Question

**您好，我正在尝试从已填充的Arraylist / ArrayAdapter中检索第二个值。我是Array的新手，所以如果我错了请纠正我

Q1。我创建了Array Favorite。我认为我创建的是一个带有两组值调用的数组|值。示例Detail =“Yasmin”，Value =“8”。这是对的吗？

Q2。我已将收藏夹数组分配给mFavlist列表视图。在OnItemClick期间，我可以通过listview的位置返回标签“Yasmin”。我想做的是返回值“8”。最好的方法是什么？

如果我通过阵列和适配器**在正确的轨道上，请告诉我。

import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

public class lister extends Activity {
    /** Called when the activity is first created. */
        TextView txHomeTeam;
        protected ListView mFavlist;
        protected ArrayList<Favorite> fakeFavs = new ArrayList<Favorite>();

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


        this.txHomeTeam = (TextView)this.findViewById(R.id.title);

        fakeFavs.add(new Favorite("John", "1"));
        fakeFavs.add(new Favorite("Yasmin", "8"));
        fakeFavs.add(new Favorite("Jack", "10"));

        //this.mFavlist = (ListView) this.findViewById(R.id.list_favorites);
        this.mFavlist = (ListView) this.findViewById(R.id.list_favorites);
        initListView();

        mFavlist.setTextFilterEnabled(true);

        mFavlist.setOnItemClickListener(new OnItemClickListener() {
                        @Override
                        public void onItemClick(AdapterView arg0, View view,
                                           int position, long id) {

                                // user clicked a list item, 
    //and read the value from <Favorite>.value
                                //txHomeTeam.setText=????

                                }

        });

    }

   public void refreshFavListItems() {
            mFavlist.setAdapter(new ArrayAdapter<Favorite>(this,
                            android.R.layout.simple_list_item_1, fakeFavs));
    }

    public void initListView() {
        /* Loads the items to the ListView. */
        refreshFavListItems();

    }
protected class Favorite {
        protected String Detail;
        protected String value;

        protected Favorite(String Detail, String value) {
                this.Detail = Detail;
                this.value = value;

        }
        public String toString() {
                return Detail;
        }
}


}

Answer 1

使用position参数到达适配器中的正确位置

public void onItemClick(AdapterView arg0, View view,
                                           int position, long id) {
    Favorite selectedFav=lister.this.fakeFavs.getItem(position)
}

onListItemClick具有多个值/检索值

1 个答案: