From 8bed8d3454bbffa2725c6d6347b0594288cb5848 Mon Sep 17 00:00:00 2001
From: Chihhang Chuang <chihhangchuang@google.com>
Date: Tue, 16 Jun 2020 15:09:20 +0800
Subject: [PATCH] Launch WallpaperPicker in a new task

Wallpaper does not support multi window mode, but launching from
Settings will make it support multi window because the root activity
supports.

Solution: Launch WallpaperPicker in a new task

Test: Manually
Fixes: 158642941
Change-Id: I93a6eaa8c0292e99c54d5278274482075ed007d5
---
 .../settings/display/WallpaperPreferenceController.java        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/com/android/settings/display/WallpaperPreferenceController.java b/src/com/android/settings/display/WallpaperPreferenceController.java
index b6af9bcb024..2e7e101015d 100644
--- a/src/com/android/settings/display/WallpaperPreferenceController.java
+++ b/src/com/android/settings/display/WallpaperPreferenceController.java
@@ -92,7 +92,8 @@ public class WallpaperPreferenceController extends BasePreferenceController {
     @Override
     public boolean handlePreferenceTreeClick(Preference preference) {
         if (getPreferenceKey().equals(preference.getKey())) {
-            preference.getContext().startActivity(new Intent().setComponent(getComponentName()));
+            preference.getContext().startActivity(new Intent().setComponent(getComponentName())
+                    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
             return true;
         }
         return super.handlePreferenceTreeClick(preference);