| /* |
| * Copyright (C) 2022 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.util |
| |
| import android.app.IActivityTaskManager |
| import android.app.WaitResult |
| import android.content.Context |
| import android.content.Intent |
| import android.os.Bundle |
| import android.os.UserHandle |
| import com.android.systemui.dagger.qualifiers.Main |
| import com.android.systemui.dagger.qualifiers.UiBackground |
| import java.util.concurrent.Executor |
| import javax.inject.Inject |
| |
| /** |
| * Helper class that allows to launch an activity and asynchronously wait |
| * for it to be launched. This class uses application context, so the intent |
| * will be launched with FLAG_ACTIVITY_NEW_TASK. |
| */ |
| class AsyncActivityLauncher @Inject constructor( |
| private val context: Context, |
| private val activityTaskManager: IActivityTaskManager, |
| @UiBackground private val backgroundExecutor: Executor, |
| @Main private val mainExecutor: Executor |
| ) { |
| |
| private var pendingCallback: ((WaitResult) -> Unit)? = null |
| |
| /** |
| * Starts activity and notifies about the result using the provided [callback]. |
| * If there is already pending activity launch the call will be ignored. |
| * |
| * @return true if launch has started, false otherwise |
| */ |
| fun startActivityAsUser(intent: Intent, userHandle: UserHandle, |
| activityOptions: Bundle? = null, |
| callback: (WaitResult) -> Unit): Boolean { |
| if (pendingCallback != null) return false |
| |
| pendingCallback = callback |
| |
| intent.flags = intent.flags or Intent.FLAG_ACTIVITY_NEW_TASK |
| |
| backgroundExecutor.execute { |
| val waitResult = activityTaskManager.startActivityAndWait( |
| /* caller = */ null, |
| /* callingPackage = */ context.packageName, |
| /* callingFeatureId = */ context.attributionTag, |
| /* intent = */ intent, |
| /* resolvedType = */ null, |
| /* resultTo = */ null, |
| /* resultWho = */ null, |
| /* requestCode = */ 0, |
| /* flags = */ 0, |
| /* profilerInfo = */ null, |
| /* options = */ activityOptions, |
| /* userId = */ userHandle.identifier |
| ) |
| mainExecutor.execute { |
| pendingCallback?.invoke(waitResult) |
| } |
| } |
| |
| return true |
| } |
| |
| /** |
| * Cancels pending activity launches. It guarantees that the callback won't be fired |
| * but the activity will be launched anyway. |
| */ |
| fun destroy() { |
| pendingCallback = null |
| } |
| } |