OutboundFinishedSearchPage.xaml.cs
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using IndustrialControl.Services;
using IndustrialControl.ViewModels;
namespace IndustrialControl.Pages;
public partial class OutboundFinishedSearchPage : ContentPage
{
private readonly ScanService _scanSvc;
private readonly OutboundFinishedSearchViewModel _vm;
public OutboundFinishedSearchPage(OutboundFinishedSearchViewModel vm, ScanService scanSvc)
{
_vm = vm;
BindingContext = vm;
_scanSvc = scanSvc;
InitializeComponent();
// 可选:配置前后缀与防抖
_scanSvc.Prefix = null; // 例如 "}q" 之类的前缀;没有就留 null
// _scanSvc.Suffix = "\n"; // 如果设备会附带换行,可去掉;没有就设 null
//_scanSvc.DebounceMs = 250;
_scanSvc.Suffix = null; // 先关掉
_scanSvc.DebounceMs = 0; // 先关掉
}
protected override async void OnAppearing()
{
base.OnAppearing();
// 动态注册广播接收器(只在当前页面前台时生效)
_scanSvc.Scanned += OnScanned;
_scanSvc.StartListening();
//键盘输入
_scanSvc.Attach(OrderEntry);
OrderEntry.Focus();
}
/// <summary>
/// 清空扫描记录
/// </summary>
void OnClearClicked(object sender, EventArgs e)
{
OrderEntry.Text = string.Empty;
OrderEntry.Focus();
}
protected override void OnDisappearing()
{
// 退出页面即注销(防止多个程序/页面抢处理)
_scanSvc.Scanned -= OnScanned;
_scanSvc.StopListening();
base.OnDisappearing();
}
private void OnScanned(string data, string type)
{
MainThread.BeginInvokeOnMainThread(async () =>
{
// 常见处理:自动填入单号/条码并触发查询或加入明细
_vm.SearchOrderNo = data;
});
}
}