我写了一个3级可扩展列表代码，就像那样：
A
|_B
|_C
D
|_E
|_F
但是在我的列表中，每一行都包含按钮，edittexts等。我正在动态添加子项，如下面的代码所示。
我需要一些关于2件事的帮助。
1）当我点击A时，B打开但是当我点击B时，C没有显示在屏幕上。
2）当我单击A或D时，组位置不会始终改变为0，因此A总是会扩展。
您可以在下面找到以下代码，谢谢：）
我写下这些活动的开始：
public static int FIRST_LEVEL_COUNT = 1;
public static int SECOND_LEVEL_COUNT = 1;
public static int THIRD_LEVEL_COUNT = 1;
boolean firstLevel_Expanded = false;
boolean secondLevel_Expanded = false;
然后从xml调用可扩展列表视图：
demand_table = (ExpandableListView) dialog.findViewById(R.id.demandresponsetable);
demand_table.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
demand_table.setAdapter(new ParentLevel(this));
我的可扩展列表的代码在这里：
public class ParentLevel extends BaseExpandableListAdapter {
private Context context;
public ParentLevel(Context context) {
this.context = context;
}
@Override
public Object getChild(int arg0, int arg1) {
return arg1;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
SecondLevelExpandableListView secondLevelELV = new SecondLevelExpandableListView(LoadDemandResponse.this);
secondLevelELV.setAdapter(new SecondLevelAdapter(context));
secondLevelELV.setGroupIndicator(null);
return secondLevelELV;
}
@Override
public int getChildrenCount(int groupPosition) {
return SECOND_LEVEL_COUNT;
}
@Override
public Object getGroup(int groupPosition) {
return groupPosition;
}
@Override
public int getGroupCount() {
return FIRST_LEVEL_COUNT;
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.threelevel_listrow_first, null);
final long position = getGroupId(groupPosition);
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(firstLevel_Expanded == true) {
firstLevel_Expanded = false;
demand_table.expandGroup((int) position);
}
else {
firstLevel_Expanded = true;
demand_table.collapseGroup((int) position);
}
}
});
TextView text = (TextView) convertView.findViewById(R.id.Edit_eventsListEventRowText);
text.setHint("Demand Response Name");
ToggleButton toggle = (ToggleButton) convertView.findViewById(R.id.dr_status);
toggle.setText("Passıve");
toggle.setTextOff("Passıve");
toggle.setTextOn("Actıve");
toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
// The toggle is enabled
} else {
// The toggle is disabled
}
}
});
Button time = (Button) convertView.findViewById(R.id.add_time);
time.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SECOND_LEVEL_COUNT++;
}
});
}
return convertView;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
public class SecondLevelExpandableListView extends ExpandableListView {
public SecondLevelExpandableListView(Context context) {
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//999999 is a size in pixels. ExpandableListView requires a maximum height in order to do measurement calculations.
heightMeasureSpec = MeasureSpec.makeMeasureSpec(999999, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public class ThirdLevelExpandableListView extends ExpandableListView {
public ThirdLevelExpandableListView(Context context) {
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//999999 is a size in pixels. ExpandableListView requires a maximum height in order to do measurement calculations.
heightMeasureSpec = MeasureSpec.makeMeasureSpec(999999, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public class SecondLevelAdapter extends BaseExpandableListAdapter {
private Context context;
public SecondLevelAdapter(Context context) {
this.context = context;
}
@Override
public Object getGroup(int groupPosition) {
return groupPosition;
}
@Override
public int getGroupCount() {
return 1;
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.threelevel_listrow_second, null);
//text.setText("SECOND LEVEL");
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(secondLevel_Expanded == true) {
secondLevel_Expanded = false;
demand_table.expandGroup(groupPosition);
}
else {
secondLevel_Expanded = true;
demand_table.collapseGroup(groupPosition);
}
}
});
final View finalConvertView = convertView;
final EditText start = (EditText) convertView.findViewById(R.id.edit_starttime);
start.setInputType(InputType.TYPE_NULL);
start.requestFocus();
start.setHint("Start Time");
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(finalConvertView.getContext(), new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
start.setText( selectedHour + ":" + selectedMinute);
}
}, hour, minute, true);//Yes 24 hour time
mTimePicker.setTitle("Select Time");
mTimePicker.show();
}
});
final EditText end = (EditText) convertView.findViewById(R.id.edit_endtime);
end.setInputType(InputType.TYPE_NULL);
end.requestFocus();
end.setHint("End Time");
end.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(finalConvertView.getContext(), new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
end.setText( selectedHour + ":" + selectedMinute);
}
}, hour, minute, true);//Yes 24 hour time
mTimePicker.setTitle("Select Time");
mTimePicker.show();
}
});
Button offer = (Button) convertView.findViewById(R.id.add_offer);
offer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
THIRD_LEVEL_COUNT++;
}
});
}
return convertView;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(final int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
ThirdLevelExpandableListView thirdLevelELV = new ThirdLevelExpandableListView(LoadDemandResponse.this);
thirdLevelELV.setAdapter(new ThirdLevelAdapter(context));
thirdLevelELV.setGroupIndicator(null);
return thirdLevelELV;
}
@Override
public int getChildrenCount(int groupPosition) {
return THIRD_LEVEL_COUNT;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
public class ThirdLevelAdapter extends BaseExpandableListAdapter {
private Context context;
public ThirdLevelAdapter(Context context) {
this.context = context;
}
@Override
public Object getGroup(int groupPosition) {
return groupPosition;
}
@Override
public int getGroupCount() {
return 1;
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.threelevel_listrow_third, null);
EditText quantity = (EditText) convertView.findViewById(R.id.edit_quantity);
quantity.setHint("Reserve Quantity");
EditText price = (EditText) convertView.findViewById(R.id.edit_price);
price.setHint("Offered Price");
}
return convertView;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(final int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
if(convertView != null) {
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
demand_table.expandGroup(groupPosition);
}
});
}
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return THIRD_LEVEL_COUNT;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}