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PORemove Selected Spinner Item In Android
 

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  1. PORemove Selected Spinner Item In Android
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    <p>I have spinner in my Activity which is set the item from JSON data and when i select any item from spinner and set into the spinner, and i have done all this things properly.But when i want to remove selected item from spinner i got exception:</p> <blockquote> <p>E/AndroidRuntime(1022): java.lang.UnsupportedOperationException"</p> </blockquote> <p>and</p> <blockquote> <p>E/AndroidRuntime(1022):atandroid.widget.ArrayAdapter.remove(ArrayAdapter.java:212)</p> </blockquote> <p>at the code line of </p> <blockquote> <p>E/AndroidRuntime(1022):at com.spinnerdemo.SpinDemo$1.onItemSelected(SpinDemo.java:102)</p> </blockquote> <p>Here is my code:</p> <pre><code>public class SpinDemo extends Activity { private static String strUrl = "http://192.168.1.61/jyoti/android_app/all_questions.php"; private static String TAG_ID = "id"; private static String TAG_CODE = "q_prefix"; private static String TAG_CODE_ARR = "Questions"; JSONArray jsonArray = null; Spinner codeSpinner, spinner2; EditText edTextSpinnerItem; String[] items; String strEdtext; String strid , strcode ; ArrayList&lt;String&gt; codeList; public ArrayAdapter&lt;String&gt; adapter ; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); codeList = new ArrayList&lt;String&gt;(); codeSpinner = (Spinner) findViewById(R.id.spinner2); JSONParser jParser = new JSONParser(); JSONObject json = jParser.getJSONFromUrl(strUrl); try { jsonArray = json.getJSONArray(TAG_CODE_ARR); // looping through All Contacts final String[] items = new String[jsonArray.length()]; for(int i = 0; i &lt; jsonArray.length(); i++) { JSONObject c = jsonArray.getJSONObject(i); // Storing each json item in variable strid = c.getString(TAG_ID); strcode = c.getString(TAG_CODE); items[i] = c.getString(TAG_CODE); System.out.println("Hello events " + items); adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_spinner_item,items); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); codeSpinner.setAdapter(adapter); } } catch (JSONException e) { e.printStackTrace(); } codeSpinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView&lt;?&gt; arg0, View arg1, int pos, long arg3) { // TODO Auto-generated method stub String anyvariable=String.valueOf(codeSpinner.getSelectedItem()); System.out.println("anyvariable = " + anyvariable); edTextSpinnerItem=(EditText)findViewById(R.id.editText_SpinnerItem); edTextSpinnerItem.setText(anyvariable); System.out.println("edTextSpinnerItem " + edTextSpinnerItem); String t = adapter.getItem(pos); System.out.println("Get The Item Position From Adapter = " + t); adapter.remove(t); adapter.notifyDataSetChanged(); codeSpinner.setAdapter(adapter); //mySpinner.setAdapter(m_adapterForSpinner); //adapter.remove((String)codeSpinner.getSelectedItem()); //adapter.notifyDataSetChanged(); //System.out.println("Item is Removed From The Spinner Drop Dwon List"); } @Override public void onNothingSelected(AdapterView&lt;?&gt; arg0) { // TODO Auto-generated method stub } }); } } </code></pre>
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