【前端接口】邮件附件领取交互：ItemBox图标与一键领取的实现

local function renderAttach(mailRow, attachs)
    for i, att in ipairs(attachs or {}) do
        local box = GUI:ItemBox_Create(mailRow, "att" .. i, 16 + (i - 1) * 52, 8, "res/item/" .. att.icon, 1)
        GUI:addOnClickEvent(box, function()
            SL:ShowSystemTips(att.name .. " x" .. att.num)
        end)
    end
end

GUI:addOnClickEvent(btnTake, function()
    GUI:setText(btnTake, "领取中")
    GUI:setVisible(btnTake, false)
    SL:SendNetMsg(8101, { mailid = curMailId })
end)
SL:RegisterLuaNetMsg(8102, function(data)
    if data.ok == 1 then
        SL:ShowSystemTips("附件已入包")
        refreshMailList()
    end
    GUI:setText(btnTake, "一键领取")
    GUI:setVisible(btnTake, true)
end)