListenableFuture]-based compatibility wrapper around [WatchFaceService]'s suspending
* [WatchFaceService.createWatchFace].
*/
public abstract class ListenableWatchFaceService : WatchFaceService() {
/** Override this factory method to create your WatchFaceImpl. */
protected abstract fun createWatchFaceFuture(
surfaceHolder: SurfaceHolder,
watchState: WatchState,
complicationSlotsManager: ComplicationSlotsManager,
currentUserStyleRepository: CurrentUserStyleRepository
): ListenableFuture<WatchFace>
override suspend fun createWatchFace(
surfaceHolder: SurfaceHolder,
watchState: WatchState,
complicationSlotsManager: ComplicationSlotsManager,
currentUserStyleRepository: CurrentUserStyleRepository
): WatchFace = CompletableDeferred<WatchFace>().apply {
val future = createWatchFaceFuture(
surfaceHolder,
watchState,
complicationSlotsManager,
currentUserStyleRepository
)
future.addListener(
{ complete(future.get()) },
{ runnable -> runnable.run() }
)
}.await()
}