MVPXlistView展示上拉下拉效果
程序员文章站
2022-08-20 16:54:27
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
package com.gs.gg.day8.back;...
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
package com.gs.gg.day8.back; import android.os.bundle; import android.support.annotation.nullable; import android.support.v7.app.appcompatactivity; public abstract class backactivity extends appcompatactivity { @override protected void oncreate(@nullable bundle savedinstancestate) { super.oncreate(savedinstancestate); init(); } protected abstract int getlayout(); protected abstract void initviews(); protected abstract void setonclick(); protected abstract void processlogic(); void init(){ if (getlayout()!=0){ setcontentview(getlayout()); initviews(); setonclick(); processlogic(); }else { throw new illegalstateexception("请加载布局文件"); } } }
model
package com.gs.gg.day8.model; import com.gs.gg.day8.callbase.mycallbase; public interface model { void getdata(string murl,string parants,mycallbase callbase); }
mycallbase
package com.gs.gg.day8.callbase; import com.gs.gg.day8.bean.user; public interface mycallbase { void setdata(user data); void seterror(string error); }
modelimpl
package com.gs.gg.day8.model; import android.os.handler; import android.os.looper; import android.os.message; import com.google.gson.gson; import com.gs.gg.day8.r; import com.gs.gg.day8.bean.user; import com.gs.gg.day8.callbase.mycallbase; import com.gs.gg.day8.util.httputils; import java.net.url; public class modelimpl implements model { private handler handler=new handler(){ @override public void handlemessage(message msg) { super.handlemessage(msg); string jsonstr= (string) msg.obj; gson gson=new gson(); user user= gson.fromjson(jsonstr,user.class); callbase.setdata(user); } }; private mycallbase callbase; @override public void getdata(final string murl, string parants, final mycallbase callbase) { this.callbase=callbase; new thread(new runnable() { @override public void run() { try { string json = httputils.get(murl); handler.sendmessage(handler.obtainmessage(0,json)); } catch (exception e) { looper.prepare(); callbase.seterror("异常"); looper.loop(); } } }).start(); } }
httputils
package com.gs.gg.day8.util; import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstream; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.url; public class httputils { public static string get(string murl) throws exception { url url=new url(murl); httpurlconnection connection = (httpurlconnection) url.openconnection(); //设置请求方式 connection.setrequestmethod("get"); connection.setconnecttimeout(5000); inputstream stream = connection.getinputstream(); string inputstr = getinputstr(stream); return inputstr; } //把流转成字符串 private static string getinputstr(inputstream stream) throws ioexception { bufferedreader br = new bufferedreader(new inputstreamreader(stream)); stringbuffer sb = new stringbuffer(); string str = null; while ((str = br.readline()) != null) { sb.append(str); } return sb.tostring(); } }
iview
package com.gs.gg.day8.view; import com.gs.gg.day8.bean.user; public interface iview { void success(user data); void error(string error); }
presenter
package com.gs.gg.day8.presenter; public interface presenter { void startreponse(string url,string parants); }
presenterimpl
package com.gs.gg.day8.presenter; import com.gs.gg.day8.bean.user; import com.gs.gg.day8.callbase.mycallbase; import com.gs.gg.day8.model.modelimpl; import com.gs.gg.day8.view.iview; public class presenterimpl implements presenter { private iview iview; private modelimpl model; public presenterimpl(iview iview) { this.iview = iview; model = new modelimpl(); } @override public void startreponse(string murl, string parants) { model.getdata(murl,parants, new mycallbase() { @override public void setdata(user data) { iview.success(data); } @override public void seterror(string error) { iview.error(error); } }); } public void ondotch(){ if (iview!=null){ iview=null; } if (model!=null){ model=null; } } }
mainactivity
package com.gs.gg.day8; import android.widget.toast; import com.gs.gg.day8.adapter.myadapter; import com.gs.gg.day8.back.backactivity; import com.gs.gg.day8.bean.user; import com.gs.gg.day8.presenter.presenterimpl; import com.gs.gg.day8.view.iview; import com.gs.gg.myxlist.me.maxwin.view.xlistview; import java.util.arraylist; public class mainactivity extends backactivity implements iview,xlistview.ixlistviewlistener { private xlistview xlist_item; private presenterimpl presenter; private arraylist<user.databean> mlist=new arraylist<>(); private string muurl="http://www.xieast.com/api/news/news.php?page="; private int i=1; private myadapter adapter; @override protected int getlayout() { return r.layout.activity_main; } @override protected void initviews() { xlist_item = findviewbyid(r.id.xlist_item); } @override protected void setonclick() { xlist_item.setpullloadenable(true); xlist_item.setxlistviewlistener(this); } @override protected void processlogic() { presenter = new presenterimpl(this); adapter = new myadapter(mainactivity.this,mlist); xlist_item.setadapter(adapter); presenter.startreponse(muurl+i, null); } @override public void success(user data) { mlist.addall(data.getdata()); adapter.notifydatasetchanged(); stop(); } @override public void error(string error) { toast.maketext(this, "异常", toast.length_short).show(); } private void stop() { xlist_item.stoprefresh(); xlist_item.stoploadmore(); } @override public void onrefresh() { i = 1; mlist.clear(); presenter.startreponse(muurl + i, null); } @override public void onloadmore() { i++; presenter.startreponse(muurl + i, null); } }
myadapter
package com.gs.gg.day8.adapter; import android.content.context; import android.view.view; import android.view.viewgroup; import android.widget.baseadapter; import android.widget.imageview; import android.widget.textview; import com.gs.gg.day8.r; import com.gs.gg.day8.bean.user; import com.nostra13.universalimageloader.core.imageloader; import java.util.arraylist; public class myadapter extends baseadapter { public myadapter(context context, arraylist<user.databean> mlist) { this.context = context; this.mlist = mlist; } private context context; private arraylist<user.databean> mlist; @override public int getcount() { return mlist.size(); } @override public object getitem(int position) { return mlist.get(position); } @override public long getitemid(int position) { return position; } @override public view getview(int position, view convertview, viewgroup parent) { holderview holder=null; if (convertview==null){ convertview= view.inflate(context, r.layout.item,null); holder=new holderview(); holder.textname=convertview.findviewbyid(r.id.text); holder.imagename=convertview.findviewbyid(r.id.image); convertview.settag(holder); }else { holder= (holderview) convertview.gettag(); } user.databean bean = mlist.get(position); holder.textname.settext(bean.gettitle()); imageloader.getinstance().displayimage(mlist.get(position).getthumbnail_pic_s(),holder.imagename); return convertview; } class holderview{ textview textname; imageview imagename; } }
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。
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