I have a check list (Customized expandable list view) that I am populating through adapter. I want to retrieve an array from adapter to Activity on click of a text view in activity.
Activity is as follows, I want to retrieve data in onOptionsItemSelected function:
public class MyPreferencesActivity extends BaseActivity implements PreferencesContract.View, AdapterView.OnItemClickListener, ExpandableListView.OnGroupClickListener {
private PreferencesContract.Presenter mPresenterPreferences;
private Context context;
private ExpandableListView elvListView;
private ArrayList<CategoryModel> categories;
private ExpandableListAdapter ela;
private List<CategoryModel> mCategories;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_preferences);
this.context = this;
Toolbar toolbar = (Toolbar) findViewById(R.id.tool_bar);
setupActionbar(toolbar, getString(R.string.preferneces), true, R.drawable.ab_home);
new PreferencesPresenter(this,
Injection.provideUseCaseHandler(),
Injection.provideGetCategories(getApplicationContext())
);
mPresenterPreferences.getCategories();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_save_my_preferences, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem menuItem) {
//listener for home
switch (menuItem.getItemId()) {
case R.id.menu_create_event:
break;
}
return super.onOptionsItemSelected(menuItem);
}
private void populateList() {
categories = new ArrayList<>();
for (int i = 0; i < mCategories.size(); i ++){
categories.add(new CategoryModel(mCategories.get(i).getCategoryName(), mCategories.get(i).getCategoryId(), mCategories.get(i).getSubCategories()));
}
}
#Override
public void onItemClick(AdapterView<?> adapterView, android.view.View view, int i, long l) {
}
#Override
public boolean onGroupClick(ExpandableListView expandableListView, android.view.View view, int i, long l) {
return false;
}
#Override
public void setLoading(boolean isActive) {}
public void initViews(){
ela = new ExpandableListAdapter(this, categories);
elvListView = (ExpandableListView) findViewById(R.id.lv_preferences);
elvListView.setAdapter(ela);
elvListView.setOnItemClickListener(this);
elvListView.setOnGroupClickListener(this);
}
#Override
public void showGetPreferencesSuccess(List<CategoryModel> categories) {
setLoading(false);
mCategories = categories;
populateList();
initViews();
}
#Override
public void showGetPreferencesFail(int errorCode) {
}
#Override
public void setPresenter(PreferencesContract.Presenter presenter) {
mPresenterPreferences = Preconditions.checkNotNull(presenter);
}
}
Adapter is as follows:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context context;
private ArrayList<String> item;
private ArrayList<Boolean> itemsChecked;
private ArrayList<ArrayList<Boolean>> childChecked;
private ArrayList<ArrayList<String>> childList;
public ExpandableListAdapter(Context c, ArrayList<CategoryModel> d) {
this.context = c;
this.item = new ArrayList<>();
for (int i = 0; i< d.size(); i++){
this.item.add(d.get(i).getCategoryName());
ArrayList<String> subCat = new ArrayList<>();
for (int j = 0 ; j < d.get(j).getSubCategories().size() ; j++){
subCat.add(d.get(j).getSubCategories().get(j).getSubCategoryName());
}
childList.add(subCat);
}
itemsChecked = new ArrayList<>();
childChecked = new ArrayList<ArrayList<Boolean>>();
for (int i = 0; i < this.item.size() ; i++) {
itemsChecked.add(false);
ArrayList <Boolean>temp = new ArrayList<>();
for (int j = 0 ; j < childList.get(i).size(); j ++){
temp.add(false);
}
childChecked.add(temp);
}
}
#Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, final ViewGroup parent) {
LayoutInflater infalInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.my_preferences_list_group, null);
TextView tvName = (TextView) convertView.findViewById(R.id.tvGroupName);
final CheckBox checkBox = (CheckBox)convertView.findViewById(R.id.checkbox);
if((getChildrenCount(groupPosition) == 0 && itemsChecked.get(groupPosition))|| (getChildrenCount(groupPosition) > 0 && !(childChecked.get(groupPosition).contains(false)))) {
checkBox.setChecked(true);
}
else {
checkBox.setChecked(false);
}
checkBox.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
CheckBox checkBox = (CheckBox)view;
RelativeLayout vwParentRow = (RelativeLayout)view.getParent();
TextView child = (TextView)vwParentRow.getChildAt(0);
final int position = item.indexOf(child.getText());
if (checkBox.isChecked()){
itemsChecked.set(position, true);
for (int i = 0 ; i < getChildrenCount(groupPosition); i++){
childChecked.get(groupPosition).set(i, true);
}
}
else {
itemsChecked.set(position, false);
for (int i = 0 ; i < getChildrenCount(groupPosition); i++){
childChecked.get(groupPosition).set(i, false);
}
}
ExpandableListAdapter.this.notifyDataSetChanged();
}
});
TextView tvCount = (TextView) convertView.findViewById(R.id.tv_item_count);
tvName.setText(item.get(groupPosition));
int childCount = getChildrenCount(groupPosition);
if (childCount > 0) {
tvCount.setText(getChildrenCount(groupPosition) + "items");
tvCount.setVisibility(View.VISIBLE);
}
if (isExpanded) {
}
else {
}
return convertView;
}
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
LayoutInflater infalInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.my_preferences_list_item, null);
TextView tvName = (TextView) convertView.findViewById(R.id.tv_item);
CheckBox checkBox = (CheckBox)convertView.findViewById(R.id.checkBox);
if (childChecked.get(groupPosition).get(childPosition))
checkBox.setChecked(true);
checkBox.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
CheckBox checkBox = (CheckBox)view;
RelativeLayout vwParentRow = (RelativeLayout)view.getParent();
TextView child = (TextView)vwParentRow.getChildAt(0);
int position = -1;
for (int i = 0 ; i < childList.size(); i++){
if (childList.get(i).contains(child.getText())){
if(checkBox.isChecked()) {
childChecked.get(i).set(childList.get(i).indexOf(child.getText()) , true);
ExpandableListAdapter.this.notifyDataSetChanged();
}
else {
childChecked.get(i).set(childList.get(i).indexOf(child.getText()) , false);
ExpandableListAdapter.this.notifyDataSetChanged();
}
}
}
if (checkBox.isChecked()){
if (position >0 )
itemsChecked.set(position, true);
}
else if(position > 0) {
itemsChecked.set(position, false);
}
}
});
String s = childList.get(groupPosition).get(childPosition);
tvName.setText(s);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return childList.get(groupPosition).size();
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return childList.get(groupPosition).get(childPosition);
}
#Override
public int getGroupCount() {
return item.size();
}
#Override
public Object getGroup(int groupPosition) {
return item.get(groupPosition);
}
#Override
public long getGroupId(int groupPosition) {
return 0;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return 0;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
I have an idea of sending data from Activity to Adapter.
Any help in doing it some other way?
I think it's as simple as creating a getter inside your adapter
public List<String> getItems() {
return this.item;
}
And inside onOptionsItemSelected in the activity
ela.getItems();
Related
I have an expandable list View that has a check button, but the problem is I can only add one child item.
dataItem.setSubCategory(arSubCategory);
arCategory.add(dataItem);
dataItem = new DataItem();
dataItem.setCategoryName("Art");
arSubCategory = new ArrayList<>();
for(int j = 1; j < 6; j++) {
SubCategoryItem subCategoryItem = newSubCategoryItem();
subCategoryItem.setIsChecked(ConstantManager.CHECK_BOX_CHECKED_FALSE);
subCategoryItem.setSubCategoryName("Art: "+j);
arSubCategory.add(subCategoryItem);
}
I have tried to use but this has no check
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("do this and do that");
listDataHeader.add("do this and don't do that");
listDataHeader.add("don't do that but you can do this");
// Adding child data
List<String> 250 = new ArrayList<String>();
250.add("hmm what is this you doing");
// Header, Child data
listDataChild.put(listDataHeader.get(0), 250);
}
but the thing is that one is HashMap<String, List<String>>() and the other is ArrayList<ArrayList<HashMap<String, String>>> so it can work.
Is there a way I can make the first code add more item?
This is the adapter
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;
import com.apps.ayodkay.services.R;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class MyCategoriesExpandableListAdapter extends
BaseExpandableListAdapter {
public static ArrayList<ArrayList<HashMap<String, String>>> childItems;
public static ArrayList<HashMap<String, String>> parentItems;
// private final ArrayList<HashMap<String, String>> childItems;
private LayoutInflater inflater;
private Activity activity;
private HashMap<String, String> child;
private int count = 0;
private boolean isFromMyCategoriesFragment;
public MyCategoriesExpandableListAdapter(Activity activity, ArrayList<HashMap<String, String>> parentItems,
ArrayList<ArrayList<HashMap<String, String>>> childItems,boolean isFromMyCategoriesFragment) {
MyCategoriesExpandableListAdapter.parentItems = parentItems;
MyCategoriesExpandableListAdapter.childItems = childItems;
this.activity = activity;
this.isFromMyCategoriesFragment = isFromMyCategoriesFragment;
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getGroupCount() {
return parentItems.size();
}
#Override
public int getChildrenCount(int groupPosition) {
return (childItems.get(groupPosition)).size();
}
#Override
public Object getGroup(int i) {
return null;
}
#Override
public Object getChild(int i, int i1) {
return null;
}
#Override
public long getGroupId(int i) {
return 0;
}
#Override
public long getChildId(int i, int i1) {
return 0;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public View getGroupView(final int groupPosition, final boolean b, View convertView, ViewGroup viewGroup) {
final ViewHolderParent viewHolderParent;
if (convertView == null) {
if(isFromMyCategoriesFragment) {
convertView = inflater.inflate(R.layout.group_list_layout_my_categories, null);
}else {
convertView = inflater.inflate(R.layout.group_list_layout_choose_categories, null);
}
viewHolderParent = new ViewHolderParent();
viewHolderParent.tvMainCategoryName = convertView.findViewById(R.id.tvMainCategoryName);
viewHolderParent.cbMainCategory = convertView.findViewById(R.id.cbMainCategory);
viewHolderParent.ivCategory = convertView.findViewById(R.id.ivCategory);
convertView.setTag(viewHolderParent);
} else {
viewHolderParent = (ViewHolderParent) convertView.getTag();
}
if (parentItems.get(groupPosition).get(ConstantManager.Parameter.IS_CHECKED).equalsIgnoreCase(ConstantManager.CHECK_BOX_CHECKED_TRUE)) {
viewHolderParent.cbMainCategory.setChecked(true);
notifyDataSetChanged();
} else {
viewHolderParent.cbMainCategory.setChecked(false);
notifyDataSetChanged();
}
viewHolderParent.cbMainCategory.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (viewHolderParent.cbMainCategory.isChecked()) {
parentItems.get(groupPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_TRUE);
for (int i = 0; i < childItems.get(groupPosition).size(); i++) {
childItems.get(groupPosition).get(i).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_TRUE);
}
notifyDataSetChanged();
}
else {
parentItems.get(groupPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_FALSE);
for (int i = 0; i < childItems.get(groupPosition).size(); i++) {
childItems.get(groupPosition).get(i).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_FALSE);
}
notifyDataSetChanged();
}
}
});
ConstantManager.childItems = childItems;
ConstantManager.parentItems = parentItems;
viewHolderParent.tvMainCategoryName.setText(parentItems.get(groupPosition).get(ConstantManager.Parameter.CATEGORY_NAME));
return convertView;
}
#Override
public View getChildView(final int groupPosition, final int childPosition, final boolean b, View convertView, ViewGroup viewGroup) {
final ViewHolderChild viewHolderChild;
child = childItems.get(groupPosition).get(childPosition);
if (convertView == null) {
convertView = inflater.inflate(R.layout.child_list_layout_choose_category, null);
viewHolderChild = new ViewHolderChild();
viewHolderChild.tvSubCategoryName = convertView.findViewById(R.id.tvSubCategoryName);
viewHolderChild.cbSubCategory = convertView.findViewById(R.id.cbSubCategory);
convertView.setTag(viewHolderChild);
} else {
viewHolderChild = (ViewHolderChild) convertView.getTag();
}
if (childItems.get(groupPosition).get(childPosition).get(ConstantManager.Parameter.IS_CHECKED).equalsIgnoreCase(ConstantManager.CHECK_BOX_CHECKED_TRUE)) {
viewHolderChild.cbSubCategory.setChecked(true);
notifyDataSetChanged();
} else {
viewHolderChild.cbSubCategory.setChecked(false);
notifyDataSetChanged();
}
viewHolderChild.tvSubCategoryName.setText(child.get(ConstantManager.Parameter.SUB_CATEGORY_NAME));
viewHolderChild.cbSubCategory.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (viewHolderChild.cbSubCategory.isChecked()) {
count = 0;
childItems.get(groupPosition).get(childPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_TRUE);
notifyDataSetChanged();
} else {
count = 0;
childItems.get(groupPosition).get(childPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_FALSE);
notifyDataSetChanged();
}
for (int i = 0; i < childItems.get(groupPosition).size(); i++) {
if (childItems.get(groupPosition).get(i).get(ConstantManager.Parameter.IS_CHECKED).equalsIgnoreCase(ConstantManager.CHECK_BOX_CHECKED_TRUE)) {
count++;
}
}
if (count == childItems.get(groupPosition).size()) {
parentItems.get(groupPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_TRUE);
notifyDataSetChanged();
} else {
parentItems.get(groupPosition).put(ConstantManager.Parameter.IS_CHECKED, ConstantManager.CHECK_BOX_CHECKED_FALSE);
notifyDataSetChanged();
}
ConstantManager.childItems = childItems;
ConstantManager.parentItems = parentItems;
}
});
return convertView;
}
#Override
public boolean isChildSelectable(int i, int i1) {
return false;
}
#Override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
#Override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
private class ViewHolderParent {
TextView tvMainCategoryName;
CheckBox cbMainCategory;
ImageView ivCategory;
}
private class ViewHolderChild {
TextView tvSubCategoryName;
CheckBox cbSubCategory;
}
}
I think that you have custom classes similar to these:
DataItem:
public class DataItem {
private String categoryName;
private ArrayList<SubCategoryItem> subCategory;
private boolean isChecked;
public String getCategoryName() {
return categoryName;
}
public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
}
public ArrayList<SubCategoryItem> getSubCategory() {
return subCategory;
}
public void setSubCategory(ArrayList<SubCategoryItem> subCategory) {
this.subCategory = subCategory;
}
public boolean isChecked() {
return isChecked;
}
public void setChecked(boolean checked) {
isChecked = checked;
}
public DataItem(){
categoryName = "Default Category";
subCategory = new ArrayList<>();
isChecked = false;
}
}
SubCategoryItem:
public class SubCategoryItem {
private String subCategoryName;
private boolean isChecked;
public String getSubCategoryName() {
return subCategoryName;
}
public void setSubCategoryName(String subCategoryName) {
this.subCategoryName = subCategoryName;
}
public boolean isChecked() {
return isChecked;
}
public void setChecked(boolean checked) {
isChecked = checked;
}
public SubCategoryItem(){
subCategoryName = "Default Sub Category";
isChecked = false;
}
}
Then you can use those directly for the adapter, like below:
public class MyCategoriesExpandableListAdapter extends BaseExpandableListAdapter {
public ArrayList<DataItem> dataList;
private LayoutInflater inflater;
private Activity activity;
private int count;
private boolean isFromMyCategoriesFragment;
public MyCategoriesExpandableListAdapter(Activity activity, ArrayList<DataItem> dataList, boolean isFromMyCategoriesFragment) {
this.activity = activity;
this.dataList = dataList;
this.isFromMyCategoriesFragment = isFromMyCategoriesFragment;
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getGroupCount() {
return dataList.size();
}
#Override
public int getChildrenCount(int groupPosition) {
return dataList.get(groupPosition).getSubCategory().size();
}
#Override
public DataItem getGroup(int i) {
return dataList.get(i);
}
#Override
public SubCategoryItem getChild(int i, int i1) {
return dataList.get(i).getSubCategory().get(i1);
}
#Override
public long getGroupId(int i) {
return 0;
}
#Override
public long getChildId(int i, int i1) {
return 0;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public View getGroupView(final int groupPosition, final boolean b, View convertView, ViewGroup viewGroup) {
final ViewHolderParent viewHolderParent;
if (convertView == null) {
if(isFromMyCategoriesFragment) {
convertView = inflater.inflate(R.layout.group_list_layout_my_categories, null);
}else {
convertView = inflater.inflate(R.layout.group_list_layout_choose_categories, null);
}
viewHolderParent = new ViewHolderParent();
viewHolderParent.tvMainCategoryName = convertView.findViewById(R.id.tvMainCategoryName);
viewHolderParent.cbMainCategory = convertView.findViewById(R.id.cbMainCategory);
viewHolderParent.ivCategory = convertView.findViewById(R.id.ivCategory);
convertView.setTag(viewHolderParent);
} else {
viewHolderParent = (ViewHolderParent) convertView.getTag();
}
viewHolderParent.cbMainCategory.setChecked(dataList.get(groupPosition).isChecked());
viewHolderParent.cbMainCategory.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dataList.get(groupPosition).setChecked(viewHolderParent.cbMainCategory.isChecked());
for (int i = 0; i < dataList.get(groupPosition).getSubCategory().size(); i++) {
dataList.get(groupPosition).getSubCategory().get(i).setChecked(viewHolderParent.cbMainCategory.isChecked());
}
notifyDataSetChanged();
}
});
//ConstantManager.childItems = childItems;
//ConstantManager.parentItems = parentItems;
viewHolderParent.tvMainCategoryName.setText(dataList.get(groupPosition).getCategoryName());
return convertView;
}
#Override
public View getChildView(final int groupPosition, final int childPosition, final boolean b, View convertView, ViewGroup viewGroup) {
final ViewHolderChild viewHolderChild;
SubCategoryItem child = getChild(groupPosition, childPosition);
if (convertView == null) {
convertView = inflater.inflate(R.layout.child_list_layout_choose_category, null);
viewHolderChild = new ViewHolderChild();
viewHolderChild.tvSubCategoryName = convertView.findViewById(R.id.tvSubCategoryName);
viewHolderChild.cbSubCategory = convertView.findViewById(R.id.cbSubCategory);
convertView.setTag(viewHolderChild);
} else {
viewHolderChild = (ViewHolderChild) convertView.getTag();
}
viewHolderChild.cbSubCategory.setChecked(child.isChecked());
viewHolderChild.tvSubCategoryName.setText(child.getSubCategoryName());
viewHolderChild.cbSubCategory.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
getChild(groupPosition, childPosition).setChecked(viewHolderChild.cbSubCategory.isChecked());
count = 0;
for (int i = 0; i < getGroup(groupPosition).getSubCategory().size(); i++) {
if (getChild(groupPosition, i).isChecked()) {
count++;
}
}
getGroup(groupPosition).setChecked(count == getGroup(groupPosition).getSubCategory().size());
notifyDataSetChanged();
//ConstantManager.childItems = childItems;
//ConstantManager.parentItems = parentItems;
}
});
return convertView;
}
#Override
public boolean isChildSelectable(int i, int i1) {
return false;
}
#Override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
#Override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
private class ViewHolderParent {
TextView tvMainCategoryName;
CheckBox cbMainCategory;
ImageView ivCategory;
}
private class ViewHolderChild {
TextView tvSubCategoryName;
CheckBox cbSubCategory;
}
public ArrayList<SubCategoryItem> getCheckedList() {
ArrayList<SubCategoryItem> checkedItemList = new ArrayList<>();
for (DataItem dataItem : dataList) {
for (SubCategoryItem subCategoryItem : dataItem.getSubCategory()) {
if(subCategoryItem.isChecked()) checkedItemList.add(subCategoryItem);
}
}
return checkedItemList;
}
}
Create the data list like this:
String[] sampleGroups = {"Art", "Maths", "Language"};
ArrayList<DataItem> arCategory = new ArrayList<>();
for(int i = 0; i < sampleGroups.length; i++){
DataItem dataItem = new DataItem();
dataItem.setCategoryName(sampleGroups[i]);
ArrayList<SubCategoryItem> arSubCategory = new ArrayList<>();
for(int j = 1; j < 6; j++) {
SubCategoryItem subCategoryItem = new SubCategoryItem();
subCategoryItem.setSubCategoryName(dataItem.getCategoryName() + ": " + j);
arSubCategory.add(subCategoryItem);
}
dataItem.setSubCategory(arSubCategory);
arCategory.add(dataItem);
}
Hope that helps!
I have 500+ items to put in a checklist divided into categories.
My solution so far for this is to use multiple expandableListView lists and the items inside them of course.
The problem shows up when I check some of the check boxes, the get messed up and check boxes from another lists get checked and I dont know why.. Can someone throw some light here?
ExpandableListView.java
public class IngredientsExpandableList extends ExpandableListActivity {
// Create ArrayList to hold parent Items and Child Items
private ArrayList<ParentModel> parentItems = new ArrayList<ParentModel>();
private ArrayList<ChildModel> childItems = new ArrayList<ChildModel>();
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Create Expandable List and set it's properties
ExpandableListView expandableList = getExpandableListView();
expandableList.setDividerHeight(0);
expandableList.setGroupIndicator(null);
expandableList.setClickable(true);
//Setting the data.
setData();
// Create the Adapter
MyExpandableAdapter adapter = new MyExpandableAdapter(parentItems, childItems);
adapter.setInflater(LayoutInflater.from(this), this);
// Set the Adapter to expandableList
expandableList.setAdapter(adapter);
expandableList.setOnChildClickListener(this);
}
public void setData(){
String[] colors = getResources().getStringArray(R.array.ingredientsColor);
String[] innerColors = getResources().getStringArray(R.array.ingredientsInnerColor);
// Set the Items of Parent
for (int i = 0; i < 10; i++){
parentItems.add(new ParentModel("ingredients "+(i+1), Color.parseColor(colors[i])));
}
// Set The Child Data
ArrayList<String> child = null;
for (int i = 0; i < parentItems.size(); i++){
child = new ArrayList<String>();
for (int k = 0; k < 4; k++){
child.add("ingredient " + (k+1));
}
childItems.add(new ChildModel(child,Color.parseColor(innerColors[i])));
}
}
public void makeToast(String string){
Toast.makeText(this, string,
Toast.LENGTH_SHORT).show();
}
public class ParentModel{
String text;
int color;
public ParentModel(String text, int color) {
this.text = text;
this.color = color;
}
public String getText() {
return text;
}
public int getColor() {
return color;
}
}
public class ChildModel{
ArrayList<String> text;
int color;
public ChildModel(ArrayList<String> text, int color) {
this.text = text;
this.color = color;
}
public ArrayList<String> getText() {
return text;
}
public int getColor() {
return color;
}
}
public class MyExpandableAdapter extends BaseExpandableListAdapter
{
private Activity activity;
private ArrayList<ChildModel> childItems;
private LayoutInflater inflater;
private ArrayList<ParentModel> parentItems;
private ArrayList<String> child;
// constructor
public MyExpandableAdapter(ArrayList<ParentModel> parents, ArrayList<ChildModel> childern)
{
this.parentItems = parents;
this.childItems = childern;
}
public void setInflater(LayoutInflater inflater, Activity activity)
{
this.inflater = inflater;
this.activity = activity;
}
// method getChildView is called automatically for each child view.
// Implement this method as per your requirement
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent)
{
child = childItems.get(groupPosition).getText();
TextView textView = null;
CheckBox checkBox = null;
LinearLayout LinearView = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.child_list, null);
}
// get the textView reference and set the value
textView = (TextView) convertView.findViewById(R.id.textView1);
textView.setText(child.get(childPosition));
LinearView = (LinearLayout) convertView.findViewById(R.id.layout);
LinearView.setBackgroundColor(childItems.get(groupPosition).getColor());
checkBox = (CheckBox) convertView.findViewById(R.id.checkBox1);
// set the ClickListener to handle the click event on child item
convertView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
makeToast("clicked");
}
});
return convertView;
}
// method getGroupView is called automatically for each parent item
// Implement this method as per your requirement
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
{
if (convertView == null) {
convertView = inflater.inflate(R.layout.parent_list, null);
}
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setText(parentItems.get(groupPosition).getText());
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setBackgroundColor(parentItems.get(groupPosition).getColor());
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setChecked(isExpanded);
return convertView;
}
#Override
public Object getChild(int groupPosition, int childPosition)
{
return null;
}
#Override
public long getChildId(int groupPosition, int childPosition)
{
return 0;
}
#Override
public int getChildrenCount(int groupPosition)
{
return childItems.get(groupPosition).getText().size();
}
#Override
public Object getGroup(int groupPosition)
{
return null;
}
#Override
public int getGroupCount()
{
return parentItems.size();
}
#Override
public void onGroupCollapsed(int groupPosition)
{
super.onGroupCollapsed(groupPosition);
}
#Override
public void onGroupExpanded(int groupPosition)
{
super.onGroupExpanded(groupPosition);
}
#Override
public long getGroupId(int groupPosition)
{
return 0;
}
#Override
public boolean hasStableIds()
{
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition)
{
return false;
}
}
}
This is because views are recycled in lists so you must store the state of the checks and make sure you set them inside the get child view. something like this
public class IngredientsExpandableList extends ExpandableListActivity {
// Create ArrayList to hold parent Items and Child Items
private ArrayList<ParentModel> parentItems = new ArrayList<ParentModel>();
private ArrayList<ChildModel> childItems = new ArrayList<ChildModel>();
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Create Expandable List and set it's properties
ExpandableListView expandableList = getExpandableListView();
expandableList.setDividerHeight(0);
expandableList.setGroupIndicator(null);
expandableList.setClickable(true);
//Setting the data.
setData();
// Create the Adapter
MyExpandableAdapter adapter = new MyExpandableAdapter(parentItems, childItems);
adapter.setInflater(LayoutInflater.from(this), this);
// Set the Adapter to expandableList
expandableList.setAdapter(adapter);
expandableList.setOnChildClickListener(this);
}
public void setData(){
String[] colors = getResources().getStringArray(R.array.ingredientsColor);
String[] innerColors = getResources().getStringArray(R.array.ingredientsInnerColor);
// Set the Items of Parent
for (int i = 0; i < 10; i++){
parentItems.add(new ParentModel("ingredients "+(i+1), Color.parseColor(colors[i])));
}
// Set The Child Data
ArrayList<String> child = null;
for (int i = 0; i < parentItems.size(); i++){
child = new ArrayList<String>();
for (int k = 0; k < 4; k++){
child.add("ingredient " + (k+1));
}
childItems.add(new ChildModel(child,Color.parseColor(innerColors[i])));
}
}
public void makeToast(String string){
Toast.makeText(this, string,
Toast.LENGTH_SHORT).show();
}
public class ParentModel{
String text;
int color;
public ParentModel(String text, int color) {
this.text = text;
this.color = color;
}
public String getText() {
return text;
}
public int getColor() {
return color;
}
}
public class ChildModel{
ArrayList<String> text;
int color;
ArrayList<Boolean> checked = new ArrayList();;
public ChildModel(ArrayList<String> text, int color) {
this.text = text;
this.color = color;
for(String i:text)
{
checked.add(false);
}
}
public ArrayList<String> getText() {
return text;
}
public int getColor() {
return color;
}
}
public class MyExpandableAdapter extends BaseExpandableListAdapter
{
private Activity activity;
private ArrayList<ChildModel> childItems;
private LayoutInflater inflater;
private ArrayList<ParentModel> parentItems;
private ArrayList<String> child;
// constructor
public MyExpandableAdapter(ArrayList<ParentModel> parents, ArrayList<ChildModel> childern)
{
this.parentItems = parents;
this.childItems = childern;
}
public void setInflater(LayoutInflater inflater, Activity activity)
{
this.inflater = inflater;
this.activity = activity;
}
// method getChildView is called automatically for each child view.
// Implement this method as per your requirement
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent)
{
child = childItems.get(groupPosition).getText();
TextView textView = null;
CheckBox checkBox = null;
LinearLayout LinearView = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.child_list, null);
}
// get the textView reference and set the value
textView = (TextView) convertView.findViewById(R.id.textView1);
textView.setText(child.get(childPosition));
LinearView = (LinearLayout) convertView.findViewById(R.id.layout);
LinearView.setBackgroundColor(childItems.get(groupPosition).getColor());
checkBox = (CheckBox) convertView.findViewById(R.id.checkBox1);
checkBox.setChecked(childItems.get(groupPosition).checked.get(childPosition));
checkbox.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
childItems.get(groupPosition).checked.get(childPosition) = isChecked;
}
});
// set the ClickListener to handle the click event on child item
convertView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
makeToast("clicked");
}
});
return convertView;
}
// method getGroupView is called automatically for each parent item
// Implement this method as per your requirement
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
{
if (convertView == null) {
convertView = inflater.inflate(R.layout.parent_list, null);
}
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setText(parentItems.get(groupPosition).getText());
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setBackgroundColor(parentItems.get(groupPosition).getColor());
((CheckedTextView) convertView.findViewById(R.id.textViewGroup)).setChecked(isExpanded);
return convertView;
}
#Override
public Object getChild(int groupPosition, int childPosition)
{
return null;
}
#Override
public long getChildId(int groupPosition, int childPosition)
{
return 0;
}
#Override
public int getChildrenCount(int groupPosition)
{
return childItems.get(groupPosition).getText().size();
}
#Override
public Object getGroup(int groupPosition)
{
return null;
}
#Override
public int getGroupCount()
{
return parentItems.size();
}
#Override
public void onGroupCollapsed(int groupPosition)
{
super.onGroupCollapsed(groupPosition);
}
#Override
public void onGroupExpanded(int groupPosition)
{
super.onGroupExpanded(groupPosition);
}
#Override
public long getGroupId(int groupPosition)
{
return 0;
}
#Override
public boolean hasStableIds()
{
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition)
{
return false;
}
}
public class MainActivity extends AppCompatActivity {
private CollapsingToolbarLayout collapsingToolbarLayout = null;
HashMap<String, List<ExpandableListItem>> _child;
String response;
String serviceName, serviceIcon, serviceId;
ExpandableListView expandableListView;
CustomExpandableListAdapter expandableListAdapter;
String groupName;
String childName;
List<ExpandableListItem> listtG1;
JSONArray jsonArray;
List<ExpandableListItem> _header;
ExpandableListItem rowData;
List<String> _groupNameList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
collapsingToolbarLayout.setTitle(getResources().getString(R.string.user_name));
new CategoryServices().execute("");
expandableListView = (ExpandableListView) findViewById(R.id.expandableListView);
expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
#Override
public void onGroupExpand(int groupPosition) {
groupName = _groupNameList.get(groupPosition);
listtG1 = _child.get(groupName);
Log.d("ListSize", String.valueOf(listtG1.size()));
Toast.makeText(MainActivity.this,groupName+""+childName,Toast.LENGTH_LONG).show();
}
});
expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
#Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(MainActivity.this,groupName+""+childName,Toast.LENGTH_LONG).show();
}
});
expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
groupName = _groupNameList.get(groupPosition);
listtG1 = _child.get(groupName);
Toast.makeText(MainActivity.this, groupName,Toast.LENGTH_LONG).show();
Log.d("ListSize", String.valueOf(listtG1.size()));
if (listtG1.size() == 1 && listtG1.get(0).getServiceName().equals(groupName)) {
expandableListView.setGroupIndicator(null);
return true;
}
return false;
}
});
expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
childName = listtG1.get(childPosition).getServiceName();
Toast.makeText(
getApplicationContext(),
childName, Toast.LENGTH_SHORT
).show();
return false;
}
});
dynamicToolbarColor();
toolbarTextAppernce();
}
private void dynamicToolbarColor() {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.profile_pic);
Palette.from(bitmap).generate(new Palette.PaletteAsyncListener() {
#Override
public void onGenerated(Palette palette) {
collapsingToolbarLayout.setContentScrimColor(palette.getMutedColor(R.attr.colorPrimary));
collapsingToolbarLayout.setStatusBarScrimColor(palette.getMutedColor(R.attr.colorPrimaryDark));
}
});
}
private void toolbarTextAppernce() {
collapsingToolbarLayout.setCollapsedTitleTextAppearance(R.style.collapsedappbar);
collapsingToolbarLayout.setExpandedTitleTextAppearance(R.style.expandedappbar);
}
class CategoryServices extends AsyncTask<String, Void, String> {
#Override
protected void onPreExecute() {
}
#Override
protected String doInBackground(String... params) {
response = JSONFunctions.getJSONfromURL("http://cpanel.smartindiaservice.com/api/categoryservices?categoryid=13");
return response;
}
#Override
protected void onPostExecute(String result) {
try {
setListAdapter(result, expandableListView);
// return false;
} catch (NullPointerException e) {
}
super.onPostExecute(result);
}
}
private void setListAdapter(String response, ExpandableListView expandableListView) {
_child = new HashMap<>();
_groupNameList = new ArrayList<>();
if (!response.isEmpty()) {
try {
jsonArray = new JSONArray(response);
if (jsonArray != null && jsonArray.length() > 0) {
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject productObj = jsonArray.getJSONObject(i);
String groupName = productObj.getString("Service");
JSONArray servicesArray = productObj.getJSONArray("SubServices");
if (servicesArray != null && servicesArray.length() > 0) {
_header = new ArrayList<>();
for (int j = 0; j < servicesArray.length(); j++) {
JSONObject serviceObj = servicesArray.getJSONObject(j);
rowData = new ExpandableListItem();
serviceName = serviceObj.getString("SubServiceName");
serviceIcon = serviceObj.getString("SubServiceDescription");
serviceId = serviceObj.getString("SubServiceID");
rowData.setGroupName(groupName);
rowData.setServiceIcon(serviceIcon);
rowData.setServiceId(serviceId);
rowData.setServiceName(serviceName);
_header.add(rowData);
}
}
_child.put(groupName, _header);
_groupNameList.add(groupName);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
expandableListAdapter = new CustomExpandableListAdapter(this, _groupNameList, _child);
expandableListView.setAdapter(expandableListAdapter);
}
}
}
public class CustomExpandableListAdapter extends BaseExpandableListAdapter {
private Context context;
private List<String> expandableListTitle;
private HashMap<String, List<ExpandableListItem>> expandableListDetail;
public CustomExpandableListAdapter(Context context, List<String> expandableListTitle,
HashMap<String, List<ExpandableListItem>> expandableListDetail) {
this.context = context;
this.expandableListTitle = expandableListTitle;
this.expandableListDetail = expandableListDetail;
}
#Override
public Object getChild(int listPosition, int expandedListPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.get(expandedListPosition);
}
#Override
public long getChildId(int listPosition, int expandedListPosition) {
return expandedListPosition;
}
#Override
public View getChildView(int listPosition, final int expandedListPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
// final String expandedListText = getChild(listPosition, expandedListPosition).g;
ExpandableListItem rowData = (ExpandableListItem) getChild(listPosition, expandedListPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.list_item, null);
}
TextView expandedListTextView = (TextView) convertView
.findViewById(R.id.expandedListItem);
expandedListTextView.setText(rowData.getServiceName());
return convertView;
}
#Override
public int getChildrenCount(int listPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.size();
}
#Override
public Object getGroup(int listPosition) {
return this.expandableListTitle.get(listPosition);
}
#Override
public int getGroupCount() {
return this.expandableListTitle.size();
}
#Override
public long getGroupId(int listPosition) {
return listPosition;
}
#Override
public View getGroupView(int listPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String listTitle = (String) getGroup(listPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.list_group, null);
}
TextView listTitleTextView = (TextView) convertView
.findViewById(R.id.listTitle);
listTitleTextView.setTypeface(null, Typeface.BOLD);
listTitleTextView.setText(listTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int listPosition, int expandedListPosition) {
return true;
}
}
this is my activity and adapter i am able to display data in expandable list-view i want show indicator when group contain more than one child and i want hide group indicator when group contain only one child and group name and child name is same i am trying to in activity expandableListView.setGroupIndicator(null); using this code on setOnGroupClickListener this click but what happed firs time it display all indicator and when i click on group whose child is one and name same then it hide all indicator please suggest me how to fix this issue
[Adapter class]
public class CustomExpandableListAdapter extends BaseExpandableListAdapter {
private Context context;
private List<String> expandableListTitle;
private HashMap<String, List<FilterList>> expandableListDetail;
private boolean checked;
private int lastClickedPosition;
private List<Boolean> setValueForSeletedFilter;
private String[] keysOfHashmap;
public CustomExpandableListAdapter(Context context, List<String> expandableListTitle,
HashMap<String, List<FilterList>> expandableListDetail, List<Boolean> setValueForSeletedFilter) {
this.context = context;
this.expandableListTitle = expandableListTitle;
this.expandableListDetail = expandableListDetail;
this.setValueForSeletedFilter = setValueForSeletedFilter;
}
#Override
public Object getChild(int listPosition, int expandedListPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.get(expandedListPosition).getSearchFilterValue();
}
#Override
public long getChildId(int listPosition, int expandedListPosition) {
return expandedListPosition;
}
#Override
public View getChildView(final int listPosition, final int expandedListPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String expandedListText = (String) getChild(listPosition, expandedListPosition);
if (convertView == null) {
int i = listPosition;
int j = expandedListPosition;
LayoutInflater layoutInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.list_item, null);
TextView expandedListTextView = (TextView) convertView
.findViewById(R.id.expandedListItem);
expandedListTextView.setText(expandedListText);
String s = expandableListTitle.get(listPosition);
final ImageView imageView = (ImageView) convertView.findViewById(R.id.iv_select);
if (setValueForSeletedFilter.get(expandedListPosition) == true) {
imageView.setVisibility(View.VISIBLE);
} else {
imageView.setVisibility(View.GONE);
}
}
return convertView;
}
private void toggleSelection(int i, View v) {
int j = i;
ImageView imageView = (ImageView) v.findViewById(R.id.iv_select);
imageView.setImageResource(R.drawable.ic_review);
}
#Override
public int getChildrenCount(int listPosition) {
return this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
.size();
}
#Override
public Object getGroup(int listPosition) {
return this.expandableListTitle.get(listPosition);
}
#Override
public int getGroupCount() {
return this.expandableListTitle.size();
}
#Override
public long getGroupId(int listPosition) {
return listPosition;
}
#Override
public View getGroupView(int listPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String listTitle = (String) getGroup(listPosition);
if (convertView == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = layoutInflater.inflate(R.layout.list_group, null);
}
TextView listTitleTextView = (TextView) convertView
.findViewById(R.id.listTitle);
listTitleTextView.setTypeface(null, Typeface.BOLD);
listTitleTextView.setText(listTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return true;
}
public void setData(){
notifyDataSetChanged();
}
#Override
public boolean isChildSelectable(int listPosition, int expandedListPosition) {
return true;
}
}
[setting values for adapter class and notifying adapter on changing values]
final HashMap> setValueForSeletedFilter = new HashMap<>();
String header = null;
final List booleanList = new ArrayList<>();
final HashMap> stringListHashMap = new HashMap<>();
final List expandableListTitle;
for (int i = 0; i < filtersInfos.size(); i++) {
stringListHashMap.put(filtersInfos.get(i).getFilterHeaderName(), filtersInfos.get(i).getFilterLists());
if (filtersInfos.get(i).getFilterHeaderName().equalsIgnoreCase("Distance")) {
header = filtersInfos.get(i).getFilterHeaderName();
for (int j = 0; j < filtersInfos.get(i).getFilterLists().size(); j++)
booleanList.add(false);
}
}
setValueForSeletedFilter.put(header, booleanList);
expandableListTitle = new ArrayList<String>(stringListHashMap.keySet());
final CustomExpandableListAdapter adapter = new CustomExpandableListAdapter(this, expandableListTitle, stringListHashMap, booleanList);
expandableListView.setAdapter(adapter);
filterDialog.show();
expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
#Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(getApplicationContext(),
expandableListTitle.get(groupPosition) + " List Expanded.",
Toast.LENGTH_SHORT).show();
}
});
expandableListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {
#Override
public void onGroupCollapse(int groupPosition) {
Toast.makeText(getApplicationContext(),
expandableListTitle.get(groupPosition) + " List Collapsed.",
Toast.LENGTH_SHORT).show();
}
});
final boolean[] checked = {false};
final int[] lastClickedPosition = {0};
expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
if (expandableListTitle.get(groupPosition).equalsIgnoreCase("Distance")) {
booleanList.add(childPosition, true);
setValueForSeletedFilter.put(expandableListTitle.get(groupPosition), booleanList);
expandableListView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
return false;
}
});
close.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
filterDialog.dismiss();
}
});
done.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
on the basis of header make list single or multi selection android.
getChildView() example for my case "Single selection"
#Override
public View getChildView(final int i, final int i1, boolean b, View view, ViewGroup viewGroup) {
View v = LayoutInflater.from(context).inflate(R.layout.expandablelv_child, null);
final CheckBox checkBox = v.findViewById(R.id.expandable_lv_child_cb);
RelativeLayout quantityContainer = v.findViewById(R.id.expandable_lv_child_quantity_cont);
final TextView textView = v.findViewById(R.id.expandable_lv_child_quantity_tv);
checkBox.setText(children.get(i).get(i1).getItemName());
double d=Double.parseDouble(children.get(i).get(i1).getMinQty());
int k=(int)d;
textView.setText(String.valueOf(k));
quantityContainer.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
QuantityDialog dialog = new QuantityDialog(context, children.get(i).get(i1).getMinQty(),
children.get(i).get(i1).getMaxQty(), new DialogSelectable() {
#Override
public void onQuantitySelected(String quantity) {
if (group[i].parent == 1 && group[i].child == i1)
textView.setText(quantity);
ExpandableLvAdapter.quantity[i] = quantity;
}
});
dialog.show();
}
});
try {
// if (model.children.get(i).size() < children.get(i).size()) {
try {
model.children.get(i).add(checkBox);
} catch (Exception e) {
ArrayList<CheckBox> temp = new ArrayList<>();
temp.add(checkBox);
model.children.add(temp);
}
//}
} catch (Exception e) {
try {
model.children.get(i).add(checkBox);
} catch (Exception ex) {
ArrayList<CheckBox> temp = new ArrayList<>();
temp.add(checkBox);
model.children.add(temp);
}
}
if (group[i].parent == 1) {
model.children.get(i).get(group[i].child).setEnabled(true);
model.children.get(i).get(group[i].child).setChecked(true);
model.disable(i, children.get(i).get(group[i].child).getItemName());
} else {
model.enable(i);
}
checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if (b) {
group[i].parent = 1;
group[i].child = i1;
model.disable(i, children.get(i).get(i1).getItemName());
selected.add(children.get(i).get(i1));
quantity[i] = children.get(i).get(i1).getMaxQty();
} else {
group[i].parent = 0;
model.enable(i);
}
}
});
return v;
}
I've created a Spinner programmatically and add it to ListView's adapter. However, I can't get the Spinner back from ListView.
//listView = (NestedListView)findViewById(R.id.exListView);
create.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Spinner spinner;
for (int i=0; i<listView.getChildCount(); i++) {
if (listView.getChildAt(i) instanceof Spinner){
spinner = (Spinner) listView.getChildAt(i);
String selection = (String) spinner.getSelectedItem();
Log.e("spinner device", selection);
}
}
}
});
My adapter
public class ExpListAdapter extends BaseExpandableListAdapter {
private ArrayList<ArrayList<String>> mGroups;
private ArrayList<DeviceObject> deviceObList;
private ArrayList<RoomSuggestion> roObjList;
private Context mContext;
public ExpListAdapter (Context context,ArrayList<ArrayList<String>> groups, ArrayList<DeviceObject> deviceObList, ArrayList<RoomSuggestion> roObjList){
mContext = context;
mGroups = groups;
this.deviceObList = deviceObList;
this.roObjList = roObjList;
}
#Override
public int getGroupCount() {
return mGroups.size();
}
#Override
public int getChildrenCount(int groupPosition) {
return mGroups.get(groupPosition).size();
}
#Override
public Object getGroup(int groupPosition) {
return mGroups.get(groupPosition);
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return mGroups.get(groupPosition).get(childPosition);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.group_view, null);
}
if (isExpanded) {
//Изменяем что-нибудь, если текущая Group раскрыта
} else {
//Изменяем что-нибудь, если текущая Group скрыта
}
Typeface lightFace = Typeface.createFromAsset(mContext.getAssets(), "font/GothamProLight.ttf");
TextView textGroup = (TextView) convertView.findViewById(R.id.textGroup);
textGroup.setTypeface(lightFace);
textGroup.setText("Thereses gate 46");
return convertView;
}
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild,
View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.child_view, null);
}
Typeface mediumFace = Typeface.createFromAsset(mContext.getAssets(), "font/GothamProMedium.ttf");
TextView textChild = (TextView) convertView.findViewById(R.id.textChild);
textChild.setTypeface(mediumFace);
textChild.setText( mGroups.get(groupPosition).get(childPosition) );
RelativeLayout rl = (RelativeLayout) convertView.findViewById(R.id.bg_button_screen);
if( !deviceObList.get(childPosition).getProduct_id().equals("0") ) {
rl.setBackgroundColor(Color.parseColor("#4fcc54"));
} else {
rl.setBackgroundColor(Color.parseColor("#e5910d"));
}
View linearLayoutG = convertView.findViewById(R.id.container);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.setMargins(10, 0, 10, 30);
linearLayoutG.setLayoutParams(layoutParams);
RelativeLayout spinnerOpen = (RelativeLayout) convertView.findViewById(R.id.spinnerOpen);
View linearLayout = convertView.findViewById(R.id.spinnerL);
ImageView imageS = (ImageView)convertView.findViewById(R.id.spinnerImage);
imageS.getLayoutParams().width = 20;
imageS.getLayoutParams().height = 20;
imageS.setImageResource(R.drawable.spin_ok);
ArrayList<String> list = new ArrayList<String>();
for (int i=0; i<roObjList.size(); i++) {
list.add(roObjList.get(i).getName() );
}
final Spinner spinner = new Spinner(mContext);
// Make sure you have valid layout parameters.
spinner.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 100));
spinner.setBackgroundResource(R.drawable.bg_spinner);
ArrayAdapter spinnerArrayAdapter = new ArrayAdapter(mContext,
R.layout.spinner_item, list);
spinner.setAdapter(spinnerArrayAdapter);
// open spinner
spinnerOpen.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
spinner.performClick();
}
});
((LinearLayout) linearLayout).addView(spinner);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Log.e("selected", String.valueOf(parent.getItemAtPosition(position)) );
Log.e("childPosition", String.valueOf(childPosition));
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
return convertView;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
You can try the following code:
//listView = (NestedListView)findViewById(R.id.exListView);
create.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
for(int i = 0; i < listView.getAdapter().getCount(); i++ ) {
for(int i = 0; i < listView.getChildCount(); i++ ) {
View _mainView = listView.getChildAt(i);
LinearLayout _linearLayout = _mainView.findViewById(R.id.spinnerL);
Spinner spinner = (Spinner) _linearLayout.getChildAt(0);
String selection = (String) spinner.getSelectedItem();
Log.e("spinner device", selection);
}
}
}
});