问题描述
我有一些问题,我的ListView自定义适配器(其新实施的viewHolder)。我有每个项目的复选框(没有什么新意)一个ListView。问题是,如果有超过9个项目在我的名单,当我检查第一个复选框,第十会自动检查(同为第二次与第11号),就像如果有一个侦听两个项目(和我beleive它以某种方式的情况下)。
I've some problems with my ListView custom adapter (and its newly implemented viewHolder). I have a ListView with a checkbox for each item (nothing new here). The problem is, if there is more than 9 items in my list, when I check the first checkbox, the tenth will be automatically checked (same for the second with the eleventh) just like if there were one listener for both item (and I beleive it's the case in some way).
我读到与ListView中的位置问题,查看回收及ViewHolder的方式在这里解决:How我可以让我的ArrayAdapter按照ViewHolder模式?
I read about the position issue with listView, view recycling and the ViewHolder way to solve it here: How can I make my ArrayAdapter follow the ViewHolder pattern?
不过,我可能做一些错误的,因为它不工作...
But I probably made something wrong because it's not working...
public class PresenceListAdapter extends SimpleAdapter {
private LayoutInflater inflater;
private List<Integer> ids;
private List<String> statuts;
public PresenceListAdapter (Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to, List<Integer> ids, List<String> statuts)
{
super (context, data, resource, from, to);
inflater = LayoutInflater.from (context);
this.ids = ids;
this.statuts= statuts;
}
@Override
public Object getItem (int position)
{
return super.getItem (position);
}
@Override
public View getView (int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
if (convertView == null)
{
convertView = inflater.inflate (R.layout.list_text_checkbox, null);
holder = new ViewHolder();
holder.btn = (Button) convertView.findViewById(R.id.btnRetard);
holder.check = (CheckBox) convertView.findViewById(R.id.checkPresent);
if (statuts.get(position).equals("P")) {
Drawable img = inflater.getContext().getResources().getDrawable(android.R.drawable.presence_online);
holder.btn.setCompoundDrawablesWithIntrinsicBounds( img, null, null, null );
holder.btn.setEnabled(true);
holder.check.setChecked(true);
}
else if(statuts.get(position).equals("R"))
{
Drawable img = inflater.getContext().getResources().getDrawable(android.R.drawable.presence_away);
holder.btn.setCompoundDrawablesWithIntrinsicBounds( img, null, null, null );
holder.btn.setEnabled(true);
holder.check.setChecked(true);
}
else
{
Drawable img = inflater.getContext().getResources().getDrawable(android.R.drawable.presence_invisible);
holder.btn.setCompoundDrawablesWithIntrinsicBounds( img, null, null, null );
holder.check.setChecked(false);
}
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
int id = ids.get(position);
if(id != 0)
{
holder.check.setTag(id);
holder.btn.setTag(id);
}
return super.getView (position, convertView, parent);
}
static class ViewHolder {
Button btn;
CheckBox check;
}
和我的听众: 公共无效换present(视图v){
And my listener: public void changerPresent(View v) {
CheckBox checkPresent = (CheckBox) v;
int idPersonne = (Integer) checkPresent.getTag();
View parent = (View)v.getParent();
Button btn = (Button) parent.findViewById(R.id.btnRetard);
if(checkPresent.isChecked()) {
gestion.updatePresence(idPersonne, idSeance, "P");
btn.setEnabled(true);
setBtnRetardPresent(btn);
}
else
{
gestion.updatePresence(idPersonne, idSeance, "A");
btn.setEnabled(false);
setBtnRetardAbsent(btn);
}
}
我会AP preciate在这一点上的任何帮助,我在这方面的工作了几个小时了。
I would appreciate any help at this point, I'm working on this for hours now.
非常感谢你。
推荐答案
这是一个很微妙的。我很惊讶的Android还没有简化,这是如何实现的,到这一天 - 在列表视图复选框都应该是基本
This is a tricky one. I'm surprised Android has not yet simplified how this is implemented, up to this day - checkboxes on ListViews are supposed to be basic.
总之,这里是我如何使它的工作:
Anyway, here's how I made it work:
首先,您需要为您的选中状态一个单独的数组。它必须是大小相同的适配器 getCount将()
。
First, you need a separate array for your checked state. It has to be the same size as your adapter's getCount()
.
然后在你的getView,您的复选框的setOnCheckedChangedListener必须preCEED您checkbox.setChecked语句。
Then on your getView, your checkbox's setOnCheckedChangedListener MUST PRECEED your checkbox.setChecked statements.
例如:
(是器isChecked独立阵列我提到你的支票状态)
(isChecked is the separate array i mentioned for your check state)
holder.checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
isChecked[position] = isChecked;
}
});
holder.checkBox.setChecked(isChecked[position]);
这篇关于ListView控件Viewholder复选框状态的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!