How to get spinner on android without xml

Question

In my app I need a spinner on a Button click with dynamically loaded values. My need is in the XML file I should not use spinner control. I have to show the spinner without xml on a button click:

i use the following code but i did not get any error and spinner. i know i miss some lines. please Help me.

my code:

showSpinner is a Button control.

The MyOnItemSelectedListene is outside of the onCreate(..) method.

import java.util.Calendar;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.Toast;

public class DynamicSpinnerActivity extends Activity {
    /** Called when the activity is first created. */
    Button b;
    LinearLayout linearLayout1;
    String years[] = new String[12];
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        b = (Button) findViewById(R.id.button1);
        linearLayout1 = (LinearLayout) findViewById(R.id.linearLayout1);
        b.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//              Toast.makeText(DynamicSpinnerActivity.this, "sdfsdf", Toast.LENGTH_SHORT).show();
//              Log.e("tag", "msg");
                Spinner spinnner = new Spinner(DynamicSpinnerActivity.this);
                int thisYear = Calendar.getInstance().get(Calendar.YEAR);
                for (int i = 0; i < 12; i++) {
                    years[i] = Integer.toString(thisYear);
                    thisYear = thisYear + 1;
                }
                Log.e("tag", "msg"+years.length);
                ArrayAdapter<String> expYearAdapter = new ArrayAdapter<String>(DynamicSpinnerActivity.this, android.R.layout.simple_spinner_item, years);
                expYearAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                spinnner.setAdapter(expYearAdapter);
//              linearLayout1.addView(spinnner);
                spinnner.performClick();
                spinnner.setOnItemSelectedListener(new MyOnItemSelectedListener());

            }
        });
    }

    public class MyOnItemSelectedListener implements OnItemSelectedListener {

        public void onItemSelected(AdapterView<?> parent,View view, int pos, long id) {
             Toast.makeText(parent.getContext(), "The planet is " +parent.getItemAtPosition(pos).toString(), Toast.LENGTH_LONG).show();
             Log.e("values", parent.getItemAtPosition(pos).toString());
        }

        public void onNothingSelected(AdapterView parent) {
          // Do nothing.
        }
    }

}

http://stackoverflow.com/questions/2784081/android-create-spinner-programmatically-from-array — Samir Mangroliya, Feb 16 '12 at 10:50

score 0 · Answer 1 · answered Feb 16 '12 at 10:50

0

you have created spinner its okay, but you also do need to add this layout to your contents on screen, like if you have llHolder to hold spinner, add spinner to

llHolder.addView(spinner);

answered Feb 16 '12 at 10:50

jeet

29,001
6
52
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can you explain this answer? what is llHolder. – M.A.Murali Feb 16 '12 at 10:59
yes thanks. it show the spinner. how to do i write listener for it? – M.A.Murali Feb 16 '12 at 11:08
spinnner.setOnItemSelectedListener(new OnItemSelectedListener() {..} is never called on when i select an item from the spinner. – M.A.Murali Feb 16 '12 at 11:28
the listener not called please help me – M.A.Murali Feb 16 '12 at 11:42
import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ArrayAdapter; import android.widget.Spinner; i use those imports. – M.A.Murali Feb 16 '12 at 11:52

score 0 · Accepted Answer · answered Feb 16 '12 at 10:58

0

it can be show using spinnner.performClick();

but @jitendra sharma ' way is better

answered Feb 16 '12 at 10:58

Ajay

4,850
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thanks it show the spinner. How do i get selected text and position from the spinner. – M.A.Murali Feb 16 '12 at 11:02
look out the http://developer.android.com/resources/tutorials/views/hello-spinner.html for more info – Ajay Feb 16 '12 at 11:30
spinnner.setOnItemSelectedListener(new MyOnItemSelectedListener()); is never called. please help me – M.A.Murali Feb 16 '12 at 11:40
hey Murali edited code is also working here, please paste the full activity code here so i can check you code – Ajay Feb 16 '12 at 11:58
Is working setOnItemSelectedListener. do you add spinner in xml. – M.A.Murali Feb 16 '12 at 12:00
If you do not mine..can you send the project to murali6060@gmail.com ? please – M.A.Murali Feb 16 '12 at 12:01
have you seen my edited question there i past whole code. please correct my code. – M.A.Murali Feb 16 '12 at 12:10
yes i got the solution please remove comment from the linearLayout1.addView(spinnner); line – Ajay Feb 16 '12 at 12:17
and comment the performclick line you get the answer – Ajay Feb 16 '12 at 12:17
yes but no. i get solution by using performclick and sharma way. But i add spinner control with width="0dp" and height ="0dp". with out xml. i did not get solution. Thanks for kind help – M.A.Murali Feb 18 '12 at 10:13

score 0 · Answer 3 · answered Feb 16 '12 at 11:05

0

If you dont want to display the spinner than default make it invisible and make it visible on button click

answered Feb 16 '12 at 11:05

Hardi Shah

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How to get spinner on android without xml

3 Answers3