how to set selection on spinner based on ID, not index or position

Question

I have spinner, that containing value and ID , such as below :

ID      message
---     ----
100     Elephant
120     Lion
125     Cat
153     Dog
165     Bear

this is the way for showing only value on my spinner :

    public class Message {
private Int id;
private String message;
public Int getId() {
    return id;
}
public void setId(Int id) {
    this.id = id;
}
public String getMessage() {
    return message;
}
public void setMessage(String message) {
    this.message = message;
}

 @Override
 public String toString() {          
     return  message;
 }

this is how I passing Message into my adapter :

 protected List<Message> messages = null;
ArrayAdapter <Message> arrayadapter = new ArrayAdapter<Message>( activity,android.R.layout.simple_spinner_item,messages);               
                    arrayadapter.setDropDownViewResource(R.layout.textview);

spinner1.setAdapter(arrayadapter);

this is how i get ID from selected spinner :

    spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        public void onItemSelected(AdapterView<?> parent, View view,
                int pos, long id) {
            Message mSelected = (Message) parent.getItemAtPosition(pos);
            Log.i("Id:", mSelected.getId());

        }
}

the problem is when I tried to set my spinner based on ID such as ID: 165, not from value or index, I tried to this method :

ArrayAdapter myAdap = (ArrayAdapter) spinner1.getAdapter();
        int spinnerPosition = myAdap.getPosition(message.getID());
        spinner1.setSelection(Message.getID());

but it return error, so my question, how to set selection on spinner based on their ID?

i think you should check [this link](http://stackoverflow.com/questions/2390102/how-to-set-selected-item-of-spinner-by-value-not-by-position) once. — Kunu, Mar 12 '14 at 07:21

Karthick pop · Answer 1 · 2014-03-12T07:29:28.747

0

use this,

 spinner2.setSelection(getIndex(spinner2, Message.getID()));
        spinner2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {

                String CandidateNos = spinner2.getSelectedItem().toString();
                System.out.println("Spinner 2:"+CandidateNos);


            }
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });



 private int getIndex(Spinner spinner, int myString)
 {
  int index = 0;

  for (int i=0;i<spinner.getCount();i++){
   if (Integer.parseInt(spinner.getItemAtPosition(i).toString())==myString){
    index = i;
    i=spinner.getCount();//will stop the loop, kind of break, by making condition false
   }
  }
  return index;
 }

edited Mar 12 '14 at 07:29

answered Mar 12 '14 at 07:18

Karthick pop

616
3
16

Message.getID()) is Int not String, so I don't see where i can select my spinner based on ID that i wanted – Menma Mar 12 '14 at 07:23
Try now changed into Int – Karthick pop Mar 12 '14 at 07:30
i got error, invalid Integer, for your information, the value from my spinner is shown, but the ID isn't shown in my spinner – Menma Mar 12 '14 at 08:09
use a real break – Luiz Felipe Jan 11 '18 at 20:24

score 0 · Accepted Answer · answered Mar 12 '14 at 13:09

oke I had to do the same thing what i did is made an extra int called SpinnerPosition and added that to my model (like your Message class)

then did something like this:

 spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    public void onItemSelected(AdapterView<?> parent, View view,
            int pos, long id) {
        Message mSelected = mSelected.setSpinnerPosition(pos);
        Log.i("Id:", mSelected.getId());

    }
}

so now you can do something like (if you get the id from somewhere)

ArrayAdapter myAdap = (ArrayAdapter) spinner1.getAdapter();
         if (Message.getID() == id) {
        previousSelected = Message.getSpinnerPosition();
        int spinnerPosition = myAdap.previousSelected;
        spinner1.setSelection(spinnerPosition);
}

i quickly wrote the code so it probably is going to have some mistakes but I hope get get the idea behind it

it's an int since Message.getID is an int. but the id is something you pass from somewhere. The basic idea is you store the position in the spinner of a certain message with a certain id in your message object as well. So now you can look up a message by id and then get the position in the spinner out of the same object. I hope this is clear? — kicked11, Mar 13 '14 at 06:22

score 0 · Answer 3 · answered Mar 01 '19 at 20:16

It's easy if you use the _id field. The below code takes the value from the _id field in a Spinner Cursor and outputs the position of that field in the curser (e.g. row number)

//in onCreate or wherever...  iID = your chosen ID.  myOrder = the position to set the spinner
 Spinner mySpinner =(Spinner)findViewById(R.id.someSpinner);
 int iID = 5;  //find the index for the value #5 in your cursor
 int myOrder = getSpinnerIndex(mySpinner,iID);
 mySpinner.setSelection(myOrder);


 //function we are calling from above code.  put it elsewhere in your class.
    private int getSpinnerIndex(Spinner spinner, int mySetId)
    {
        int index = 0;
        for (int i=0;i<spinner.getCount();i++){
            if (spinner.getItemIdAtPosition(i)==mySetId){
                index = i;
                i=spinner.getCount();
            }
        }
        return index;
    }

how to set selection on spinner based on ID, not index or position

3 Answers3