Question

我正在使用CustomAdapter创建一个ListView。每个ListView的行都有一个切换按钮，我在此library中使用了该按钮。所以这是我的适配器代码

public View getView(final int position, @Nullable View convertView, @NonNull ViewGroup parent) {
    Attendance attendance = getItem(position);

    if(convertView==null){
        convertView = LayoutInflater.from(context).inflate(R.layout.student_attendance_list_model,parent,false);
        holder = new ViewHolder();
        holder.studentName = (TextView)convertView.findViewById(R.id.student_name);
        holder.studentSchool = (TextView)convertView.findViewById(R.id.student_school);
        holder.bulletIcon = (ImageView) convertView.findViewById(R.id.bullet_img);
        holder.toggleButton = (TriStateToggleButton) convertView.findViewById(R.id.tri_state_toggle);
        holder.yesText = (TextView)convertView.findViewById(R.id.yes_btn);
        holder.noText = (TextView)convertView.findViewById(R.id.no_btn);
        holder.toggleButton.setOnToggleChanged(new TriStateToggleButton.OnToggleChanged() {
            @Override
            public void onToggle(TriStateToggleButton.ToggleStatus toggleStatus, boolean b) {
                switch (toggleStatus){
                    case off:
                        holder.yesText.setTextColor(context.getResources().getColor(R.color.green));
                        holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
                        break;
                    case mid:
                        holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
                        holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
                        break;
                    case on:
                        holder.noText.setTextColor(context.getResources().getColor(R.color.trial_color));
                        holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
                        break;
                }
            }
        });
        convertView.setTag(holder);
    }
    else{
        holder = (ViewHolder)convertView.getTag();
    }
    holder.toggleButton.setOnToggleChanged(new TriStateToggleButton.OnToggleChanged() {
        @Override
        public void onToggle(TriStateToggleButton.ToggleStatus toggleStatus, boolean b) {
            LogHelper.debug(getClass(),"pos = "+position);
            switch (toggleStatus){
                case off:
                    holder.yesText.setTextColor(context.getResources().getColor(R.color.green));
                    holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
                    break;
                case mid:
                    holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
                    holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
                    break;
                case on:
                    holder.noText.setTextColor(context.getResources().getColor(R.color.trial_color));
                    holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
                    break;
            }
        }
    });

    holder.studentName.setText(attendance.getUserInformation().getFullName());
    holder.studentSchool.setText(attendance.getUserInformation().getSchool());
    try {
        switch (attendance.getUserInformation().getStatus()) {
            case ("enroll"):
                holder.bulletIcon.setImageResource(R.drawable.enrollment_circle);
                break;
            case ("transfer"):
                holder.bulletIcon.setImageResource(R.drawable.transfer_circle);
                break;
            case ("trial"):
                holder.bulletIcon.setImageResource(R.drawable.trial_circle);
                break;
            case ("replace"):
                holder.bulletIcon.setImageResource(R.drawable.replacement_circle);
                break;
        }
    }catch (Exception e){e.printStackTrace();}

    switch (attendance.getAttend()){
        case ("true"):
            holder.yesText.setTextColor(context.getResources().getColor(R.color.green));
            holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
            holder.toggleButton.setToggleOff();
            break;
        case ("false"):
            holder.noText.setTextColor(context.getResources().getColor(R.color.trial_color));
            holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
            holder.toggleButton.setToggleOn();
            break;
        default:
            //holder.toggleButton.setMidColor(context.getResources().getColor(R.color.grey_87));
            holder.toggleButton.setToggleMid();
            holder.noText.setTextColor(context.getResources().getColor(R.color.black_text));
            holder.yesText.setTextColor(context.getResources().getColor(R.color.black_text));
            break;
    }
    return convertView;
}


class ViewHolder {
    TextView studentName;
    TextView studentSchool;
    ImageView bulletIcon;
    TriStateToggleButton toggleButton;
    TextView yesText;
    TextView noText;

}

当我更改切换状态时，它返回正确的行的位置，但其yesText和noText不会改变颜色。相反，每次单击任何切换时，触发最后一项中的yesText和noText都会更改其颜色。

Button onClick get wrong position in viewholder patterned listview

上面的

链接与我的问题完全相同，但在我的情况下，我不了解notifyDataSetChanged（）的实现。

由于

Answer 1

删除代码以设置switch中toggleChangeListener块的文本颜色，而是使用＆＃34更新该位置的对象; true＆＃34;，＆＃34; false＆＃34;和默认值，然后调用notifyDataSetChanged

ListView中的事件监听器与ViewHolder模式触发错误的项目

1 个答案: