在activity中定义一个RecycleView,主要在adapter和item布局实现类似时间轴效果
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定义item布局
<?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"> <RelativeLayout android:id="@+id/rlTimeline" android:layout_width="32dp" android:layout_height="match_parent"> <TextView android:id="@+id/tvTopLine" android:layout_width="0.5dp" android:layout_height="12dp" android:layout_centerHorizontal="true" android:background="#999" /> <TextView android:id="@+id/tvDot" android:layout_width="5dp" android:layout_height="5dp" android:layout_below="@id/tvTopLine" android:layout_centerHorizontal="true" android:background="@drawable/timelline_dot_normal" /> <TextView android:layout_width="0.5dp" android:layout_height="match_parent" android:layout_below="@id/tvDot" android:layout_centerHorizontal="true" android:background="#999" /> </RelativeLayout> <RelativeLayout android:id="@+id/rlCenter" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="6dp" android:paddingRight="10dp" android:paddingTop="6dp"> <TextView android:id="@+id/tvAcceptTime" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="2014/06/24 20:55:28" android:textColor="#999" android:textSize="12sp" /> <TextView android:id="@+id/tvAcceptStation" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/tvAcceptTime" android:layout_marginTop="5dp" android:text="快件在 深圳 ,准备送往下一站 深圳集散中心 [深圳市]" android:textColor="#999" android:textSize="12sp" /> </RelativeLayout> </LinearLayout> -
定义实体类数据
package com.example.a070.demo.bean; /** * Created by 070 on 2017/7/4. */ public class Trace { /** 时间 */ private String acceptTime; /** 描述 */ private String acceptStation; public Trace() { } public Trace(String acceptTime, String acceptStation) { this.acceptTime = acceptTime; this.acceptStation = acceptStation; } public String getAcceptTime() { return acceptTime; } public void setAcceptTime(String acceptTime) { this.acceptTime = acceptTime; } public String getAcceptStation() { return acceptStation; } public void setAcceptStation(String acceptStation) { this.acceptStation = acceptStation; } } -
定义圆点
timelline_dot_first.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size
android:width="10dp"
android:height="10dp" />
<solid android:color="#555555" />
</shape>
定义timelline_dot_normal.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size
android:width="10dp"
android:height="10dp" />
<solid android:color="#999999" />
</shape>
- 定义adapter
public class TraceListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private LayoutInflater inflater;
private List<Trace> traceList = new ArrayList<>(1);
private static final int TYPE_TOP = 0x0000;
private static final int TYPE_NORMAL = 0x0001;
public TraceListAdapter(Context context, List<Trace> traceList) {
inflater = LayoutInflater.from(context);
this.traceList = traceList;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
return new ViewHolder(inflater.inflate(R.layout.item_timeline, parent, false));
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
ViewHolder itemHolder = (ViewHolder) holder;
if (getItemViewType(position) == TYPE_TOP) {
// 第一行头的竖线不显示
itemHolder.tvTopLine.setVisibility(View.INVISIBLE);
// 字体颜色加深
itemHolder.tvAcceptTime.setTextColor(0xff555555);
itemHolder.tvAcceptStation.setTextColor(0xff555555);
itemHolder.tvDot.setBackgroundResource(R.drawable.timelline_dot_first);
} else if (getItemViewType(position) == TYPE_NORMAL) {
itemHolder.tvTopLine.setVisibility(View.VISIBLE);
itemHolder.tvAcceptTime.setTextColor(0xff999999);
itemHolder.tvAcceptStation.setTextColor(0xff999999);
itemHolder.tvDot.setBackgroundResource(R.drawable.timelline_dot_normal);
}
itemHolder.bindHolder(traceList.get(position));
}
@Override
public int getItemViewType(int position) {
if (position == 0) {
return TYPE_TOP;
}
return TYPE_NORMAL;
}
@Override
public int getItemCount() {
return traceList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private TextView tvAcceptTime, tvAcceptStation;
private TextView tvTopLine, tvDot;
public ViewHolder(View itemView) {
super(itemView);
tvAcceptTime = (TextView) itemView.findViewById(R.id.tvAcceptTime);
tvAcceptStation = (TextView) itemView.findViewById(R.id.tvAcceptStation);
tvTopLine = (TextView) itemView.findViewById(R.id.tvTopLine);
tvDot = (TextView) itemView.findViewById(R.id.tvDot);
}
public void bindHolder(Trace trace) {
tvAcceptTime.setText(trace.getAcceptTime());
tvAcceptStation.setText(trace.getAcceptStation());
}
}
}
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java代码实现
public class TimeLineActivity extends AppCompatActivity { private List<Trace> traceList = new ArrayList<>(10); private TraceListAdapter adapter; private RecyclerView rvTrace; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_time_line); rvTrace = (RecyclerView) findViewById(R.id.rvTrace); initData(); } private void initData() { // 模拟一些假的数据 traceList.add(new Trace("2016-05-25 17:48:00", "[沈阳市] [沈阳和平五部]的派件已签收 感谢使用中通快递,期待再次为您服务!")); traceList.add(new Trace("2016-05-25 14:13:00", "[沈阳市] [沈阳和平五部]的东北大学代理点正在派件 电话:18040xxxxxx 请保持电话畅通、耐心等待")); traceList.add(new Trace("2016-05-25 13:01:04", "[沈阳市] 快件到达 [沈阳和平五部]")); traceList.add(new Trace("2016-05-25 12:19:47", "[沈阳市] 快件离开 [沈阳中转]已发往[沈阳和平五部]")); traceList.add(new Trace("2016-05-25 11:12:44", "[沈阳市] 快件到达 [沈阳中转]")); traceList.add(new Trace("2016-05-24 03:12:12", "[嘉兴市] 快件离开 [杭州中转部]已发往[沈阳中转]")); traceList.add(new Trace("2016-05-23 21:06:46", "[杭州市] 快件到达 [杭州汽运部]")); traceList.add(new Trace("2016-05-23 18:59:41", "[杭州市] 快件离开 [杭州乔司区]已发往[沈阳]")); traceList.add(new Trace("2016-05-23 18:35:32", "[杭州市] [杭州乔司区]的市场部已收件 电话:18358xxxxxx")); adapter = new TraceListAdapter(this, traceList); rvTrace.setLayoutManager(new LinearLayoutManager(this)); rvTrace.setAdapter(adapter); } }
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