Files
Lawnchair/quickstep/src/com/android/quickstep/BootAwarePreloader.kt
T
Stefan Andonian 5bd9a225a8 Preload expensive objects before user is unlocked.
This change includes migrating data required for starting the launcher
from encrypted storage into device protected storage. All of the data
being moved has already been approved by the correct authorities.

Bug: 251502424
Test: Performed latency testing using logs from user unlock until first
workspace screen loaded.

Change-Id: I58b0cd1c7bad260c2252f9e172ef85ab885c7fe9
2023-03-01 23:09:07 +00:00

52 lines
1.8 KiB
Kotlin

/*
* Copyright (C) 2023 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.quickstep
import android.content.Context
import android.util.Log
import com.android.launcher3.LauncherAppState
import com.android.launcher3.LauncherPrefs
import com.android.launcher3.isBootAwareStartupDataEnabled
import com.android.launcher3.util.LockedUserState
/**
* Loads expensive objects in memory before the user is unlocked. This decreases experienced latency
* when starting the launcher for the first time after a reboot.
*/
object BootAwarePreloader {
private const val TAG = "BootAwarePreloader"
@JvmStatic
fun start(context: Context) {
val lp = LauncherPrefs.get(context)
when {
LockedUserState.get(context).isUserUnlocked || !isBootAwareStartupDataEnabled -> {
/* No-Op */
}
lp.isStartupDataMigrated -> {
Log.d(TAG, "preloading start up data")
LauncherAppState.INSTANCE.get(context)
}
else -> {
Log.d(TAG, "queuing start up data migration to boot aware prefs")
LockedUserState.get(context).runOnUserUnlocked {
lp.migrateStartupDataToDeviceProtectedStorage()
}
}
}
}
}