activity_ui3.xml
<?xml version="1.0" encoding="utf-8"?> <ListView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/lv_1" android:divider="#0ff" android:dividerHeight="2dp"> </ListView>
UIActivity.java
package com.hanqi.test5; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; import java.util.ArrayList; import java.util.List; public class UIActivity3 extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_ui3); ListView lv_1 = (ListView)findViewById(R.id.lv_1); //设置ListView的Adapter //准备数据 //String[] str_1 = {"A","B","C","D","E","F","G","H","I","J","K","L","M"}; List<String> list_1 = new ArrayList<String>(); list_1.add("A"); list_1.add("B"); list_1.add("C"); list_1.add("D"); list_1.add("E"); list_1.add("F"); list_1.add("D"); list_1.add("H"); //构造适配器 ArrayAdapter aa_1 = new ArrayAdapter(this,R.layout.layout_array,list_1); //实例化 //设置适配器 lv_1.setAdapter(aa_1); lv_1.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { String str = parent.getItemAtPosition(position).toString(); Toast.makeText(UIActivity3.this, "position = "+position + "id = " + id, Toast.LENGTH_SHORT).show(); } }); } }
效果图:
时间: 2024-10-15 03:09:58