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POPopulate Spinner dynamically in android from edit text
 

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    <p>I have one spinner in which few values are there from strings.xml and I want to populate that spinner dynamically from edit text using onclick event of Button but somehow it's not working and I am getting Force Close everytime. Any help will be appreciated.</p> <pre><code>package com.example.expense; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.Spinner; public class Expense3 extends Activity { //private TextView t1; private Spinner spinner; private EditText Text; private ArrayAdapter&lt;CharSequence&gt; adapter; private Button addButton; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Text = (EditText)findViewById(R.id.widget4); addButton = (Button)findViewById(R.id.add_new); spinner = (Spinner) findViewById(R.id.hhj); adapter = ArrayAdapter.createFromResource( this, R.array.planets_array, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); this.addButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { addNewSpinnerItem(); } }); } protected void addNewSpinnerItem() { // TODO Auto-generated method stub CharSequence textHolder = "" + Text.getText().toString(); adapter.add(textHolder); } } </code></pre> <p>Logcat error:-</p> <pre><code>05-14 01:07:19.934: ERROR/AndroidRuntime(802): FATAL EXCEPTION: main 05-14 01:07:19.934: ERROR/AndroidRuntime(802): java.lang.UnsupportedOperationException 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at java.util.AbstractList.add(AbstractList.java:411) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at java.util.AbstractList.add(AbstractList.java:432) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.widget.ArrayAdapter.add(ArrayAdapter.java:178) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at com.example.expense.Expense3.addNewSpinnerItem(Expense3.java:50) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at com.example.expense.Expense3$1.onClick(Expense3.java:40) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.view.View.performClick(View.java:2408) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.view.View$PerformClick.run(View.java:8816) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.os.Handler.handleCallback(Handler.java:587) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.os.Handler.dispatchMessage(Handler.java:92) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.os.Looper.loop(Looper.java:123) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at android.app.ActivityThread.main(ActivityThread.java:4627) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at java.lang.reflect.Method.invokeNative(Native Method) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at java.lang.reflect.Method.invoke(Method.java:521) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 05-14 01:07:19.934: ERROR/AndroidRuntime(802): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. COPost your logcat to show what's causing the force close.
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    2. CO@MisterSquonk I have edited the question by adding Logcat error..!!
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    3. COSorry, I can't work out what the problem is. Perhaps try changing adapter to ArrayAdapter<String> and also make textHolder in the addNewSpinnerItem() method a String also.
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