Question

在此项目MainFragment中，“自定义适配器”类用于加载列表视图。适配器项是从名为“ PayMode”的Bean类填充的。在该适配器中，有四个“ TextView”和一个“ EditText（allocatedAmt）”。该“ EditText”不是从该Bean类填充的。该“ Edittext” Logcat上的AfterTextChanged正确显示了文本“ editable.toString（）”。

现在，我需要为适配器中的“ Edittext（allocatedAmt）”启用一个按钮（在MainFragment中）afterTextChanged列表器。下面是我的代码。

Adapter.java

public class PayModeAdapter extends ArrayAdapter<PayMode> {

    Context context;
    ArrayList<PayMode> list;
    boolean isAllocatedFinished = false;

    public PayModeAdapter(Context context, ArrayList<PayMode> list ) {
        super(context, R.layout.row_pay_mode, list);
        this.context = context;
        this.list = list;

    }

    public boolean isAllocatedFinished() {
        return isAllocatedFinished;
    }

    @Override
    public View getView(final int position, final View convertView, final ViewGroup parent) {

        LayoutInflater inflater = null;
        View row = convertView;
        Holder holder = null;
        final PayMode payMode = list.get(position);

        if (row == null)
        {
            inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            row = inflater.inflate(R.layout.row_pay_mode, parent, false);

            holder = new Holder();

            holder.mode = (TextView) row.findViewById(R.id.txtPayMode);
            holder.date = (TextView) row.findViewById(R.id.txtPayDate);
            holder.amt = (TextView)row.findViewById(R.id.txtAmount);
            holder.remAmt = (TextView)row.findViewById(R.id.txtRemAmount);
            holder.allocatedAmt = (EditText)row.findViewById(R.id.editAlloAmount);

            holder.allocatedAmt.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

                }

                @Override
                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

                }

                @Override
                public void afterTextChanged(Editable editable) {

                    isAllocatedFinished = true;
                    Log.d("PAY_MODE_ADAPTER", "VALUE_IS: " + editable.toString());

                }
            });

            row.setTag(holder);
        }
        else
        {
            holder = (Holder)row.getTag();
        }

        holder.mode.setText(payMode.getFPAYMODE_PAID_TYPE());
        holder.date.setText(payMode.getFPAYMODE_PAID_DATE());
        holder.amt.setText(payMode.getFPAYMODE_PAID_AMOUNT());
        holder.remAmt.setText(payMode.getFPAYMODE_PAID_AMOUNT());
        holder.allocatedAmt.setText("0.00");

        return row;
    }

    class Holder {
        TextView mode;
        TextView date;
        TextView amt;
        TextView remAmt;
        EditText allocatedAmt;
    }
}

MainFragment.java

onCreateView(){
payModeArrayList = new PayModeDS(getActivity()).getAllPayModeDetails();
        payModeAdapter = new PayModeAdapter(getActivity(), payModeArrayList);

        if (payModeAdapter.isAllocatedFinished()){

            bCancel.setEnabled(true);
        }
}

Answer 1

您可以尝试使用onFocusChange并覆盖其onFocusChange方法。

在if(!hasFocus) { //your changes here }内添加以下代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;

namespace XXXX
{
public partial class Form1 : Form
{
    public Form1()
    {
        TopMost = true;
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
    }
    private void button1_Click(object sender, EventArgs e)
    {
        serialPort1.PortName = "COM2";
        serialPort1.BaudRate = 9600;
        serialPort1.Parity = Parity.None;
        serialPort1.DataBits = 8;
        serialPort1.StopBits = StopBits.One;
        serialPort1.Handshake = Handshake.None;
        serialPort1.Open();
        serialPort1.Write("XXXX\r");
        serialPort1.Close();
    }
}
}

希望有帮助

自定义适配器后无法在活动中启用按钮编辑文字afterTextChanged（）

1 个答案: