package com.example.mycustomview; import java.util.ArrayList;
import java.util.Arrays;
import java.util.List; import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast; public class MainActivity extends Activity {
 ListView listView;
 ArrayAdapter<String> adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
      
        //新建陣列
        String[] mylistdata={"Chinese","Japanese","American","Austrilian","Britisher","India","French","Chinese","Japanese","American","Austrilian","Britisher","India","French"};
        //注意：一定要將String[]轉成List，否則不能動態增加和刪除
        List list=new ArrayList<>(Arrays.asList(mylistdata));         //新增加adapter介面卡
        adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,list);         //建立ListView
        listView=new ListView(this);          //將adapter介面卡置入ListView
        listView.setAdapter(adapter);         //設定預設佈局為ListView
        setContentView(listView);
      
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
         @Override
         public void onItemClick(AdapterView parent, View view, int position, long id) {
         String item = adapter.getItem(position);
         adapter.remove(item);
         adapter.add(item+"   city");
         Toast.makeText(MainActivity.this, item.toString(), Toast.LENGTH_SHORT).show();
         }
         });     }
}