Develop Reference

Spinner Scroll Selected Value

RecyclerView not saving Spinner values.
I have tried available examples all on stackoverflow, I could not find a working solution.
Please find my code of my RecyclerView Below:
ArrayAdapter<CharSequence> countryAdapter = ArrayAdapter.createFromResource(context, R.array.spinnerlist, android.R.layout.simple_spinner_item);
countryAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
valueselected.setAdapter(countryAdapter);
valueselected.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
valueselected.setSelection(i, true);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
valueselected.setAdapter(countryAdapter);
valueselected.getSelectedItemPosition();
Once scrolled, the selected value of the spinner needs to remain.

remove the selected item from the spinner

I am newbie i want to remove the selected item from the spinner and also add the new item to the spinner.How can i do that.What i am trying is
adapter = ArrayAdapter.createFromResource(this,R.array.slot , android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
slotTime.setAdapter(adapter);
slotTime.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
selectedTime = adapterView.getSelectedItem().toString();
adapter.remove((String) slotTime.getSelectedItem());
adapter.notifyDataSetChanged();
}
I got the error like this....
java.lang.UnsupportedOperationException
Anyone kindly help me to overcome this problem

When you pass an array in the ArrayAdapter class it converts the array into an AbstractList. This is an implementation of the List interface where elements cannot be added nor removed, i.e, immutable. What you should do is pass in an ArrayList by converting the array to a list. Arrays.asList method should do the trick.

your data is immutable (R.array.slot)
So you can modify it
You need to store data in List<String>, pass it to ArrayAdapter. Now you can modify data by modify List<String>

used below code for remove spinner value and notify.
here in strings as List.
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
strings.remove(arrstrings.indexOf(spinner.getSelectedItem()));
// spinner.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});

Cannot get current spinner position with setOnItemSelectedListener

I am trying to retrieve the spinner's selected position. The values inside the spinner are of type String and I am using setOnItemSelectedListener to change a class String variable to the one that has been selected and use it later on:
spinner = (MaterialBetterSpinner) myToolbar.findViewById(R.id.spinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,socialMediaOptions);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
socialMedia = parent.getItemAtPosition(position).toString();
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
private void sendPost(){
Log.v(TAG, socialMedia);
}
The problem is that the variable does not change when an item is selected, it seems like onItemSelected is not being called when there is a change in the spinner selection

See this thread:
https://github.com/Lesilva/BetterSpinner/issues/42
There said that BetterSpinner extends EditText, that's why onItemSelectedListener is not being called. You should use TextChangedListener instead.

Hope your socialMediaOptions are string array like this
socialMediaOptions={"FB","TWIT","IN"}
then
// Specify the layout to use when the list of choices appears
add this line
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
socialMedia = socialMediaOptions[position];
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});

android:opening new intent in spinner view

I am making an app in which i have to use spinner view to show some items and i want on click of item it should go to that page. i want when i clicke on spanish i should go to spanish pageMy code is as follows.
System.out.println("test1");
Spinner spinner = (Spinner) findViewById(R.id.spinner);
System.out.println("test2");
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.models, android.R.layout.simple_spinner_item);
System.out.println("test3");
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
System.out.println("test3");
spinner.setAdapter(adapter);
System.out.println("test4");
spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
}
public class MyOnItemSelectedListener implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> parent,
View view, int pos, long id) {
}
public void onNothingSelected(AdapterView parent) {
// Do nothing.
}
}

You have to write intent in your onItemSelected method for page/activity which you want to open.
and set position for that.
#Override
public void onItemSelected(AdapterView<?> adaptername, View view,int position, long id)
{
if(position==0)
{
// write the intent for page which you want to open
}
if(position==1)
{
//
}
.
.
.
and same
}

Tips for relating spinners

I have a need to add 3 related spinners where the selected content in the first affects what is displayed in the second and then what is selected in the second affects the content in the third. Has anyone already faced this problem and how did you over come it?
I was thinking of maintaining a number of arrays in the resources which are numbered and then loaded into the adapter based on the choice selected in the previous spinner. Is this a good way?
Thanks,
m

I would have done this with something like that:
spinner1.setOnItemSelectedListener(new OnItemSelectedListener()
{
#Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id)
{
SpinnerAdapter adapter = ...create or load the second adapter based on selected item...
spinner2.setAdapter (adapter);
spinner3.setAdapter (..create empty adapter...);
}
#Override
public void onNothingSelected(AdapterView<?> parentView)
{
spinner2.setAdapter (..create empty adapter...);
spinner3.setAdapter (..create empty adapter...);
}
});
spinner2.setOnItemSelectedListener(new OnItemSelectedListener()
{
#Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id)
{
SpinnerAdapter adapter = ...create or load the third adapter based on selected item...
spinner3.setAdapter (adapter);
}
#Override
public void onNothingSelected(AdapterView<?> parentView)
{
spinner3.setAdapter (..create empty adapter...);
}
});