MVPXlistView展示上拉下拉效果
本文实例为大家分享了MVPXlistView上拉下拉展示的具体代码，供大家参考，具体内容如下
抽基类
packagecom.gs.gg.day8.back;
importandroid.os.Bundle;
importandroid.support.annotation.Nullable;
importandroid.support.v7.app.AppCompatActivity;
publicabstractclassBackActivityextendsAppCompatActivity{
@Override
protectedvoidonCreate(@NullableBundlesavedInstanceState){
super.onCreate(savedInstanceState);
init();
}
protectedabstractintgetLayout();
protectedabstractvoidinitViews();
protectedabstractvoidsetOnClick();
protectedabstractvoidprocessLogic();
voidinit(){
if(getLayout()!=0){
setContentView(getLayout());
initViews();
setOnClick();
processLogic();
}else{
thrownewIllegalStateException("请加载布局文件");
}
}
}
Model
packagecom.gs.gg.day8.model;
importcom.gs.gg.day8.callbase.MyCallBase;
publicinterfaceModel{
voidgetData(StringmUrl,Stringparants,MyCallBasecallBase);
}
MyCallBase
packagecom.gs.gg.day8.callbase;
importcom.gs.gg.day8.bean.User;
publicinterfaceMyCallBase{
voidsetData(Userdata);
voidsetError(Stringerror);
}
Modelimpl
packagecom.gs.gg.day8.model;
importandroid.os.Handler;
importandroid.os.Looper;
importandroid.os.Message;
importcom.google.gson.Gson;
importcom.gs.gg.day8.R;
importcom.gs.gg.day8.bean.User;
importcom.gs.gg.day8.callbase.MyCallBase;
importcom.gs.gg.day8.util.HttpUtils;
importjava.net.URL;
publicclassModelimplimplementsModel{
privateHandlerhandler=newHandler(){
@Override
publicvoidhandleMessage(Messagemsg){
super.handleMessage(msg);
StringJsonStr=(String)msg.obj;
Gsongson=newGson();
Useruser=gson.fromJson(JsonStr,User.class);
callBase.setData(user);
}
};
privateMyCallBasecallBase;
@Override
publicvoidgetData(finalStringmUrl,Stringparants,finalMyCallBasecallBase){
this.callBase=callBase;
newThread(newRunnable(){
@Override
publicvoidrun(){
try{
Stringjson=HttpUtils.get(mUrl);
handler.sendMessage(handler.obtainMessage(0,json));
}catch(Exceptione){
Looper.prepare();
callBase.setError("异常");
Looper.loop();
}
}
}).start();
}
}
HttpUtils
packagecom.gs.gg.day8.util;
importjava.io.BufferedReader;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.InputStreamReader;
importjava.net.HttpURLConnection;
importjava.net.URL;
publicclassHttpUtils{
publicstaticStringget(StringmUrl)throwsException{
URLurl=newURL(mUrl);
HttpURLConnectionconnection=(HttpURLConnection)url.openConnection();
//设置请求方式
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
InputStreamstream=connection.getInputStream();
StringinputStr=getInputStr(stream);
returninputStr;
}
//把流转成字符串
privatestaticStringgetInputStr(InputStreamstream)throwsIOException{
BufferedReaderbr=newBufferedReader(newInputStreamReader(stream));
StringBuffersb=newStringBuffer();
Stringstr=null;
while((str=br.readLine())!=null){
sb.append(str);
}
returnsb.toString();
}
}
IView
packagecom.gs.gg.day8.view;
importcom.gs.gg.day8.bean.User;
publicinterfaceIView{
voidsuccess(Userdata);
voiderror(Stringerror);
}
Presenter
packagecom.gs.gg.day8.presenter;
publicinterfacePresenter{
voidstartReponse(Stringurl,Stringparants);
}
PresenterImpl
packagecom.gs.gg.day8.presenter;
importcom.gs.gg.day8.bean.User;
importcom.gs.gg.day8.callbase.MyCallBase;
importcom.gs.gg.day8.model.Modelimpl;
importcom.gs.gg.day8.view.IView;
publicclassPresenterImplimplementsPresenter{
privateIViewiView;
privateModelimplmodel;
publicPresenterImpl(IViewiView){
this.iView=iView;
model=newModelimpl();
}
@Override
publicvoidstartReponse(StringmUrl,Stringparants){
model.getData(mUrl,parants,newMyCallBase(){
@Override
publicvoidsetData(Userdata){
iView.success(data);
}
@Override
publicvoidsetError(Stringerror){
iView.error(error);
}
});
}
publicvoidonDotch(){
if(iView!=null){
iView=null;
}
if(model!=null){
model=null;
}
}
}
MainActivity
packagecom.gs.gg.day8;
importandroid.widget.Toast;
importcom.gs.gg.day8.adapter.MyAdapter;
importcom.gs.gg.day8.back.BackActivity;
importcom.gs.gg.day8.bean.User;
importcom.gs.gg.day8.presenter.PresenterImpl;
importcom.gs.gg.day8.view.IView;
importcom.gs.gg.myxlist.me.maxwin.view.XListView;
importjava.util.ArrayList;
publicclassMainActivityextendsBackActivityimplementsIView,XListView.IXListViewListener{
privateXListViewxlist_item;
privatePresenterImplpresenter;
privateArrayListmlist=newArrayList<>();
privateStringmuUrl="http://www.xieast.com/api/news/news.php?page=";
privateinti=1;
privateMyAdapteradapter;
@Override
protectedintgetLayout(){
returnR.layout.activity_main;
}
@Override
protectedvoidinitViews(){
xlist_item=findViewById(R.id.Xlist_item);
}
@Override
protectedvoidsetOnClick(){
xlist_item.setPullLoadEnable(true);
xlist_item.setXListViewListener(this);
}
@Override
protectedvoidprocessLogic(){
presenter=newPresenterImpl(this);
adapter=newMyAdapter(MainActivity.this,mlist);
xlist_item.setAdapter(adapter);
presenter.startReponse(muUrl+i,null);
}
@Override
publicvoidsuccess(Userdata){
mlist.addAll(data.getData());
adapter.notifyDataSetChanged();
stop();
}
@Override
publicvoiderror(Stringerror){
Toast.makeText(this,"异常",Toast.LENGTH_SHORT).show();
}
privatevoidstop(){
xlist_item.stopRefresh();
xlist_item.stopLoadMore();
}
@Override
publicvoidonRefresh(){
i=1;
mlist.clear();
presenter.startReponse(muUrl+i,null);
}
@Override
publicvoidonLoadMore(){
i++;
presenter.startReponse(muUrl+i,null);
}
}
MyAdapter
packagecom.gs.gg.day8.adapter;
importandroid.content.Context;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.BaseAdapter;
importandroid.widget.ImageView;
importandroid.widget.TextView;
importcom.gs.gg.day8.R;
importcom.gs.gg.day8.bean.User;
importcom.nostra13.universalimageloader.core.ImageLoader;
importjava.util.ArrayList;
publicclassMyAdapterextendsBaseAdapter{
publicMyAdapter(Contextcontext,ArrayListmlist){
this.context=context;
this.mlist=mlist;
}
privateContextcontext;
privateArrayListmlist;
@Override
publicintgetCount(){
returnmlist.size();
}
@Override
publicObjectgetItem(intposition){
returnmlist.get(position);
}
@Override
publiclonggetItemId(intposition){
returnposition;
}
@Override
publicViewgetView(intposition,ViewconvertView,ViewGroupparent){
HolderViewholder=null;
if(convertView==null){
convertView=View.inflate(context,R.layout.item,null);
holder=newHolderView();
holder.textName=convertView.findViewById(R.id.text);
holder.imageName=convertView.findViewById(R.id.image);
convertView.setTag(holder);
}else{
holder=(HolderView)convertView.getTag();
}
User.DataBeanbean=mlist.get(position);
holder.textName.setText(bean.getTitle());
ImageLoader.getInstance().displayImage(mlist.get(position).getThumbnail_pic_s(),holder.imageName);
returnconvertView;
}
classHolderView{
TextViewtextName;
ImageViewimageName;
}
}
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。