电商XRecyclerView展示，搜索，布局切换
加入权限
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
加入依赖
implementation('com.jcodecraeer:xrecyclerview:1.5.9') { exclude group: 'com.android.support' }
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
implementation 'com.github.bumptech.glide:glide:3.8.0'
implementation 'com.android.support:recyclerview-v7:27.1.1'
导入gson.jar包
写Bean类
Goods
http://www.zhaoapi.cn/product/searchProducts?keywords=手机
private double bargainPrice;
private String createtime;
private String detailUrl;
private String images;
private int num;
private int pid;
private double price;
private int pscid;
private int selected;
private int sellerid;
private String subhead;
private String title;
写Result
public class Result<T> {
int code;
String msg;
T 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 T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
}
在Utils包中写
HttpUtils
public class HttpUtils {
public static String get(String urlString){
OkHttpClient okHttpClient = new OkHttpClient();
Request request = new Request.Builder().url(urlString).get().build();
try {
Response response = okHttpClient.newCall(request).execute();
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
public static String postForm(String url,String[] name,String[] value){
OkHttpClient okHttpClient = new OkHttpClient();
FormBody.Builder formBuild = new FormBody.Builder();
for (int i = 0; i < name.length; i++) {
formBuild.add(name[i],value[i]);
}
Request request = new Request.Builder().url(url).post(formBuild.build()).build();
try {
Response response = okHttpClient.newCall(request).execute();
String result = response.body().string();
Log.i("dt",result);
return result;
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
public static String postFile(String url,String[] name,String[] value,String fileParamName,File file){
OkHttpClient okHttpClient = new OkHttpClient();
MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
if(file != null){
// MediaType.parse() 里面是上传的文件类型。
RequestBody body = RequestBody.create(MediaType.parse("image/*"), file);
String filename = file.getName();
// 参数分别为: 文件参数名 ，文件名称 ， RequestBody
requestBody.addFormDataPart(fileParamName, "jpg", body);
}
if (name!=null) {
for (int i = 0; i < name.length; i++) {
requestBody.addFormDataPart(name[i], value[i]);
}
}
Request request = new Request.Builder().url(url).post(requestBody.build()).build();
try {
Response response = okHttpClient.newCall(request).execute();
if (response.code()==200) {
return response.body().string();
}
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
public static String postJson(String url,String jsonString){
OkHttpClient okHttpClient = new OkHttpClient();
RequestBody requestBody = RequestBody.create(MediaType.parse("application/json"),jsonString);
Request request = new Request.Builder().url(url).post(requestBody).build();
try {
Response response = okHttpClient.newCall(request).execute();
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
}
在core包里写
BasePresenter
public abstract class BasePresenter {
DataCall dataCall;
public BasePresenter(DataCall dataCall){
this.dataCall = dataCall;
}
Handler mHandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
Result result = (Result) msg.obj;
if (result.getCode()==0){
dataCall.success(result.getData());
}else{
dataCall.fail(result);
}
}
};
public void requestData(final Object...args){
new Thread(new Runnable() {
@Override
public void run() {
Message message = mHandler.obtainMessage();
message.obj = getData(args);
mHandler.sendMessage(message);
}
}).start();
}
protected abstract Result getData(Object...args);
public void unBindCall(){
this.dataCall = null;
}
}
写下接口DataCall
public interface DataCall<T> {
void success(T data);
void fail(Result result);
}
写下DTApplication
public class DTApplication extends Application {
private static DTApplication instance;
private SharedPreferences mSharedPreferences;
@Override
public void onCreate() {
super.onCreate();
instance = this;
mSharedPreferences = getSharedPreferences("application",
Context.MODE_PRIVATE);
}
public static DTApplication getInstance() {
return instance;
}
public SharedPreferences getShare() {
return mSharedPreferences;
}
}
在M层写model包写
GoodsListModel
public class GoodsListModel {
public static Result goodsList(String keywords, final String page,final String sort) {
String resultString = HttpUtils.postForm("http://www.zhaoapi.cn/product/searchProducts",
new String[]{"keywords", "page","sort"}, new String[]{keywords, page,sort});
try {
Gson gson = new Gson();
Type type = new TypeToken<Result<List<Goods>>>() {
}.getType();
Result result = gson.fromJson(resultString, type);
return result;
} catch (Exception e) {
}
Result result = new Result();
result.setCode(-1);
result.setMsg("数据解析异常");
return result;
}
}
P层在presenter包里写
GoodsListPresenter
public class GoodsListPresenter extends BasePresenter {
private int page=1;
private boolean isRefresh=true;
private String sort=0+"";
public GoodsListPresenter(DataCall dataCall) {
super(dataCall);
}
@Override
protected Result getData(Object... args) {
isRefresh = (boolean) args[0];
if (isRefresh){
page = 1;
}else{
page++;
}
Result result = GoodsListModel.goodsList((String)args[1],page+"",sort);
return result;
}
public boolean isResresh(){
return isRefresh;
}
}
把图库，颜色库导入
写主界面布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".activity.MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:focusable="true"
android:focusableInTouchMode="true">
<ImageView
android:id="@+id/btn_back"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:padding="15dp"
android:src="@drawable/btn_back" />
<ImageView
android:id="@+id/btn_layout"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentRight="true"
android:padding="15dp"
android:src="@drawable/even_city_draw" />
<EditText
android:id="@+id/edit_keywords"
android:layout_width="match_parent"
android:layout_height="36dp"
android:layout_centerVertical="true"
android:layout_toLeftOf="@+id/btn_layout"
android:layout_toRightOf="@+id/btn_back"
android:background="@drawable/search_edit_bg"
android:hint="搜索"
android:text="手机"
android:paddingLeft="40dp"
android:singleLine="true"
android:textColorHint="@color/grayblack"
android:textColor="@color/custom_gray"
android:layout_marginRight="5dp"
android:textSize="16sp" />
<ImageView
android:id="@+id/btn_search"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignLeft="@+id/edit_keywords"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:src="@android:drawable/ic_search_category_default" />
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignRight="@+id/edit_keywords"
android:layout_centerVertical="true"
android:layout_marginRight="10dp"
android:src="@drawable/person_list_sound_up" />
</RelativeLayout>
<ImageView
android:layout_width="match_parent"
android:layout_height="1dp"
android:src="@android:color/darker_gray" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<TextView
android:id="@+id/cate_text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:textColor="@color/set_font_color"
android:gravity="center"
android:textSize="14sp"
android:text="综合▲">
</TextView>
<TextView
android:id="@+id/cate_text2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:textColor="@color/set_font_color"
android:gravity="center"
android:textSize="14sp"
android:text="价格▲">
</TextView>
<TextView
android:id="@+id/cate_text3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:textColor="@color/set_font_color"
android:gravity="center"
android:textSize="14sp"
android:text="销量▲">
</TextView>
<TextView
android:id="@+id/cate_text4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:textColor="@color/set_font_color"
android:gravity="center"
android:textSize="14sp"
android:text="筛选▲">
</TextView>
</LinearLayout>
<ImageView
android:layout_width="match_parent"
android:layout_height="1dp"
android:src="@android:color/darker_gray" />
<com.jcodecraeer.xrecyclerview.XRecyclerView
android:id="@+id/list_goods"
android:layout_width="match_parent"
android:layout_height="match_parent">
</com.jcodecraeer.xrecyclerview.XRecyclerView>
</LinearLayout>
@drawable/search_edit_bg
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="20dp" />
<solid
android:color="#d8d8d8"></solid>
</shape>
列表布局
<?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="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:minHeight="50dp"
android:src="@mipmap/ic_launcher"/>
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="aa"
android:padding="10dp"/>
</LinearLayout>
线性布局
<?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="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/image"
android:layout_margin="10dp"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:minHeight="50dp"
android:src="@mipmap/ic_launcher"/>
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="aa"
android:padding="10dp"/>
</LinearLayout>
在adapter包写适配器
GoodsListAdapter
public class GoodsListAdapter extends RecyclerView.Adapter<GoodsListAdapter.GoodsHodler> {
private List<Goods> mList = new ArrayList<>();
private Context context;
public final static int LINEAR_TYPE = 0;
public final static int GRID_TYPE = 1;
private int viewType = LINEAR_TYPE;
private OnItemClickListener onItemClickListener;
public GoodsListAdapter(Context context) {
this.context = context;
}
@Override
public int getItemViewType(int position) {
return viewType;
}
public void setViewType(int viewType) {
this.viewType = viewType;
}
@NonNull
@Override
public GoodsHodler onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {
View view = null;
if (viewType == LINEAR_TYPE) {
view = View.inflate(viewGroup.getContext(), R.layout.goods_linear_item, null);
} else {
view = View.inflate(viewGroup.getContext(), R.layout.goods_grid_item, null);
}
GoodsHodler goodsHodler = new GoodsHodler(view);
return goodsHodler;
}
@Override
public void onBindViewHolder(@NonNull GoodsHodler goodsHodler, int position) {
final Goods goods = mList.get(position)；
goodsHodler.itemView.setTag(mList.get(position));
goodsHodler.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(context,WebActivity.class);
intent.putExtra("url",goods.getDetailUrl());
context.startActivity(intent);
}
});
goodsHodler.text.setText(goods.getTitle());
String imageurl = "https" + goods.getImages().split("https")[1];
Log.i("dt", "imageUrl: " + imageurl);
imageurl = imageurl.substring(0, imageurl.lastIndexOf(".jpg") + ".jpg".length());
Glide.with(context).load(imageurl).into(goodsHodler.imageView);
}
public static void main(String[] args) {
String aa = "a111a222a333a";
String[] b = aa.split("a");
System.out.println(b[0]);
}
@Override
public int getItemCount() {
return mList.size();
}
public void addAll(List<Goods> data) {
if (data != null) {
mList.addAll(data);
}
}
public void clearList() {
mList.clear();
}
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
class GoodsHodler extends RecyclerView.ViewHolder {
TextView text;
ImageView imageView;
public GoodsHodler(@NonNull View itemView) {
super(itemView);
text = itemView.findViewById(R.id.text);
imageView = itemView.findViewById(R.id.image);
}
}
public interface OnItemClickListener {
void onItemClick(Goods goods);
}
}
主界面MainActivity
MainActivity
public class MainActivity extends AppCompatActivity implements XRecyclerView.LoadingListener,
DataCall<List<Goods>>, View.OnClickListener,GoodsListAdapter.OnItemClickListener {
private XRecyclerView mRecyclerView;
private GoodsListAdapter mAdapter;
private LinearLayoutManager mLinearManager;
private GridLayoutManager mGridManager;
private static final int GRID_LAYOUT_MANAGER = 1;
private static final int LINEAR_LAYOUT_MANAGER = 2;
private ImageView mBtnLayout;
private EditText mKeywordsEdit;
private int sort;
private GoodsListPresenter mPresenter;
private TextView t1;
private TextView t2;
private TextView t3;
private TextView t4;
private String keywords;
private List<Goods> lists = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
t1 = findViewById(R.id.cate_text1);
t2 = findViewById(R.id.cate_text2);
t3 = findViewById(R.id.cate_text3);
t4 = findViewById(R.id.cate_text4);
t1.setOnClickListener(this);
t2.setOnClickListener(this);
t3.setOnClickListener(this);
t4.setOnClickListener(this);
mKeywordsEdit = findViewById(R.id.edit_keywords);
mBtnLayout = findViewById(R.id.btn_layout);
findViewById(R.id.btn_search).setOnClickListener(this);
mBtnLayout.setOnClickListener(this);
mRecyclerView = findViewById(R.id.list_goods);
mRecyclerView.setLoadingListener(this);
mPresenter = new GoodsListPresenter(this);
keywords = mKeywordsEdit.getText().toString();
mPresenter.requestData(true, keywords,sort+"");
mGridManager = new GridLayoutManager(this, 2,
GridLayoutManager.VERTICAL, false);//网格布局
mLinearManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);//线性布局
mRecyclerView.setLayoutManager(mLinearManager);
mAdapter = new GoodsListAdapter(this);
mAdapter.setOnItemClickListener(this);
mRecyclerView.setAdapter(mAdapter);
//加载数据
mRecyclerView.refresh();//刷新
}
@Override
public void onRefresh() {
keywords = mKeywordsEdit.getText().toString();
mPresenter.requestData(true, keywords,sort+"");
}
@Override
public void onLoadMore() {
keywords = mKeywordsEdit.getText().toString();
mPresenter.requestData(false, keywords,sort+"");
}
@Override
public void success(List<Goods> data) {
mRecyclerView.refreshComplete();//结束刷新
mRecyclerView.loadMoreComplete();//结束加载更多
if (mPresenter.isResresh()) {
mAdapter.clearList();
}
mAdapter.addAll(data);
mAdapter.notifyDataSetChanged();
}
@Override
public void fail(Result result) {
mRecyclerView.refreshComplete();
mRecyclerView.loadMoreComplete();
Toast.makeText(this, result.getCode() + " " + result.getMsg(),
Toast.LENGTH_LONG).show();
}
@Override
public void onDestroy() {
super.onDestroy();
mPresenter.unBindCall();
}
private boolean isGrid = false;
@Override
public void onClick(View v) {
if (v.getId() == R.id.btn_search) {//搜索
String keywords = mKeywordsEdit.getText().toString();
mPresenter.requestData(true, keywords,sort+"");
} else if (v.getId() == R.id.btn_layout) {//切换布局
if (mRecyclerView.getLayoutManager().equals(mLinearManager)) {
isGrid = true;
mAdapter.setViewType(GoodsListAdapter.GRID_TYPE);
mRecyclerView.setLayoutManager(mGridManager);
} else {
isGrid = false;
mAdapter.setViewType(GoodsListAdapter.LINEAR_TYPE);
mRecyclerView.setLayoutManager(mLinearManager);
}
mAdapter.notifyDataSetChanged();
}else{
switch (v.getId()){
case R.id.cate_text1:
sort = 0;
keywords = mKeywordsEdit.getText().toString();
Toast.makeText(MainActivity.this,"综合排序",Toast.LENGTH_SHORT).show();
mPresenter.requestData(true, keywords,sort+"");
break;
case R.id.cate_text2:
sort = 1;
keywords = mKeywordsEdit.getText().toString();
Toast.makeText(MainActivity.this,"价格排序",Toast.LENGTH_SHORT).show();
mPresenter.requestData(true, keywords,sort+"");
break;
case R.id.cate_text3:
sort = 2;
keywords = mKeywordsEdit.getText().toString();
Toast.makeText(MainActivity.this,"销量排序",Toast.LENGTH_SHORT).show();
mPresenter.requestData(true, keywords,sort+"");
break;
}
mAdapter.notifyDataSetChanged();
}
}
@Override
public void onItemClick(Goods goods) {
Intent intent = new Intent(this,WebActivity.class);
intent.putExtra("url",goods.getDetailUrl());
startActivity(intent);
}
}
WebView布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<WebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
WebActivity
public class WebActivity extends AppCompatActivity {
WebView mWebView;
@SuppressLint("JavascriptInterface")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web);
mWebView = (WebView) findViewById(R.id.webview);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
String url = getIntent().getStringExtra("url");
Log.i("dt", url);
mWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
return false;
}
});
mWebView.setWebChromeClient(new WebChromeClient());
}
}