RecycleView在eclipse的初体验

在sdk中找到v7包

\sdk\extras\android\support\v7\recyclerview

导入工程

Import\Android\Existing Android Code Into Workspace

将导入的recycleview作为依赖库Library

工程上右键properties,勾选is Library，Apply，ok

将recycleview\libs\android_support_v7_recycleview.jar包复制粘贴到主工程的libs文件夹下

在layout中使用<android.support.v7.widget.RecyclerView/>标签

 

MainActivity

  1 package com.jiatu.recyclerviewtest;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 import android.app.Activity;
  6 import android.content.Context;
  7 import android.content.res.TypedArray;
  8 import android.graphics.Canvas;
  9 import android.graphics.Rect;
 10 import android.graphics.drawable.Drawable;
 11 import android.os.Bundle;
 12 import android.support.v7.widget.DefaultItemAnimator;
 13 import android.support.v7.widget.LinearLayoutManager;
 14 import android.support.v7.widget.RecyclerView;
 15 import android.view.LayoutInflater;
 16 import android.view.View;
 17 import android.view.ViewGroup;
 18 import android.widget.TextView;
 19 import android.widget.Toast;
 20 
 21 public class MainActivity extends Activity {
 22     private RecyclerView recyclerView;
 23     private List<Person> list = new ArrayList<Person>();
 24     private LinearLayoutManager mLayoutManager;
 25     // private GridLayoutManager mGridLayoutManager;
 26 
 27     @Override
 28     protected void onCreate(Bundle savedInstanceState) {
 29         super.onCreate(savedInstanceState);
 30         setContentView(R.layout.activity_main);
 31         recyclerView = (RecyclerView) findViewById(R.id.recycler_view_test_rv);
 32         recyclerView.setHasFixedSize(true); // 固定item的高或者宽，提高性能
 33         recyclerView.setItemAnimator(new DefaultItemAnimator());
 34         recyclerView.addItemDecoration(new MyDecoration(this, MyDecoration.VERTICAL_LIST));
 35 
 36         mLayoutManager = new LinearLayoutManager(this);
 37         // 设置list的方向，默认是垂直
 38         // mLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
 39 
 40         // 5，spanCount:列数
 41         // mGridLayoutManager = new GridLayoutManager(this, 5);
 42 
 43         recyclerView.setLayoutManager(mLayoutManager);
 44 
 45         initData();
 46         setPersonAdapter();
 47 
 48     }
 49 
 50     /**
 51      * 设置适配器
 52      */
 53     private void setPersonAdapter() {
 54         final PersonAdapter adapter = new PersonAdapter(this, list);
 55         adapter.setOnRecyclerViewListener(new OnRecyclerViewListener() {
 56 
 57             @Override
 58             public boolean onItemLongClick(int position) {
 59                 adapter.addData(position);
 60                 Toast.makeText(MainActivity.this, "吼吼吼吼吼", Toast.LENGTH_SHORT).show();
 61                 return true;
 62             }
 63 
 64             @Override
 65             public void onItemClick(int position) {
 66                 adapter.removeData(position);
 67                 Toast.makeText(MainActivity.this, "哈哈哈哈哈", Toast.LENGTH_SHORT).show();
 68             }
 69         });
 70 
 71         recyclerView.setAdapter(adapter);
 72     }
 73 
 74     /**
 75      * RecyclerView的单击和长按事件监听
 76      * 
 77      * @author fans created on 2016年11月3日
 78      *
 79      */
 80     public interface OnRecyclerViewListener {
 81         void onItemClick(int position);
 82 
 83         boolean onItemLongClick(int position);
 84     }
 85 
 86     /**
 87      * 适配器
 88      * 
 89      * @author fans created on 2016年11月3日
 90      *
 91      */
 92     class PersonAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 93 
 94         private OnRecyclerViewListener onRecyclerViewListener;
 95 
 96         public void setOnRecyclerViewListener(OnRecyclerViewListener onRecyclerViewListener) {
 97             this.onRecyclerViewListener = onRecyclerViewListener;
 98         }
 99 
100         private List<Person> list = new ArrayList<Person>();
101         private Context context;
102 
103         public PersonAdapter(Context context, List<Person> list) {
104             this.context = context;
105             this.list = list;
106         }
107 
108         /**
109          * 增加一个item
110          * 
111          * @param position
112          */
113         public void addData(int position) {
114             list.add(position, new Person("fans+", 23));
115             notifyItemInserted(position);
116             notifyItemRangeChanged(position, list.size());
117         }
118 
119         /**
120          * 删减一个item
121          * 
122          * @param position
123          */
124         public void removeData(int position) {
125             list.remove(position);
126             notifyDataSetChanged();
127             notifyItemRemoved(position);
128             notifyItemRangeChanged(position, list.size());
129         }
130 
131         @Override
132         public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int i) {
133             View view = LayoutInflater.from(context).inflate(R.layout.item, parent, false);
134             return new PersonViewHolder(view);
135         }
136 
137         @Override
138         public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) {
139             PersonViewHolder holder = (PersonViewHolder) viewHolder;
140             holder.position = i;
141             Person person = list.get(i);
142             holder.tv.setText(person.name);
143 
144         }
145 
146         @Override
147         public int getItemCount() {
148             return list.size();
149         }
150 
151         /**
152          * 自定义holder
153          * 
154          * @author fans created on 2016年11月4日
155          *
156          */
157         class PersonViewHolder extends RecyclerView.ViewHolder
158                 implements View.OnClickListener, View.OnLongClickListener {
159             public View rootView;
160             TextView tv;
161             public int position;
162 
163             public PersonViewHolder(View itemView) {
164                 super(itemView);
165                 tv = (TextView) itemView.findViewById(R.id.list_item);
166                 rootView = itemView.findViewById(R.id.recycler_view_test_item_person_view);
167                 rootView.setOnClickListener(this);
168                 rootView.setOnLongClickListener(this);
169             }
170 
171             @Override
172             public void onClick(View v) {
173                 if (null != onRecyclerViewListener) {
174                     onRecyclerViewListener.onItemClick(position);
175                 }
176             }
177 
178             @Override
179             public boolean onLongClick(View v) {
180                 if (null != onRecyclerViewListener) {
181                     return onRecyclerViewListener.onItemLongClick(position);
182                 }
183                 return false;
184             }
185         }
186 
187     }
188 
189     /**
190      * 填充数据
191      */
192     private void initData() {
193         for (int i = 0; i < 10; i++) {
194             list.add(new Person("fans" + i, 10 + i));
195         }
196     }
197 
198     class Person {
199         public String name;
200         public int age;
201 
202         public Person(String name, int age) {
203             super();
204             this.name = name;
205             this.age = age;
206         }
207 
208     }
209 
210     /**
211      * 自定义的分割线
212      * 
213      * @author fans created on 2016年11月4日
214      *
215      */
216     class MyDecoration extends RecyclerView.ItemDecoration {
217 
218         private Context mContext;
219         private Drawable mDivider;
220         private int mOrientation;
221         public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
222         public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
223 
224         // 我们通过获取系统属性中的listDivider来添加，在系统中的AppTheme中设置
225         public final int[] ATRRS = new int[] { android.R.attr.listDivider };
226 
227         public MyDecoration(Context context, int orientation) {
228             this.mContext = context;
229             final TypedArray ta = context.obtainStyledAttributes(ATRRS);
230             this.mDivider = ta.getDrawable(0);
231             ta.recycle();
232             setOrientation(orientation);
233         }
234 
235         // 设置屏幕的方向
236         public void setOrientation(int orientation) {
237             if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
238                 throw new IllegalArgumentException("invalid orientation");
239             }
240             mOrientation = orientation;
241         }
242 
243         @Override
244         public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
245             if (mOrientation == HORIZONTAL_LIST) {
246                 drawVerticalLine(c, parent, state);
247             } else {
248                 drawHorizontalLine(c, parent, state);
249             }
250         }
251 
252         // 画横线, 这里的parent其实是显示在屏幕显示的这部分
253         public void drawHorizontalLine(Canvas c, RecyclerView parent, RecyclerView.State state) {
254             int left = parent.getPaddingLeft();
255             int right = parent.getWidth() - parent.getPaddingRight();
256             final int childCount = parent.getChildCount();
257             for (int i = 0; i < childCount; i++) {
258                 final View child = parent.getChildAt(i);
259 
260                 // 获得child的布局信息
261                 final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
262                 final int top = child.getBottom() + params.bottomMargin;
263                 final int bottom = top + mDivider.getIntrinsicHeight();
264                 mDivider.setBounds(left, top, right, bottom);
265                 mDivider.draw(c);
266                 // Log.d("wnw", left + " " + top + " "+right+" "+bottom+" "+i);
267             }
268         }
269 
270         // 画竖线
271         public void drawVerticalLine(Canvas c, RecyclerView parent, RecyclerView.State state) {
272             int top = parent.getPaddingTop();
273             int bottom = parent.getHeight() - parent.getPaddingBottom();
274             final int childCount = parent.getChildCount();
275             for (int i = 0; i < childCount; i++) {
276                 final View child = parent.getChildAt(i);
277 
278                 // 获得child的布局信息
279                 final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
280                 final int left = child.getRight() + params.rightMargin;
281                 final int right = left + mDivider.getIntrinsicWidth();
282                 mDivider.setBounds(left, top, right, bottom);
283                 mDivider.draw(c);
284             }
285         }
286 
287         // 由于Divider也有长宽高，每一个Item需要向下或者向右偏移
288         @Override
289         public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
290             if (mOrientation == HORIZONTAL_LIST) {
291                 // 画横线，就是往下偏移一个分割线的高度
292                 outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
293             } else {
294                 // 画竖线，就是往右偏移一个分割线的宽度
295                 outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
296             }
297         }
298     }
299 }

 

layout

 1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     tools:context="${relativePackage}.${activityClass}" >
 6 
 7     <android.support.v7.widget.RecyclerView
 8         android:id="@+id/recycler_view_test_rv"
 9         android:layout_width="match_parent"
10         android:layout_height="match_parent"
11         android:background="#bbccaa"
12         android:scrollbars="vertical" />
13 
14 </RelativeLayout>

 

item

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:id="@+id/recycler_view_test_item_person_view"
 4     android:layout_width="match_parent"
 5     android:layout_height="50dp"
 6     android:layout_margin="16sp"
 7     android:orientation="vertical" >
 8 
 9     <TextView
10         android:id="@+id/list_item"
11         android:layout_width="match_parent"
12         android:layout_height="match_parent"
13         android:background="#08da1d"
14         android:gravity="center"
15         android:textColor="#f7f4f7"
16         android:textSize="20sp" />
17 
18 </LinearLayout>

 

posted on 2016-11-04 11:05  小阿仙的fans  阅读(204)  评论(0)    收藏  举报

导航