这篇文章主要为大家详细介绍了android listview实现新闻列表展示效果，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
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; } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 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; } } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 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:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 <? 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。
listview_item.xml: