最近开发的app中要用到时间轴这东西，需要实现的效果如下：
想想这个东西应该可以用listview实现吧。然后最近就模拟着去写了：
首先写 listview的item的布局:
listview_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:orientation="vertical"
android:paddingRight="20dp" >
<View
android:id="@+id/view_0"
android:layout_width="1dp"
android:layout_height="25dp"
android:layout_below="@+id/layout_1"
android:layout_marginLeft="71dp"
android:background="#A6A6A6" />
<View
android:id="@+id/view_1"
android:layout_width="1dp"
android:layout_height="25dp"
android:layout_below="@+id/layout_2"
android:layout_marginLeft="71dp"
android:background="#A6A6A6" />
<TextView
android:id="@+id/show_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/view_1"
android:layout_marginLeft="30dp"
android:text="测试数据"
android:textSize="12dp" />
<ImageView
android:id="@+id/image"
android:layout_width="15dp"
android:layout_height="15dp"
android:layout_below="@+id/view_1"
android:layout_marginLeft="65dp"
android:src="@drawable/timeline_green" />
<View
android:id="@+id/view_2"
android:layout_width="1dp"
android:layout_height="100dp"
android:layout_below="@+id/image"
android:layout_marginLeft="71dp"
android:background="#A6A6A6" />
<RelativeLayout
android:id="@+id/relative"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/image"
android:layout_marginTop="-20dp"
android:layout_toRightOf="@+id/image"
android:background="@drawable/timeline_content"
android:padding="10dp" >
<ImageView
android:id="@+id/image_1"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="5dp"
android:src="@drawable/bg_green_circle_smic" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:ellipsize="end"
android:maxEms="7"
android:paddingLeft="5dp"
android:singleLine="true"
android:text="测试数据"
android:textSize="12sp" />
</RelativeLayout>
</RelativeLayout>TimelineAdapter.java
package com.example.timelinetext.test;
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 Context context;
private List<Map<String, Object>> list;
private LayoutInflater inflater;
public TimelineAdapter(Context context, List<Map<String, Object>> list) {
super();
this.context = 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) {
inflater = LayoutInflater.from(parent.getContext());
convertView = inflater.inflate(R.layout.listview_item, null);
viewHolder = new ViewHolder();
viewHolder.title = (TextView) convertView.findViewById(R.id.title);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
String titleStr = list.get(position).get("title").toString();
viewHolder.title.setText(titleStr);
return convertView;
}
static class ViewHolder {
public TextView year;
public TextView month;
public TextView title;
}
}
最后使用：
MainActivity.java
package com.example.timelinetext.test;
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<String> data ;
private TimelineAdapter timelineAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listview);
listView = (ListView) this.findViewById(R.id.listview);
listView.setDividerHeight(0);
timelineAdapter = new TimelineAdapter(this, getData());
listView.setAdapter(timelineAdapter);
}
private List<Map<String, Object>> getData() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("title", "这是第1行测试数据");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "这是第2行测试数据");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "这是第3行测试数据");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "这是第4行测试数据");
list.add(map);
return list;
}
}
所以模拟着去写一个时间轴，并不是什么复杂的事情，不要被UI设计的图片吓到，其实他就是一个普通的listview而已。
android项目解刨之时间轴,布布扣,bubuko.com
原文地址：http://blog.csdn.net/caiwenfeng_for_23/article/details/38279317
