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XRecyclerView实现下拉刷新、滚动到底部加载更多等功能

程序员文章站 2023-11-27 15:39:58
介绍: 一个实现了下拉刷新,滚动到底部加载更多以及添加header功能的的recyclerview。使用方式和recyclerview完全一致,不需要额外的layout,...

介绍:
一个实现了下拉刷新,滚动到底部加载更多以及添加header功能的的recyclerview。使用方式和recyclerview完全一致,不需要额外的layout,不需要写特殊的adater。 加载效果内置了avloadingindicatorview上的所有效果,可以根据需要指定。

项目地址:https://github.com/jianghejie/xrecyclerview

效果:

XRecyclerView实现下拉刷新、滚动到底部加载更多等功能

使用:

xml

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".mainactivity">


<com.jcodecraeer.xrecyclerview.xrecyclerview
android:id="@+id/recyclerview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />

</relativelayout>

2.mainactivity

package com.example.xrecyclerview;
 
import android.os.bundle;
import android.os.handler;
import android.support.v7.app.appcompatactivity;
import android.support.v7.widget.linearlayoutmanager;
import android.view.layoutinflater;
import android.view.menu;
import android.view.menuitem;
import android.view.view;
import android.view.viewgroup;
import com.jcodecraeer.xrecyclerview.progressstyle;
import com.jcodecraeer.xrecyclerview.xrecyclerview;
import java.util.arraylist;
 

public class mainactivity extends appcompatactivity {
private xrecyclerview mrecyclerview;
private myadapter madapter;
private arraylist<string> listdata;
private int refreshtime = 0;
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
mrecyclerview = (xrecyclerview)this.findviewbyid(r.id.recyclerview);
linearlayoutmanager layoutmanager = new linearlayoutmanager(this);
layoutmanager.setorientation(linearlayoutmanager.vertical);
mrecyclerview.setlayoutmanager(layoutmanager);

mrecyclerview.setrefreshprogressstyle(progressstyle.ballspinfadeloader);
mrecyclerview.setlaodingmoreprogressstyle(progressstyle.pacman);
mrecyclerview.setarrowimageview(r.drawable.iconfont_downgrey);


view header = layoutinflater.from(this).inflate(r.layout.recyclerview_header, (viewgroup)findviewbyid(android.r.id.content),false);
mrecyclerview.addheaderview(header);


mrecyclerview.setloadinglistener(new xrecyclerview.loadinglistener() {
@override
public void onrefresh() {
refreshtime ++;
new handler().postdelayed(new runnable(){
public void run() {
listdata.clear();
for(int i = 0; i < 15 ;i++){
listdata.add("item" + i + "after " + refreshtime + " times of refresh");
}
madapter.notifydatasetchanged();
mrecyclerview.refreshcomplete();
}
}, 3000);   //refresh data here
}
 
@override
public void onloadmore() {
new handler().postdelayed(new runnable(){
public void run() {
for(int i = 0; i < 15 ;i++){
listdata.add("item" + (i + listdata.size()) );
}
madapter.notifydatasetchanged();
mrecyclerview.loadmorecomplete();
}
}, 3000);
 
}

});
 
listdata = new arraylist<string>();
madapter = new myadapter(listdata);
for(int i = 0; i < 15 ;i++){
listdata.add("item" + i);
}
mrecyclerview.setadapter(madapter);
}


@override
public boolean oncreateoptionsmenu(menu menu) {
// inflate the menu; this adds items to the action bar if it is present.
getmenuinflater().inflate(r.menu.menu_main, menu);
return true;
}
 
@override
public boolean onoptionsitemselected(menuitem item) {
// handle action bar item clicks here. the action bar will
// automatically handle clicks on the home/up button, so long
// as you specify a parent activity in androidmanifest.xml.
int id = item.getitemid();




//noinspection simplifiableifstatement

if (id == r.id.action_settings) {
return true;
}
 
return super.onoptionsitemselected(item);
}
 
 
}

3. adapter

package com.example.xrecyclerview;


import android.support.v7.widget.recyclerview;
import android.view.layoutinflater;
import android.view.view;
import android.view.viewgroup;
import android.widget.textview;
import java.util.arraylist;

/**
* created by jianghejie on 15/11/26.
*/
public class myadapter extends recyclerview.adapter<myadapter.viewholder> {
public arraylist<string> datas = null;
public myadapter(arraylist<string> datas) {
this.datas = datas;
}
//创建新view,被layoutmanager所调用
@override
public viewholder oncreateviewholder(viewgroup viewgroup, int viewtype) {
view view = layoutinflater.from(viewgroup.getcontext()).inflate(r.layout.item,viewgroup,false);
viewholder vh = new viewholder(view);
return vh;
}
//将数据与界面进行绑定的操作
@override
public void onbindviewholder(viewholder viewholder, int position) {
viewholder.mtextview.settext(datas.get(position));
}
//获取数据的数量
@override
public int getitemcount() {
return datas.size();
}
//自定义的viewholder,持有每个item的的所有界面元素
public static class viewholder extends recyclerview.viewholder {
public textview mtextview;
public viewholder(view view){
super(view);

mtextview = (textview) view.findviewbyid(r.id.text);
}


}

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