7

私は AndroidSpinnerを使用しており、ユーザーがポップアップ ダイアログから何かを選択したときにコールバックを取得したいと考えています。使用するのに適切な方法のようですsetOnItemClickListener()がsetOnItemSelectedListener()、スピナーで項目の 1 つを選択すると、どちらも呼び出されません。

これを行う正しい方法はありますか？

アップデート

コモンズウェアの提案に従って、私は次のことを行いましたが、私のonItemSelected()メソッドは決して呼び出されません:

    final Spinner spinner = (Spinner) findViewById(R.id.spinner);

    spinner.setAdapter( new ArrayAdapter<SettingValue>(getContext(), android.R.layout.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
        }

    });
4

1 に答える 1

1

を使用しsetOnItemSelectedListener()ます。これが私の本の例の1つです：

/***
    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("");
    }
}
于 2009-10-31T02:09:34.673 に答える