如何检查ListView中的复选框并更改listView中同一行的文本？答案

【问题标题】：how to check the check box in ListView and change the text in same row in listView?如何检查ListView中的复选框并更改listView中同一行的文本？
【发布时间】：2018-01-25 19:53:17
【问题描述】：

我有带有复选框和文本视图的列表视图。当我选中复选框时，更改同一行中的文本。这样我将检查列表视图中的所有复选框并更改每一行中的文本。谁能用示例代码解释一下？

public class DialogAdapter extends BaseAdapter{
    //private LayoutInflater inflater = null;
    ArrayList<String> timeList = new ArrayList<String>(); 
    Context context;

    public DialogAdapter(Context context, ArrayList<String> timeList) {
        // TODO Auto-generated constructor stub         

        this.context = context;
        this.timeList = timeList;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        //return timings.size();
        return timeList.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return timeList.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @SuppressLint("ViewHolder")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        //String timing = "10-30,14-08,16-30,19-00";
        LayoutInflater inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.dialog_row_list,null);

        //timeListView.setVisibility(convertView.VISIBLE);

        TextView txt_time=(TextView) convertView.findViewById(R.id.text_times);
        txt_time.setText(timeList.get(position).toString());

        EditText comments=(EditText)convertView.findViewById(R.id.editText_comment);


        final TextView txt_Action=(TextView) convertView.findViewById(R.id.textView_act);

        CheckBox cBox= (CheckBox) convertView.findViewById(R.id.checkBox_action);

        cBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @SuppressLint("ResourceAsColor")
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                // TODO Auto-generated method stub
                int getPosition = (Integer) buttonView.getTag(); 
                 timeList.get(getPosition).setSelected(buttonView.isChecked());
                 Toast.makeText(context, "position"+getPosition, 0).show();
                 if(isChecked){
                        txt_Action.setText("finished");
                        txt_Action.setTextColor(R.color.Green);
                    }
                    else{
                        txt_Action.setText("UnChecked");
                        txt_Action.setTextColor(R.color.Red);
                    }
            }


        });


        return convertView;
    }

}

这是我的代码，请检查n给出解决方案如何在检查列表视图中的复选框时更改列表视图文本？？？

【问题讨论】：

标签： android listview checkbox textview

【解决方案1】：

在ListView 适配器的getView 方法中：

if(yourCheckBox.isChecked)
           yourTextView.setText("text if checkBox is checked.");
else
           yourTextView.setText("text if checkBox is not checked.");

【讨论】：

【解决方案2】：

checkboxes 和texviews 之前有视图，即listview，如果您想从listview 访问textviews，请确保您是从listview 访问的一项布局喜欢

TextView txtvw=findViewByID(ur_layout_of_list_item).findViewByID(ur_textview);

之后将完成更改。

【讨论】：

【解决方案3】：

首先，我建议您对 listview 适配器使用 ViewHolder 模式，这样您就不需要在每次滚动列表时都执行 findViewById() 这将防止您的 listview 性能下降，而且我更喜欢使用 @987654322 @以上CheckedChangeListener()。

以下是您可以尝试的示例代码

public class CustomAdapter  extends BaseAdapter {

    private Context context;
    public static ArrayList<Item> modelArrayList;


    public CustomAdapter(Context context, ArrayList<Item> modelArrayList){

        this.context = context;
        this.modelArrayList = modelArrayList;

    }

    @Override
    public int getViewTypeCount() {
        return getCount();
    }

    @Override
    public int getItemViewType(int position) {
        return position;
    }

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

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

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent){
        ViewHolder viewHolder;

    if (convertView == null) {
        convertView = LayoutInflater.from(context).inflate(R.layout.layout_list_view_row_items, parent, false);
        viewHolder = new ViewHolder(convertView);
        convertView.setTag(viewHolder);
    } else {
        viewHolder = (ViewHolder) convertView.getTag();
    }

    Item currentItem = (Item) getItem(position);
    if(currentItem.isChecked())
        viewHolder.tvName.setText("Checked);
    else
        viewHolder.tvName.setText("Unchecked);

    viewHolder.checkBox.setChecked(currentItem.isChecked());
    viewHolder.checkBox.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        final boolean checked = currentItem.isChecked();
        if(checked){
           viewHolder.checkBox.setChecked(!checked);
           viewHolder.tvName.setText("Unchecked");
           currentItem.setChecked(!checked);  
        }else{
           viewHolder.checkBox.setChecked(checked);
           viewHolder.tvName.setText("Checked");
           currentItem.setChecked(checked);  

        }

    }

  });
    return convertView;
    }

private class ViewHolder {

    protected CheckBox checkBox;
    private TextView tvName;

    public ViewHolder(View view) {
        checkBox = (CheckBox)view.findViewById(R.id.checkbox);
        tvName = (TextView) view.findViewById(R.id.textView);
    }

}
}

【讨论】：