Android(安卓)ListView

1）效果图如下
2）关键代码如下
package com.example.androidtest;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.Toast;import android.view.*;public class MainActivity extends Activity {private ListView listView1=null;private ArrayAdapter<String> adapter=null;private String[] cityStrings=new String[]{"北京","上海","广州","深圳","苏州","杭州","重庆","成都","南京","武汉","扬州","无锡","常州","南通","嘉兴","绍兴","宁波","湖州","舟山","金华","丽水","雅安","乐山","绵羊","德阳"};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);listView1=(ListView)findViewById(R.id.listView1);adapter=new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, cityStrings);listView1.setAdapter(adapter);listView1.setOnItemClickListener(new ListView.OnItemClickListener(){public void onItemClick(AdapterView<?> parent,View view,int position,long arg3) {String msgString=parent.getItemAtPosition(position).toString();showToast(msgString);}});}private void showToast(CharSequence msg) {Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}
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