展示数据使用：recyclerview，retrofit，greendao，butterknife，eventbus，fresco。实现效果图列表。MVP模式。
来源：互联网 发布：fcn网络结构 编辑：程序博客网 时间：2024/06/06 08:58
实现思路必须步骤。新框架愿各位同门进行学习，思路清析一下。
一，首先添加依赖。
compile 'com.squareup.retrofit2:converter-gson:2.3.0'implementation 'com.android.support:recyclerview-v7:26.1.0'compile 'com.squareup.retrofit2:retrofit:2.3.0'compile 'org.greenrobot:greendao:3.2.0'compile 'com.jakewharton:butterknife:8.8.1'annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'compile 'org.greenrobot:eventbus:3.1.1'compile 'com.facebook.fresco:fresco:1.5.0'二。添加网络权限；
<uses-permission android:name="android.permission.INTERNET"/>三。接下来就是类的创建。
1，对对数据类的封装。创建bean类。
public class Bean { /** * code : 200 * msg : success * data : {"category":[{"id":"16","cat_name":"按功效","is_leaf":"0","children":[{"id":"17","cat_name":"补水保湿","is_leaf":"1"},{"id":"31","cat_name":"舒缓修护","is_leaf":"1"},{"id":"19","cat_name":"控油去痘","is_leaf":"1"},{"id":"18","cat_name":"美白提亮","is_leaf":"1"},{"id":"20","cat_name":"紧致抗皱","is_leaf":"1"}]},{"id":"6","cat_name":"按属性","is_leaf":"0","children":[{"id":"38","cat_name":"面膜","is_leaf":"0"},{"id":"39","cat_name":"润肤水","is_leaf":"1"},{"id":"40","cat_name":"润肤乳","is_leaf":"1"},{"id":"24","cat_name":"洁面乳","is_leaf":"0"},{"id":"35","cat_name":"其他","is_leaf":"0"},{"id":"33","cat_name":"实惠套装","is_leaf":"1"},{"id":"9","cat_name":"贴式面膜","is_leaf":"0"},{"id":"10","cat_name":"睡眠面膜","is_leaf":"0"},{"id":"23","cat_name":"泥浆面膜","is_leaf":"0"},{"id":"41","cat_name":"男士","is_leaf":"0"}]},{"id":"11","cat_name":"按肤质","is_leaf":"0","children":[{"id":"14","cat_name":"混合性肤质","is_leaf":"1"},{"id":"13","cat_name":"中性肤质","is_leaf":"1"},{"id":"29","cat_name":"干性肤质","is_leaf":"1"},{"id":"28","cat_name":"油性肤质","is_leaf":"1"},{"id":"15","cat_name":"痘痘肤质","is_leaf":"1"},{"id":"37","cat_name":"敏感肤质","is_leaf":"0"}]}],"goodsBrief":[{"id":"121","goods_name":"经典款丨美白嫩肤面膜7片","shop_price":49.9,"market_price":99,"goods_img":"https://image.yunifang.com/yunifang/images/goods/121/goods_img/17062610568378169043195978.jpg","reservable":false,"efficacy":"美白嫩肤 层层葆鲜","stock_number":0,"restrict_purchase_num":0},{"id":"684","goods_name":"解救肌渴丨花粹水润面膜套装10片","shop_price":29.9,"market_price":139,"goods_img":"https://image.yunifang.com/yunifang/images/goods/684/goods_img/17062610401397749701177609.jpg","reservable":false,"efficacy":"水润充盈 鲜嫩少女肌","stock_number":0,"restrict_purchase_num":0},{"id":"772","goods_name":"热销爆款丨清润莹亮黑膜套装21片","shop_price":99.9,"market_price":297,"goods_img":"https://image.yunifang.com/yunifang/images/goods/772/goods_img/171016095389114258195255761.jpg","reservable":false,"efficacy":"自然莹亮 水感瓷肌","stock_number":0,"restrict_purchase_num":0},{"id":"5","goods_name":"亮采金桂花眼膜贴60片","shop_price":69,"market_price":129,"goods_img":"https://image.yunifang.com/yunifang/images/goods/5/goods_img/17103118031591202108007689.jpg","reservable":false,"efficacy":"补水靓眼 改善熊猫眼","stock_number":0,"restrict_purchase_num":0},{"id":"343","goods_name":"美白嫩肤润肤水150ml","shop_price":69,"market_price":119,"goods_img":"https://image.yunifang.com/yunifang/images/goods/343/goods_img/170626103423611420000294568.jpg","reservable":false,"efficacy":"补水保湿 美白嫩肤","stock_number":0,"restrict_purchase_num":0},{"id":"9","goods_name":"玫瑰滋养矿物睡眠面膜180g","shop_price":59.9,"market_price":99,"goods_img":"https://image.yunifang.com/yunifang/images/goods/9/goods_img/170626112611018894167156705.jpg","reservable":false,"efficacy":"镇店之宝 彻夜补水","stock_number":0,"restrict_purchase_num":0},{"id":"10","goods_name":"美白嫩肤睡眠面膜180g","shop_price":69,"market_price":119,"goods_img":"https://image.yunifang.com/yunifang/images/goods/10/goods_img/170626112190919312919673075.jpg","reservable":false,"efficacy":"水润一夜 美白透亮","stock_number":0,"restrict_purchase_num":0},{"id":"446","goods_name":"芦荟补水保湿凝胶150g","shop_price":49.9,"market_price":89,"goods_img":"https://image.yunifang.com/yunifang/images/goods/446/goods_img/17112211433972519259384989.jpg","reservable":false,"efficacy":"滋养肌肤 自然水润","stock_number":0,"restrict_purchase_num":0},{"id":"16","goods_name":"玫瑰滋养保湿四件套","shop_price":169.9,"market_price":259.9,"goods_img":"https://image.yunifang.com/yunifang/images/goods/16/goods_img/17062611152592656236701367.jpg","reservable":false,"efficacy":"一整套源源补水","stock_number":0,"restrict_purchase_num":0},{"id":"8","goods_name":"全新升级丨美白嫩肤面膜20片","shop_price":129.9,"market_price":359,"goods_img":"https://image.yunifang.com/yunifang/images/goods/8/goods_img/170818182578717903477668239.jpg","reservable":false,"efficacy":"真美白 匠心造","stock_number":0,"restrict_purchase_num":0},{"id":"14","goods_name":"矿物泥浆鼻膜60g","shop_price":55,"market_price":69,"goods_img":"https://image.yunifang.com/yunifang/images/goods/14/goods_img/170626111762918631255244111.jpg","reservable":false,"efficacy":"收敛毛孔 改善黑头","stock_number":0,"restrict_purchase_num":0},{"id":"189","goods_name":"清爽平衡护肤三件套","shop_price":99.9,"market_price":179.9,"goods_img":"https://image.yunifang.com/yunifang/images/goods/189/goods_img/1706261046499486999388441.jpg","reservable":false,"efficacy":"深层清洁 平衡水油","stock_number":0,"restrict_purchase_num":0},{"id":"11","goods_name":"清爽平衡矿物泥浆面膜260g","shop_price":99,"market_price":99,"goods_img":"https://image.yunifang.com/yunifang/images/goods/11/goods_img/170626112085420599974158029.jpg","reservable":false,"efficacy":"口碑泥浆 清爽控油","stock_number":0,"restrict_purchase_num":0},{"id":"4","goods_name":"黑玫瑰矿物洁面乳100ml","shop_price":49,"market_price":59,"goods_img":"https://image.yunifang.com/yunifang/images/goods/4/goods_img/17062611262464209534577694.jpg","reservable":false,"efficacy":"温和清洁 提亮肤色","stock_number":0,"restrict_purchase_num":0},{"id":"559","goods_name":"竹炭净透矿物泥浆面膜110g","shop_price":59,"market_price":99,"goods_img":"https://image.yunifang.com/yunifang/images/goods/559/goods_img/170627164784010618075663103.jpg","reservable":false,"efficacy":"控油净肤 细腻毛孔","stock_number":0,"restrict_purchase_num":0}]} */ private int code; private String msg; private DataBean data; public int getCode() { return code; } public void setCode(int code) { this.code = code; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public DataBean getData() { return data; } public void setData(DataBean data) { this.data = data; } public static class DataBean { private List<CategoryBean> category; private List<GoodsBriefBean> goodsBrief; public List<CategoryBean> getCategory() { return category; } public void setCategory(List<CategoryBean> category) { this.category = category; } public List<GoodsBriefBean> getGoodsBrief() { return goodsBrief; } public void setGoodsBrief(List<GoodsBriefBean> goodsBrief) { this.goodsBrief = goodsBrief; } public static class CategoryBean { /** * id : 16 * cat_name : 按功效 * is_leaf : 0 * children : [{"id":"17","cat_name":"补水保湿","is_leaf":"1"},{"id":"31","cat_name":"舒缓修护","is_leaf":"1"},{"id":"19","cat_name":"控油去痘","is_leaf":"1"},{"id":"18","cat_name":"美白提亮","is_leaf":"1"},{"id":"20","cat_name":"紧致抗皱","is_leaf":"1"}] */ private String id; private String cat_name; private String is_leaf; private List<ChildrenBean> children; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getCat_name() { return cat_name; } public void setCat_name(String cat_name) { this.cat_name = cat_name; } public String getIs_leaf() { return is_leaf; } public void setIs_leaf(String is_leaf) { this.is_leaf = is_leaf; } public List<ChildrenBean> getChildren() { return children; } public void setChildren(List<ChildrenBean> children) { this.children = children; } public static class ChildrenBean { /** * id : 17 * cat_name : 补水保湿 * is_leaf : 1 */ private String id; private String cat_name; private String is_leaf; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getCat_name() { return cat_name; } public void setCat_name(String cat_name) { this.cat_name = cat_name; } public String getIs_leaf() { return is_leaf; } public void setIs_leaf(String is_leaf) { this.is_leaf = is_leaf; } } } }}2.创建连接bean—— GoodsBriefBean 类。
public class GoodsBriefBean { /** * id : 121 * goods_name : 经典款丨美白嫩肤面膜7片 * shop_price : 49.9 * market_price : 99.0 * goods_img : https://image.yunifang.com/yunifang/images/goods/121/goods_img/17062610568378169043195978.jpg * reservable : false * efficacy : 美白嫩肤 层层葆鲜 * stock_number : 0 * restrict_purchase_num : 0 */ @Id(autoincrement = true) private Long iid; private String id; private String goods_name; private double shop_price; private double market_price; private String goods_img; private boolean reservable; private String efficacy; private int stock_number; private int restrict_purchase_num; public GoodsBriefBean() { } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getGoods_name() { return goods_name; } public void setGoods_name(String goods_name) { this.goods_name = goods_name; } public double getShop_price() { return shop_price; } public void setShop_price(double shop_price) { this.shop_price = shop_price; } public double getMarket_price() { return market_price; } public void setMarket_price(double market_price) { this.market_price = market_price; } public String getGoods_img() { return goods_img; } public void setGoods_img(String goods_img) { this.goods_img = goods_img; } public boolean isReservable() { return reservable; } public void setReservable(boolean reservable) { this.reservable = reservable; } public String getEfficacy() { return efficacy; } public void setEfficacy(String efficacy) { this.efficacy = efficacy; } public int getStock_number() { return stock_number; } public void setStock_number(int stock_number) { this.stock_number = stock_number; } public int getRestrict_purchase_num() { return restrict_purchase_num; } public void setRestrict_purchase_num(int restrict_purchase_num) { this.restrict_purchase_num = restrict_purchase_num; } public Long getIid() { return this.iid; } public void setIid(Long iid) { this.iid = iid; } public boolean getReservable() { return this.reservable; }}3.创建参数Bean。
public class EventBean { public String url; public String title; public EventBean(String url, String title) { this.url = url; this.title = title; } public String getUrl() { return url; } public String getTitle() { return title; }}4，IApplication初始化类的创建。
public class IApplication extends Application { public static IGetDataBase iGetDataBase; public static DaoSession session; @Override public void onCreate() { super.onCreate(); Fresco.initialize(this); Retrofit retrofit = new Retrofit.Builder().baseUrl("http://m.yunifang.com") .addConverterFactory(GsonConverterFactory.create()) .build(); iGetDataBase = retrofit.create(IGetDataBase.class); DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(this,"test1"); Database database = helper.getWritableDb(); session = new DaoMaster(database).newSession(); }}三，实现Model包中的类。
1，第一步创建MainModel接口·
public interface MainModel { } 2，创建MainModelImpl类。public class MainModelImpl { /** * get 请求 * @param callBack */ public void getData(final ModelCallBack callBack){ Call<Bean> call = IApplication.iGetDataBase.get("96333","bf3386e14fe5bb0bcef234baebca2414"); call.enqueue(new Callback<Bean>() { @Override public void onResponse(Call<Bean> call, Response<Bean> response) { Bean bean = response.body(); callBack.onSuccess(bean); IApplication.session.getGoodsBriefBeanDao().insertInTx(bean.getData().getGoodsBrief()); } @Override public void onFailure(Call<Bean> call, Throwable t) { callBack.onFailure(new Exception("")); } }); } /** * post 请求 */ public void postData(final ModelCallBack callBack){ Call<Bean> call = IApplication.iGetDataBase.get("96333","bf3386e14fe5bb0bcef234baebca2414"); call.enqueue(new Callback<Bean>() { @Override public void onResponse(Call<Bean> call, Response<Bean> response) { Bean bean = response.body(); callBack.onSuccess(bean); } @Override public void onFailure(Call<Bean> call, Throwable t) { callBack.onFailure(new Exception("") ); } }); }}3，创建ModelCallBack接口。
public interface ModelCallBack { public void onSuccess(Bean bean); public void onFailure(Exception e); }四。实现presenter包中的类。
1，创建MainPresenter类。public class MainPresenter { private IMainView iView ; private MainModelImpl mainModel ; public MainPresenter(IMainView view){ this.iView = view; this.mainModel = new MainModelImpl(); } public void get(){ mainModel.getData(new ModelCallBack() { @Override public void onSuccess(Bean bean) { if(iView != null){ iView.onSuccess(bean); } } @Override public void onFailure(Exception e) { if(iView != null){ iView.onFailure(e); } } }); } public void post(){ mainModel.postData(new ModelCallBack() { @Override public void onSuccess(Bean bean) { if(iView != null){ iView.onSuccess(bean); } } @Override public void onFailure(Exception e) { if(iView != null){ iView.onFailure(e); } } }); }}五。实现view包中类。
1，创建IMainView类。
public interface IMainView { public void onSuccess(Bean bean); public void onFailure(Exception e);}
六。创建adapter得类。
创建IApdater适配器类。
public class IApdater extends RecyclerView.Adapter<IApdater.IViewHolder>{ Context context; List<GoodsBriefBean> list ; public IApdater(Context context) { this.context = context; } public void addData(Bean bean){ if(list == null){ list = new ArrayList<>(); } list.addAll(bean.getData().getGoodsBrief()); notifyDataSetChanged(); } @Override public IApdater.IViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = View.inflate(context, R.layout.layout, null); return new IViewHolder(view); } @Override public void onBindViewHolder(IApdater.IViewHolder holder, final int position) { //holder.adapterSimpledraweeview.setImageURI("https://image.yunifang.com/yunifang/images/goods/121/goods_img/17062610568378169043195978.jpg"); holder.adapterSimpledraweeview.setImageURI(list.get(position).getGoods_img()); holder.adapterTextview.setText(list.get(position).getGoods_name()); holder.adapterTextview.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { EventBus.getDefault().postSticky(new EventBean(list.get(position).getGoods_img(),list.get(position).getGoods_name())); context.startActivity(new Intent(context, Main2Activity.class)); } }); } @Override public int getItemCount() { return list == null ? 0 : list.size(); } static class IViewHolder extends RecyclerView.ViewHolder{ @BindView(R.id.adapter_simpledraweeview) SimpleDraweeView adapterSimpledraweeview; @BindView(R.id.adapter_textview) TextView adapterTextview; IViewHolder(View view) { super(view); ButterKnife.bind(this, view); } }}七。创建MainActivity类。
public class MainActivity extends Activity implements IMainView { @BindView(R.id.recycleview) RecyclerView recycleview; private MainPresenter presenter; private IApdater adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); presenter = new MainPresenter(this); presenter.get(); LinearLayoutManager manager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false); adapter = new IApdater(this); recycleview.setLayoutManager(manager); recycleview.setAdapter(adapter); List<GoodsBriefBean> listBeans = IApplication.session.getGoodsBriefBeanDao().loadAll(); for(GoodsBriefBean bean : listBeans){ System.out.println(bean.toString()); } } @Override public void onSuccess(Bean bean) { adapter.addData(bean); } @Override public void onFailure(Exception e) { }}八。创建IGetDataBase请求接口。1，activity布局。public interface IGetDataBase { //random=96333&encode=bf3386e14fe5bb0bcef234baebca2414 @GET("/yunifang/mobile/category/list") Call<Bean> get(@Query("random") String key,@Query("encode") String encode); /** * post 璇锋眰 * @param key * @return */ @FormUrlEncoded @POST("/weixin/query") Call<Bean> post(@Field("key") String key);}九。最后添加两布局。
<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.lianxizongjie.MainActivity"> <android.support.v7.widget.RecyclerView android:id="@+id/recycleview" android:layout_width="match_parent" android:layout_height="match_parent"> </android.support.v7.widget.RecyclerView></android.support.constraint.ConstraintLayout>2.条目布局创建laout。
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:orientation="horizontal" android:layout_height="match_parent"><com.facebook.drawee.view.SimpleDraweeView android:id="@+id/adapter_simpledraweeview" android:layout_width="100dp" android:layout_height="100dp" /> <TextView android:id="@+id/adapter_textview" android:layout_width="match_parent" android:layout_height="wrap_content" /></LinearLayout>这就完成了数据显示。
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