From 3f2404ec1cd994256e22fc7a4d9e960d424eb541 Mon Sep 17 00:00:00 2001
From: uniartisan <lizhiyuan@uniartisan.com>
Date: Sun, 19 Feb 2023 00:45:17 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20downloadController=20=E4=BF=AE=E6=94=B9?=
 =?UTF-8?q?=E4=B8=BA=E6=87=92=E6=B1=89=E5=BC=8F=E5=8D=95=E4=BE=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 src/widgets/downloadlistwidget.cpp | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/widgets/downloadlistwidget.cpp b/src/widgets/downloadlistwidget.cpp
index 07d7046..6e887f3 100644
--- a/src/widgets/downloadlistwidget.cpp
+++ b/src/widgets/downloadlistwidget.cpp
@@ -5,6 +5,8 @@
 #include <QDebug>
 #include <QtConcurrent>
 
+
+
 DownloadListWidget::DownloadListWidget(QWidget *parent) : DBlurEffectWidget(parent),
                                                           ui(new Ui::DownloadListWidget)
 {
@@ -58,7 +60,7 @@ DownloadListWidget::~DownloadListWidget()
     {
         downloadController->disconnect();
         downloadController->stopDownload();
-        downloadController->deleteLater();
+        // 这里没有释放 downloadController，使用懒汉式单例
     }
 
     clearItem();
@@ -116,13 +118,20 @@ void DownloadListWidget::startRequest(QUrl url, QString fileName)
     isdownload = true;
     downloaditemlist[allDownload - 1]->free = false;
 
+
+    // 使用懒汉式单例来存储downloadController
+    if (downloadController == nullptr)
+    {
+        downloadController = new DownloadController; // 并发下载，在第一次点击下载按钮的时候才会初始化
+    }
+
+
     if (downloadController)
     {
         downloadController->disconnect();
         downloadController->stopDownload();
-        downloadController->deleteLater();
     }
-    downloadController = new DownloadController; // 并发下载，在点击下载按钮的时候才会初始化
+
     connect(downloadController, &DownloadController::downloadProcess, this, &DownloadListWidget::updateDataReadProgress);
     connect(downloadController, &DownloadController::downloadFinished, this, &DownloadListWidget::httpFinished);
     // connect(downloadController, &DownloadController::errorOccur, this, [=](QString msg){this->sendNotification(msg);});