回收站中的 Radiogroup 不正确 [英] Radiogroup in recyclerview incorrect
本文介绍了回收站中的 Radiogroup 不正确的处理方法,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
我有一个 recyclerview,其中每个列表项都有一个带有 2 个单选按钮的单选组.如何正确存储每个无线电组的状态.这是我的代码.向上/向下滚动时,状态不正确.谢谢
I am having a recyclerview where each list item has a radiogroup with 2 radio buttons. How can I store the state of each radiogroup correctly. Here is my code. On scrolling up/down the states are incorrects. Thanks
public class ITOAdapter extends RecyclerView.Adapter<ITOAdapter.ViewHolder> {
private Context context;
private List<String> list;
private List<Model> answers;
private Client client;
private String test;
public ITOAdapter(Context context, List<String> list, Client client, String test) {
this.context = context;
this.list = list;
this.client = client;
this.answers = new ArrayList<>();
this.test = test;
for (int i=0; i<list.size(); i++) this.answers.add(new Model());
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View contactView = null;
if (viewType == Constants.VIEW_TYPE_CELL) {
contactView = inflater.inflate(R.layout.item_ito, parent, false);
}
else {
contactView = inflater.inflate(R.layout.item_ito_footer, parent, false);
}
return new ViewHolder(contactView);
}
@Override
public int getItemViewType(int position) {
return (position == list.size()-1) ? Constants.VIEW_TYPE_FOOTER : Constants.VIEW_TYPE_CELL;
}
private void setRadio(final ViewHolder holder, int selection) {
System.out.println("SELECT:" + selection);
RadioButton b1 = holder.rb0;
RadioButton b2 = holder.rb1;
b1.setChecked(false);
b2.setChecked(false);
if (selection == 0) b1.setChecked(true);
if (selection == 1) b2.setChecked(true);
}
@Override
public void onBindViewHolder(final ViewHolder vh, final int position) {
vh.pos = position;
vh.number.setText(vh.con + (position+1));
vh.question.setText(list.get(position));
setRadio(vh, answers.get(position).getState());
vh.rb_group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId != -1 ) {
RadioButton checkedRadioButton = (RadioButton) group.findViewById(checkedId);
vh.checkId = checkedId;
int checkedIndex = group.indexOfChild(checkedRadioButton);
answers.get(vh.pos).setState(checkedIndex);
setRadio(vh, answers.get(position).getState());
}
}
});
}
@Override
public int getItemCount() {
return list.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView number;
public TextViewPlus question;
public RadioGroup rb_group;
public Button btn;
public String con;
public int checkId;
public RadioButton rb0, rb1;
public int pos;
public ViewHolder(View itemView) {
super(itemView);
number = (TextView) itemView.findViewById(R.id.number);
question = (TextViewPlus) itemView.findViewById(R.id.question);
rb0 = (RadioButton) itemView.findViewById(R.id.rb0);
rb1 = (RadioButton) itemView.findViewById(R.id.rb1);
rb_group = (RadioGroup) itemView.findViewById(R.id.rb_group);
btn = (Button) itemView.findViewById(R.id.btn);
con = number.getText().toString();
}
}
private class Model{
private int state;
public Model(){
this.state = -1;
}
public Model(int state){
this.state = state;
}
public int getState() {
return state;
}
public void setState(int state) {
this.state = state;
}
}
}
推荐答案
从 onCheckedChanged 中移除 setRadio.同时删除 b1.setChecked(false);和b2.setChecked(false);来自 setRadio 并让我知道您仍然遇到问题参考 ListView with RadioGroup 在每一行
Remove setRadio from onCheckedChanged. Also remove b1.setChecked(false); and b2.setChecked(false); from setRadio and let me know still you are getting problem Reference ListView with RadioGroup in each row
if (checkedId != -1 ) {
RadioButton checkedRadioButton = (RadioButton) group.findViewById(checkedId);
vh.checkId = checkedId;
switch(checkId)
{
case R.id.rb0:
answers.get(vh.pos).setState(0);
break;
case R.id.rb1:
answers.get(vh.pos).setState(1);
break;
}
}
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