<?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="horizontal"        >       <LinearLayout         android:layout_width="fill_parent"        android:layout_height="fill_parent"           android:orientation="vertical"        >       <ListView         android:id="@+id/listview"            android:layout_width="fill_parent"        android:layout_height="wrap_content"       />       <Button         android:id="@+id/add"            android:layout_width="wrap_content"        android:layout_height="wrap_content"         android:text="添加"        />       </LinearLayout>   </LinearLayout>

 <?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="wrap_content"       android:orientation="horizontal"       android:background="#000000"       android:padding="20dp"       >                <EditText       android:id="@+id/edit"       android:layout_width="200dp"       android:layout_height="wrap_content"       />       <Button       android:id="@+id/del"       android:layout_width="wrap_content"       android:layout_height="wrap_content"          android:text="删除"       />            </LinearLayout>

 package com.yyy.testandroid;       import java.util.ArrayList;       import android.app.Activity;  import android.content.Context;  import android.os.Bundle;  import android.view.LayoutInflater;  import android.view.View;  import android.view.View.OnClickListener;  import android.view.View.OnFocusChangeListener;  import android.view.ViewGroup;   import android.widget.BaseAdapter;   import android.widget.Button;   import android.widget.EditText;   import android.widget.ListView;   import android.widget.TextView;        public class TestAndroidActivity extends Activity {       /** Called when the activity is first created. */                private Button button,add;       private TextView text;       private ListView listview;       public MyAdapter adapter;       @Override       public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.main);           listview = (ListView) findViewById(R.id.listview);           add = (Button) findViewById(R.id.add);           adapter = new MyAdapter(this);           listview.setAdapter(adapter);                        add.setOnClickListener(new OnClickListener() {               @Override               public void onClick(View arg0) {                   // TODO Auto-generated method stub                   adapter.arr.add("");                   adapter.notifyDataSetChanged();               }           });       }         private class MyAdapter extends BaseAdapter {                private Context context;           private LayoutInflater inflater;           public ArrayList<String> arr;           public MyAdapter(Context context) {               super();               this.context = context;               inflater = LayoutInflater.from(context);               arr = new ArrayList<String>();               for(int i=0;i<3;i++){    //listview初始化3个子项                   arr.add("");               }           }           @Override           public int getCount() {               // TODO Auto-generated method stub               return arr.size();           }           @Override           public Object getItem(int arg0) {               // TODO Auto-generated method stub               return arg0;           }           @Override           public long getItemId(int arg0) {               // TODO Auto-generated method stub               return arg0;           }           @Override           public View getView(final int position, View view, ViewGroup arg2) {               // TODO Auto-generated method stub               if(view == null){                   view = inflater.inflate(R.layout.list_item, null);               }               final EditText edit = (EditText) view.findViewById(R.id.edit);               edit.setText(arr.get(position));    //在重构adapter的时候不至于数据错乱               Button del = (Button) view.findViewById(R.id.del);               edit.setOnFocusChangeListener(new OnFocusChangeListener() {                   @Override                   public void onFocusChange(View v, boolean hasFocus) {                       // TODO Auto-generated method stub                       if(arr.size()>0){                           arr.set(position, edit.getText().toString());                       }                   }               });               del.setOnClickListener(new OnClickListener() {                   @Override                   public void onClick(View arg0) {                       // TODO Auto-generated method stub                       //从集合中删除所删除项的EditText的内容                       arr.remove(position);                       adapter.notifyDataSetChanged();                   }               });               return view;           }       }   }