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POCreating an on Radio button on click event to change spinner array in java
 

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  1. POCreating an on Radio button on click event to change spinner array in java
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    <p>I am a newbie to Android programming.</p> <p>I want two radio buttons that when clicked it will change the spinner array. </p> <p>I know it sounds simple. I have it all working but I am not sure how to implement the onclickchange to make this happen. I have attached the code. </p> <p>I am having an awful time trying to get my head around how to set this listener. Also, I have no errors, and spinner works, just can't get it to change arrays.</p> <p>Any guidance is greatly appreciated. Cheers,</p> <p>I attempted to create it with the listener, but it doesnt work, any advice is appreciated.</p> <p>Xml</p> <pre><code>&lt;RadioGroup android:id="@+id/radiogroup" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" &gt; &lt;RadioButton android:id="@+id/radiobutton1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checked="true" android:text="@string/radio1" /&gt; &lt;RadioButton android:id="@+id/radiobutton2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/radio2" /&gt; &lt;/RadioGroup&gt; </code></pre> <p>java</p> <pre><code> @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.canprovselect); RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radiogroup1); int checkedRadioButton = radioGroup.getCheckedRadioButtonId(); Spinner spinner = (Spinner) findViewById(R.id.spinner); ArrayAdapter&lt;CharSequence&gt; adapter = null; String radioButtonSelected = ""; switch (checkedRadioButton) { case R.id.radiobutton3 : radioButtonSelected = "radiobutton1"; adapter = ArrayAdapter.createFromResource( this, R.array.prov_array, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new OnItemSelected( )); break; case R.id.radiobutton4 : radioButtonSelected = "radiobutton2"; adapter = ArrayAdapter.createFromResource( this, R.array.prov1_array, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new OnItemSelected( )); break; } </code></pre> <p>My attempt at a listener</p> <pre><code>public class CanProvselect extends Activity { RadioButton myOption1, myOption2; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.canprovselect); myOption1 = (RadioButton)findViewById(R.id.radio_1); myOption2 = (RadioButton)findViewById(R.id.radio_2); myOption1.setOnClickListener(myOptionOnClickListener); myOption2.setOnClickListener(myOptionOnClickListener); OnClickListener myOptionOnClickListener = null; Spinner spinner = (Spinner) findViewById(R.id.spinner); ArrayAdapter&lt;CharSequence&gt; adapter = null; } RadioButton.OnClickListener myOptionOnClickListener = new RadioButton.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub //switch (checkedRadioButton) { myOption1 : radioButtonSelected = "radio_1"; adapter = ArrayAdapter.createFromResource( this, R.array.prov_array, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new OnItemSelected( )); myOption2 : radioButtonSelected = "radio_2"; adapter = ArrayAdapter.createFromResource( this, R.array.prov1_array, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new OnItemSelected( )); } } </code></pre> <p>}</p>
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