Android购物分类效果实现

2023-09-05 10:43:05 73

本文实例为大家分享了Android购物分类效果展示的具体代码，供大家参考，具体内容如下

SecondActivity.java

publicclassSecondActivityextendsAppCompatActivity{
privateViewPagermPager;
privateRadioGroupmRadioGroup;

@Override
protectedvoidonCreate(@NullableBundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.second);

mPager=findViewById(R.id.pager);
mRadioGroup=findViewById(R.id.group);

mPager.setAdapter(newFragmentPagerAdapter(getSupportFragmentManager()){
@Override
publicFragmentgetItem(intposition){
Fragmentfragment=null;

switch(position){
case0:
fragment=newAfrag();
break;
case1:
fragment=newBfrag();
break;
case2:
fragment=newCfrag();
break;
}
returnfragment;
}

@Override
publicintgetCount(){
return3;
}
});

mRadioGroup.setOnCheckedChangeListener(newRadioGroup.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(RadioGroupradioGroup,inti){
switch(i){
caseR.id.r1:
mPager.setCurrentItem(0);
break;
caseR.id.r2:
mPager.setCurrentItem(1);
break;
caseR.id.r3:
mPager.setCurrentItem(2);
break;
}
}
});
}
}

secondActivity.xml

Afrag.java

publicclassAfragextendsFragment{
privateRecyclerViewmRecyclerView;
publicStringurlString="http://www.wanandroid.com/tools/mockapi/6523/restaurants_offset_0_limit_4";

@Nullable
@Override
publicViewonCreateView(@NonNullLayoutInflaterinflater,@NullableViewGroupcontainer,@NullableBundlesavedInstanceState){
Viewview=View.inflate(getActivity(),R.layout.afrag,null);
mRecyclerView=view.findViewById(R.id.rv);
initData();

returnview;
}

privatevoidinitData(){
OkHttpsokHttps=OkHttps.getInstance();

okHttps.doGet(urlString,newOkHttps.OkCallback(){
@Override
publicvoidonResponse(Stringjson){//瀑布流

PubuBeanpubuBean=newGson().fromJson(json,PubuBean.class);
Listresults=pubuBean.getData();

PubuAdapterpubuAdapter=newPubuAdapter(getActivity());
pubuAdapter.setDatas(results);
mRecyclerView.setAdapter(pubuAdapter);

StaggeredGridLayoutManagermanager=newStaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
mRecyclerView.setLayoutManager(manager);
}

@Override
publicvoidonFailure(Exceptione){

}
});

}
}

afrag.xml

PubuAdapter.java

publicclassPubuAdapterextendsRecyclerView.Adapter{
privateContextmContext;
ArrayListlist;

publicPubuAdapter(Contextcontext){
mContext=context;
list=newArrayList<>();
}

publicvoidsetDatas(Listdatas){
list.addAll(datas);

}
@NonNull
@Override
publicViewHolderonCreateViewHolder(@NonNullViewGroupparent,intviewType){
Viewview=View.inflate(mContext,R.layout.pbitem,null);
ViewHolderholder=newViewHolder(view);
returnholder;
}

@Override
publicvoidonBindViewHolder(@NonNullViewHolderholder,intposition){

holder.mTextView.setText(list.get(position).getName());
Glide.with(mContext).load(list.get(position).getPic_url()).into(holder.mImageView);


}

@Override
publicintgetItemCount(){
returnlist.size();
}



publicclassViewHolderextendsRecyclerView.ViewHolder{
ImageViewmImageView;
TextViewmTextView;
publicViewHolder(ViewitemView){
super(itemView);
mImageView=itemView.findViewById(R.id.image);
mTextView=itemView.findViewById(R.id.t1);

}
}
}

Bfrag.java

publicclassBfragextendsFragment{
privateRecyclerViewmRecyclerView;
LeftAdapteradapter;
StringurlString="http://www.zhaoapi.cn/product/getCatagory";
StringurlString2="http://www.zhaoapi.cn/product/getProductCatagory";
privateRecyclerViewmRecyclerView2;

@Nullable
@Override
publicViewonCreateView(@NonNullLayoutInflaterinflater,@NullableViewGroupcontainer,@NullableBundlesavedInstanceState){
Viewview=View.inflate(getActivity(),R.layout.bfrag,null);//分类页面

mRecyclerView=view.findViewById(R.id.rv1);//左侧列表

mRecyclerView2=view.findViewById(R.id.rv2);//右
initData();

returnview;
}

privatevoidinitData(){
OkHttpsokHttps=OkHttps.getInstance();

okHttps.doGet(urlString,newOkHttps.OkCallback(){
@Override
publicvoidonResponse(Stringjson){//瀑布流

LeftBeanleftBean=newGson().fromJson(json,LeftBean.class);
Listresults=leftBean.getData();

adapter=newLeftAdapter(getActivity());
adapter.setDatas(results);

mRecyclerView.setAdapter(adapter);


mRecyclerView.setLayoutManager(newLinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false));

adapter.setOnItemClickListener(newLeftAdapter.OnItemClickListener(){
@Override
publicvoidonItemClick(intposition){

//Toast.makeText(getActivity(),position+"",Toast.LENGTH_SHORT).show();
rigth(position);
}
});
}

@Override
publicvoidonFailure(Exceptione){

}
});
}

publicvoidrigth(intposition){
HashMapmap=newHashMap<>();
map.put("cid",position+1+"");

OkHttps.getInstance().doPost(urlString2,map,newOkHttps.OkCallback(){
@Override
publicvoidonResponse(Stringjson){

RightBeanrightBean=newGson().fromJson(json,RightBean.class);
Listresults=rightBean.getData();

RightAdapterrightAdapter=newRightAdapter(getActivity());
rightAdapter.setDatas(results);

mRecyclerView2.setAdapter(rightAdapter);

mRecyclerView2.setLayoutManager(newGridLayoutManager(getActivity(),3));
}

@Override
publicvoidonFailure(Exceptione){

}
});
}
}

bfrag.xml

LeftAdapter.java

publicclassLeftAdapterextendsRecyclerView.Adapter{
privateContextmContext;
ArrayListlist;

publicLeftAdapter(Contextcontext){
mContext=context;
list=newArrayList<>();
}

publicvoidsetDatas(Listdatas){
list.addAll(datas);

}

publicinterfaceOnItemClickListener{//自定义接口回调设置点击事件
voidonItemClick(intposition);
}

privateOnItemClickListenermOnItemClickListener;

publicvoidsetOnItemClickListener(OnItemClickListeneronItemClickListener){
mOnItemClickListener=onItemClickListener;
}

@NonNull
@Override
publicViewHolderonCreateViewHolder(@NonNullViewGroupparent,intviewType){
Viewview=View.inflate(mContext,R.layout.leftitem,null);
ViewHolderholder=newViewHolder(view);
returnholder;
}

@Override
publicvoidonBindViewHolder(@NonNullfinalViewHolderholder,intposition){

holder.mTextView.setText(list.get(position).getName());

holder.itemView.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewview){
intposition1=holder.getLayoutPosition();
mOnItemClickListener.onItemClick(position1);
}
});
}

@Override
publicintgetItemCount(){
returnlist.size();
}



publicclassViewHolderextendsRecyclerView.ViewHolder{
TextViewmTextView;
publicViewHolder(ViewitemView){
super(itemView);
mTextView=itemView.findViewById(R.id.text1);

}
}
}

RightAdapter.java

publicclassRightAdapterextendsRecyclerView.Adapter{
privateContextmContext;
ArrayListlist;

publicRightAdapter(Contextcontext){
mContext=context;
list=newArrayList<>();
}

publicvoidsetDatas(Listdatas){
list.addAll(datas);

}
@NonNull
@Override
publicViewHolderonCreateViewHolder(@NonNullViewGroupparent,intviewType){
Viewview=View.inflate(mContext,R.layout.rightitem,null);
ViewHolderholder=newViewHolder(view);
returnholder;
}

@Override
publicvoidonBindViewHolder(@NonNullViewHolderholder,intposition){
holder.mTextView.setText(list.get(position).getName());
Glide.with(mContext).load(list.get(position).getList().get(position).getIcon()).into(holder.mImageView);
}

@Override
publicintgetItemCount(){
returnlist.size();
}



publicclassViewHolderextendsRecyclerView.ViewHolder{
ImageViewmImageView;
TextViewmTextView;

publicViewHolder(ViewitemView){
super(itemView);
mImageView=itemView.findViewById(R.id.image1);
mTextView=itemView.findViewById(R.id.text2);

}
}
}

OkHttps.java

publicclassOkHttps{
Handlerhandler;
privatefinalOkHttpClientmOkHttpClient;
privatestaticOkHttpsmOkHttps;

privateOkHttps(){
handler=newHandler(Looper.getMainLooper());

LoggingInterceptorloggingInterceptor=newLoggingInterceptor();//日志拦截器
mOkHttpClient=newOkHttpClient.Builder()
.addInterceptor(loggingInterceptor)//设置日志拦截器
.connectTimeout(5000,TimeUnit.MILLISECONDS)
.readTimeout(5000,TimeUnit.MILLISECONDS)
.writeTimeout(5000,TimeUnit.MILLISECONDS)
.build();

}

publicstaticOkHttpsgetInstance(){
if(mOkHttps==null){
synchronized(OkHttps.class){
if(mOkHttps==null){
returnmOkHttps=newOkHttps();
}
}
}
returnmOkHttps;
}

publicinterfaceOkCallback{
voidonResponse(Stringjson);

voidonFailure(Exceptione);

}

publicvoiddoPost(Stringurl,Mapmap,finalOkCallbackokCallback){
FormBody.Builderbuilder=newFormBody.Builder();
if(map!=null){
for(Stringkey:map.keySet()){
builder.add(key,map.get(key));
}
}

FormBodyformBody=builder.build();

finalRequestrequest=newRequest.Builder()
.post(formBody)
.url(url)
.build();

Callcall=mOkHttpClient.newCall(request);
call.enqueue(newCallback(){
@Override
publicvoidonFailure(Callcall,finalIOExceptione){
if(okCallback!=null){
handler.post(newRunnable(){
@Override
publicvoidrun(){

okCallback.onFailure(e);
}
});
}
}

@Override
publicvoidonResponse(Callcall,Responseresponse)throwsIOException{

try{
if(response!=null&&response.isSuccessful()){
finalStringjson=response.body().string();
handler.post(newRunnable(){
@Override
publicvoidrun(){
if(okCallback!=null){

okCallback.onResponse(json);
return;
}
}
});
}
}catch(IOExceptione){
e.printStackTrace();
}
if(okCallback!=null){
okCallback.onFailure(newException("网络异常"));
}
}
});

}
publicvoiddoGet(Stringurl,finalOkCallbackokCallback){
Requestrequest=newRequest.Builder()
.url(url)
.build();

Callcall=mOkHttpClient.newCall(request);
call.enqueue(newCallback(){
@Override
publicvoidonFailure(Callcall,finalIOExceptione){
if(okCallback!=null){
//切换到主线程
handler.post(newRunnable(){
@Override
publicvoidrun(){
okCallback.onFailure(e);
}
});
}
}

@Override
publicvoidonResponse(Callcall,Responseresponse)throwsIOException{

try{
if(response!=null&&response.isSuccessful()){
finalStringjson=response.body().string();
handler.post(newRunnable(){
@Override
publicvoidrun(){
if(okCallback!=null){
okCallback.onResponse(json);
}

}
});
}
}catch(IOExceptione){
e.printStackTrace();
}
}
});
}
}

依赖

implementation'com.google.code.gson:gson:2.8.5'
implementation'com.squareup.okhttp3:okhttp:3.12.0'
implementation'com.android.support:recyclerview-v7:27.1.1'
implementation'com.github.bumptech.glide:glide:3.7.0'

LoggingInterceptor.java//拦截器

classLoggingInterceptorimplementsInterceptor{
@Override
publicResponseintercept(Chainchain)throwsIOException{
//拿到Request对象
Requestrequest=chain.request();

longt1=System.nanoTime();
System.out.println("request="+String.format("Sendingrequest%son%s%n%s",
request.url(),chain.connection(),request.headers()));

//拿到Response对象
Responseresponse=chain.proceed(request);

longt2=System.nanoTime();
//得出请求网络,到得到结果,中间消耗了多长时间
System.out.println("response"+String.format("Receivedresponsefor%sin%.1fms%n%s",
response.request().url(),(t2-t1)/1e6d,response.headers()));
returnresponse;
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

Android购物分类效果实现

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