I have an Android Spinner
and I'd like to get a callback when the user selects something from its popup dialog. It seems like setOnItemClickListener()
or setOnItemSelectedListener()
would be the right method to use, but neither get invoked when I select one of the items in the spinner.
Is there a correct way to do this?
UPDATE
Per commonsware's suggestion, I did the following, but my onItemSelected()
method is never being called:
final Spinner spinner = (Spinner) findViewById(R.id.spinner);
spinner.setAdapter( new ArrayAdapter<SettingValue>(getContext(), android.R.layo开发者_开发技巧ut.simple_list_item_1, android.R.id.text1, setting.getSettingValues() ) );
spinner.setOnItemSelectedListener( new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Log.d("BOOGA");
final SettingValue settingValue = (SettingValue)parent.getSelectedItem();
final Editor edit = getContext().getSharedPreferences( PREFS_CONTEXT_NAME, Context.MODE_PRIVATE).edit();
edit.putString(setting.name(), settingValue.name());
edit.commit();
}
public void onNothingSelected(AdapterView<?> parent) {
// do nothing
}
});
Use setOnItemSelectedListener()
. Here is one of my book examples:
/***
Copyright (c) 2008-2009 CommonsWare, LLC
Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the License. You may obtain
a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package com.commonsware.android.selection;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
public class SpinnerDemo extends Activity
implements AdapterView.OnItemSelectedListener {
TextView selection;
String[] items={"lorem", "ipsum", "dolor", "sit", "amet",
"consectetuer", "adipiscing", "elit", "morbi", "vel",
"ligula", "vitae", "arcu", "aliquet", "mollis",
"etiam", "vel", "erat", "placerat", "ante",
"porttitor", "sodales", "pellentesque", "augue", "purus"};
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
selection=(TextView)findViewById(R.id.selection);
Spinner spin=(Spinner)findViewById(R.id.spinner);
spin.setOnItemSelectedListener(this);
ArrayAdapter<String> aa=new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, items);
aa.setDropDownViewResource(
android.R.layout.simple_spinner_dropdown_item);
spin.setAdapter(aa);
}
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
selection.setText(items[position]);
}
public void onNothingSelected(AdapterView<?> parent) {
selection.setText("");
}
}
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