Make DesktopWallpaperActivity aware of current user to support HSUM. (1/n)

            android:name=".desktopmode.DesktopWallpaperActivity"

            android:excludeFromRecents="true"

            android:launchMode="singleInstance"

            android:showForAllUsers="true"

            android:theme="@style/DesktopWallpaperTheme" />

        <activity

import android.os.Handler

import android.os.IBinder

import android.os.SystemProperties

import android.os.UserHandle

import android.util.Size

import android.view.Display.DEFAULT_DISPLAY

import android.view.DragEvent

    private fun addWallpaperActivity(wct: WindowContainerTransaction) {

        logV("addWallpaperActivity")

        val intent = Intent(context, DesktopWallpaperActivity::class.java)

        val userHandle = UserHandle.of(userId)

        val userContext =

            context.createContextAsUser(userHandle, /* flags= */ 0)

        val intent = Intent(userContext, DesktopWallpaperActivity::class.java)

        intent.putExtra(Intent.EXTRA_USER_HANDLE, userId);

        val options =

            ActivityOptions.makeBasic().apply {

                launchWindowingMode = WINDOWING_MODE_FULLSCREEN

                    ActivityOptions.MODE_BACKGROUND_ACTIVITY_START_ALLOW_ALWAYS

            }

        val pendingIntent =

            PendingIntent.getActivity(

                context,

            PendingIntent.getActivityAsUser(

                userContext,

                /* requestCode= */ 0,

                intent,

                PendingIntent.FLAG_IMMUTABLE

                PendingIntent.FLAG_IMMUTABLE,

                /* bundle= */ null,

                userHandle

            )

        wct.sendPendingIntent(pendingIntent, intent, options.toBundle())

    }

class DesktopWallpaperActivity : Activity() {

    override fun onCreate(savedInstanceState: Bundle?) {

        ProtoLog.d(WM_SHELL_DESKTOP_MODE, "DesktopWallpaperActivity: onCreate")

        super.onCreate(savedInstanceState)

        window.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE)

    }