Question

我正在开发一个用于餐厅订购系统的Android应用程序，现在我想为特定项添加一些描述，以便我添加了Dialogfragment并将其设置为自定义适配器ImageView Click侦听器，对话框片段正确显示，如以及数据，也是从编辑文本传递，但它显示在列表视图的最后一个元素中。我曾经尝试过各种程序和方法，但它仍然一样，请帮助我，伙计们。我附上了我项目的截图 New TABLE ACTIVITY WHERE IS LISTVIEW

DIALOG FRAGMENT

AFTER ADDING DIALOG FRAGMENT DATA

我在这里添加自定义适配器代码

 public class CustomAdapter_MenuList extends BaseAdapter{

Activity activity;
Context CONTEXT;
LayoutInflater layoutInflater;
public List<GetandSet> details;
CustomAdapter_MenuList.ViewHolder viewHolder;
GetandSet getandSet;
TextView GrandTotal;
TextView txtTotalItems;
ArrayList<String>Desciption = new ArrayList<>();

private EditText mInput;
Button btnadd,btnclose;


String desc;

public CustomAdapter_MenuList(Activity activity,Context context, List<GetandSet> details,TextView txtGrandtotal,TextView txttotalitems) {
    this.activity = activity;
    this.CONTEXT = context;
    this.details = details;
    this.GrandTotal = txtGrandtotal;
    this.txtTotalItems = txttotalitems;
    this.layoutInflater = (LayoutInflater) LayoutInflater.from(context);
}

@Override
public int getCount() {
    return details.size();
}

@Override
public Object getItem(int position) {
    return details.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}


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

    getandSet = new GetandSet();

    final float menu_rate = 
Float.parseFloat(details.get(position).getRate()); 


    if (convertView == null) {
        LayoutInflater inflater = 
 (LayoutInflater)CONTEXT.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.newtable_template, null);
        viewHolder = new CustomAdapter_MenuList.ViewHolder(convertView);
        convertView.setTag(viewHolder);
    } else {
        viewHolder = (CustomAdapter_MenuList.ViewHolder) convertView.getTag();
    }

    for(int i = 0 ; i<details.size(); i++)
    {
        for(int j = i+1; j < details.size(); j++)
        {

if(details.get(j).getMenu_id().equals(details.get(i).getMenu_id()))
            {
                details.remove(j);
                j--;

                getandSet = details.get(i);
                getandSet.Menu_qty = details.get(i).getMenu_qty() + 1;
            }
        }
    }

    viewHolder.txtsrno.setText(details.get(position).getMenu_id());
    viewHolder.txtsrno.setVisibility(View.INVISIBLE);
    viewHolder.txtsrnotem.setText(String.valueOf(position+1));
    viewHolder.txtmname.setText(details.get(position).getM_name());
    viewHolder.txtrate.setText(details.get(position).getRate());

    getandSet = details.get(position);
    getandSet.Menu_price = menu_rate * getandSet.Menu_qty;
    viewHolder.txtqty.setText(getandSet.Menu_qty+"");
    viewHolder.txtprice.setText(getandSet.Menu_price +"");

    GrandTotal.setText(String.valueOf(grandTotal(details)));
    txtTotalItems.setText(String.valueOf(grandTotal(details,position)));

    notifyDataSetChanged();


    //Add Button Code

    viewHolder.btnadd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            getandSet = details.get(position);
            //updateQuantity(position, txtqty,itemrate, 1);
            getandSet.Menu_qty = getandSet.Menu_qty + 1;
            getandSet.Menu_price = menu_rate * getandSet.Menu_qty;
            viewHolder.txtqty.setText(""+getandSet.Menu_qty);
            viewHolder.txtprice.setText(getandSet.Menu_price +"");

            notifyDataSetChanged();
        }
    });


    //Minus Button 
    viewHolder.btnsub.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            getandSet = details.get(position);
            //updateQuantity(position, txtqty,itemrate, -1);
            if(getandSet.Menu_qty > 1)
            {
                getandSet.Menu_qty = getandSet.Menu_qty - 1;
                getandSet.Menu_price = menu_rate * getandSet.Menu_qty ;
                viewHolder.txtqty.setText(""+getandSet.Menu_qty);
                viewHolder.txtprice.setText(getandSet.Menu_price +"");

                notifyDataSetChanged();
            }
        }
    });

    //Add Description Button 
    viewHolder.btn_Desc.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openDialog(position);
        }
    });
    return convertView;
}

//View Holder Class
private class ViewHolder {
    TextView txtsrno,txtmname, txtqty,txtrate,txtprice,txtsrnotem,txtdesc;
    Button btnadd,btnsub;
    ImageView btn_Desc;

    public ViewHolder(View view)
    {
        txtsrno = (TextView)view.findViewById(R.id.txt_NTsrno);
        txtsrnotem = (TextView)view.findViewById(R.id.txt_NT_srno);
        txtmname = (TextView)view.findViewById(R.id.txt_NT_Item);
        txtqty = (TextView)view.findViewById(R.id.txt_Nt_qty);
        txtrate = (TextView)view.findViewById(R.id.txt_Nt_rate);
        txtprice = (TextView)view.findViewById(R.id.txt_NT_price);
        txtdesc = (TextView)view.findViewById(R.id.txt_NT_desc);
        btnadd = (Button)view.findViewById(R.id.btn_add);
        btnsub = (Button)view.findViewById(R.id.btn_sub);
        btn_Desc = (ImageView) view.findViewById(R.id.img_desc);
    }
}

//Grand - Total
private float grandTotal(List<GetandSet> items){
    float totalPrice = 0;
    for(int i = 0 ; i < items.size(); i++) {
        totalPrice += items.get(i).getMenu_price();
    }
    return totalPrice;
}

//Number of Items
private int grandTotal(List<GetandSet> items,int p){
   int totalitems = 0;
    for(int i = 0 ; i < items.size(); i++) {
        totalitems += 1;
    }
    return totalitems;
}

private void openDialog(final int position){
    LayoutInflater inflater = LayoutInflater.from(activity);
    View subView = inflater.inflate(R.layout.dialogfragment_description, null);

    mInput = subView.findViewById(R.id.edt_desc);

    AlertDialog.Builder builder = new AlertDialog.Builder(activity);
    builder.setTitle("Add Description");
    builder.setView(subView);
    final AlertDialog alertDialog = builder.create();

    builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            desc = mInput.getText().toString();
            //getandSet = details.get(position);
            details.get(position).setDes(desc);
            viewHolder.txtdesc.setText(details.get(position).getDes().toString());
            notifyDataSetChanged();
        }
    });

    builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            alertDialog.dismiss();
        }
    });

    builder.show();
}

}

Answer 1

        viewHolder.txtdesc.setText(details.get(position).getDes().toString());
        notifyDataSetChanged();

在完成openDialog（）方法

之后立即放置这一行

如何将数据从对话框片段传递到自定义适配器特定位置

1 个答案: