From 308d2da6812d2c050ebeaf0ef5e188093e1fc130 Mon Sep 17 00:00:00 2001
From: zr4in <zr4in@qq.com>
Date: Tue, 12 Nov 2024 17:03:33 +0800
Subject: [PATCH] fix bug: DeviceState.get_all_children doesn't return all the
 children of choosed view

---
 droidbot/device_state.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/droidbot/device_state.py b/droidbot/device_state.py
index 5cb85555..932886d6 100644
--- a/droidbot/device_state.py
+++ b/droidbot/device_state.py
@@ -386,7 +386,7 @@ def get_all_children(self, view_dict):
         children = set(children)
         for child in children:
             children_of_child = self.get_all_children(self.views[child])
-            children.union(children_of_child)
+            children = children.union(children_of_child)
         return children
 
     def get_app_activity_depth(self, app):