我有一个可扩展列表视图项目中的edittext子项.然后,我在这个edittext中输入了一个文本,但是当我点击其他可扩展列表视图标题时,我输入的文本消失了.
我已经在我的Manifest.xml和许多其他可能的修补程序中使用了android：windowSoftInputMode =“adjustPan”,但没有工作.
这是我的适配器
public class ExpendableAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader;
private HashMap<String,List<ExpandItemModel>> _listDataChild;
public ExpendableAdapter(Context context,List<String> listDataHeader,HashMap<String,List<ExpandItemModel>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition,int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition,int childPosition) {
return childPosition;
}
@Override
public View getChildView(final int groupPosition,final int childPosition,boolean isLastChild,View convertView,ViewGroup parent) {
final ExpandItemModel childText = (ExpandItemModel) getChild(groupPosition,childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item,null);
}
final EditText etTotal = (EditText)convertView
.findViewById(R.id.et_total);
etTotal.setText(childText.getTotal);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition,boolean isExpanded,ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group,null);
}
TextView tvHeader = (TextView) convertView
.findViewById(R.id.tv_header);
tvHeader.setTypeface(null,Typeface.BOLD);
tvHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition,int childPosition) {
return true;
}
}
这是布局：
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/rl_expen_but"
android:layout_below="@+id/rl_ats_draft2"
android:layout_above="@+id/selanjutnya"
>
<ExpandableListView
android:background="@color/cardview_light_background"
android:id="@+id/lvExp"
android:descendantFocusability="beforeDescendants"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:animateLayoutChanges="true"/>
<View
android:layout_below="@+id/lvExp"
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#bebebe"/>
</RelativeLayout>
上面的代码有什么问题吗？谢谢.
编辑：
这是我的代码看起来像我的chandil03建议我编辑.当展开头文件时,可扩展列表视图不再刷新.但是奇怪的是,当我在grouptext 0和child position 0中的edittext中键入值时,在不同goupposition和childposition中的某些其他edittext中,会出现与之前的edittext相同的确切值.或者甚至陌生人,以前的edittext的价值观有时被剥夺.
static class ViewHolder {
protected View et;
public void addView(View et){
this.et = et;
}
}
@Override
public View getChildView(final int groupPosition,ViewGroup parent) {
final ExpandItemModel childText = (ExpandItemModel) getChild(groupPosition,childPosition);
ViewHolder viewHolder;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item,null);
viewHolder = new ViewHolder();
viewHolder.addView(convertView
.findViewById(R.id.et_total));
convertView.setTag(viewHolder);
}else{
viewHolder = (ViewHolder)convertView.getTag();
}
final EditText etTotal = (EditText)convertView
.findViewById(R.id.et_total);
etTotal.setText(childText.getTotal);
return convertView;
}
解决方法
每当您展开另一个组列表刷新时,您将获得另一个没有文本的EditText实例.您输入文本的EditText将成为另一个groupView的子对象.
所以我建议你创建一个ViewHolder类并保持你的视图,并将其设置为一个标签,并在getView()中检查convertView是否已经完成.只需从convertView添加else part和getTag,并相应地设置值.
例如：
@Override
public View getGroupView(int groupPosition,ViewGroup parent)
{
View v = convertView;
if (v == null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = inflater.inflate(R.layout.my_layout,parent,false);
ViewHolder holder = new ViewHolder(); // View holder to save views.
holder.addView(v.findViewById(R.id.myView));
v.setTag(holder);
}
else{
ViewHolder holder = (ViewHolder) v.getTag(); // get tag and set values
// Do whatever you need to with the group view
}
return v;
}
编辑1
@Override
public View getChildView(final int groupPosition,ViewGroup parent) {
final ExpandItemModel childText = (ExpandItemModel) getChild(groupPosition,childPosition);
ViewHolder holder;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item,null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
holder.editText.setText(childText.getTotal); // Here whatever you will type in edittext will be overwritten by the value of 'childText.getTotal'. So after you are done writing in edit text make sore you change that in "_listDataChild" list.
return convertView;
}
/**This is a class that holds view,Here i m not talking about support.v7.widget.RecyclerView.ViewHolder class. Though concept is more or less same.*/
class ViewHolder{
EditText editText;
public ViewHolder(View v)
{
editText = (EditText) v.findViewById(R.id.et_total);
}
}
编辑2
holder.editText.setOnFocusChangeListener(new View.OnFocusChangeListener()
{
@Override
public void onFocusChange(View v,boolean hasFocus)
{
if(!hasFocus)
childText.getTotal = holder.editText.getText().toString();
// In java variable contains reference of Object so when you change childText object,it will be reflected in same HashMap you are getting data from.
}
});
