Android商城开发系列（十）—— 活动广告布局实现

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <FrameLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:clipChildren="false">
 7 
 8     <android.support.v4.view.ViewPager
 9         android:id="@+id/act_viewpager"
10         android:layout_width="match_parent"
11         android:layout_height="120dp"
12         android:layout_gravity="center"
13         android:layout_marginRight="20dp"
14         android:layout_marginLeft="20dp"
15         android:clipChildren="false"/>
16 
17 </FrameLayout>

  1 package com.nyl.shoppingmall.home.adapter;
  2 
  3 import android.content.Context;
  4 import android.support.v4.view.PagerAdapter;
  5 import android.support.v4.view.ViewPager;
  6 import android.support.v7.widget.RecyclerView;
  7 import android.view.LayoutInflater;
  8 import android.view.View;
  9 import android.view.ViewGroup;
 10 import android.widget.AdapterView;
 11 import android.widget.GridView;
 12 import android.widget.ImageView;
 13 import android.widget.Toast;
 14 
 15 import com.bumptech.glide.Glide;
 16 import com.nyl.shoppingmall.R;
 17 import com.nyl.shoppingmall.home.bean.ResultBeanData;
 18 import com.nyl.shoppingmall.utils.Constants;
 19 import com.youth.banner.Banner;
 20 import com.youth.banner.BannerConfig;
 21 import com.youth.banner.Transformer;
 22 import com.youth.banner.listener.OnBannerClickListener;
 23 import com.youth.banner.listener.OnLoadImageListener;
 24 
 25 import java.util.ArrayList;
 26 import java.util.List;
 27 
 28 /**
 29  * 首页适配器
 30  */
 31 
 32 public class HomeFragmentAdapter extends RecyclerView.Adapter{
 33 
 34     /**
 35      * 广告幅类型
 36      */
 37     public static final int BANNER = 0;
 38 
 39     /**
 40      * 频道类型
 41      */
 42     public static final int CHANNEL = 1;
 43 
 44     /**
 45      * 活动类型
 46      */
 47     public static final int ACT = 2;
 48 
 49     /**
 50      * 秒杀类型
 51      */
 52     public static final int SECKILL = 3;
 53 
 54     /**
 55      * 推荐类型
 56      */
 57     public static final int RECOMMEND = 4;
 58 
 59     /**
 60      * 热卖类型
 61      */
 62     public static final int HOT = 5;
 63 
 64     /**
 65      * 初始化布局
 66      */
 67     private LayoutInflater mLayoutInflater;
 68 
 69     /**
 70      * 数据
 71      */
 72     private ResultBeanData.ResultBean resultBean;
 73     private Context mContext;
 74 
 75     /**
 76      * 当前类型
 77      */
 78     private int currenType = BANNER;
 79 
 80     public HomeFragmentAdapter(Context mContext, ResultBeanData.ResultBean resultBean) {
 81         this.mContext = mContext;
 82         this.resultBean = resultBean;
 83         mLayoutInflater = LayoutInflater.from(mContext);
 84     }
 85 
 86     /**
 87      * 相当于getView创建ViewHolder部分代码
 88      * @param parent
 89      * @param viewType 当前的类型
 90      * @return
 91      */
 92     @Override
 93     public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 94         //广告福
 95         if (viewType == BANNER){
 96             //创建BannerViewHolder，Banner里面传布局文件
 97             return new BannerViewHolder(mContext,mLayoutInflater.inflate(R.layout.banner_viewpager,null));
 98             //频道
 99         }else if (viewType == CHANNEL){
100             return new ChannelViewHolder(mContext,mLayoutInflater.inflate(R.layout.channel_item,null));
101             //活动
102         }else if (viewType == ACT){
103             return new ActViewHolder(mContext,mLayoutInflater.inflate(R.layout.act_item,null));
104         }
105         return null;
106     }
107 
108     /**
109      * 相当于getView中绑定数据模块
110      * @param holder
111      * @param position
112      */
113     @Override
114     public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
115         //轮循广告
116         if (getItemViewType(position) == BANNER){
117             BannerViewHolder bannerViewHolder = (BannerViewHolder) holder;
118             bannerViewHolder.setData(resultBean.getBanner_info());
119             /**
120              * 频道
121              */
122         }else if (getItemViewType(position) == CHANNEL){
123             ChannelViewHolder channelViewHolder = (ChannelViewHolder) holder;
124             channelViewHolder.setData(resultBean.getChannel_info());
125             /**
126              * 活动
127              */
128         }else if (getItemViewType(position) == ACT){
129             ActViewHolder actViewHolder = (ActViewHolder) holder;
130             actViewHolder.setData(resultBean.getAct_info());
131         }
132     }
133 
134     /**
135      * 广告幅
136      */
137     class BannerViewHolder extends RecyclerView.ViewHolder{
138 
139         private Context mContext;
140         private Banner banner;
141 
142         public BannerViewHolder(Context mContext, View itemView) {
143             super(itemView);
144             this.mContext = mContext;
145             this.banner = (Banner) itemView.findViewById(R.id.banner);
146         }
147 
148         public void setData(List<ResultBeanData.ResultBean.BannerInfoEntity> banner_info) {
149             //得到图片集合地址
150             List<String> imagesUrl = new ArrayList<>();
151             for (int i = 0;i<banner_info.size();i++){
152                 String imageUrl = banner_info.get(i).getImage();
153                 imagesUrl.add(imageUrl);
154             }
155             //设置循环指示点
156             banner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR);
157             //设置手风琴效果
158             banner.setBannerAnimation(Transformer.Accordion);
159             //设置Banner图片数据
160             banner.setImages(imagesUrl, new OnLoadImageListener() {
161                 @Override
162                 public void OnLoadImage(ImageView view, Object url) {
163                     //联网请求图片-Glide
164                     Glide.with(mContext).load(Constants.BASE_URL_IMAGE + url).into(view);
165                 }
166             });
167             //设置点击事件
168             banner.setOnBannerClickListener(new OnBannerClickListener() {
169                 @Override
170                 public void OnBannerClick(int position) {
171                     Toast.makeText(mContext,"position=="+position,Toast.LENGTH_SHORT).show();
172                 }
173             });
174         }
175     }
176 
177     /**
178      * 频道
179      */
180     class ChannelViewHolder extends RecyclerView.ViewHolder{
181 
182         private Context mContext;
183         private GridView gv_channel;
184         private ChannelAdapter adapter;
185 
186         public ChannelViewHolder(Context mContext, View itemView) {
187             super(itemView);
188             this.mContext = mContext;
189             gv_channel = (GridView) itemView.findViewById(R.id.gv_channel);
190         }
191 
192         public void setData(List<ResultBeanData.ResultBean.ChannelInfoBean> channel_info) {
193             //得到数据后，就设置GridView的适配器
194             adapter = new ChannelAdapter(mContext,channel_info);
195             gv_channel.setAdapter(adapter);
196 
197             //设置item的点击事件
198             gv_channel.setOnItemClickListener(new AdapterView.OnItemClickListener() {
199                 @Override
200                 public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
201                     Toast.makeText(mContext,"position"+position,Toast.LENGTH_SHORT).show();
202                 }
203             });
204         }
205     }
206 
207     /**
208      * 活动
209      */
210     class ActViewHolder extends RecyclerView.ViewHolder{
211 
212         private Context mContext;
213         private ViewPager act_viewpager;
214 
215         public ActViewHolder(Context mContext,View itemView) {
216             super(itemView);
217             this.mContext = mContext;
218             act_viewpager = (ViewPager) itemView.findViewById(R.id.act_viewpager);
219         }
220 
221         public void setData(final List<ResultBeanData.ResultBean.ActInfoEntity> act_info) {
222             //设置间距
223             act_viewpager.setPageMargin(20);
224             //有数据后，就设置数据适配器
225             act_viewpager.setAdapter(new PagerAdapter() {
226                 @Override
227                 public int getCount() {
228                     return act_info.size();
229                 }
230 
231                 /**
232                  *
233                  * @param view 页面
234                  * @param object instantiateItem方法返回的值
235                  * @return
236                  */
237                 @Override
238                 public boolean isViewFromObject(View view, Object object) {
239                     return view == object;
240                 }
241 
242                 /**
243                  *
244                  * @param container ViewPager
245                  * @param position 对应页面的位置
246                  * @return
247                  */
248                 @Override
249                 public Object instantiateItem(ViewGroup container, final int position) {
250                     //实例化ImageView
251                     ImageView imageView = new ImageView(mContext);
252                     //设置ImageView的拉伸
253                     imageView.setScaleType(ImageView.ScaleType.FIT_XY);
254                     //根据Glide设置图片
255                     Glide.with(mContext).load(Constants.BASE_URL_IMAGE+act_info.get(position).getIcon_url()).into(imageView);
256                     //添加到容器中
257                     container.addView(imageView);
258 
259                     //设置点击事件
260                     imageView.setOnClickListener(new View.OnClickListener() {
261                         @Override
262                         public void onClick(View view) {
263                             Toast.makeText(mContext,"position=="+position,Toast.LENGTH_SHORT).show();
264                         }
265                     });
266                     return imageView;
267                 }
268 
269                 @Override
270                 public void destroyItem(ViewGroup container, int position, Object object) {
271                     container.removeView((View) object);
272                 }
273             });
274         }
275     }
276 
277     /**
278      * 得到不同的类型
279      * @param position
280      * @return
281      */
282     @Override
283     public int getItemViewType(int position) {
284         switch (position){
285             case BANNER: //广告幅
286                 currenType = BANNER;
287                 break;
288             case CHANNEL: //频道
289                 currenType = CHANNEL;
290                 break;
291             case ACT: //活动
292                 currenType = ACT;
293                 break;
294             case SECKILL: //秒杀
295                 currenType = SECKILL;
296                 break;
297             case RECOMMEND: //推荐
298                 currenType = RECOMMEND;
299                 break;
300             case HOT: //热卖
301                 currenType = HOT;
302                 break;
303         }
304         return currenType;
305     }
306 
307     /**
308      * 总共有多少个item
309      * @return
310      */
311     @Override
312     public int getItemCount() {
313         return 3;
314     }
315 
316 
317 }