Move SystemUpdateManager.retrieveSystemUpdateInfo

Into Kotlin Coroutine for true async.

Bug: 300851543
Test: manual - on system page
Test: unit test
Change-Id: Ibec5c9d0934d71ed1a5808cadf3b3542eb3d5fa0

src/com/android/settings/system/SystemUpdateManagerExt.kt

@@ -0,0 +1,42 @@
+/*
+ * 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.settings.system
+
+import android.content.Context
+import android.os.Bundle
+import android.os.SystemUpdateManager
+import android.util.Log
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+private const val TAG = "SystemUpdateManagerExt"
+
+/**
+ * Gets the system update status.
+ *
+ * Note: [SystemUpdateManager.retrieveSystemUpdateInfo] must be called on worker thread to avoid
+ * StrictMode violation.
+ */
+suspend fun Context.getSystemUpdateInfo(): Bundle? = withContext(Dispatchers.Default) {
+    val updateManager = getSystemService(SystemUpdateManager::class.java)!!
+    try {
+        updateManager.retrieveSystemUpdateInfo()
+    } catch (e: Exception) {
+        Log.w(TAG, "Error getting system update info.")
+        null
+    }
+}