From a7811f312c1add5f6a16e44970ebd010173abed3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=98=E9=9F=AC=20=E5=BC=A0?= <hongtao_zhang@outlook.com>
Date: Mon, 15 Feb 2021 18:19:30 +0800
Subject: [PATCH] fix an issue

---
 Flow.Launcher/ViewModel/MainViewModel.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Flow.Launcher/ViewModel/MainViewModel.cs b/Flow.Launcher/ViewModel/MainViewModel.cs
index 0cf4b11dc..3e71adcd1 100644
--- a/Flow.Launcher/ViewModel/MainViewModel.cs
+++ b/Flow.Launcher/ViewModel/MainViewModel.cs
@@ -98,15 +98,15 @@ namespace Flow.Launcher.ViewModel
                 // it is not supposed to be false because it won't be complete
                 while (await queueReader.WaitToReadAsync())
                 {
-                    queue.Clear();
                     await Task.Delay(20);
-                    await foreach (var item in queueReader.ReadAllAsync())
+                    while (queueReader.TryRead(out var item))
                     {
                         if (!item.Token.IsCancellationRequested)
                             queue[item.ID] = item;
                     }
 
                     UpdateResultView(queue.Values);
+                    queue.Clear();
                 }
 
                 Log.Error("MainViewModel", "Unexpected ResultViewUpdate ends");