QListWidget中check和item信号问题。。求解答，谢谢。 [复制链接]

我在QListWidget控件中添加item同时有check检测，加了5个item，当点击每个item时，对应的QTabWidget里出现相应item的介绍信息，
每个item前的Checkbox，检测到会有线程运行，如下代码：

QListWidgetItem *elem;
elem = new QListWidgetItem(AP_TestItemTable[OP_FlashModule].TestFunName, ui->FunCheckListBox);
elem->setCheckState(Qt::Unchecked);
elem = new QListWidgetItem(AP_TestItemTable[OP_BusInterface ].TestFunName, ui->FunCheckListBox);
elem->setCheckState(Qt::Unchecked);
elem = new QListWidgetItem(AP_TestItemTable[OP_FlashInterface ].TestFunName, ui->FunCheckListBox);
elem->setCheckState(Qt::Unchecked);
elem = new QListWidgetItem(AP_TestItemTable[OP_Dram].TestFunName, ui->FunCheckListBox);
elem->setCheckState(Qt::Unchecked);
elem = new QListWidgetItem(AP_TestItemTable[OP_BadBlock ].TestFunName, ui->FunCheckListBox);
elem->setCheckState(Qt::Unchecked);

connect(ui->FunCheckListBox,SIGNAL(itemClicked(QListWidgetItem *)),this,SLOT(connectFri(QListWidgetItem *)));


void MITTool::connectFri(QListWidgetItem *)
{
    ui->PageControl2->clear();
    if(ui->FunCheckListBox->currentItem()->text() == "Flash Module Test")
    {
         edit1->setReadOnly(true);
         ui->PageControl2->addTab(edit1,"OP_FlashModule");
         edit1->setText("Flash Module Test ");
    }

    if(ui->FunCheckListBox->currentItem()->text() == "Bus Interface Test")
    {
         edit2->setReadOnly(true);
         ui->PageControl2->addTab(edit2,"OP_SataTest");
         edit2->setText("Bus Interface Test ");
    }

    if(ui->FunCheckListBox->currentItem()->text() == "Flash Interface Test")
    {
          edit3->setReadOnly(true);
          ui->PageControl2->addTab(edit3,"OP_FlashTest");
          edit3->setText("Flash Interface Test.");
    }

    if(ui->FunCheckListBox->currentItem()->text() == "Dram Test")
    {
          edit4->setReadOnly(true);
          ui->PageControl2->addTab(edit4,"OP_DramTest");
          edit4->setText("Dram Test.");
    }

    if(ui->FunCheckListBox->currentItem()->text() == "Bad Block Test")
    {
          edit5->setReadOnly(true);
          edit5_1->setReadOnly(true);
          ui->PageControl2->addTab(edit5,"OP_BadBlock");
         edit5_1->setText("Bad Block Test.");
    }

}

但现在，每次运行后，当先点击item，再点checkbox不会出现错误，程序正常。
当先点击checkbox，就会出现错误，关闭程序。
这个问题该如何解决？？求解答，谢谢。