对我来说运行良好。
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
final ViewHolder holder;
final Season season = (Season) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = vi.inflate(R.layout.season, parent, false);
holder = new ViewHolder();
holder.title = (TextView) convertView.findViewById(R.id.season_title);
holder.checkBox = (CheckBox) convertView.findViewById(R.id.season_check_box);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.title.setText(season.getTitle());
holder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
season.setChecked(isChecked);
adapter.notifyDataSetChanged();
}
});
holder.checkBox.setChecked(season.isChecked()); // position is important! Must be before return statement!
return convertView;
}
protected class ViewHolder {
protected TextView title;
protected CheckBox checkBox;
}
...
viewHolder.switchView.setOnCheckedChangeListener(null);
viewHolder.switchView.setChecked(myObject.getStatus() > 0);
...
viewHolder.switchView.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
...
}
});
myObject是一个最终对象，其中存储了Cursor数据。
无论开关是否被选中，您都需要调用setChecked方法。
希望对某些人有所帮助！
我之前也遇到了类似的问题，经过大量阅读后，我是这样解决的：
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.listview, null);
holder = new ViewHolder();
holder.nameView = (TextView)convertView.findViewById(R.id.textView1);
holder.numberView = (TextView)convertView.findViewById(R.id.textView2);
holder.cb = (CheckBox)convertView.findViewById(R.id.checkBox1);
convertView.setTag(holder);
} else {
holder = (ViewHolder)convertView.getTag();
}
holder.nameView.setText(mData.get(position).toString());
holder.numberView.setText(mNumber.get(position).toString());
holder.cb.setChecked(false);
holder.cb.setTag(position);
if(selected.indexOf(mNumber.get(position).toString()) >= 0) // Check whether this row checkbox was checked, for that we previously stored the textview text in selected variable
{
holder.cb.setChecked(true);
}
return convertView;
}
}
这里我所做的是在getView（）中取消所有复选框的选中状态，然后手动重新勾选需要根据其对应的TextView检查的复选框。 因此，如果用户在选中第一个复选框后向下滚动，则视图中的所有复选框都将取消选中状态，如果再次向上滚动，则所有复选框都将取消选中状态，但是再次单击的那个复选框将再次被勾选。
@Override
public int getViewTypeCount() {
return getCount();
}
@Override
public int getItemViewType(int position) {
return position;
}
@Override
public int getCount() {
return names.length;
}
@Override
public long getItemId(int position) {
return 0;
}
在自定义适配器中添加此方法，这对我有效。
通过保持CheckBox的状态，可以轻松解决问题。下面是一个自定义且完整解释的示例类代码：
public class AreaDataAdapter extends ArrayAdapter<String> {
private List<String> areaList;
private Activity context;
ArrayList<Boolean> positionArray;
public AreaDataAdapter(Context context, int textViewResourceId,
List<String> offersAreaList) {
super(context, textViewResourceId, offersAreaList);
// TODO Auto-generated constructor stub
this.context=context;
this.areaList = offersAreaList;
positionArray = new ArrayList<Boolean>(offersAreaList.size());
for(int i =0;i<offersAreaList.size();i++){
positionArray.add(false);
}
}
public AreaDataAdapter(Activity context, List<String> offersAreaList) {
super(ShowOffersActivity.this, R.layout.filterlist_row, offersAreaList);
this.context=context;
this.areaList=offersAreaList;
positionArray = new ArrayList<Boolean>(offersAreaList.size());
for(int i =0;i<offersAreaList.size();i++){
positionArray.add(false);
}
}
public View getView(final int position, View convertView,ViewGroup parent) {
View row=convertView;
FilterViewHolder holder;
if (row==null) {
LayoutInflater inflater=getLayoutInflater();
row=inflater.inflate(R.layout.filterlist_row, parent, false);
holder = new FilterViewHolder();
holder.filterCheckBox = (CheckBox)row.findViewById(R.id.filter_checkbox);
holder.filterCheckBox.setTypeface(fontFace);
row.setTag(holder);
} else {
//holder = (View) row;
holder = (FilterViewHolder) row.getTag();
/* When a listview recycles views , it recycles its present state as well as listeners attached to it.
* if the checkbox was checked and has a onCheckedChangeListener set, both will remain a part of
* recycled view based on position. So it is our responsibility to reset all states and remove
* previous listeners.
* The listener was removed as below:-
*/
holder.filterCheckBox.setOnCheckedChangeListener(null);
}
holder.filterCheckBox.setText(areaList.get(position));
holder.filterCheckBox.setFocusable(false);
holder.filterCheckBox.setChecked(positionArray.get(position));
holder.filterCheckBox.setText(areaList.get(position));
holder.filterCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
if (isChecked) {
//change state of concern item in 'positionArray' array to 'True'
positionArray.set(position, true);
//add the checked item in to area list which used to filter offers.
filterOffersByThisAreaList.add(areaList.get(position));
} else {
//change state of concern item in 'positionArray' array to 'True'
positionArray.set(position, true);
//remove the unchecked item in to area list which used to filter offers.
filterOffersByThisAreaList.remove(areaList.get(position));
}
}
});
return row;
}
}
以下是用于ListView包含这些CheckBox的自定义行(filterlist_row)：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<CheckBox
android:id="@+id/filter_checkbox"
style="@style/CodeFont"
android:button="@drawable/bg_custom_checkbox"
android:text="Indian" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#c9c9c3" />
</LinearLayout>
自定义 CheckBox 背景的方法如下：
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/checkbox_s" android:state_checked="true"></item>
<item android:drawable="@drawable/checkbox_ns" android:state_checked="false"></item>
</selector>
getView方法中，使用checkBox.setChecked(booleanArray[position])来设置复选框是否选中。 - Randy Sugianto 'Yuku'