我让ExpandbleListView的孩子改变了他们的颜色.. 问题是，它让父母崩溃，我希望它保持打开.. 这是我的代码，请帮助我，我现在试了很长时间:)）
public class ShiftRequestsAdapter extends BaseExpandableListAdapter {
private final Context CONTEXT;
private final ArrayList<String> DAYS_NAME;
private final LinkedHashMap<String, Map<String, TreeSet<String>>> ALL_DAYS_SHIFTS;
public ShiftRequestsAdapter(LinkedHashMap<String, Map<String, TreeSet<String>>> allDayShiftRequests, Context context) {
ALL_DAYS_SHIFTS = allDayShiftRequests;
CONTEXT = context;
DAYS_NAME = new ArrayList<>(allDayShiftRequests.keySet());
}
@Override
public int getGroupCount() {
return DAYS_NAME.size();
}
@Override
public int getChildrenCount(int i) {
return 1;
}
@Override
public Object getGroup(int i) {
return DAYS_NAME.get(i);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return ALL_DAYS_SHIFTS.get(DAYS_NAME.get(groupPosition));
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(int i, boolean isExpanded, View rView, ViewGroup parent) {
if(rView == null)
rView = LayoutInflater.from(CONTEXT).inflate(R.layout.day_item, null);
LinearLayout ll = (LinearLayout)rView;
//set the day name
TextView dayName =(TextView) ll.findViewById(R.id.dayName);
dayName.setText(DAYS_NAME.get(i));
return rView;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View recycleView, ViewGroup parent) {
if(recycleView==null)
recycleView = new LinearLayout(CONTEXT);
//set vertical & remove all views from the other days
LinearLayout allShiftsLayout = (LinearLayout)recycleView;
allShiftsLayout.setOrientation(LinearLayout.VERTICAL);
allShiftsLayout.removeAllViews();
//get this day shifts
Map<String, TreeSet<String>> dayPattern = ALL_DAYS_SHIFTS.get(DAYS_NAME.get(groupPosition));
TreeSet<String> ableShifts = dayPattern.get("able") , blockShifts = dayPattern.get("block") ,allShifts = new TreeSet<>();
if (blockShifts==null)blockShifts = new TreeSet<>();
if (ableShifts == null)ableShifts = new TreeSet<>();
//if there is any shifts for this day - get them
if (!ableShifts.isEmpty() || !blockShifts.isEmpty()) {
//create set with all shifts
allShifts.addAll(blockShifts);
allShifts.addAll(ableShifts);
for (String correctShift : allShifts) {
//create view for each shift
LinearLayout shiftLayout = (LinearLayout) LayoutInflater.from(CONTEXT).inflate(R.layout.shift_req, null);
//set on click
shiftLayout.setOnClickListener(new ChangeShiftRequest(blockShifts, ableShifts, groupPosition));
//set the text shift
TextView shift = (TextView) shiftLayout.findViewById(R.id.time_text);
shift.setText(correctShift);
//check if this shift is block
for (String temp : blockShifts) {
//if found correct shift - change color
if (correctShift.compareTo(temp) == 0)
shift.setBackgroundColor(Color.parseColor("#FA5C5C"));
}
allShiftsLayout.addView(shiftLayout);
}
}
else
{
//create view
LinearLayout shiftLayout = (LinearLayout) LayoutInflater.from(CONTEXT).inflate(R.layout.shift_req, null);
//set the text shift
TextView noShift = (TextView) shiftLayout.findViewById(R.id.time_text);
noShift.setText("No Shifts");
noShift.setBackgroundColor(Color.WHITE);
allShiftsLayout.addView(shiftLayout);
}
return allShiftsLayout;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
private class ChangeShiftRequest implements View.OnClickListener
{
private final TreeSet<String> BLOCK,ABLE;
private boolean isBlock;
private int dayIndex;
ChangeShiftRequest(TreeSet<String> block,TreeSet<String> able, int day)
{
if (block==null)
BLOCK = new TreeSet<>();
else
BLOCK = block;
if (able==null)
ABLE = new TreeSet<>();
else
ABLE = able;
isBlock = false;
dayIndex = day;
}
@Override
public void onClick(View v) {
TextView textShift = (TextView) ((LinearLayout)v).getChildAt(0);
String correctShift = textShift.getText().toString();
String temp;
//search in block set
Iterator<String> iterator = BLOCK.iterator();
while (iterator.hasNext())
{
temp = iterator.next();
//find if the selected shift is in the block set(compareTo return 0 = equal)
if (correctShift.compareTo(temp) == 0) {
isBlock = true;
v.setBackgroundColor(Color.parseColor("#94F084"));
//transfer the shift to the able set
iterator.remove();
ABLE.add(correctShift);
}
}
//only if the shift isn't in the block set - search it in able set
if (!isBlock)
{
iterator = ABLE.iterator();
while (iterator.hasNext())
{
temp = iterator.next();
//find if the selected shift is in the able set(compareTo return 0 = equal)
if (correctShift.compareTo(temp)==0)
{
v.setBackgroundColor(Color.parseColor("#FA5C5C"));
//transfer the shift to the block set
iterator.remove();
BLOCK.add(correctShift);
}
}
}
Map<String, TreeSet<String>> allShifts = new HashMap<>();
allShifts.put("able",ABLE);
allShifts.put("block",BLOCK);
//get the activity data
Map<String, TreeSet<String>>[] daysReqArray = ShiftRequestsActivity.getDaysReqArray();
//update the Activity data
daysReqArray[dayIndex] = allShifts;
//set the list view with the new data
ExpandableListView newListView = ShiftRequestsActivity.getListView();
LinkedHashMap<String, Map<String, TreeSet<String>>> allDaysShift = new LinkedHashMap<>();
for (int i = 0; i<daysReqArray.length; i++)
{
allDaysShift.put(DAYS_NAME.get(i), daysReqArray[i]);
}
newListView.setAdapter(new ShiftRequestsAdapter(allDaysShift, CONTEXT));
}
}
}
答案 0 :(得分：0)
为父项提供一个变量，以便记住它是否已打开。如果已经打开，请不要关闭。所以你必须覆盖父setOnItemClickListener（AdapterView.OnItemClickListener l）