android实现快递跟踪进度条

import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.widget.ListView; 
 
public class MainActivity extends Activity { 
 
 private ListView listView; 
 List data; 
 private TimelineAdapter timelineAdapter; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 
 listView = (ListView) this.findViewById(R.id.listview); 
 listView.setDividerHeight(0); 
 timelineAdapter = new TimelineAdapter(this, getData()); 
 listView.setAdapter(timelineAdapter); 
 
 } 
 
 private List> getData() { 
 List> list = new ArrayList>(); 
 
 Map map = new HashMap(); 
 map.put("time", "2015-05-20 10:15"); 
 map.put("title", "深圳龙华收件"); 
 list.add(map); 
 
 map = new HashMap(); 
 map.put("time", "2015-05-21 9:25"); 
 map.put("title", "离开深圳，发往上海"); 
 list.add(map); 
 
 map = new HashMap(); 
 map.put("time", "2015-05-22 12:55"); 
 map.put("title", "上海浦江集散中心"); 
 list.add(map); 
 
 map = new HashMap(); 
 map.put("time", "2015-05-25 9:30"); 
 map.put("title", "已收取快件"); 
 list.add(map); 
 return list; 
 } 
 
} 

import java.util.List; 
import java.util.Map; 
 
import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.TextView; 
 
public class TimelineAdapter extends BaseAdapter { 
 
 private List> list; 
 private LayoutInflater inflater; 
 
 public TimelineAdapter(Context context, List> list) { 
 super(); 
 this.inflater = LayoutInflater.from(context); 
 this.list = list; 
 } 
 
 @Override 
 public int getCount() { 
 return list.size(); 
 } 
 
 @Override 
 public Object getItem(int position) { 
 return position; 
 } 
 
 @Override 
 public long getItemId(int position) { 
 return position; 
 } 
 
 @Override 
 public View getView(int position, View convertView, ViewGroup parent) { 
 ViewHolder viewHolder = null; 
 if (cOnvertView== null) { 
  cOnvertView= inflater.inflate(R.layout.listview_item, null); 
  viewHolder = new ViewHolder(); 
  viewHolder.time = (TextView) convertView.findViewById(R.id.tv_time); 
  viewHolder.title = (TextView) convertView.findViewById(R.id.title); 
  convertView.setTag(viewHolder); 
 } else { 
  viewHolder = (ViewHolder) convertView.getTag(); 
 } 
 viewHolder.time.setText(list.get(position).get("time").toString()); 
 viewHolder.title.setText(list.get(position).get("title").toString()); 
 
 return convertView; 
 } 
 
 static class ViewHolder { 
 public TextView time; 
 public TextView title; 
 } 
} 

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