android动态刷新主页,Android手把手教大家制作APP首页（下拉刷新、自动加载）

一、概述

作为一名三年Android开发经验的程序员，今天和大家一起实战一款APP的首页功能，这个首页在我们平时接触中还是很常见的，虽然页面简单，但是里面涉及的功能点还是挺多的。代码如有不足的还望各路同仁指点一二。

页面中使用的开发库：

整个首页架构使用的是LRecyclerView，包含下拉刷新和自动加载功能

compile 'com.github.jdsjlzx:LRecyclerView:1.3.3'

无限循环轮播图使用的是convenientbanner，效果还是很顺畅的，还可以根据自己的需要修改过渡动画

compile 'com.bigkoo:convenientbanner:2.0.5'

图片加载使用的是glide图片库，里面的方法是自己封装的

网络请求依赖是okhttp，使用的开源库okgo

compile 'com.lzy.net:okgo:2.1.4'

其他的还是九宫格图

compile 'com.lzy.widget:ninegridview:0.2.0'

自动注解butterknife库等等

二、实现效果图

1.首页展示轮播图

2.下拉刷新

3.自动加载

4.cardview水波纹动画

三、核心代码

LRecyclerView作为主框架，轮播图以及分类网格列表作为header放在index_header.xml布局文件下。

IndexFragment.java

package com.czhappy.commonindexdemo.fragment;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.view.ViewPager;

import android.support.v7.widget.LinearLayoutManager;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.TextView;

import com.bigkoo.convenientbanner.ConvenientBanner;

import com.bigkoo.convenientbanner.holder.CBViewHolderCreator;

import com.czhappy.commonindexdemo.KuaiZhiApplication;

import com.czhappy.commonindexdemo.R;

import com.czhappy.commonindexdemo.adapter.CampaignListAdapter;

import com.czhappy.commonindexdemo.adapter.ClassflyListAdapter;

import com.czhappy.commonindexdemo.jsonparse.JSONObject;

import com.czhappy.commonindexdemo.jsonparse.ReflectUtil;

import com.czhappy.commonindexdemo.model.CampaignList;

import com.czhappy.commonindexdemo.model.Classfly;

import com.czhappy.commonindexdemo.model.IndexBanner;

import com.czhappy.commonindexdemo.model.IndexBannerList;

import com.czhappy.commonindexdemo.okhttp.LoadingDialogCallback;

import com.czhappy.commonindexdemo.utils.AccordionTransformer;

import com.czhappy.commonindexdemo.utils.Api;

import com.czhappy.commonindexdemo.utils.NetworkImageHolderView;

import com.czhappy.commonindexdemo.utils.ToastUtil;

import com.czhappy.commonindexdemo.view.GridViewForScrollView;

import com.github.jdsjlzx.interfaces.OnLoadMoreListener;

import com.github.jdsjlzx.interfaces.OnRefreshListener;

import com.github.jdsjlzx.recyclerview.LRecyclerView;

import com.github.jdsjlzx.recyclerview.LRecyclerViewAdapter;

import com.github.jdsjlzx.recyclerview.ProgressStyle;

import com.lzy.okgo.OkGo;

import java.util.ArrayList;

import java.util.List;

import butterknife.BindView;

import butterknife.ButterKnife;

import okhttp3.Call;

import okhttp3.Response;

/**

* Description:

* User: chenzheng

* Date: 2016/9/9 0009

* Time: 17:18

*/

public class IndexFragment extends Fragment implements ViewPager.OnPageChangeListener{

@BindView(R.id.back_iv)

ImageView backIv;

@BindView(R.id.layout_back)

LinearLayout layoutBack;

@BindView(R.id.title_tv)

TextView titleTv;

@BindView(R.id.right_tv)

TextView rightTv;

@BindView(R.id.layout_right)

LinearLayout layoutRight;

@BindView(R.id.campaign_recyclerview)

LRecyclerView mRecyclerView;

private View mView;

private GridViewForScrollView classflyGridview;

private LinearLayout pointGroup;;

private ConvenientBanner convenientBanner;

private TextView bannerTitleTv;;

private List networkImages = new ArrayList();

private int lastPosition = 0;

private CampaignListAdapter campaignListAdapter;

private ClassflyListAdapter classflyListAdapter;

private IndexBannerList indexBannerList;

private CampaignList campaignList;

private LRecyclerViewAdapter mLRecyclerViewAdapter;

public int pageNum = 1;

public int pageSize = 4;

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

mView = inflater.inflate(R.layout.fragment_index, container,

false);

ButterKnife.bind(this, mView);

initView();

initClassfly();

return mView;

}

private void initView() {

backIv.setVisibility(View.GONE);

titleTv.setText("快知网");

layoutRight.setVisibility(View.INVISIBLE);

campaignListAdapter = new CampaignListAdapter(getActivity());

mLRecyclerViewAdapter = new LRecyclerViewAdapter(campaignListAdapter);

mRecyclerView.setAdapter(mLRecyclerViewAdapter);

mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

mRecyclerView.setRefreshProgressStyle(ProgressStyle.LineSpinFadeLoader);

mRecyclerView.setArrowImageView(R.drawable.ic_pulltorefresh_arrow);

mRecyclerView.setLoadingMoreProgressStyle(ProgressStyle.BallSpinFadeLoader);

//add a HeaderView

final View header = LayoutInflater.from(getActivity()).inflate(R.layout.index_header,(ViewGroup)mView.findViewById(android