ListView04

color.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="background">#ffff0000</color>
</resources>

DemoView04.java

package jp.ne.hyoromo.android.DemoView04;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

/**
 * シンプルListView04<br>
 * ListViewの追加と削除ができる。
 * 
 * @author hyoromo
 */
public class DemoView04 extends Activity implements OnClickListener {

    private static ListView mListView;
    private static Context mContext;
    private static AdapterEx mAdapter;
    private static int mCount;

    // アダプター設定リスト
    private String[] mData = { "hoge01", "hoge02", "hoge03", "hoge04", "hoge05", "hoge06", "hoge07", "hoge08",
            "hoge09", "hoge10", "hoge11", "hoge12", "hoge13", "hoge14", "hoge15", "hoge16", "hoge17", "hoge18",
            "hoge19" };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mContext = getApplicationContext();

        // ボタンにリスナー設定
        Button btn01 = (Button) findViewById(R.id.Button01);
        btn01.setOnClickListener(this);
        Button btn02 = (Button) findViewById(R.id.Button02);
        btn02.setOnClickListener(this);

        // 独自アダプターの作成
        mAdapter = new AdapterEx();

        // リストビューの作成＆アダプター設定
        mListView = (ListView) findViewById(R.id.list);
        mListView.setAdapter(mAdapter);

        // リストに追加していく
        ListData listData = new ListData();
        for (mCount = 0; mCount < mData.length / 2; mCount++) {
            listData = new ListData();
            listData.text = mData[mCount];
            listData.icon = R.drawable.icon;
            mAdapter.add(listData);
        }
    }

    /**
     * ArrayAdapterを拡張したクラス。
     */
    private class AdapterEx extends ArrayAdapter<ListData> {
        private final LayoutInflater mInflater;

        public AdapterEx() {
            super(mContext, 0);
            mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }

        // 画面に表示される毎に呼び出される
        @Override
        final public View getView(int position, View convertView, ViewGroup parent) {
            ListStorage listStorage;
            View row = convertView;

            if (row == null) {
                row = mInflater.inflate(R.layout.row, parent, false);
                listStorage = new ListStorage();
                listStorage.image = (ImageView) row.findViewById(R.id.ImageView01);
                listStorage.text = (TextView) row.findViewById(R.id.TextView01);
                row.setTag(listStorage);
            } else {
                listStorage = (ListStorage) convertView.getTag();
            }

            ListData listData = getItem(position);
            listStorage.image.setImageResource(listData.icon);
            listStorage.text.setText(listData.text);

            return row;
        }

        private class ListStorage {
            ImageView image;
            TextView text;
        }
    }

    /**
     * Listの中身
     */
    public final class ListData {
        public String text;
        public int icon;
    }

    @Override
    public void onClick(View v) {
        ListData data;

        switch (v.getId()) {
        case R.id.Button01:
            // 追加
            data = new ListData();
            data.icon = R.drawable.icon;
            data.text = mData[mCount++];
            mAdapter.add(data);
            break;
        case R.id.Button02:
            // 削除
            data = mAdapter.getItem(--mCount);
            mAdapter.remove(data);
            break;
        }
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">
    <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:keepScreenOn="true"
        android:layout_weight="1">
    </ListView>
    <LinearLayout
        android:background="@color/background"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="4">
        <Button
            android:id="@+id/Button01"
            android:text="追加"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:layout_gravity="center_vertical" >
        </Button>
        <Button
            android:id="@+id/Button02"
            android:text="削除"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:layout_gravity="center_vertical" >
        </Button>
    </LinearLayout>
</LinearLayout>