本文实例为大家分享了android listview列表展示效果的具体代码，供大家参考，具体内容如下
1.封装一些新闻数据
2.使用listview展示出来
3.设置条目点击事件,点击后跳转浏览器查看新闻
package com.itheima74.newscustom.domain; import android.graphics.drawable.Drawable; /** * Created by My on 2016/11/8. */ public class NewsBean { public String title; public String des; public Drawable icon; public String news_url; } package com.itheima74.newscustom.utils; import android.content.Context; import com.itheima74.newscustom.R; import com.itheima74.newscustom.domain.NewsBean; import java.util.ArrayList; /** * Created by My on 2016/11/8. */ public class NewsUtils { /** * @param context 上下文环境 * @return 新闻集合 */ public static ArrayList<NewsBean> getAllNews(Context context) { ArrayList<NewsBean> arrayList = new ArrayList<>(); for (int i = 0; i < 5; i++) { NewsBean newsBean1 = new NewsBean(); newsBean1.title = "鸟瞰暴雨后的武汉 全市已转移16万人次"; newsBean1.des = "7月5-6日，武汉普降暴雨-大暴雨，中心城区、蔡甸部分地区出现特大暴雨。江夏大道汤逊湖大桥段，被湖水冲破的路障。记者贾代腾飞 陈卓摄"; newsBean1.icon = context.getResources().getDrawable(R.drawable.wuhan); newsBean1.news_url = "http://slide.news.sina.com.cn/s/slide_1_2841_101020.html#p=1"; arrayList.add(newsBean1); NewsBean newsBean2 = new NewsBean(); newsBean2.title = "安徽暴雨 三四十条鳄鱼逃至附近农田"; newsBean2.des = "因强降雨造成内涝，安徽省芜湖市芜湖县花桥镇鳄鱼湖农庄所养鳄鱼逃跑至附近农田。。据悉，溜出来的鳄鱼为散养的扬子鳄，比较温驯。初步预计有三四十条，具体数量未统计，其中最大的约1.8米长。图为网友拍摄到的农田中的鳄鱼。"; newsBean2.icon = context.getResources().getDrawable(R.drawable.eyu); newsBean2.news_url = "http://slide.news.sina.com.cn/s/slide_1_2841_101024.html#p=1"; arrayList.add(newsBean2); NewsBean newsBean3 = new NewsBean(); newsBean3.title = "暴雨过后 南京理工大学变“奇幻森林”"; newsBean3.des = "近日，持续强降雨，导致地势低洼的南京理工大学出现严重积水。这一组几张照片，南理工恍若童话世界中。网友：泡在水中的南理工，也可以倔强地刷出颜值新高度。"; newsBean3.icon = context.getResources().getDrawable(R.drawable.qihuan); newsBean3.news_url = "http://slide.news.sina.com.cn/s/slide_1_2841_101010.html#p=1"; arrayList.add(newsBean3); } return arrayList; } } package com.itheima74.newscustom.activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import com.itheima74.newscustom.R; import com.itheima74.newscustom.domain.NewsBean; import com.itheima74.newscustom.utils.NewsUtils; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { private ListView lv; private ArrayList<NewsBean> mList; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initUI(); initData(); initAdapter(); } private void initAdapter() { lv.setAdapter(new NewsAdapter()); } private void initData() { mList = NewsUtils.getAllNews(this); } private void initUI() { lv = (ListView) findViewById(R.id.lv); lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(mList.get(position).news_url)); startActivity(intent); } }); } private class NewsAdapter extends BaseAdapter { @Override public int getCount() { return mList.size(); } @Override public NewsBean getItem(int position) { return mList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { holder = new ViewHolder(); convertView = View.inflate(getApplicationContext(), R.layout.listview_item, null); holder.tv_title = (TextView) convertView.findViewById(R.id.tv_title); holder.tv_des = (TextView) convertView.findViewById(R.id.tv_des); holder.iv_icon = (ImageView) convertView.findViewById(R.id.iv_icon); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } NewsBean item = getItem(position); holder.tv_title.setText(item.title); holder.tv_des.setText(item.des); holder.iv_icon.setImageDrawable(item.icon); return convertView; } } private static class ViewHolder { TextView tv_title; TextView tv_des; ImageView iv_icon; } }
listview_item.xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:orientation="horizontal" android:padding="10dp"> <ImageView android:id="@+id/iv_icon" android:layout_width="100dp" android:layout_height="80dp" android:layout_marginEnd="10dp" android:layout_marginRight="10dp" android:src="@mipmap/ic_launcher" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:id="@+id/tv_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="3dp" android:maxLines="1" android:text="新闻标题" android:textColor="#000000" android:textSize="16sp" /> <TextView android:id="@+id/tv_des" android:layout_width="wrap_content" android:layout_height="wrap_content" android:maxLines="2" android:text="新闻内容" android:textColor="#666666" android:textSize="13sp" /> </LinearLayout> </LinearLayout>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。