如何在customlistview中维护每个EditText的值 [英] How to maintain value of each EditText in customlistview

问题描述

早上好，我在维护自定义列表视图中每个EditText的值时遇到问题，例如，旋转屏幕，每个值都消失了， 请帮助我，我应该怎么做，谢谢.

Good Day, I have a problem with maintaining value on each EditText in a custom listview for example I rotate the screen, each value has gone, Please Help me what approach should I do, Thanks in advance.

图片适配器

    public View getView(int position, View convertView, ViewGroup parent) {
        View row;
        row = convertView;
        final dataHandler handler;
        if(convertView == null){
            LayoutInflater inflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            row = inflater.inflate( R.layout.row_layout,parent, false);
            handler = new dataHandler();
            handler.pictures = (ImageView) row.findViewById(R.id.pictures);
            handler.name = (TextView) row.findViewById(R.id.picturename);
            handler.qty= (EditText) row.findViewById(R.id.qty);
            handler.add = (Button) row.findViewById(R.id.btnplus);
            handler.minus = (Button) row.findViewById(R.id.btnminus);
            row.setTag(handler);
        }else{
            handler = (dataHandler) row.getTag();
        }
        final PSP psp;
        psp =(PSP) this.getItem(position);
    Picasso.with(getContext()).load(psp.getPicture()).resize(200, 155).into(handler.pictures);
    handler.name.setText(psp.getName() + "\n ₱" + psp.getPrice());
    handler.qty.setText("0");
    img = psp.getPicture();

    handler.add.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String pricex = handler.qty.getText().toString();
            int xx = Integer.parseInt(pricex);
            int total = xx + 1;
            String totalx = Integer.toString(total);
            handler.qty.setText(totalx);

            map.put("" + handler.name.getText().toString(), " " + handler.qty.getText().toString());
            ShowHashMapValue();
        }
    });

    handler.minus.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String pricex = handler.qty.getText().toString();

            int xx = Integer.parseInt(pricex);
            if(xx > 0 ){
                int total = xx-1;
                String totalx = Integer.toString(total);
                handler.qty.setText(totalx);
                map.put("" + handler.name.getText().toString(), " " + handler.qty.getText().toString());


            }}
    });



    return row;
}

推荐答案

在您的 PSP 模型).

    String pricex = psp.getQuanntity();
                int xx = Integer.parseInt(pricex);
                int total = xx + 1;
                String totalx = Integer.toString(total);
    handler.qty.setText(totalx);

     handler.add.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {    
                //add
                psp.setQuantity(yourQuantity++);
                notifyDataSetChanged();
              }
        });

 handler.minus.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {    
                //add
                psp.setQuantity(yourQuantity--);
                notifyDataSetChanged();
              }
        });

希望对您有帮助.

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