Fragment，侧滑菜单，PullToRefresh上下拉加载

例题：Fragment，侧滑菜单，PullToRefresh上下拉加载
右键工程>Open Module Settings>Dependencies>+号Library dependency>com.android.support:design:27.0.2

=============================================

libs文件夹下加入jar包（导包）： gson 和 universal-image-loader

=======================================

build.gradle中加入依赖（加在最下面）：

pull-to-refresh上下拉刷新控件 ：compile ‘com.github.userswlwork:pull-to-refresh:1.0.0‘

Banner无限轮播：compile ‘com.youth.banner:banner:1.4.10‘

添加之后需要点击右上角的   Sync Now   编译一下

====================================

添加权限：

网络请求权限：INTERNET
<uses-permission android:name="android.permission.INTERNET"/>
网络判断权限：ACCESS_NETWORK_STATE
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<application/>在这个控件里加入属性：android:name=".MyApp"
========================================
MyApp  类
importandroid.app.Application;
import com.example.shenhuiran_1215.utils.ImageloaderUtil;
public class MyApp  extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        ImageloaderUtil.initConfig(this);
    }
}

====================================================

Result方法：
public class Result {
json解析类
}
============================================================================

布局：

<android.support.v4.widget.DrawerLayout
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="com.example.shenhuiran_1215.MainActivity">
    <RelativeLayout
android:layout_width="260dp"
android:layout_height="match_parent"
android:background="#f00"
android:layout_gravity="start">
        <ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher"/>
    </RelativeLayout>
    <RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/rel_main">
        <RadioGroup
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="@+id/rg"
android:layout_alignParentBottom="true">
            <RadioButton
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_weight="1"
android:gravity="center"
android:checked="true"
android:id="@+id/rb_index"
android:text="上天"
android:textSize="25sp"
android:background="@drawable/rg_bj"
android:textColor="@color/text_selector"
android:button="@null"/>
            <RadioButton
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_weight="1"
android:gravity="center"
android:id="@+id/rb_my"
android:text="下地"
android:textSize="25sp"
android:background="@drawable/rg_bj"
android:textColor="@color/text_selector"
android:button="@null"/>
        </RadioGroup>
        <FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/frcontent"
android:layout_above="@id/rg"
>
        </FrameLayout>
    </RelativeLayout>
</android.support.v4.widget.DrawerLayout >

==================================================

BaseActivity 基类
importandroid.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
//基类
public abstract class BaseActivity extends AppCompatActivity {
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //设置内容视图
setContentView(getActivityLayout());
        initView();
        setListener();
        initData();
    }
    //得到activity的布局
public abstract int getActivityLayout();
    //初使化界面上的控件
public abstract void initView();
    //初使化页面中要使用到的数据
public abstract void initData();
    //设置监听事件
public abstract void setListener();
    //弹出提示
public void showTip(String  str){
        Toast.makeText(this,str,Toast.LENGTH_SHORT).show();
    }
}

==================================================

BaseFragment 基类
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public abstract class BaseFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
       //调用抽象方法，返回fragment的布局
return getFragmentView(inflater,container);
    }
    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initView();
        setListener();
        initData();
    }
    //得到fragment的视图
public abstract View getFragmentView(LayoutInflater inflater,ViewGroup container);
    public abstract void initView();
    public abstract void initData();
    public abstract void setListener();
}

==========================================================

主要代码：

importandroid.widget.RadioGroup;
import com.example.shenhuiran_1215.base.BaseActivity;
import com.example.shenhuiran_1215.fragments.IndexFragment;
import com.example.shenhuiran_1215.fragments.MyFragment;

public class MainActivity extends BaseActivity {
    private RadioGroup radioGroup;
    @Override
    public int getActivityLayout() {
        return R.layout.activity_main;
    }
    @Override
    public void initView() {
        radioGroup = findViewById(R.id.rg);
    }
    @Override
    public void initData() {
        //默认添加首页fragment
getSupportFragmentManager().beginTransaction().replace(R.id.frcontent,new IndexFragment()).commit();
        //调用父类中的公共方法
showTip("haha");
    }
    @Override
    public void setListener() {
        radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup radioGroup, int i) {
                switch (i){
                    case R.id.rb_index:
                        getSupportFragmentManager().beginTransaction().replace(R.id.frcontent,new IndexFragment()).commit();
                        break;
                    case R.id.rb_my:
                        getSupportFragmentManager().beginTransaction().replace(R.id.frcontent,new MyFragment()).commit();
                        break;
                }
            }
        });
    }
}
==========================================
MyFragment 类
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.shenhuiran_1215.R;
public class MyFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
       View v=inflater.inflate(R.layout.my,container,false);
        return v;
    }
    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }
}
----------------------------------------------------------
布局：随便加个背景颜色
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#00f">
</android.support.constraint.ConstraintLayout>
==============================================
IndexFragment 类
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.shenhuiran_1215.R;
import com.example.shenhuiran_1215.TabModel;
import com.example.shenhuiran_1215.base.BaseFragment;
import java.util.ArrayList;
import java.util.List;
public class IndexFragment extends BaseFragment {
    private TabLayout tabLayout;
    private ViewPager viewPager;
    //存放所有标签信息的集合列表
private List<TabModel> list;
    private View v;
    @Override
    public View getFragmentView(LayoutInflater inflater, ViewGroup container) {
        v = inflater.inflate(R.layout.index,container,false);
        return v;
    }
    @Override
    public void initView() {
        tabLayout = v.findViewById(R.id.mytab);
        viewPager = v.findViewById(R.id.vp);
    }
    @Override
    public void initData() {
        list=new ArrayList<>();
        list.add(new TabModel("北斗","xbsjxw"));
        list.add(new TabModel("天枢","txs"));
        list.add(new TabModel("天璇","toutiao"));
        list.add(new TabModel("天玑","news/mobile/jbgg"));
        list.add(new TabModel("天权","news/mobile/mgxw"));
        list.add(new TabModel("玉衡","news/mobile/ggxw"));
        list.add(new TabModel("开阳","news/mobile/jjxw"));
        list.add(new TabModel("瑶光","news/mobile/lcxw"));
        //设置适配器
viewPager.setAdapter(new MyAdapter(getChildFragmentManager()));//注意：在子fragment中，使用。。getChildFragmentManager
        //tablayout与vp进行关联
tabLayout.setupWithViewPager(viewPager);
        //一次性加载完
viewPager.setOffscreenPageLimit(list.size());
    }
    @Override
    public void setListener() {
    }
    class MyAdapter extends FragmentPagerAdapter{
        public MyAdapter(FragmentManager fm) {
            super(fm);
        }
        @Override
        public CharSequence getPageTitle(int position) {
            return list.get(position).getTitle();//返回title信息
}
        @Override
        public Fragment getItem(int position) {
            ContentFragment fragment=new ContentFragment();
            //传递type
Bundle bundle=new Bundle();
            bundle.putString("type",list.get(position).getType());
            fragment.setArguments(bundle);
            return fragment;
        }
        @Override
        public int getCount() {
            return list.size();
        }
    }
}
----------------------------------------------
布局：
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
    <android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="center"
app:tabIndicatorColor="@color/colorAccent"
app:tabMode="scrollable"
app:tabSelectedTextColor="@color/colorPrimaryDark"
app:tabTextColor="@color/colorPrimary"
android:id="@+id/mytab"></android.support.design.widget.TabLayout>
    <android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/vp"
android:layout_below="@+id/mytab"></android.support.v4.view.ViewPager>
</RelativeLayout>
===============================================
importandroid.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.shenhuiran_1215.R;
import com.example.shenhuiran_1215.bean.Result;
import com.example.shenhuiran_1215.utils.ImageloaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
public class MyAdapter extends BaseAdapter {
    private Context context;
    private List<Result.DataBean> data;
    private final  int LEFT_IMAGE=0;
    private final  int RIGHT_IMAGE=1;
    public MyAdapter(Context context, List<Result.DataBean> data) {
        this.context = context;
        this.data = data;
    }
    @Override
    public int getCount() {
        return data.size();
    }
    @Override
    public int getViewTypeCount() {
        return 2;
    }
    @Override
    public int getItemViewType(int position) {
        if(position%2==0){
            return RIGHT_IMAGE;
        }else {
            return LEFT_IMAGE;
        }
    }
    @Override
    public Object getItem(int i) {
        return null;
    }
    @Override
    public long getItemId(int i) {
        return 0;
    }
    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        //根据下标得到类型
int itemType = getItemViewType(i);
        if(itemType==LEFT_IMAGE){
            ViewHolder holder;
            if(view==null){
                view=View.inflate(context, R.layout.item_left,null);
                holder=new ViewHolder();
                holder.imageView=view.findViewById(R.id.img);
                holder.textView=view.findViewById(R.id.tv);
                view.setTag(holder);
            }else {
                holder=(ViewHolder) view.getTag();
            }
            holder.textView.setText(data.get(i).getTitle());
            String imgurl=data.get(i).getImg();
            if(!"".equals(imgurl) && imgurl!=null){
                ImageLoader.getInstance().displayImage(imgurl,holder.imageView, ImageloaderUtil.getImageOptions());
            }
            return  view;
        }else {
            ViewHolder holder;
            if(view==null){
                view=View.inflate(context, R.layout.item_right,null);
                holder=new ViewHolder();
                holder.imageView=view.findViewById(R.id.img);
                holder.textView=view.findViewById(R.id.tv);
                view.setTag(holder);
            }else {
                holder=(ViewHolder) view.getTag();
            }
            holder.textView.setText(data.get(i).getTitle());
            String imgurl=data.get(i).getImg();
            if(!"".equals(imgurl) && imgurl!=null){
                ImageLoader.getInstance().displayImage(imgurl,holder.imageView, ImageloaderUtil.getImageOptions());
            }
            return  view;
        }
    }
    class ViewHolder{
        ImageView imageView;
        TextView textView;
    }
}
-------------------------------------------------

两个布局：

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
    <ImageView
android:layout_width="80dp"
android:layout_height="80dp"
android:src="@mipmap/ic_launcher"
android:id="@+id/img"/>
    <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv"
android:layout_toRightOf="@+id/img"/>
</RelativeLayout>

---------------------------------------

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
    <ImageView
android:layout_width="80dp"
android:layout_height="80dp"
android:src="@mipmap/ic_launcher"
android:id="@+id/img"
android:layout_alignParentRight="true"/>
    <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv"
android:layout_toLeftOf="@+id/img"/>
</RelativeLayout>

============================================================

ContentFragment 类
importandroid.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import com.example.shenhuiran_1215.R;
import com.example.shenhuiran_1215.adapter.MyAdapter;
import com.example.shenhuiran_1215.bean.Result;
import com.example.shenhuiran_1215.utils.MyTask;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
public class ContentFragment extends Fragment {
    private PullToRefreshListView plv;
    private String type="";
    private String preUrl="http://mnews.gw.com.cn/wap/data/news/";
    private int pageIndex=1;
    private String nextUrl;
    private String url;
    private MyAdapter adapter;
    private  List<Result.DataBean> data;
    private int operType=1;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v=inflater.inflate(R.layout.content,container,false);
        plv = v.findViewById(R.id.plv);
        data=new ArrayList<>();
        //接收参数
Bundle arguments = getArguments();
        if(arguments!=null){
           type=arguments.getString("type");
           //进行url地址的拼接
nextUrl="/page_"+pageIndex+".json";
           url=preUrl+type+nextUrl;
        }
        return v;
    }
    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initPlv();
        requestNetData();
    }
    private void requestNetData() {
        //请求网络数据
MyTask myTask=new MyTask(new MyTask.Icallbacks() {
            @Override
            public void updateUiByjson(String jsonstr) {
                List<Result> list=new ArrayList<>();
                //得到集合类型
Type t=new TypeToken<List<Result>>(){}.getType();
                Gson gson=new Gson();
                list=gson.fromJson(jsonstr,t);
                //取得显示的数据
Result data1 = list.get(0);
                if(operType==1){
                    data.clear();
                }
                data.addAll(data1.getData());
                //创建适配器
setAdapter();
                plv.onRefreshComplete();
            }
        });
        myTask.execute(url);
    }
    public void setAdapter(){
        if(adapter==null){
            adapter=new MyAdapter(getActivity(),data);
            plv.setAdapter(adapter);
        }else {
            adapter.notifyDataSetChanged();
        }
    }
    //初使化
private void initPlv() {
        plv.setMode(PullToRefreshBase.Mode.BOTH);
        plv.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
                pageIndex=1;
                nextUrl="/page_"+pageIndex+".json";
                url=preUrl+type+nextUrl;
                operType=1;
                requestNetData();
            }
            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
                pageIndex++;
                nextUrl="/page_"+pageIndex+".json";
                url=preUrl+type+nextUrl;
                operType=2;
                requestNetData();
            }
        });
    }
}

-----------------------------------------

布局：
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent">
    <com.handmark.pulltorefresh.library.PullToRefreshListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/plv"></com.handmark.pulltorefresh.library.PullToRefreshListView>
</android.support.constraint.ConstraintLayout>
==============================================================
TabModel 封装类
public class TabModel {
    private String title;
    private String type;
有参方法
get set方法

}

时间： 2024-10-14 00:14:52

Fragment，侧滑菜单，PullToRefresh上下拉加载的相关文章

Android项目：使用pulltorefresh开源项目扩展为下拉刷新上拉加载更多的处理方法，监听listview滚动方向

很多android应用的下拉刷新都是使用的pulltorefresh这个开源项目,但是它的扩展性在下拉刷新同时又上拉加载更多时会有一定的局限性.查了很多地方,发现这个开源项目并不能很好的同时支持下拉刷新和上拉加载更多.这个组件有个mode的属性,可以设置为both,即上下同时都可拉动.但是只设置这个属性的话,上拉与下拉产生的效果是完全一致的.所以要使用这个开源项目做到下拉刷新并同时可上拉加载更多,就需要在代码中进行一些处理. ==========================pulltoref

使用PullToRefresh实现下拉刷新和上拉加载

使用PullToRefresh实现下拉刷新和上拉加载 分类: Android2013-12-20 15:51 78158人阅读 评论(91) 收藏 举报 Android下拉刷新上拉加载PullToRefresh PullToRefresh是一套实现非常好的下拉刷新库,它支持: 1.ListView 2.ExpandableListView 3.GridView 4.WebView 等多种常用的需要刷新的View类型,而且使用起来也十分方便. (下载地址:https://github.com/ch

android ListView上拉加载更多 下拉刷新功能实现（采用pull-to-refresh）

Android实现上拉加载更多功能以及下拉刷新功能, 采用了目前比较火的PullToRefresh,他是目前实现比较好的下拉刷新的类库. 目前他支持的控件有:ListView, ExpandableListView,GridView,WebView等. 下载地址:https://github.com/chrisbanes/Android-PullToRefresh 首先第一步当然是导入libriay到咱们的项目了,具体导入方式,这里不再赘述. 下面是个例子采用的是ListView,当然其余的和这

【PullToRefresh 系列一】 Android上拉加载下拉刷新控件详解

转载请注明:http://blog.csdn.net/duguang77/article/details/40921601 作者信息: PullToRefresh控件下载地址:https://github.com/chrisbanes/Android-PullToRefresh 作者:https://github.com/chrisbanes 百度网盘下载地址:http://pan.baidu.com/s/1o6umifw (一)导入方法: 1.下载后将extras,library,sample

Android 使用PullToRefresh实现下拉刷新和上拉加载(ExpandableListView)

PullToRefresh是一套实现非常好的下拉刷新库,它支持: 1.ListView 2.ExpandableListView 3.GridView 4.WebView 等多种常用的需要刷新的View类型,而且使用起来也十分方便. (下载地址:https://github.com/chrisbanes/Android-PullToRefresh) 下载完成,将它导入到eclipse中,作为一个library导入到你的工程中就好了. 一.废话少说,下拉刷新Go. 1.在你的布局文件中加上你想用的

PullToRefresh实现下拉刷新和上拉加载

一.导入Library 下载源码后(https://github.com/chrisbanes/Android-PullToRefresh),里面有个Library工程,添加工程到Eclipse中: 二.导入项目 1.新建工程后,右键->Properties->Android->Add 选择上面的Library 2.main_activity.xml <?xml version="1.0" encoding="utf-8"?> <

android Fragment 实例 Listfragment listiew 下拉刷新 上拉加载 横向滑动事件监听

Android Fragment开发实例及他色功能说明 代码太长,请网盘下载附件源代码: http://yunpan.cn/cs24a2Z7C5kRk (提取码:a0cf)  有疑问的欢迎联系QQ972910164 一. CustomListView说明:可下拉刷新,上拉加载,横向滑动接口回调, /** * 功能类似ListView,天机以下特性: * 1. 可下拉刷新,上拉加载,实现CustomListView.OnPullListener接口 * 3. Slide切换,实现CustomLis

【框架】PullToRefresh下拉刷新上拉加载

<com.handmark.pulltorefresh.library.PullToRefreshListView android:id="@+id/lv" android:layout_width="match_parent" android:layout_height="match_parent"></com.handmark.pulltorefresh.library.PullToRefreshListView> p

上拉刷新下拉加载控件-PullToRefresh

在很多软件中,我们会用到上拉刷新,同时大多也会有下拉加载的功能,PullToRefresh这个控件就可以帮我们实现这个效果. 要使用这个空间首先我们要导包 布局文件 布局文件中就是添加了一个最简单的PullToRefreshListView <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/r