Android带删除按钮的ListView

 

 

 

import java.util.ArrayList;
import com.ql.adapter.DeletableAdapter;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
 
public class Test_4_Activity extends Activity {
    private DeletableAdapter adapter;
    private ArrayList<String> text;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.test4);
 
        ListView list_view = (ListView) findViewById(R.id.list_view);
 
        text = new ArrayList<String>();
        text.add("111");
        text.add("222");
        text.add("333");
        text.add("444");
        // 初始化数据结束
        adapter = new DeletableAdapter(this, text);
        list_view.setAdapter(adapter);
        // list_view.setSelector(R.drawable.list_select_color);
 
        Button button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                text.add("10000");
                adapter.notifyDataSetChanged();
            }
        });
    }
}

 

 

import java.util.ArrayList;
 
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
 
import com.ql.activity.R;
 
public class DeletableAdapter extends BaseAdapter {
    private Context context;
    private ArrayList<String> text;
 
    public DeletableAdapter(Context context, ArrayList<String> text) {
        this.context = context;
        this.text = text;
    }
 
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return text.size();
    }
 
    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return text.get(position);
    }
 
    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }
 
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        final int index = position;
        View view = convertView;
        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = inflater.inflate(R.layout.row_simple_list_item_2, null);
        }
        final TextView textView = (TextView) view
                .findViewById(R.id.simple_item_1);
        textView.setText(text.get(position));
        final ImageView imageView = (ImageView) view
                .findViewById(R.id.simple_item_2);
        imageView.setBackgroundResource(android.R.drawable.ic_delete);
        imageView.setTag(position);
        imageView.setOnClickListener(new OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                text.remove(index);
                notifyDataSetChanged();
                Toast.makeText(context, textView.getText().toString(),
                        Toast.LENGTH_SHORT).show();
            }
        });
        return view;
    }
}

 

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    <ImageView
        android:id="@+id/simple_item_2"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_alignParentRight="true"
        android:focusable="false" />
    <TextView
        android:id="@+id/simple_item_1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true" />
</RelativeLayout>

 

这里要实现点击ListView里面的一个控件而不是选中一行。

最好重写Adapter，而不要使用其自带的SimpleAdapter,否则该子控件的事件就不那么好处理了！