而滚动的动态生成单选按钮改变其位置 [英] Dynamically generated Radio button changes its position while scrolling
本文介绍了而滚动的动态生成单选按钮改变其位置的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经动态创建单选按钮。而它们显示相当不错，但是当我选择并滚动它失去了它的地位。我知道设置和获取与ViewHolder类标签转换和视图的方式。但是这一次，我有动态的ID，所以我不能标签ID。我曾尝试这样
converview.setTag（rdbtn.getId（），rdbtn）;
但它抛出密钥必须是专用的资源ID 。
下面是我的自定义适配器类
静态类FeedBacksubmitionViewHolder {
TextView的保护问题;
受保护的EditText Cooment;
受保护的ViewGroup RadioGroup中;
保护的TextView Q;}
公共查看getView（INT位置，查看converview，父母的ViewGroup）{
FeedBacksubmitionViewHolder viewHolder = NULL;
如果（converview == NULL）{
LayoutInflater吹气= context.getLayoutInflater（）;
converview = inflater.inflate（R.layout.listfeedbacksubmitionquestion，空，真）;
viewHolder =新FeedBacksubmitionViewHolder（）; viewHolder.Question =（TextView中）converview.findViewById（R.id.tvFeedbacksubmitionquestion）;
viewHolder.Cooment =（EditText上）converview.findViewById（R.id.edfeedbacksubmitioncomment）;
viewHolder.Radiogroup =（（ViewGroup中）converview findViewById（R.id.radiogroup））;
viewHolder.Q =（TextView中）converview.findViewById（R.id.feedba1）; LL的LinearLayout =新的LinearLayout（背景）;
ll.setOrientation（LinearLayout.VERTICAL）;
INT数= feedBackSubmitionOptionList.size（）; //if(position!=feedBackSubmitionQuestionList.size()-1 ||）
的for（int i = 0; I＆LT;数;我++）{
//if(ll.getChildAt(0).getId（）！= feedBackSubmitionOptionList.get（ⅰ）.getId（））{
单选rdbtn =新的单选按钮（背景）;
rdbtn.setId（feedBackSubmitionOptionList.get（ⅰ）.getId（））;
rdbtn.setText（feedBackSubmitionOptionList.get（ⅰ）.getOptionLabel（））;
ll.addView（rdbtn）;
converview.setTag（rdbtn.getId（），rdbtn）; //}
} converview.setTag（viewHolder）;
converview.setTag（R.id.tvFeedbacksubmitionquestion，viewHolder.Question）;
converview.setTag（R.id.edfeedbacksubmitioncomment，viewHolder.Cooment）;
converview.setTag（R.id.radiogroup，viewHolder.Radiogroup）;
converview.setTag（R.id.feedba1，viewHolder.Q）; viewHolder.Radiogroup.addView（Ⅱ）;
}其他{
viewHolder =（FeedBacksubmitionViewHolder）converview.getTag（）; }
解决方案
我这个问题最后的日子里挣扎，但这样做R＆放大器; N有问题解决了。
你可以做这样的事情。
@覆盖
公共查看getView（最终诠释的立场，观点convertView，父母的ViewGroup）{
// TODO自动生成方法存根//如果（位置== 0）// Toast.makeText（上下文，+ QuestionViewPageAdapter.mRadioGroupData，Toast.LENGTH_SHORT）.show（）; 最后ViewHolder viewHolder;
查看排= convertView; 单选按钮=新的单选按钮[的Integer.parseInt（mNoOfCategoryGreading）]; LayoutInflater气筒=LayoutInflater.from(context);//(LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
行= inflater.inflate（R.layout.question_row，父母，假）; viewHolder =新ViewHolder（）; viewHolder.tv_qContent =（TextView中）row.findViewById（R.id.tv_question）;
viewHolder.rg =（RadioGroup中）row.findViewById（R.id.rgrp）; 的for（int i = 0; I＆LT;的Integer.parseInt（mNoOfCategoryGreading）;我++）
{
单选按钮[i] =新的单选按钮（背景）;
单选按钮[I] .setLayoutParams（新RadioGroup.LayoutParams（0，LayoutParams.WRAP_CONTENT，1F））;
// 1F为layout_weight =1
RADIOBUTTON [I] .setId（ⅰ）;
RADIOBUTTON [I] .setText（+第（i + 1））; viewHolder.rg.addView（单选[I]）;
}
row.setTag（viewHolder）;
的for（int i = 0; I＆LT; QuestionViewPageAdapter.mRadioGroupData.size（）;我++）{
INT P =的Integer.parseInt（+ QuestionViewPageAdapter.mRadioGroupData.get（I）获得（位置））;
字符串ID = QuestionViewPageAdapter.mRadioGroupData.get（I）获得（ID）;
如果（P = - 1安培;！＆安培; id.equals（+ data.get（位置）获得（AppData.question_Set_category_QuestionID）））
{//radioButton[p].setSelected(true）;
viewHolder.rg.check（P-1）;} // Toast.makeText（上下文，是+ P，Toast.LENGTH_LONG）.show（）;} viewHolder.tv_qContent.setText（（位置+ 1）+。 + data.get（位置）获得（AppData.question_Set_category_QuestionContent））;
viewHolder.tv_qContent.setTypeface（typeface_muso_regular300）; viewHolder.rg.setOnCheckedChangeListener（新OnCheckedChangeListener（）{ @覆盖
公共无效onCheckedChanged（RadioGroup中组，诠释checkedId）{
// TODO自动生成方法存根 字符串s = data.get（位置）获得（AppData.question_Set_category_QuestionID）;
isAvailabel（多个）;
INT radioButtonID = viewHolder.rg.getCheckedRadioButtonId（）;
查看单选按钮= viewHolder.rg.findViewById（radioButtonID）;
INT IDX = viewHolder.rg.indexOfChild（单选）
HashMap的＆LT;字符串，字符串＆GT;地图=新的HashMap＆LT;字符串，字符串＆GT;（）;
map.put（位置，+（IDX + 1））;
map.put（ID，+ data.get（位置）获得（AppData.question_Set_category_QuestionID））;
map.put（类别ID，+ mCategoryId）;
QuestionViewPageAdapter.mRadioGroupData.add（地图）;
}
}）; 返回行;
}私人无效isAvailabel（字符串QID）{ 的for（int i = 0; I＆LT; QuestionViewPageAdapter.mRadioGroupData.size（）;我++）{
如果（qId.equals（QuestionViewPageAdapter.mRadioGroupData.get（I）获得（ID）））{
位置=我; QuestionViewPageAdapter.mRadioGroupData.remove（ⅰ）;
}
}} 类ViewHolder {
TextView的tv_qContent，TV_1，tv_2，tv_3;
RadioGroup中RG;
单选rBtn1，rBtn2，rBtn3，rBtn4，rBtn5;
}
我无法删除code，是不是对你很重要得多。你必须学习code，我想你会得到的想法。
给予好评，如果我解决您的问题。
I have created dynamically Radio Buttons .And they are displayed quite well, but when I select and scroll it loses its position. I know the way of setting and getting the tag with ViewHolder class and convert view . but this time, I have dynamic ids, so I cant tag id . i have tried like this
converview.setTag(rdbtn.getId(),rdbtn);
But it throws The key must be an application specific Resource id.
Here is my Custom Adapter Class
static class FeedBacksubmitionViewHolder {
protected TextView Question;
protected EditText Cooment;
protected ViewGroup Radiogroup;
protected TextView Q;
}
public View getView(int position,View converview,ViewGroup parent) {
FeedBacksubmitionViewHolder viewHolder = null;
if (converview ==null ){
LayoutInflater inflater=context.getLayoutInflater();
converview=inflater.inflate(R.layout.listfeedbacksubmitionquestion, null,true);
viewHolder = new FeedBacksubmitionViewHolder();
viewHolder.Question = (TextView) converview.findViewById(R.id.tvFeedbacksubmitionquestion);
viewHolder.Cooment = (EditText) converview.findViewById(R.id.edfeedbacksubmitioncomment);
viewHolder.Radiogroup=((ViewGroup)converview. findViewById(R.id.radiogroup));
viewHolder.Q =(TextView)converview.findViewById(R.id.feedba1);
LinearLayout ll = new LinearLayout(context);
ll.setOrientation(LinearLayout.VERTICAL);
int number = feedBackSubmitionOptionList.size();
//if(position!=feedBackSubmitionQuestionList.size()-1 || )
for (int i = 0; i < number; i++) {
//if(ll.getChildAt(0).getId()!=feedBackSubmitionOptionList.get(i).getId()){
RadioButton rdbtn = new RadioButton(context);
rdbtn.setId(feedBackSubmitionOptionList.get(i).getId());
rdbtn.setText(feedBackSubmitionOptionList.get(i).getOptionLabel());
ll.addView(rdbtn);
converview.setTag(rdbtn.getId(),rdbtn);
//}
}
converview.setTag(viewHolder);
converview.setTag(R.id.tvFeedbacksubmitionquestion,viewHolder.Question);
converview.setTag(R.id.edfeedbacksubmitioncomment,viewHolder.Cooment);
converview.setTag(R.id.radiogroup,viewHolder.Radiogroup);
converview.setTag(R.id.feedba1,viewHolder.Q);
viewHolder.Radiogroup.addView(ll);
}else{
viewHolder= (FeedBacksubmitionViewHolder)converview.getTag();
}
解决方案
I struggled with this issue last days, but doing R&N got the issue solved. you can do something like this.
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub// if(position==0)//Toast.makeText(context, ""+QuestionViewPageAdapter.mRadioGroupData, Toast.LENGTH_SHORT).show();
final ViewHolder viewHolder;
View row=convertView;
radioButton=new RadioButton[Integer.parseInt(mNoOfCategoryGreading)]; LayoutInflater inflater =LayoutInflater.from(context);//(LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.question_row, parent, false);
viewHolder=new ViewHolder();
viewHolder.tv_qContent=(TextView)row.findViewById(R.id.tv_question);
viewHolder.rg=(RadioGroup)row.findViewById(R.id.rgrp);
for(int i=0;i<Integer.parseInt(mNoOfCategoryGreading);i++)
{
radioButton[i]=new RadioButton(context);
radioButton[i].setLayoutParams(new RadioGroup.LayoutParams(0, LayoutParams.WRAP_CONTENT,1f));
//1f for layout_weight="1"
radioButton[i].setId(i);
radioButton[i].setText(""+(i+1));
viewHolder.rg.addView(radioButton[i]);
}
row.setTag(viewHolder);
for(int i=0;i<QuestionViewPageAdapter.mRadioGroupData.size();i++){
int p=Integer.parseInt(""+QuestionViewPageAdapter.mRadioGroupData.get(i).get("position"));
String id=QuestionViewPageAdapter.mRadioGroupData.get(i).get("Id");
if(p!=-1 && id.equals(""+data.get(position).get(AppData.question_Set_category_QuestionID)))
{//radioButton[p].setSelected(true);
viewHolder.rg.check(p-1);}//Toast.makeText(context, "Yes "+p, Toast.LENGTH_LONG).show();}viewHolder.tv_qContent.setText((position+1)+". "+data.get(position).get(AppData.question_Set_category_QuestionContent));
viewHolder.tv_qContent.setTypeface(typeface_muso_regular300);
viewHolder.rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
String s=data.get(position).get(AppData.question_Set_category_QuestionID);
isAvailabel(s);
int radioButtonID = viewHolder.rg.getCheckedRadioButtonId();
View radioButton = viewHolder.rg.findViewById(radioButtonID);
int idx = viewHolder.rg.indexOfChild(radioButton);
HashMap<String, String> map=new HashMap<String, String>();
map.put("position", ""+(idx+1));
map.put("Id", ""+data.get(position).get(AppData.question_Set_category_QuestionID));
map.put("CategoryId", ""+mCategoryId);
QuestionViewPageAdapter.mRadioGroupData.add(map);
}
});
return row;
}
private void isAvailabel(String qId){
for(int i=0;i<QuestionViewPageAdapter.mRadioGroupData.size();i++){
if(qId.equals(QuestionViewPageAdapter.mRadioGroupData.get(i).get("Id"))){
position=i;
QuestionViewPageAdapter.mRadioGroupData.remove(i);
}
}
}
class ViewHolder {
TextView tv_qContent ,tv_1,tv_2,tv_3;
RadioGroup rg;
RadioButton rBtn1,rBtn2,rBtn3,rBtn4,rBtn5;
}
I couldn't remove the code that is not much important for you. you have to study the code and i think you will get the idea. Upvote if i solve your issue.
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