i've this issue made me crazy. When retrieved JSON data i will use this my adapter:
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
if (holder instanceof OriginalViewHolder) {
final DomandaQuizTipo1 domandaQuiz1 = items.get(position);
OriginalViewHolder vItem = (OriginalViewHolder) holder;
/* Getting each answer from array of answer */
Risposta1 risposta1 = domandaQuiz1.getRisposte().get(0);
Risposta1 risposta2 = domandaQuiz1.getRisposte().get(1);
Risposta1 risposta3 = domandaQuiz1.getRisposte().get(2);
/* Get and set text of question */
vItem.domanda.setTypeface(typefaceRegular);
vItem.domanda.setText(domandaQuiz1.getDomanda());
/* Get and set text of answer 1 */
vItem.risposta1.setText(risposta1.getRisposta());
vItem.risposta1.setTextOn(risposta1.getRisposta());
vItem.risposta1.setTextOff(risposta1.getRisposta());
/* Get and set text of answer 2 */
vItem.risposta2.setText(risposta2.getRisposta());
vItem.risposta2.setTextOn(risposta2.getRisposta());
vItem.risposta2.setTextOff(risposta2.getRisposta());
/* Get and set text of answer 3 */
vItem.risposta3.setText(risposta3.getRisposta());
vItem.risposta3.setTextOn(risposta3.getRisposta());
vItem.risposta3.setTextOff(risposta3.getRisposta());
/* When i click the first answer uncheck 2nd and 3rd */
vItem.risposta1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position] = items.get(position).getRisposte().get(0).getPunteggio();
MainActivity.UpdatePunteggioTotale();
vItem.risposta2.setChecked(false);
vItem.risposta3.setChecked(false);
}
});
/* When i click the second answer uncheck 1st and 3rd */
vItem.risposta2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position] = items.get(position).getRisposte().get(1).getPunteggio();
MainActivity.UpdatePunteggioTotale();
Log.d("adapterposition", "POS" + position);
vItem.risposta1.setChecked(false);
vItem.risposta3.setChecked(false);
}
});
/* When i click the third answer uncheck 1st and 2nd */
vItem.risposta3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position] = items.get(position).getRisposte().get(2).getPunteggio();
MainActivity.UpdatePunteggioTotale();
vItem.risposta1.setChecked(false);
vItem.risposta2.setChecked(false);
}
});
} else {
((ProgressViewHolder) holder).progressBar.setIndeterminate(true);
}
}
My issue is this: in a recyclerview of each question that contains 3 answers to choose, when i click on one of answer (ex. first toggle button) is checked correctly but when i scroll recycler view i see other question with answer (ex. first toggle button) checked.
How can i avoid this issue? Take a look from this gif i putted below.
Check gif this please to understand
You should add a field like a selected (local not server) and check that's is selected and change item ui
if(vItem.selected==1)
vItem.risposta1.setChecked(true);
else
vItem.risposta1.setChecked(false);
if(vItem.selected==2)
vItem.risposta2.setChecked(true);
else
vItem.risposta2.setChecked(false);
if(vItem.selected==3)
vItem.risposta3.setChecked(true);
else
vItem.risposta3.setChecked(false);
vItem.risposta1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position].selected=1;
notifyItemChange(adapterPosition);
}
});
vItem.risposta2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position].selected=2;
notifyItemChange(adapterPosition);
}
});
vItem.risposta3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MainActivity.punteggiDomandeQuiz1[position].selected=3;
notifyItemChange(adapterPosition);
}
});
You have to set the status of each toggle button in onBindViewHolder.
Something like:
vItem.risposta1.setText(risposta1.getRisposta());
//...
vItem.risposta1.setChecked(risposta1.isChecked());
Also when you update the data in the OnClickListener you have to notify the adapter:
adapter.notifyDataSetChanged();
Related
So, I followed this link for single click functionality using a radio button in my case inside a recyclerview. Its working almost fine. Only facing one issue, is when you try tapping twice on the first item of recyclerview, it always stays true even though you try hitting any other item after that. Below is the logic which I tried to implement.
private List<Profile> profileList;
private Context context;
private RadioButton lastChecked = null;
private int lastCheckedPos = 0;
public void onBindViewHolder(#NonNull MyHolder holder, int position) {
Profile profile = profileList.get(position);
holder.imgRadioButton.setChecked(profile.isSelected());
holder.imgRadioButton.setTag(position);
holder.imgRadioButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int clickpos = (Integer) holder.imgRadioButton.getTag();
if (lastCheckedPos != clickpos) {
if (holder.imgRadioButton.isChecked()) {
if (lastChecked != null) {
lastChecked.setChecked(false);
profileList.get(lastCheckedPos).setSelected(false);
}
lastChecked = holder.imgRadioButton;
lastCheckedPos = clickpos;
} else {
lastChecked = null;
}
profileList.get(clickpos).setSelected(holder.imgRadioButton.isChecked());
}
}
});
}
Dont know where its messing up any logic. But I want it to work in a regular way how radio button functions, but in a recyclerview.
You need to try this.
Add lastChecked.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
lastCheckededPos = getAdapterPosition();
notifyDataSetChanged();
}
});
to the ViewHolder() constructor.
Then use this in onBindViewHolder() method:
// this condition un-checks previous selections
holder.lastChecked.setChecked(lastCheckedPos == position);
That's it. Now your radio button is selected One at a time and selecting other radio button will un-select previous selection.
I have a RecyclerView with post cards. So there is a like button in every post card. When I tap on a like button. Sometimes it works fine and updates on current item. But after some scroll when I tap on like button it updates on another item simultaneously.
It doesn't send that data to server. But, only the view is updated. Then when I scroll up and down again. The data goes back to normal.
Problem is in the following onClick method:-
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(DataSnapshot dataSnapshot) {
if (dataSnapshot.child("like").exists()){
holder.like.setImageResource(R.drawable.ic_favorite_red_500_36dp);
holder.like.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("like").removeValue();
}
});
}else if(dataSnapshot.child("dislike").exists()) {
holder.like.setImageResource(R.drawable.brokenheart);
holder.like.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("dislike").removeValue();
}
});
}else{
holder.like.setImageResource(R.drawable.ic_favorite_border_red_500_36dp);
holder.like.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("dislike").removeValue();
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("like").setValue(true);
}
});
}
}
#Override
public void onCancelled(DatabaseError databaseError) {
}
});
holder.like.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View view) {
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("like").removeValue();
FirebaseDatabase.getInstance().getReference().child("topics").child("likes").child(data.getId()).child(username).child("dislike").setValue(true);
return true;
}
});
Full Adapter class https://pastebin.com/UnFGahWT
Try the following:-
Set Your on click listeners in the public ViewHolder(View itemView) method and make Your ViewHolder class implement the View.OnClickListener.
In Adapter add:
public Topic getItem(int position) {
return topics.get(position);
}
In ViewHolder's onClick method add:
int position = getAdapterPosition();
if (position == RecyclerView.NO_POSITION) return;
item = getItem(position);
Thus You will get the exact object You need to change or do something with it.
I want this result from recyclerview in my project, here 3 different text views and when i select any text view then change its background.
holder.llAns1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
holder.llAns1.setBackgroundResource(R.drawable.que_correct_back);
holder.llAns2.setBackgroundResource(R.drawable.round_strock_green);holder.llAns3.setBackgroundResource(R.drawable.round_strock_green);
allAns.add(holder.tvans1.getText().toString());
correctans = userlist.get(position).get("correctans");
/*
check if selected option is correct
* */
if(holder.tvans1.getText().toString().equals(correctans)){
CorrectAns.add(userlist.get(position).get("ans1"));
} else {
try {
CorrectAns.remove(position);
}catch (IndexOutOfBoundsException e){
}
}
});
holder.llAns2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
holder.llAns2.setTag(position);
holder.llAns2.setBackgroundResource(R.drawable.que_correct_back);
holder.llAns1.setBackgroundResource(R.drawable.round_strock_green);
holder.llAns3.setBackgroundResource(R.drawable.round_strock_green);correctans = userlist.get(position).get("correctans");
/*
check if selected option is correct
* */
if(holder.tvans2.getText().equals(correctans)){
CorrectAns.add(userlist.get(position).get("ans2"));
Log.d("corrAns1",String.valueOf(CorrectAns));
} else {
try {
CorrectAns.remove(correctans);
}
catch (IndexOutOfBoundsException e){}
Log.d("corrAns2",String.valueOf(CorrectAns));
}
}
});
holder.llAns3.setTag(position);
holder.llAns3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
holder.llAns3.setBackgroundResource(R.drawable.que_correct_back); /*set drawable if correct option is selected*/
holder.llAns2.setBackgroundResource(R.drawable.round_strock_green);
holder.llAns1.setBackgroundResource(R.drawable.round_strock_green);
correctans = userlist.get(position).get("correctans");
/*
check if selected option is correct
* */
if(holder.tvans3.getText().equals(correctans)){
CorrectAns.add(userlist.get(position).get("ans3"));
Log.d("corrAns1",String.valueOf(CorrectAns));
}else {
try {
CorrectAns.remove(correctans);}catch (IndexOutOfBoundsException e){}
Log.d("corrAns2",String.valueOf(CorrectAns));
}
}
});
To implement such Ui and functionality you can use viewpager instead of recycler view with a view (Item view) which display single question and answer every time and when user pick answer (store full model) store in Arraylist. in View pager you can swap views also from code using setCurrentItem(). After all that question and all, you can display result in new activity or fragment.
What I want is when I click the "x" button of the second item, it will remove the second item and then make the "+" of the first item visible. Here is what I try but not work, the "+" button is not showed.
holder.ivDelete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
View view = recyclerView.getChildAt(position - 1);
holder.ivAdd = (ImageView) view.findViewById(R.id.img_add_items);
holder.ivAdd.setVisibility(View.VISIBLE);
list.remove(position);
notifyDataSetChanged();
}
});
Try this code,
holder.ivDelete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
View view = recyclerView.getChildItemId(position - 1);
holder.ivAdd = (ImageView) view.findViewById(R.id.img_add_items);
holder.ivAdd.setVisibility(View.VISIBLE);
list.remove(position);
notifyDataSetChanged();
}
});
I hope that will help you for solving your problem.
I am using this library this library.I used the code described in its description on github. looks like this I have event for the menu buttons, not its main Button. i want to get its main button's click event for make rest layout blur when its clicked/expended. even want to hide or set its default state when user click or touch somewhere else on screen.
FloatingActionButton actionC = new FloatingActionButton(getBaseContext());
actionC.setIcon(R.drawable.notes);
actionC.setTitle("Add note");
actionC.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//
}
});
FloatingActionsMenu floatingActionsMenu = (FloatingActionsMenu)findViewById(R.id.multiple_actions);
floatingActionsMenu.addButton(actionC);
// ((FloatingActionsMenu) findViewById(R.id.multiple_actions)).addButton(actionC);
final FloatingActionButton actionA = (FloatingActionButton) findViewById(R.id.action_a);
actionA.setIcon(R.drawable.event);
actionA.setTitle("Make life Event");
actionA.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//
}
});
and the answer is .
floatingActionsMenu.setOnFloatingActionsMenuUpdateListener(new FloatingActionsMenu.OnFloatingActionsMenuUpdateListener() {
#Override
public void onMenuExpanded() {
Toast.makeText(Launcher.this, "Fdf", Toast.LENGTH_LONG).show();
}
#Override
public void onMenuCollapsed() {
}
});