Develop Reference

How to disable previous items in a ListView

I am trying to develop an activity where there is a custom listView made out of CustomAdapter.
The list consists of a TextView and an EditText. The EditText when clicked, it auto fetches the system time.
What I want is when a particular EditText is filled, I want all the previous(above) list items in the sequence to be disabled.
So far, I have tried using isEnabled() and areAllItemsEnabled() functions returning respective boolean values using position, but however didn’t work.
Please help me achieve the above.
Thanks.
This is my CustomAdapter Class
public class SelectStnListByRoute extends BaseAdapter implements View.OnClickListener {
Context context;
ArrayList<StnNames> stnList;
LayoutInflater layoutInflater = null;
ViewHolder viewHolder;
private int mLastClicked;
public SelectStnListByRoute(Context context, ArrayList<StnNames> stnList) {
super();
this.context = context;
this.stnList = stnList;
layoutInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
return stnList.size();
}
#Override
public Object getItem(int position) {
return stnList.get(position);
}
#Override
public long getItemId(int position) {
return stnList.indexOf(getItem(position));
}
public int getViewTypeCount() {
return 1;
}
#Override
public boolean areAllItemsEnabled() {
return false;
}
#Override
public boolean isEnabled(int position) {
if(position==position){
return false;
}
return false;
}
#Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
int type = getItemViewType(position);
StnNames stnDetails = stnList.get(position);
viewHolder = new ViewHolder();
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.footplate_custome_layout, null);
viewHolder.txtStnNAme = (TextView) convertView.findViewById(R.id.txtStnCode);
viewHolder.txtStnArr = (TextView) convertView.findViewById(R.id.txtArrivalTime);
viewHolder.txtStnDep = (TextView) convertView.findViewById(R.id.txtDepTime);
convertView.setTag(viewHolder);
viewHolder.txtStnArr.setTag(stnDetails);
viewHolder.txtStnDep.setTag(stnDetails);
} else {
viewHolder = (ViewHolder) convertView.getTag();
viewHolder.txtStnArr.setTag(stnDetails);
viewHolder.txtStnDep.setTag(stnDetails);
}
viewHolder.txtStnNAme.setText(stnDetails.getStnCode());
viewHolder.txtStnArr.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.e("Position: " , String.valueOf(position)); //Here I am getting the position of the row item clicked, where should I put the Onclick false for disabling all of the above fields using the position?
}
});
viewHolder.txtStnDep.setOnClickListener(this);
viewHolder.txtStnArr = (TextView) convertView.findViewById(R.id.txtArrivalTime);
if (stnDetails.getArrivalTime() != null) {
viewHolder.txtStnArr.setText(stnDetails.getArrivalTime());
} else {
viewHolder.txtStnArr.setText("");
}
if (stnDetails.getDeptTime() != null) {
viewHolder.txtStnDep.setText(stnDetails.getDeptTime());
} else {
viewHolder.txtStnDep.setText("");
}
return convertView;
}
class ViewHolder {
TextView txtStnNAme, txtStnArr, txtStnDep;
int ref;
}
#Override
public void onClick(View view) {
int id = view.getId();
switch (id) {
case txtArrivalTime:
TextView textViewArrVal = (TextView) view.findViewById(R.id.txtArrivalTime);
textViewArrVal.setClickable(false);
StnNames listItemsArrr = (StnNames) textViewArrVal.getTag();
if (listItemsArrr.getArrivalTime() != getCurrentTime()) {
listItemsArrr.setArrivalTime(getCurrentTime());
if (listItemsArrr.getArrivalTime() != null) {
int position = textViewArrVal.getSelectionStart();
textViewArrVal.setText(listItemsArrr.getArrivalTime());
} else {
textViewArrVal.setText("");
}
}
break;
case txtDepTime:
TextView textViewDepVal = (TextView) view.findViewById(R.id.txtDepTime);
StnNames listItemsDepp = (StnNames) textViewDepVal.getTag();
if (listItemsDepp.getDeptTime() != getCurrentTime()) {
listItemsDepp.setDeptTime(getCurrentTime());
if (listItemsDepp.getDeptTime() != null) {
textViewDepVal.setText(listItemsDepp.getDeptTime());
} else {
textViewDepVal.setText("");
}
}
break;
default:
break;
}
}
public String getCurrentTime(){
Calendar calendar = Calendar.getInstance();
SimpleDateFormat mdformat = new SimpleDateFormat("HH:mm:ss");
String arrDate = mdformat.format(calendar.getTime());
return arrDate;
}
}

You can do this as below mentioned -:
You need to store the position of clicked button was. So initialize a variable in your class
int mButtonSelected = -1;
EDIT 1.
Then make a change to your isEnabled method
#Override
public boolean isEnabled(int position) {
if(position<mButtonSelected){
return false;
}
return true;
}
That will work it if any other button was clicked. but you have to do that in your onClick
mButtonSelected = position;
notifyDataSetChanged();
Let me it worked or not
EDIT
see below changes in your code-:
public class SelectStnListByRoute extends BaseAdapter {
Context context;
ArrayList<StnNames> stnList;
LayoutInflater layoutInflater = null;
ViewHolder viewHolder;
private int mLastClicked;
private SQLiteDB sqLiteDB;
int mArrivalSelected = -1;
int mDepartSelected = -1;
public SelectStnListByRoute(Context context, ArrayList<StnNames> stnList) {
super();
this.context = context;
this.stnList = stnList;
layoutInflater = LayoutInflater.from(context);
sqLiteDB = new SQLiteDB(context);
}
#Override
public int getCount() {
return stnList.size();
}
#Override
public Object getItem(int position) {
return stnList.get(position);
}
#Override
public long getItemId(int position) {
return stnList.indexOf(getItem(position));
}
public int getViewTypeCount() {
return 1;
}
#Override
public boolean areAllItemsEnabled() {
return false;
}
#Override
public boolean isEnabled(int position) {
if (position <= mArrivalSelected) {
return false;
}
return true;
}
public boolean isEnabledd(int position) {
if (position <= mDepartSelected) {
return false;
}
return true;
}
#Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
int type = getItemViewType(position);
StnNames stnDetails = stnList.get(position);
viewHolder = new ViewHolder();
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.footplate_custome_layout, null);
viewHolder.txtStnNAme = (TextView) convertView.findViewById(R.id.txtStnCode);
viewHolder.txtStnArr = (TextView) convertView.findViewById(R.id.txtArrivalTime);
viewHolder.txtStnDep = (TextView) convertView.findViewById(R.id.txtDepTime);
convertView.setTag(viewHolder);
viewHolder.txtStnArr.setTag(stnDetails);
viewHolder.txtStnDep.setTag(stnDetails);
} else {
viewHolder = (ViewHolder) convertView.getTag();
viewHolder.txtStnArr.setTag(stnDetails);
viewHolder.txtStnDep.setTag(stnDetails);
}
viewHolder.txtStnNAme.setText(stnDetails.getStnCode());
if (!isEnabled(position)) {
if (position <= mArrivalSelected) {
viewHolder.txtStnArr.setBackgroundColor(Color.parseColor("#ffa500"));
viewHolder.txtStnArr.setEnabled(false);
if (position < mArrivalSelected) {
viewHolder.txtStnDep.setEnabled(false);
viewHolder.txtStnDep.setBackgroundColor(Color.parseColor("#ffa500"));
}
}
} else {
viewHolder.txtStnArr.setEnabled(true);
viewHolder.txtStnDep.setEnabled(true);
viewHolder.txtStnArr.setBackgroundColor(Color.parseColor("#b4b4b4"));
viewHolder.txtStnDep.setBackgroundColor(Color.parseColor("#b4b4b4"));
}
viewHolder.txtStnArr.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.e("Position: ", String.valueOf(position));
mArrivalSelected = position;
arrivalClick(view);
notifyDataSetChanged();
}
});
if (!isEnabledd(position)) {
if (position <= mDepartSelected) {
viewHolder.txtStnArr.setBackgroundColor(Color.parseColor("#ffa500"));
viewHolder.txtStnDep.setBackgroundColor(Color.parseColor("#ffa500"));
viewHolder.txtStnArr.setEnabled(false);
viewHolder.txtStnDep.setEnabled(false);
} else {
viewHolder.txtStnArr.setEnabled(true);
viewHolder.txtStnDep.setEnabled(true);
viewHolder.txtStnArr.setBackgroundColor(Color.parseColor("#b4b4b4"));
viewHolder.txtStnDep.setBackgroundColor(Color.parseColor("#b4b4b4"));
}
}
viewHolder.txtStnDep.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.e("Position: ", String.valueOf(position));
mDepartSelected = position;
departureClick(view);
notifyDataSetChanged();
}
});
viewHolder.txtStnArr = (TextView) convertView.findViewById(R.id.txtArrivalTime);
if (stnDetails.getArrivalTime() != null) {
viewHolder.txtStnArr.setText(stnDetails.getArrivalTime());
} else {
viewHolder.txtStnArr.setText("");
}
if (stnDetails.getDeptTime() != null) {
viewHolder.txtStnDep.setText(stnDetails.getDeptTime());
} else {
viewHolder.txtStnDep.setText("");
}
return convertView;
}
class ViewHolder {
TextView txtStnNAme, txtStnArr, txtStnDep;
StnNames pos;
int ref;
}
public void arrivalClick(View view) {
TextView textViewArrVal = (TextView) view.findViewById(R.id.txtArrivalTime);
StnNames listItemsArrr = (StnNames) textViewArrVal.getTag();
if (listItemsArrr.getArrivalTime() != getCurrentTime()) {
listItemsArrr.setArrivalTime(getCurrentTime());
int stnId = listItemsArrr.getStnId();
String arrClick = "arrival";
String upSideKm = listItemsArrr.getStnUpsideKm();
String downsideKm = listItemsArrr.getStnDownSideKm();
String arrTime = getCurrentTime();
/* sqLiteDB.open();
*//* long abc = sqLiteDB.insertJourneySchedule(stnId,arrTime,"",userId,journeyId,latitute,longitute,journyDate,arrClick);*//*
*//* long abcd = sqLiteDB.updateJourneySchedule(stnId,arrTime,"",userId,journeyId,latitute,longitute,journyDate,arrClick,downsideKm,upSideKm);
Log.e("arrclick",String.valueOf(abcd));*//*
sqLiteDB.close();*/
if (listItemsArrr.getArrivalTime() != null) {
int position = textViewArrVal.getSelectionStart();
textViewArrVal.setText(listItemsArrr.getArrivalTime());
} else {
textViewArrVal.setText("");
}
}
}
public void departureClick(View view) {
TextView textViewDepVal = (TextView) view.findViewById(R.id.txtDepTime);
StnNames listItemsDepp = (StnNames) textViewDepVal.getTag();
if (listItemsDepp.getDeptTime() != getCurrentTime()) {
listItemsDepp.setDeptTime(getCurrentTime());
String depTime = getCurrentTime();
int stnId = listItemsDepp.getStnId();
String depClick = "departure";
String upSideKm = listItemsDepp.getStnUpsideKm();
String downsideKm = listItemsDepp.getStnDownSideKm();
sqLiteDB.open();
/*long abc = sqLiteDB.insertJourneySchedule(stnId,"",depTime,userId,journeyId,latitute,longitute,journyDate,depClick);*/
/*long abcd = sqLiteDB.updateJourneySchedule(stnId,"",depTime,userId,journeyId,latitute,longitute,journyDate,depClick,downsideKm,upSideKm);
Log.e("depclick",String.valueOf(abcd));*/
sqLiteDB.close();
if (listItemsDepp.getDeptTime() != null) {
textViewDepVal.setText(listItemsDepp.getDeptTime());
} else {
textViewDepVal.setText("");
}
}
}
public String getCurrentTime() {
Calendar calendar = Calendar.getInstance();
SimpleDateFormat mdformat = new SimpleDateFormat("HH:mm:ss");
String arrDate = mdformat.format(calendar.getTime());
return arrDate;
}
}

Get the position of the row which is clicked and then set onclick false for positions less than clicked position
as follows:
viewHolder.txtStnArr.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.e("Position: " , String.valueOf(position));
for (int i = 0; i < position; i++) {
viewHolder.txtStnArr.setEnable(false);
}
notifyDataSetChanged();
}
});

notifyItemChanged method does not call onBindViewHolder in recyclerview

My code is as shown below:
public class PopularItemsAdapter extends RecyclerView.Adapter<PopularItemsAdapter.MyViewHolder>
implements MyCartListener {
private Context mContext;
private List<FoodTruckItem> foodTruckItemList;
private boolean isClickable = false;
private OnItemClickListener listener;
private List<FoodtruckInfo> foodtruckInfoList = new ArrayList<>();
private List<FoodTruckItem> sessionItem = new ArrayList<>();
private boolean isConflictResolved = false;
public int position = -1;
#Override
public void itemUpdated(int quantity, String itemId) {
for (int i = 0; i < foodTruckItemList.size(); i++) {
if (itemId.equals(foodTruckItemList.get(i).getItemId())) {
foodTruckItemList.get(i).setItemQuantityOrdered(quantity);
// notifyDataSetChanged();
}
}
}
#Override
public void itemRemoved(String itemId) {
for (int j = 0; j < foodTruckItemList.size(); j++) {
if (itemId.equals(foodTruckItemList.get(j).getItemId())) {
foodTruckItemList.remove(j);
// notifyDataSetChanged();
}
}
}
public void addConflictItem(int position) {
isConflictResolved = true;
notifyItemChanged(position);
}
public interface OnItemClickListener {
void onItemClick(FoodTruckItem foodTruckItem, FoodtruckInfo foodtruckInfo);
void showSnackBar(int items, boolean added, int position);
void showRestaurentClosed();
void showWarningDialog(int position);
}
public void addFoodInfo(List<FoodtruckInfo> foodtruckInfos) {
foodtruckInfoList.addAll(foodtruckInfos);
}
public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView itemName, foodPrice, addText, quantityText, addQuantity, removeQuantity;
public ImageView itemImage, itemTag;
public LinearLayout addLayout;
public MyViewHolder(View view) {
super(view);
itemTag = (ImageView) view.findViewById(R.id.itemTag);
itemImage = (ImageView) view.findViewById(R.id.itemImage);
itemName = (TextView) view.findViewById(R.id.itemName);
foodPrice = (TextView) view.findViewById(R.id.foodPrice);
addText = (TextView) view.findViewById(R.id.addText);
addLayout = (LinearLayout) view.findViewById(R.id.addLayout);
quantityText = (TextView) view.findViewById(R.id.quantityText);
addQuantity = (TextView) view.findViewById(R.id.addQuantity);
removeQuantity = (TextView) view.findViewById(R.id.removeQuantity);
view.setOnClickListener(this);
}
#Override
public void onClick(View view) {
FoodtruckInfo foodtruckInfo = new FoodtruckInfo();
//passing the clicked position to the parent class
for (FoodtruckInfo info : foodtruckInfoList) {
if (info.getItemId().equals(foodTruckItemList.get(getAdapterPosition()).getItemId())) {
foodtruckInfo = info;
}
}
listener.onItemClick(foodTruckItemList.get(getAdapterPosition()), foodtruckInfo);
}
}
public PopularItemsAdapter(Context mContext, List<FoodTruckItem> foodTruckItemList, OnItemClickListener listener) {
this.mContext = mContext;
this.foodTruckItemList = foodTruckItemList;
this.listener = listener;
MyCart.getInstance().addListener(this);
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view_popular_items, parent, false);
return new MyViewHolder(itemView);
}
#Override
public int getItemViewType(int position) {
return position;
}
#Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
final FoodTruckItem foodTruckItem = foodTruckItemList.get(position);
if (SessionManager.get(mContext).getFoodTruckItemList() != null) {
sessionItem = SessionManager.get(mContext).getFoodTruckItemList();
for (FoodTruckItem item : sessionItem) {
if (item.getItemId().equals(foodTruckItem.getItemId())) {
// holder.itemTag.setText("MY FAVOURITE");
holder.itemTag.setImageDrawable(ContextCompat.getDrawable(mContext, R.drawable.ic_favorite));
}
}
}
holder.itemName.setText(foodTruckItem.getItemName());
// holder.itemTag.setText(foodTruckItem.getSpecialTag());
holder.foodPrice.setText("$" + String.valueOf(foodTruckItem.getItemPrice()));
Picasso.Builder builder = new Picasso.Builder(mContext);
builder.listener(new Picasso.Listener() {
#Override
public void onImageLoadFailed(Picasso picasso, Uri uri, Exception exception) {
exception.printStackTrace();
}
});
if (!TextUtils.isEmpty(foodTruckItem.getItemImg())) {
builder.build().load(foodTruckItem.getItemImg()).into(holder.itemImage);
}
holder.addText.setOnClickListener(new View.OnClickListener() {
FoodtruckInfo info = new FoodtruckInfo();
#Override
public void onClick(View v) {
for (int l = 0; l < foodtruckInfoList.size(); l++) {
if (foodtruckInfoList.get(l).getItemId().equals(foodTruckItem.getItemId())) {
if (foodtruckInfoList.get(l).getOrderStatus() == 0) {
isClickable = true;
} else {
isClickable = false;
}
}
}
if (isClickable) {
String foodTruckId = null;
if (MyCart.getInstance().getFoodTruckId() != null) {
foodTruckId = MyCart.getInstance().getFoodTruckId();
if (!foodTruckId.equals(foodtruckInfoList.get(position).getFoodTruckId())) {
listener.showWarningDialog(position);
} else {
addItem(holder, position, foodTruckItem);
}
} else {
isConflictResolved = false;
addItem(holder, position, foodTruckItem);
}
} else {
listener.showRestaurentClosed();
}
if (isConflictResolved) {
isConflictResolved = false;
addItem(holder, position, foodTruckItem);
}
}
});
holder.addQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int quantity = foodTruckItem.getItemQuantityOrdered();
quantity += 1;
holder.quantityText.setText(String.valueOf(quantity));
MyCart.getInstance().updateQuantity(quantity, foodTruckItem.getItemId(), false);
}
});
holder.removeQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int quantity = foodTruckItem.getItemQuantityOrdered();
quantity -= 1;
if (quantity == 0) {
MyCart.getInstance().removeItem(foodTruckItem.getItemId(), false);
holder.addLayout.setVisibility(View.INVISIBLE);
holder.addText.setVisibility(View.VISIBLE);
listener.showSnackBar(quantity, false, position);
} else {
holder.quantityText.setText(String.valueOf(quantity));
MyCart.getInstance().updateQuantity(quantity, foodTruckItem.getItemId(), false);
}
}
});
setFontStyle(holder);
}
private void addItem(MyViewHolder holder, int position, FoodTruckItem foodTruckItem) {
holder.addLayout.setVisibility(View.VISIBLE);
holder.addText.setVisibility(View.INVISIBLE);
foodTruckItem.setItemQuantityOrdered(1);
holder.quantityText.setText(String.valueOf(1));
MyCart.getInstance().addItem(foodTruckItem);
MyCart.getInstance().setFoodTruckId(foodtruckInfoList.get(position).getFoodTruckId());
listener.showSnackBar(MyCart.getInstance().getItemList(), true, position);
}
private void setFontStyle(MyViewHolder holder) {
holder.itemName.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
// holder.itemTag.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
holder.foodPrice.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
holder.addText.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
}
#Override
public int getItemCount() {
return foodTruckItemList.size();
}
}
Here addConflictItem() I have written notifyItemChanged , but somehow it is not calling onBindViewHolder , so is there anything missing in the application?

I was having the same problem, and this worked for me, just add those line to your recyclerview declaration, see this Asnswer
DefaultItemAnimator animator = new DefaultItemAnimator() {
#Override
public boolean canReuseUpdatedViewHolder(RecyclerView.ViewHolder viewHolder) {
return true;
}
};
mRecyclerView.setItemAnimator(animator);

As my experience using setOnClickListener in onBindViewHolder is not good idea.
public class PopularItemsAdapter extends RecyclerView.Adapter<PopularItemsAdapter.MyViewHolder>
implements MyCartListener {
private Context mContext;
private List<FoodTruckItem> foodTruckItemList;
private boolean isClickable = false;
private OnItemClickListener listener;
private List<FoodtruckInfo> foodtruckInfoList = new ArrayList<>();
private List<FoodTruckItem> sessionItem = new ArrayList<>();
private boolean isConflictResolved = false;
public int position = -1;
#Override
public void itemUpdated(int quantity, String itemId) {
for (int i = 0; i < foodTruckItemList.size(); i++) {
if (itemId.equals(foodTruckItemList.get(i).getItemId())) {
foodTruckItemList.get(i).setItemQuantityOrdered(quantity);
// notifyDataSetChanged();
}
}
}
#Override
public void itemRemoved(String itemId) {
for (int j = 0; j < foodTruckItemList.size(); j++) {
if (itemId.equals(foodTruckItemList.get(j).getItemId())) {
foodTruckItemList.remove(j);
// notifyDataSetChanged();
}
}
}
public void addConflictItem(int position) {
isConflictResolved = true;
notifyItemChanged(position);
}
public interface OnItemClickListener {
void onItemClick(FoodTruckItem foodTruckItem, FoodtruckInfo foodtruckInfo);
void showSnackBar(int items, boolean added, int position);
void showRestaurentClosed();
void showWarningDialog(int position);
}
public void addFoodInfo(List<FoodtruckInfo> foodtruckInfos) {
foodtruckInfoList.addAll(foodtruckInfos);
}
public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView itemName, foodPrice, addText, quantityText, addQuantity, removeQuantity;
public ImageView itemImage, itemTag;
public LinearLayout addLayout;
MyViewHolder holder;
public MyViewHolder(View view) {
super(view);
itemTag = (ImageView) view.findViewById(R.id.itemTag);
itemImage = (ImageView) view.findViewById(R.id.itemImage);
itemName = (TextView) view.findViewById(R.id.itemName);
foodPrice = (TextView) view.findViewById(R.id.foodPrice);
addText = (TextView) view.findViewById(R.id.addText);
addLayout = (LinearLayout) view.findViewById(R.id.addLayout);
quantityText = (TextView) view.findViewById(R.id.quantityText);
addQuantity = (TextView) view.findViewById(R.id.addQuantity);
removeQuantity = (TextView) view.findViewById(R.id.removeQuantity);
holder = this;
view.setOnClickListener(this);
addText.setOnClickListener(new View.OnClickListener() {
FoodtruckInfo info = new FoodtruckInfo();
#Override
public void onClick(View v) {
int position = getAdapterPosition;
for (int l = 0; l < foodtruckInfoList.size(); l++) {
if (foodtruckInfoList.get(l).getItemId().equals(foodTruckItem.getItemId())) {
if (foodtruckInfoList.get(l).getOrderStatus() == 0) {
isClickable = true;
} else {
isClickable = false;
}
}
}
if (isClickable) {
String foodTruckId = null;
if (MyCart.getInstance().getFoodTruckId() != null) {
foodTruckId = MyCart.getInstance().getFoodTruckId();
if (!foodTruckId.equals(foodtruckInfoList.get(position).getFoodTruckId())) {
listener.showWarningDialog(position);
} else {
addItem(holder, position, foodTruckItem);
}
} else {
isConflictResolved = false;
addItem(holder, position, foodTruckItem);
}
} else {
listener.showRestaurentClosed();
}
if (isConflictResolved) {
isConflictResolved = false;
addItem(holder, position, foodTruckItem);
}
}
});
removeQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int position = getAdapterPosition;
int quantity = foodTruckItem.getItemQuantityOrdered();
quantity -= 1;
if (quantity == 0) {
MyCart.getInstance().removeItem(foodTruckItem.getItemId(), false);
holder.addLayout.setVisibility(View.INVISIBLE);
holder.addText.setVisibility(View.VISIBLE);
listener.showSnackBar(quantity, false, position);
} else {
holder.quantityText.setText(String.valueOf(quantity));
MyCart.getInstance().updateQuantity(quantity, foodTruckItem.getItemId(), false);
}
}
});
addQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int position = getAdapterPosition;
int quantity = foodTruckItem.getItemQuantityOrdered();
quantity += 1;
holder.quantityText.setText(String.valueOf(quantity));
MyCart.getInstance().updateQuantity(quantity, foodTruckItem.getItemId(), false);
}
});
}
#Override
public void onClick(View view) {
FoodtruckInfo foodtruckInfo = new FoodtruckInfo();
//passing the clicked position to the parent class
for (FoodtruckInfo info : foodtruckInfoList) {
if (info.getItemId().equals(foodTruckItemList.get(getAdapterPosition()).getItemId())) {
foodtruckInfo = info;
}
}
listener.onItemClick(foodTruckItemList.get(getAdapterPosition()), foodtruckInfo);
}
}
public PopularItemsAdapter(Context mContext, List<FoodTruckItem> foodTruckItemList, OnItemClickListener listener) {
this.mContext = mContext;
this.foodTruckItemList = foodTruckItemList;
this.listener = listener;
MyCart.getInstance().addListener(this);
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view_popular_items, parent, false);
return new MyViewHolder(itemView);
}
#Override
public int getItemViewType(int position) {
return position;
}
#Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
final FoodTruckItem foodTruckItem = foodTruckItemList.get(position);
if (SessionManager.get(mContext).getFoodTruckItemList() != null) {
sessionItem = SessionManager.get(mContext).getFoodTruckItemList();
for (FoodTruckItem item : sessionItem) {
if (item.getItemId().equals(foodTruckItem.getItemId())) {
// holder.itemTag.setText("MY FAVOURITE");
holder.itemTag.setImageDrawable(ContextCompat.getDrawable(mContext, R.drawable.ic_favorite));
}
}
}
holder.itemName.setText(foodTruckItem.getItemName());
// holder.itemTag.setText(foodTruckItem.getSpecialTag());
holder.foodPrice.setText("$" + String.valueOf(foodTruckItem.getItemPrice()));
Picasso.Builder builder = new Picasso.Builder(mContext);
builder.listener(new Picasso.Listener() {
#Override
public void onImageLoadFailed(Picasso picasso, Uri uri, Exception exception) {
exception.printStackTrace();
}
});
if (!TextUtils.isEmpty(foodTruckItem.getItemImg())) {
builder.build().load(foodTruckItem.getItemImg()).into(holder.itemImage);
}
setFontStyle(holder);
}
private void addItem(MyViewHolder holder, int position, FoodTruckItem foodTruckItem) {
holder.addLayout.setVisibility(View.VISIBLE);
holder.addText.setVisibility(View.INVISIBLE);
foodTruckItem.setItemQuantityOrdered(1);
holder.quantityText.setText(String.valueOf(1));
MyCart.getInstance().addItem(foodTruckItem);
MyCart.getInstance().setFoodTruckId(foodtruckInfoList.get(position).getFoodTruckId());
listener.showSnackBar(MyCart.getInstance().getItemList(), true, position);
}
private void setFontStyle(MyViewHolder holder) {
holder.itemName.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
// holder.itemTag.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
holder.foodPrice.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
holder.addText.setTypeface(Typeface.createFromAsset(mContext.getAssets(), Consts.montserrat_bold));
}
#Override
public int getItemCount() {
return foodTruckItemList.size();
}
}

Just call notifyDataSetChanged() and the RecycleView will refresh

How to set some item unclickable in GridView

For example, I need to judge the contents of the item in the Item can be clicked.
enter image description here
As shown in the picture, I need to get the gray Item cannot be clicked.
Here is my adapter
public class RoomAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Context mContext;
private List<Room> mDatas;
public RoomAdapter(Context context, List<Room> mDatas) {
mInflater = LayoutInflater.from(context);
this.mContext = context;
this.mDatas = mDatas;
}
#Override
public int getCount() {
return mDatas.size();
}
#Override
public Object getItem(int position) {
return mDatas.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Room room = mDatas.get(position);
ViewHolder viewHolder = null;
View view;
if (convertView == null) {
viewHolder = new ViewHolder();
view = mInflater.inflate(R.layout.roomstate_item, null);
viewHolder.tv_roomstate = (TextView) view.findViewById(R.id.tv_roomstate);
viewHolder.tv_roomnumber = (TextView) view.findViewById(R.id.tv_roomnumber);
viewHolder.tv_roomtype = (TextView) view.findViewById(R.id.tv_roomtype);
viewHolder.tv_roomprice = (TextView) view.findViewById(R.id.tv_roomprice);
view.setTag(viewHolder);
}else{
view = convertView;
viewHolder = (ViewHolder) view.getTag();
}
// String nu = room.getRoom_number();
viewHolder.tv_roomstate.setText(room.getRoom_status());
viewHolder.tv_roomnumber.setText(room.getRoom_number());
viewHolder.tv_roomtype.setText(room.getRoomType().getRoom_type_name());
viewHolder.tv_roomprice.setText(room.getRoomType().getRoom_type_price());
if (room.getRoom_status().equals("0") &&room.getRoomType().getRoom_type_name().equals("0")) {
view.setBackgroundResource(R.drawable.single);
view.setClickable(false);
} else if (room.getRoom_status().equals("1") && room.getRoomType().getRoom_type_name().equals("0")) {
view.setBackgroundResource(R.drawable.single_b);
} else if (room.getRoom_status().equals("1") && room.getRoomType().getRoom_type_name().equals("1")) {
view.setBackgroundResource(R.drawable.double_b);
} else if(room.getRoom_status().equals("0") && room.getRoomType().getRoom_type_name().equals("1")){
view.setClickable(false);
view.setBackgroundResource(R.drawable.doubleg);
}
return view;
}
private class ViewHolder {
TextView tv_roomnumber;
TextView tv_roomstate;
TextView tv_roomtype;
TextView tv_roomprice;
}
}
Here is my Activity
public class RoomList extends Activity {
private ImageView iv_back;
private TextView tv_hotelname;
private GridView griv_hotel;
private RoomAdapter adapter;
private String hotelname;
private String url
= "http://jm/user/room/selectRoomByHotelName?hotel_name=";
private List<Room> mRoom;
private RoomType mRoomType;
private boolean isfinish = false;//判断请求是否完成
private String hotel_address;
private String hotel_id;
private Bundle mBundle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_book_room_list);
init();
sendRequestWithOkHttp();
boolean is = true;
while (is) {
if (isfinish) {
adapter = new RoomAdapter(this, mRoom);
griv_hotel.setAdapter(adapter);
griv_hotel.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TextView tv_roomnumber = (TextView) view.findViewById(R.id.tv_roomnumber);
TextView tv_roomstate = (TextView) view.findViewById(R.id.tv_roomstate);
TextView tv_roomprice = (TextView) view.findViewById(R.id.tv_roomprice);
TextView tv_roomtype = (TextView) view.findViewById(R.id.tv_roomtype);
String roomnumber = tv_roomnumber.getText().toString();
String roomstate = tv_roomstate.getText().toString();
String roomtype = tv_roomtype.getText().toString();
String roomprice = tv_roomprice.getText().toString();
Log.e("房间类型",roomtype);
// if (roomstate.equals("0") && roomtype.equals("0")) {
// view.setClickable(false);
// } else if (roomstate.equals("1") && roomtype.equals("0")) {
// view.setClickable(true);
// } else if (roomstate.equals("1") && roomtype.equals("1")) {
// view.setClickable(true);
// } else {
// view.setClickable(false);
// }
mBundle.putString("roomnumber", roomnumber);
mBundle.putString("roomstate", roomstate);
mBundle.putString("roomtype", roomtype);
mBundle.putString("roomprice", roomprice);
mBundle.putString("hoteladdress", hotel_address);
mBundle.putString("hotelid", hotel_id);
Intent intent = new Intent(RoomList.this, BookRoomDetail.class);
intent.putExtras(mBundle);
startActivity(intent);
}
});
is = false;
}
}
}
private void init() {
initView();
initEvents();
}
private void initEvents() {
iv_back.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
finish();
}
});
}
private void initView() {
iv_back = (ImageView) findViewById(R.id.iv_back);
tv_hotelname = (TextView) findViewById(R.id.tv_hotelname);
mBundle = getIntent().getExtras();
hotelname = mBundle.getString("hotelname");
tv_hotelname.setText(hotelname);
griv_hotel = (GridView) findViewById(R.id.griv_hotel);
}
private void sendRequestWithOkHttp() {
new Thread(new Runnable() {
#Override
public void run() {
MediaType MEDIA_TYPE_MARKDOWN
= MediaType.parse("text/x-markdown; charset=utf-8");
try {
OkHttpClient client = new OkHttpClient();
String postBody = hotelname;
Request request = new Request.Builder()
.url(url + hotelname)
.post(RequestBody.create(MEDIA_TYPE_MARKDOWN, postBody))
.build();
Response response = client.newCall(request).execute();
String responseData = response.body().string();
try {
parseJSON(responseData);
isfinish = true;
} catch (JSONException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}
private void parseJSON(String responseData) throws JSONException {
JSONArray JSONArray = new JSONArray(responseData);
mRoom = new ArrayList<Room>();
for (int i = 0; i < JSONArray.length(); i++) {
try {
JSONObject JSON = JSONArray.getJSONObject(i);
String room_number = JSON.getString("room_number");
String room_status = JSON.getString("room_status");
JSONObject jsonObject = JSON.getJSONObject("roomType");
String room_type_name = jsonObject.getString("room_type_name");
String room_type_price = jsonObject.getString("room_type_price");
JSONObject jsonObj = JSON.getJSONObject("hotel");
hotel_id = String.valueOf(jsonObj.getInt("hotel_id"));
hotel_address = jsonObj.getString("hotel_location");
mRoomType = new RoomType(null, room_type_name, room_type_price, null, null);
mRoom.add(new Room(null, room_number, room_status, null, null, mRoomType));
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
I set view.setClickable (false)in my Adapter, but it does not work.

item.setEnabled(false);
when u need to make it clickable call
item.setEnabled(true);
Here item is your edittext or button or anything else
Try this:
if (room.getRoom_status().equals("0") &&room.getRoomType().getRoom_type_name().equals("0")) {
view.setBackgroundResource(R.drawable.single);
view.setEnabled(false);
} else if (room.getRoom_status().equals("1") && room.getRoomType().getRoom_type_name().equals("0")) {
view.setBackgroundResource(R.drawable.single_b);
} else if (room.getRoom_status().equals("1") && room.getRoomType().getRoom_type_name().equals("1")) {
view.setBackgroundResource(R.drawable.double_b);
} else if(room.getRoom_status().equals("0") && room.getRoomType().getRoom_type_name().equals("1")){
view.setEnabled(false);
view.setBackgroundResource(R.drawable.doubleg);
}
else
view.setEnabled(true);

The right way is to write a Boolean value, and let it based on a Boolean value to determine whether to jump.
private boolean checkedIntent = false;
if (roomstate.equals("0") && roomtype.equals("0")) {
checkedIntent = false;
} else if (roomstate.equals("1") && roomtype.equals("0")) {
checkedIntent = true;
} else if (roomstate.equals("1") && roomtype.equals("1")) {
checkedIntent = true;
} else if (roomstate.equals("0") && roomtype.equals("1")) {
checkedIntent = false;
}
if (checkedIntent == true) {
Intent intent = new Intent(RoomList.this, BookRoomDetail.class);
intent.putExtras(mBundle);
startActivity(intent);
}

Update the value from one adapter to another expandable listview in android

I am getting value from checking page adapter.If click the plus image in one list item the count value get increase.I want to update that particular value of child item in expandablelistview adapter.How to update that particular child value from checking page adapter.
Checkinapadater:
#Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
final Movie1 m = movieItems.get(position);
if (m.getfood_totalprice() != null) {
if (!m.getfood_totalprice().equals("null")) {
holder.amount.setText(m.getfood_totalprice());
}
}
if (m.getfood_count() != null) {
if (!m.getfood_count().equals("null")) {
holder.item_count.setText(m.getfood_count());
}
}
holder.plus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int i = Integer.parseInt(holder.item_count.getText().toString());
if(i>=0){
int count = i + 1;
holder.item_count.setText(Integer.toString(count));
value = Integer.toString(count);
}
});
holder.minus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int i = Integer.parseInt(holder.item_count.getText().toString());
if(i>0){
int count = i - 1;
holder.item_count.setText(Integer.toString(count));
}
});
}
Exapanadablelistapater:
#Override
public View getChildView(final int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final Child child = (Child) getChild(groupPosition, childPosition);
final Child modelChild = groups.get(groupPosition).getItems().get(childPosition);
if (convertView == null) {
LayoutInflater inflator = LayoutInflater.from(parent.getContext());
convertView = inflator.inflate(R.layout.detail_list, null);
viewHolder = new ViewHolder();
viewHolder.minus = (ImageView) convertView.findViewById(R.id.minus);
viewHolder.plus = (ImageView) convertView.findViewById(R.id.plus);
viewHolder.green = (ImageView) convertView.findViewById(R.id.green);
viewHolder.red = (ImageView) convertView.findViewById(R.id.red);
viewHolder.item_count = (TextView) convertView.findViewById(R.id.count);
//viewHolder.txtView = (TextView) ((AppCompatActivity)context).findViewById(R.id.checked_item);
convertView.setTag(viewHolder);
}
else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.tv.setText(child.getName());
viewHolder.amount.setText(child.getPrice());
viewHolder.item_count.setText(Integer.toString(child.getCount()));
viewHolder.plus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(modelChild.getCount()>=0) // set your count default 0 when you bind data initially
{
int count = (modelChild.getCount()) + 1;
modelChild.setCount(count);
int s= Integer.parseInt(Detailpage.item.getText().toString());
itemname.setText(Integer.toString(count1));
// viewHolder.txtView.setText(Integer.toString(count1)+"items");
count1=s+1;
Detailpage.item.setText(Integer.toString(count1));
int foodprice=0;
foodprice=Integer.parseInt(child.getPrice());
total1=child.getPrice();
value=Integer.toString(modelChild.getcount());
//
name = modelChild.getName();
id=child.getId();
new AsyncT().execute(user_id,res_id,id,name,total1,value);
groups.get(groupPosition).getItems().set(childPosition, modelChild);
notifyDataSetChanged();
}
}});
viewHolder.minus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(modelChild.getCount()>0) // set your count default 0 when you bind data initially
{ int count = modelChild.getCount() - 1;
modelChild.setCount(count);
int s= Integer.parseInt(Detailpage.item.getText().toString());
count1=s-1;
Detailpage.item.setText(Integer.toString(count1));
name=modelChild.getName();
//
int foodprice=0;
foodprice=Integer.parseInt(child.getPrice());
int total = foodprice * child.getcount();
total1=child.getPrice();
// total1=Integer.toString(total);
value=Integer.toString(count);
id=child.getId();
if(count>0) {
new AsyncT().execute(user_id, res_id, id, name, total1, value);
}
}
modelChild.setChildName(modelChild.getChildName());
// set your other items if any like above
groups.get(groupPosition).getItems().set(childPosition, modelChild);
notifyDataSetChanged();
}
});
return convertView;
}
Movie1 model(checkin page):`
public class Movie1 {
public String food_id,food_count,food_item,food_price,food_resid,food_totalprice;
public void setfood_id(String food_id) {
this.food_id = food_id;
}
public void setfood_count(String food_count) {
this.food_count = food_count;
}
public void setfood_price(String food_price) {
this.food_price = food_price;
}
public void setfood_item(String food_item) {
this.food_item = food_item;
}
public String getfood_item() {
return food_item;
}
public String getfood_count() {
return food_count;
}
public String getfood_price() {
return food_price;
}
public void setfood_resid(String food_resid) {
this.food_resid = food_resid;
}
public String getfood_resid() {
return food_resid;
}
public String getfood_id() {
return food_id;
}
public void setfood_totalprice(String food_totalprice) {
this.food_totalprice = food_totalprice;
}
public String getfood_totalprice() {
return food_totalprice;
}
}
`
Child model:(Expandable listview)
public class Child {
private String Name,childName,item_status,image1,available_from,available_to,price,id,status;
private int Image,count;
public Object getstatus;
public String getName() {
return Name;
}
public void setName(String Name) {
this.Name = Name;
}
public int getImage() {
return Image;
}
public void setImage(int Image) {
this.Image = Image;
}
public void setcount(int count) {
this.count = count;
}
public int getcount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
public String getChildName() {
return childName;
}
public int getCount() {
return count;
}
public void setChildName(String childName) {
this.childName = childName;
}
public void setItem_status(String item_status) {
this.item_status = item_status;
}
public void setImage1(String image1) {
this.image1 = image1;
}
public void setAvailable_to(String available_to) {
this.available_to = available_to;
}
public void setAvailable_from(String available_from) {
this.available_from = available_from;
}
public void setPrice(String price) {
this.price = price;
}
public void setId(String id) {
this.id = id;
}
public String getPrice() {
return price;
}
public String getImage1() {
return image1;
}
public String getItem_status() {
return item_status;
}
public String getId() {
return id;
}
public void setstatus(String status) {
this.status = status;
}
public String getstatus() {
return status;
}
}
`checkin
Expandablelist adapter

Adapter-Showing view only when there is a change in a value

Below is my complete adapter class of sendbird chatting.Currently date with time is displayed with every message.viewHolder.getView("left_time") and viewHolder.getView("right_time") are views for displaying date with time and it is calculated in method getDisplayDateTime.I want date with time to be displayed only when there is a change in date.For example if there is set of messages dated 23rd june then date with time should be displayed only for the first message with date 23rd june.
I tried doing that by detecting whenever there is a change in date by storing date in xyz variable and comparing it with date of every message and whenever they are unequal then making date view of that message visible and assigning the new date to xyz variable for comparison with future messages.But this approach fails when i scroll down and scroll up list.
What is the ideal approach for achieving this?
public class SendBirdMessagingAdapter extends BaseAdapter {
private static final int TYPE_UNSUPPORTED = 0;
private static final int TYPE_MESSAGE = 1;
private static final int TYPE_SYSTEM_MESSAGE = 2;
private static final int TYPE_FILELINK = 3;
private static final int TYPE_BROADCAST_MESSAGE = 4;
private static final int TYPE_TYPING_INDICATOR = 5;
private final Context mContext;
private final LayoutInflater mInflater;
private final ArrayList<Object> mItemList;
private Hashtable<String, Long> mReadStatus;
private Hashtable<String, Long> mTypeStatus;
private List<MessagingChannel.Member> mMembers;
private long mMaxMessageTimestamp = Long.MIN_VALUE;
private long mMinMessageTimestamp = Long.MAX_VALUE;
public SendBirdMessagingAdapter(Context context) {
mContext = context;
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mItemList = new ArrayList<Object>();
mReadStatus = new Hashtable<String, Long>();
mTypeStatus = new Hashtable<String, Long>();
}
#Override
public int getCount() {
return mItemList.size() + ((mTypeStatus.size() <= 0) ? 0 : 1);
}
#Override
public Object getItem(int position) {
if (position >= mItemList.size()) {
ArrayList<String> names = new ArrayList<String>();
for (MessagingChannel.Member member : mMembers) {
if (mTypeStatus.containsKey(member.getId())) {
names.add(member.getName());
}
}
return names;
}
return mItemList.get(position);
}
public void delete(Object object) {
mItemList.remove(object);
}
public void clear() {
mMaxMessageTimestamp = Long.MIN_VALUE;
mMinMessageTimestamp = Long.MAX_VALUE;
mReadStatus.clear();
mTypeStatus.clear();
mItemList.clear();
}
public void resetReadStatus(Hashtable<String, Long> readStatus) {
mReadStatus = readStatus;
}
public void setReadStatus(String userId, long timestamp) {
if (mReadStatus.get(userId) == null || mReadStatus.get(userId) < timestamp) {
mReadStatus.put(userId, timestamp);
}
}
public void setTypeStatus(String userId, long timestamp) {
if (userId.equals(SendBird.getUserId())) {
return;
}
if (timestamp <= 0) {
mTypeStatus.remove(userId);
} else {
mTypeStatus.put(userId, timestamp);
}
}
#Override
public long getItemId(int position) {
return position;
}
public void addMessageModel(MessageModel messageModel) {
if (messageModel.isPast()) {
mItemList.add(0, messageModel);
} else {
mItemList.add(messageModel);
}
updateMessageTimestamp(messageModel);
}
private void updateMessageTimestamp(MessageModel model) {
mMaxMessageTimestamp = mMaxMessageTimestamp < model.getTimestamp() ? model.getTimestamp() : mMaxMessageTimestamp;
mMinMessageTimestamp = mMinMessageTimestamp > model.getTimestamp() ? model.getTimestamp() : mMinMessageTimestamp;
}
public long getMaxMessageTimestamp() {
return mMaxMessageTimestamp == Long.MIN_VALUE ? Long.MAX_VALUE : mMaxMessageTimestamp;
}
public long getMinMessageTimestamp() {
return mMinMessageTimestamp == Long.MAX_VALUE ? Long.MIN_VALUE : mMinMessageTimestamp;
}
public void setMembers(List<MessagingChannel.Member> members) {
mMembers = members;
}
#Override
public int getItemViewType(int position) {
if (position >= mItemList.size()) {
return TYPE_TYPING_INDICATOR;
}
Object item = mItemList.get(position);
if (item instanceof Message) {
return TYPE_MESSAGE;
} else if (item instanceof FileLink) {
return TYPE_FILELINK;
} else if (item instanceof SystemMessage) {
return TYPE_SYSTEM_MESSAGE;
} else if (item instanceof BroadcastMessage) {
return TYPE_BROADCAST_MESSAGE;
}
return TYPE_UNSUPPORTED;
}
#Override
public int getViewTypeCount() {
return 6;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
final Object item = getItem(position);
if (convertView == null || ((ViewHolder) convertView.getTag()).getViewType() != getItemViewType(position)) {
viewHolder = new ViewHolder();
viewHolder.setViewType(getItemViewType(position));
switch (getItemViewType(position)) {
case TYPE_UNSUPPORTED:
convertView = new View(mInflater.getContext());
convertView.setTag(viewHolder);
break;
case TYPE_MESSAGE: {
TextView tv;
CircularImageView iv;
View v;
convertView = mInflater.inflate(R.layout.sendbird_view_messaging_message, parent, false);
v = convertView.findViewById(R.id.left_container);
viewHolder.setView("left_container", v);
iv = (CircularImageView) convertView.findViewById(R.id.img_left_thumbnail);
viewHolder.setView("left_thumbnail", iv);
tv = (TextView) convertView.findViewById(R.id.txt_left);
viewHolder.setView("left_message", tv);
tv = (TextView) convertView.findViewById(R.id.txt_left_name);
viewHolder.setView("left_name", tv);
tv = (TextView) convertView.findViewById(R.id.txt_left_time);
viewHolder.setView("left_time", tv);
v = convertView.findViewById(R.id.right_container);
viewHolder.setView("right_container", v);
iv = (CircularImageView) convertView.findViewById(R.id.img_right_thumbnail);
viewHolder.setView("right_thumbnail", iv);
tv = (TextView) convertView.findViewById(R.id.txt_right);
viewHolder.setView("right_message", tv);
tv = (TextView) convertView.findViewById(R.id.txt_right_name);
viewHolder.setView("right_name", tv);
tv = (TextView) convertView.findViewById(R.id.txt_right_time);
viewHolder.setView("right_time", tv);
tv = (TextView) convertView.findViewById(R.id.txt_right_status);
viewHolder.setView("right_status", tv);
convertView.setTag(viewHolder);
break;
}
case TYPE_SYSTEM_MESSAGE: {
convertView = mInflater.inflate(R.layout.sendbird_view_system_message, parent, false);
viewHolder.setView("message", convertView.findViewById(R.id.txt_message));
convertView.setTag(viewHolder);
break;
}
case TYPE_BROADCAST_MESSAGE: {
convertView = mInflater.inflate(R.layout.sendbird_view_system_message, parent, false);
viewHolder.setView("message", convertView.findViewById(R.id.txt_message));
convertView.setTag(viewHolder);
break;
}
case TYPE_FILELINK: {
TextView tv;
CircularImageView civ;
ImageView iv;
View v;
convertView = mInflater.inflate(R.layout.sendbird_view_messaging_filelink, parent, false);
v = convertView.findViewById(R.id.left_container);
viewHolder.setView("left_container", v);
civ = (CircularImageView) convertView.findViewById(R.id.img_left_thumbnail);
viewHolder.setView("left_thumbnail", civ);
iv = (ImageView) convertView.findViewById(R.id.img_left);
viewHolder.setView("left_image", iv);
tv = (TextView) convertView.findViewById(R.id.txt_left_name);
viewHolder.setView("left_name", tv);
tv = (TextView) convertView.findViewById(R.id.txt_left_time);
viewHolder.setView("left_time", tv);
v = convertView.findViewById(R.id.right_container);
viewHolder.setView("right_container", v);
civ = (CircularImageView) convertView.findViewById(R.id.img_right_thumbnail);
viewHolder.setView("right_thumbnail", civ);
iv = (ImageView) convertView.findViewById(R.id.img_right);
viewHolder.setView("right_image", iv);
tv = (TextView) convertView.findViewById(R.id.txt_right_name);
viewHolder.setView("right_name", tv);
tv = (TextView) convertView.findViewById(R.id.txt_right_time);
viewHolder.setView("right_time", tv);
tv = (TextView) convertView.findViewById(R.id.txt_right_status);
viewHolder.setView("right_status", tv);
convertView.setTag(viewHolder);
convertView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
new AlertDialog.Builder(mContext)
.setTitle("Foodvite")
.setMessage("Do you want to download this file?")
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
try {
downloadUrl((FileLink) item, mContext);
} catch (IOException e) {
e.printStackTrace();
}
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
})
.create()
.show();
}
});
break;
}
case TYPE_TYPING_INDICATOR: {
convertView = mInflater.inflate(R.layout.sendbird_view_typing_indicator, parent, false);
viewHolder.setView("message", convertView.findViewById(R.id.txt_message));
convertView.setTag(viewHolder);
break;
}
}
}
viewHolder = (ViewHolder) convertView.getTag();
switch (getItemViewType(position)) {
case TYPE_UNSUPPORTED:
break;
case TYPE_MESSAGE:
Message message = (Message) item;
if (message.getSenderId().equals(SendBird.getUserId())) {
viewHolder.getView("left_container", View.class).setVisibility(View.GONE);
viewHolder.getView("right_container", View.class).setVisibility(View.VISIBLE);
displayUrlImage(viewHolder.getView("right_thumbnail", CircularImageView.class), message.getSenderImageUrl(), true);
viewHolder.getView("right_name", TextView.class).setText(message.getSenderName());
viewHolder.getView("right_message", TextView.class).setText(message.getMessage());
viewHolder.getView("right_time", TextView.class).setText(getDisplayDateTime(mContext, message.getTimestamp()));
int readCount = 0;
for (String key : mReadStatus.keySet()) {
if (key.equals(message.getSenderId())) {
readCount += 1;
continue;
}
if (mReadStatus.get(key) >= message.getTimestamp()) {
readCount += 1;
}
}
if (readCount < mReadStatus.size()) {
if (mReadStatus.size() - readCount > 1) {
viewHolder.getView("right_status", TextView.class).setText("Unread " + (mReadStatus.size() - readCount));
} else {
viewHolder.getView("right_status", TextView.class).setText("Unread");
}
} else {
viewHolder.getView("right_status", TextView.class).setText("");
}
viewHolder.getView("right_container").setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
new AlertDialog.Builder(mContext)
.setTitle("Foodvite")
.setMessage("Do you want to delete a message?")
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
SendBird.deleteMessage(((Message) item).getMessageId(), new DeleteMessageHandler() {
#Override
public void onError(SendBirdException e) {
e.printStackTrace();
}
#Override
public void onSuccess(long messageId) {
mSendBirdMessagingAdapter.delete(item);
mSendBirdMessagingAdapter.notifyDataSetChanged();
Toast.makeText(mContext, "Message has been deleted.", Toast.LENGTH_SHORT).show();
}
});
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
})
.create()
.show();
return true;
}
});
} else {
viewHolder.getView("left_container", View.class).setVisibility(View.VISIBLE);
viewHolder.getView("right_container", View.class).setVisibility(View.GONE);
displayUrlImage(viewHolder.getView("left_thumbnail", CircularImageView.class), message.getSenderImageUrl(), true);
viewHolder.getView("left_name", TextView.class).setText(message.getSenderName());
viewHolder.getView("left_message", TextView.class).setText(message.getMessage());
viewHolder.getView("left_time", TextView.class).setText(getDisplayDateTime(mContext, message.getTimestamp()));
if(isGroupChat)
viewHolder.getView("left_name", TextView.class).setVisibility(View.VISIBLE);
else
viewHolder.getView("left_name", TextView.class).setVisibility(View.GONE);
}
break;
case TYPE_SYSTEM_MESSAGE:
SystemMessage systemMessage = (SystemMessage) item;
viewHolder.getView("message", TextView.class).setText(Html.fromHtml(systemMessage.getMessage()));
break;
case TYPE_BROADCAST_MESSAGE:
BroadcastMessage broadcastMessage = (BroadcastMessage) item;
viewHolder.getView("message", TextView.class).setText(Html.fromHtml(broadcastMessage.getMessage()));
break;
case TYPE_FILELINK:
FileLink fileLink = (FileLink) item;
if (fileLink.getSenderId().equals(SendBird.getUserId())) {
viewHolder.getView("left_container", View.class).setVisibility(View.GONE);
viewHolder.getView("right_container", View.class).setVisibility(View.VISIBLE);
displayUrlImage(viewHolder.getView("right_thumbnail", ImageView.class), fileLink.getSenderImageUrl(), true);
viewHolder.getView("right_name", TextView.class).setText(fileLink.getSenderName());
if (fileLink.getFileInfo().getType().toLowerCase().startsWith("image")) {
displayUrlImage(viewHolder.getView("right_image", ImageView.class), fileLink.getFileInfo().getUrl());
} else {
viewHolder.getView("right_image", CircularImageView.class).setImageResource(R.drawable.sendbird_icon_file);
}
viewHolder.getView("right_time", TextView.class).setText(getDisplayDateTime(mContext, fileLink.getTimestamp()));
int readCount = 0;
for (String key : mReadStatus.keySet()) {
if (key.equals(fileLink.getSenderId())) {
continue;
}
if (mReadStatus.get(key) < fileLink.getTimestamp()) {
readCount += 1;
}
}
if (readCount < mReadStatus.size() - 1) {
viewHolder.getView("right_status", TextView.class).setText("Unread");
} else {
viewHolder.getView("right_status", TextView.class).setText("");
}
} else {
viewHolder.getView("left_container", View.class).setVisibility(View.VISIBLE);
viewHolder.getView("right_container", View.class).setVisibility(View.GONE);
displayUrlImage(viewHolder.getView("left_thumbnail", ImageView.class), fileLink.getSenderImageUrl(), true);
viewHolder.getView("left_name", TextView.class).setText(fileLink.getSenderName());
if (fileLink.getFileInfo().getType().toLowerCase().startsWith("image")) {
displayUrlImage(viewHolder.getView("left_image", ImageView.class), fileLink.getFileInfo().getUrl());
} else {
viewHolder.getView("left_image", CircularImageView.class).setImageResource(R.drawable.sendbird_icon_file);
}
if(isGroupChat)
viewHolder.getView("left_name", TextView.class).setVisibility(View.VISIBLE);
else
viewHolder.getView("left_name", TextView.class).setVisibility(View.GONE);
viewHolder.getView("left_time", TextView.class).setText(getDisplayDateTime(mContext, fileLink.getTimestamp()));
}
break;
case TYPE_TYPING_INDICATOR: {
int itemCount = ((List) item).size();
String typeMsg = ((List) item).get(0)
+ ((itemCount > 1) ? " +" + (itemCount - 1) : "")
+ ((itemCount > 1) ? " are " : " is ")
+ "typing...";
viewHolder.getView("message", TextView.class).setText(typeMsg);
break;
}
}
return convertView;
}
public boolean checkTypeStatus() {
/**
* Clear an old type status.
*/
for (String key : mTypeStatus.keySet()) {
Long ts = mTypeStatus.get(key);
if (System.currentTimeMillis() - ts > 10 * 1000L) {
mTypeStatus.remove(key);
return true;
}
}
return false;
}
private class ViewHolder {
private Hashtable<String, View> holder = new Hashtable<String, View>();
private int type;
public int getViewType() {
return this.type;
}
public void setViewType(int type) {
this.type = type;
}
public void setView(String k, View v) {
holder.put(k, v);
}
public View getView(String k) {
return holder.get(k);
}
public <T> T getView(String k, Class<T> type) {
return type.cast(getView(k));
}
}
}
private static String getDisplayDateTime(Context context, long milli) {
Date date = new Date(milli);
if (System.currentTimeMillis() - milli < 60 * 60 * 24 * 1000l) {
return DateFormat.getTimeFormat(context).format(date);
}
return DateFormat.getDateFormat(context).format(date) + " " + DateFormat.getTimeFormat(context).format(date);
}

Try below code for your method,
private static String getDisplayDateTime(Context context, long milli, long milli2)
{
Date date = new Date(milli);
Date previousDate = new Date(milli2);
String strCurrentDate = "", strPreviousDate = "";
if (System.currentTimeMillis() - milli < 60 * 60 * 24 * 1000l)
{
strCurrentDate = DateFormat.getTimeFormat(context).format(date);
if(milli2 != -1)
strPreviousDate = DateFormat.getTimeFormat(context).format(previousDate);
//return strCurrentDate.equals(strPreviousDate) ? "" : strCurrentDate;
}
else
{
strCurrentDate = DateFormat.getDateFormat(context).format(date) + " " + DateFormat.getTimeFormat(context).format(date);
if(milli2 != -1)
strPreviousDate = DateFormat.getDateFormat(context).format(strPreviousDate) + " " + DateFormat.getTimeFormat(context).format(strPreviousDate);
}
return strCurrentDate.equals(strPreviousDate) ? "" : strCurrentDate;
}
Now call your methods like below
if(position > 0)
{
final Object previousItem = getItem(position - 1);
Message previousMessage = (Message) previousItem;
viewHolder.getView("right_time", TextView.class).setText(getDisplayDateTime(mContext, message.getTimestamp(), previousMessage.getTimestamp()));
}
else
{
viewHolder.getView("right_time", TextView.class).setText(getDisplayDateTime(mContext, message.getTimestamp(), -1));
}

I had a similar problem (ref this SO Question) few months ago and nothing worked except extending from ArrayAdapter<MyObject> instead of BaseAdapter.
So, change the base class of your adapter to ArrayAdapter<MyObject> and implement the prompted method of the abstract class. you might need to move some you your existing code to these overridden methods for better performance.

You can force the system to redraw all items by calling BaseAdapter.notifyDataSetChanged()