Develop Reference

Listener on EditText inside a CardView inside a RecyclerView

So I have a pretty straightforward RecycleView controlled by an adapter. Each item in the list is a custom object (CharacterModel), displayed in CardViews. Each CardView displays the fields of the object (like name and hp). I want these fields to be able to change the value. What I want is to know how to setup a listener so that when I click one of the EditText I can set the value for that object and that field.
The closest I got was with this tutorial: https://tutorialwing.com/android-recyclerview-tutorial-example/
But that only allows me to identify which CardView (which object) I clicked. Not which EditText inside that CardView.

try something like that
In your onBindViewHolder add:
viewholder.eT_name.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View view, boolean isFocused) {
if(isFocused)
{
//your action
}
}
});

Conditional setHint/setText EditText Android

Maybe there is a simple solution to my problem, but i´m not able to find it.
I have a ListView with a list of users. Each row has an EditText to enter the username. I want to set hint text for each user like: "user1, user2, user3, etc", used as default name. The user can click on the EditText and change this name, so the hint text dissapears and the user can enter his name, or leave this default name if he wants.
When the ListView is too long, I have the problem of the view recycling, that duplicates the names. I solved it by using a setOnFocusChangeListener for the EditText, and storing the name for each row, and it´s working fine, but I´d like that when I have a long list, keep the hint text or text introduced by the user for each EditText when scrolling the list.
I don´t know how to modify my adapter to set the name/hint for each EditText.
Any idea?
Thanks a lot.

Create one list in your activity
List<String> yourlist = new ArrayList();
yourlist.add("user1");
yourlist.add("user2");
yourlist.add("user3");....
pass this list to adapter then in adapter,
holder.youredittext.setHint(yourlist.get(position));
if your passing number of items to adapter then create one model class then pass to adapter.

I have an adapter like this:
public View getView(final int position, View convertView, ViewGroup parent)
{
View item = convertView;
if(item == null)
{
LayoutInflater inflater = context.getLayoutInflater();
item = inflater.inflate(R.layout.setup_jugador, null);
holder = new ViewHolder();
holder.nombre = (EditText) item.findViewById(R.id.nombre);
// Establecemos el tag
item.setTag(holder);
}
else
{
holder = (ViewHolder)item.getTag();
}
holder.nombre.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if(!hasFocus){
EditText et = (EditText) v.findViewById(R.id.nombre);
// Here I store the name
jugadores.get(position).setNombre(et.getText().toString());
}
}
});
// Update EditText
holder.nombre.setText(jugadores.get(position).getNombre());
// Another option is
holder.nombre.setHint(jugadores.get(position).getNombre());
return(item);
}
jugadores is a list that stores the names. Initially it has user1, user2, etc.
I could setHint when Item==null, but I have to update the text at the end of the adapter, and when scrolling, the view recycling changes the items that are invisible.
I only see 8 items, and when scrolling, if I change first item, item number 9 also change. If I use setText, it becomes black, and if I use setHint, first item becomes grey.
I can´t put hint value in layout because I´d like to add the row number to the name. I tried using a boolean value in the class used as model in the adapter to show that the name has been modified, check this value using position index in the list, and use setText or setHint according to that, but doesn´t work.

EditText Inside ListView Shows Random value

I have EditText inside ListView for inline editing. The user can modify its value & the values are then stored in the SQLite database.
I am using Custom DataAdapter for populating ListView.
There are 15 rows in the listview. at a time 4 rows are visible, to see other rows scrollbar is used (Up / Down)
Issue:
ListView is loaded for the first time. User writes into the EditText 1,2,3,4 in each EditText.
The Scrollbar is moved down & one by one the user enters data into all the rows.
When the user moves the Scroll bar UP to see the first 4 rows... the 4th row shows wrong data instead of 4 it shows 14, which is the last value entered by the user (OR my have some other random value forexample 10/13/11 etc)
In my Custom DataAdapter class i am storing the user input into the datasource when the EditText loses Focus as shown below:
public View getView(int position, View convertView, ViewGroup parent) {
//txtComments is an EditText
holder.txtComments.setId(position);
holder.txtComments.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus){
final int position = v.getId();
final EditText tempComments = (EditText) v;
// items: the DataSource for the listView
items.get(position).Comments = tempComments.getText().toString();
}
}
});
}
EDIT:
I have also tried the TEXTWATCHER but it doest not work for me.
After extensive testing; we found that this issue occures randomly for example sometimes ExitText11 will show wrong value another time ExitText4 will show wrong value OR both of them will show wrong values & this behaviour changes while moving scrollbar up down.

Change text of edit text on button click inside custom adapter

How to change text in edit text which is embedded in a list view. i want to the change the text's value on button click
holder.txtQty.setTag(position);
holder.plus.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String val = holder.txtQty.getText().toString();
Float f = new Float(val);
f = f + 1;
holder.txtQty.setText(f.toString().replace(".0", "").trim());
}
});
but on this only the first and last rows edit text change . i need the corresponding edit text to change

I would get the position in the list of the text you wish to change, write a public method to replace the content at that position and then notify the custom adapter that the data set has changed.
For example:
public void replaceItemAt(int position, String newText)
{
//Replace the item in the array list
this.textfieldarraylist.set(position, newText);
//Let the custom adapter know it needs to refresh the view
this.notifyDataSetChanged();
}

if you want to change text of edittext then you can store it in an arraylist. suppose if 3rd element is clicked then you can just get(position) from arraylist and then set it. Initially set all values with default. so in this way you can set and finally get text from your arraylist.
every time when edittext text will change then get the position and then save it to your arraylist...

Android EditText within a ListView

I have created a custom Array Adapter to bind a custom row that contains some static text and an editable EditText. I am trying to register to be notified when the user changes the text within the edit text and when notified to determine which ArrayList row the modified EditText corresponds to.
In the past with other types of views such as a Spinner I could simply put a reference to the parent view and the row number into the tag for the Spinner view. And then when I was notified that the value changed I read the tag to determine how to correlate it back to the master ArrayList.
The problem with registering to be notifed with an EditText change is that you do not get back a view but instead get a TextWatcher and I have no way to correlate back to the parent view or ArrayList row.
What is the technique that you need to use in this circumstance?

You can use onEditorAction on your EditText in your ArrayAdapter:
mEditText.setOnEditorActionListener(new OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
// Parse parent tree to find position of view
int position = 0;
View v = null;
while (view != v && position < mListView.getChildCount())
v = mListView.getChildAt(position++);
// do something
something(position);
// do not consume the action
return false;
}
});
Note that using this method, you are going to trigger an event only when user press "ok", "enter", "done", etc. on the keyboard.