Question

我有一个列表视图，我听这个。我检查了一个选项，但另一个选择被自动选中，因此总共选择了两个项目。我选择了一个，另一个自动选中。我希望我点击的项目仅被选中。我该如何解决？

@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null)
            convertView = mContext.getLayoutInflater().inflate(
                    R.layout.brandslayout, parent, false);

        TextView UrunAdi = (TextView) convertView
                .findViewById(R.id.BrandAdi);
        final TextView UrunId = (TextView) convertView
                .findViewById(R.id.BrandId);

        final CheckBox chkSelect = (CheckBox) convertView
                .findViewById(R.id.checkBox1);

        final EditText edtText = (EditText) convertView
                .findViewById(R.id.edtOran);

        Button btnSelect = (Button) convertView
                .findViewById(R.id.btnSeciliBrand);

        final TextView tvOran = (TextView) convertView
                .findViewById(R.id.tvRateIcon);

        UrunAdi.setText(((Brands)Markalar.get(position)).BrandName);
        UrunId.setText(((Brands)Markalar.get(position)).BrandId);
        chkSelect.setVisibility(((Brands)Markalar.get(position)).deger1);
        edtText.setVisibility(((Brands)Markalar.get(position)).deger2);
        btnSelect.setVisibility(((Brands)Markalar.get(position)).deger3);
        tvOran.setVisibility(((Brands)Markalar.get(position)).deger4);

        convertView.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                Toast.makeText(YeniSahaActivity2.this, "Ürünler Aranıyor...", Toast.LENGTH_SHORT).show();
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

                Spinner spnProductGroup = (Spinner)findViewById(R.id.spnBrandProduct);


                if(chkSelect.isChecked())
                {

                    ProductGroupId=UrunId.getText().toString();
                    RackPercentage= edtText.getText().toString();
                    ExistsOnRack = "1";
                    AddProducts(Integer.parseInt( spnProductGroup.getSelectedItem().toString().split("#")[1]),Integer.parseInt(UrunId.getText().toString()));
                    //Button btnSave = (Button) findViewById(R.id.btnMarkaGir);
                    //btnSave.setText("");

                }
                else
                {
                    ExistsOnRack = "0";
                    //Toast.makeText(YeniSahaActivity2.this, "Lütfen ürün grubu seçiniz...", Toast.LENGTH_SHORT).show();
                    Extras e = new Extras();
                    e.ViewAlert("Lütfen ürün grubu seçiniz...", YeniSahaActivity2.this);


                }
            }
        });

        return convertView;

    }
}

Answer 1

您必须小心，因为滚动时列表视图重复使用元素。您需要在getview方法中相应地设置/取消选中它们。否则，当您滚动时，您选中的一个将重新显示，而不是要检查的项目。

我假设您的列表默认开始，因为没有检查？因为我看不到设置任何复选框的代码。

在创建/回收视图时，您需要一个基本上设置/取消设置的部分。（setVisibility部分旁边。）

if(<Item should be checked>) 
   chkSelect.setChecked(true);
else 
   chkSelect.setChecked(false);

或简称：

chkSelect.setChecked(<Item should be checked>);

你需要一种方法，知道哪些项目已被检查过，我认为你的AddProducts方法正在做什么？因此，请检查相关项目是否在产品列表中。

Answer 2

使用适配器中的视图持有者进行击球手表现，它也会解决一些此类问题。见this。

Answer 3

我修改了你的代码。 clickListener首次创建时需要注册。

@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null){
            convertView = mContext.getLayoutInflater().inflate(
                    R.layout.brandslayout, parent, false);
            convertView.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                Toast.makeText(YeniSahaActivity2.this, "Ürünler Araniyor...", Toast.LENGTH_SHORT).show();
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

                Spinner spnProductGroup = (Spinner)findViewById(R.id.spnBrandProduct);


                if(chkSelect.isChecked())
                {

                    ProductGroupId=UrunId.getText().toString();
                    RackPercentage= edtText.getText().toString();
                    ExistsOnRack = "1";
                    AddProducts(Integer.parseInt( spnProductGroup.getSelectedItem().toString().split("#")[1]),Integer.parseInt(UrunId.getText().toString()));
                    //Button btnSave = (Button) findViewById(R.id.btnMarkaGir);
                    //btnSave.setText("");

                }
                else
                {
                    ExistsOnRack = "0";
                    //Toast.makeText(YeniSahaActivity2.this, "Lütfen ürün grubu seçiniz...", Toast.LENGTH_SHORT).show();
                    Extras e = new Extras();
                    e.ViewAlert("Lütfen ürün grubu seçiniz...", YeniSahaActivity2.this);


                }
            }
        });
        }
        TextView UrunAdi = (TextView) convertView
                .findViewById(R.id.BrandAdi);
        final TextView UrunId = (TextView) convertView
                .findViewById(R.id.BrandId);

        final CheckBox chkSelect = (CheckBox) convertView
                .findViewById(R.id.checkBox1);

        final EditText edtText = (EditText) convertView
                .findViewById(R.id.edtOran);

        Button btnSelect = (Button) convertView
                .findViewById(R.id.btnSeciliBrand);

        final TextView tvOran = (TextView) convertView
                .findViewById(R.id.tvRateIcon);

        UrunAdi.setText(((Brands)Markalar.get(position)).BrandName);
        UrunId.setText(((Brands)Markalar.get(position)).BrandId);
        chkSelect.setVisibility(((Brands)Markalar.get(position)).deger1);
        edtText.setVisibility(((Brands)Markalar.get(position)).deger2);
        btnSelect.setVisibility(((Brands)Markalar.get(position)).deger3);
        tvOran.setVisibility(((Brands)Markalar.get(position)).deger4);



        return convertView;

    }
}

我选择了一个，但在android中选择了两个项目

3 个答案: