利用Android制作一个APP首页

本篇文章给大家分享的是有关利用Android制作一个APP首页，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。

首页展示

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;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<String> networkImages = new ArrayList<String>(); 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.R.id.content), false); classflyGridview = (GridViewForScrollView) header.findViewById(R.id.classfly_gridview); classflyGridview.setFocusable(false); pointGroup = (LinearLayout) header.findViewById(R.id.point_group); convenientBanner = (ConvenientBanner) header.findViewById(R.id.convenientBanner); bannerTitleTv = (TextView) header.findViewById(R.id.banner_title_tv); mLRecyclerViewAdapter.addHeaderView(header); mRecyclerView.setOnRefreshListener(new OnRefreshListener() {  @Override  public void onRefresh() {  pageNum = 1;  doRequest(pageNum, true);  requestBannerList();  } }); mRecyclerView.setOnLoadMoreListener(new OnLoadMoreListener() {  @Override  public void onLoadMore() {  pageNum++;  doRequest(pageNum, false);  } }); //设置头部加载颜色 mRecyclerView.setHeaderViewColor(R.color.colorAccent, R.color.dark ,android.R.color.white); //设置底部加载颜色 mRecyclerView.setFooterViewColor(R.color.colorAccent, R.color.dark ,android.R.color.white); //设置底部加载文字提示 mRecyclerView.setFooterViewHint("拼命加载中","已经全部为你呈现了","网络不给力啊，点击再试一次吧"); mRecyclerView.setRefreshing(true);// mLRecyclerViewAdapter.setOnItemClickListener(new OnItemClickListener() {//  @Override//  public void onItemClick(View view, int position) {////  }//// });//// mLRecyclerViewAdapter.setOnItemLongClickListener(new OnItemLongClickListener() {//  @Override//  public void onItemLongClick(View view, int position) {////  }// }); } private void initClassfly() { List<Classfly> list = new ArrayList<Classfly>(); Classfly c1 = new Classfly("3", "通知公告", R.mipmap.classfly_bg1); Classfly c2 = new Classfly("4", "教育学习", R.mipmap.classfly_bg2); Classfly c3 = new Classfly("5", "偶像明星", R.mipmap.classfly_bg3); Classfly c4 = new Classfly("6", "特价优惠", R.mipmap.classfly_bg4); Classfly c5 = new Classfly("7", "线下活动", R.mipmap.classfly_bg5); Classfly c6 = new Classfly("8", "其它", R.mipmap.classfly_bg6); list.add(c1); list.add(c2); list.add(c3); list.add(c4); list.add(c5); list.add(c6); classflyListAdapter = new ClassflyListAdapter(getActivity()); classflyGridview.setAdapter(classflyListAdapter); classflyListAdapter.setItems(list); classflyGridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {  @Override  public void onItemClick(AdapterView<&#63;> parent, View view, int position, long id) {  } }); } private void doRequest(int page, final boolean isRefresh) { OkGo.post(Api.GET_CAMPAIGN_LIST)  .tag(this)  .params("currentPage", String.valueOf(page))  .params("pageSize", String.valueOf(pageSize))  .execute(new LoadingDialogCallback(getActivity()) {   @Override   public void onSuccess(String s, Call call, Response response) {   if(isRefresh){    mRecyclerView.refreshComplete();   }else {    mRecyclerView.loadMoreComplete();   }   try {    campaignList = (CampaignList) ReflectUtil     .copy(CampaignList.class,      new JSONObject(s));   } catch (Exception e) {    e.printStackTrace();   }   if (campaignList != null) {    String result = campaignList.getResult();    if (Api.SUCCESS.equals(result)) {    int j = campaignList.getData().size();    if (isRefresh) {     campaignListAdapter.clear();    }    if (j != pageSize) {     mRecyclerView.setNoMore(true);    }    campaignListAdapter.addAll(campaignList.getData());    }else{    ToastUtil.show(getActivity(), campaignList.getMsg());    }   }   }   @Override   public void onError(Call call, Response response, Exception e) {   super.onError(call, response, e);   if(isRefresh){    mRecyclerView.refreshComplete();   }else {    mRecyclerView.loadMoreComplete();   }   KuaiZhiApplication.showResultToast(getActivity(), call, e);   }  }); } private void requestBannerList() { OkGo.post(Api.GET_INDEX_BANNER_LIST)  .tag(this)  .cacheKey("cache_index_banner_list")  .execute(new LoadingDialogCallback(getActivity()) {   @Override   public void onCacheSuccess(String s, Call call) {   super.onCacheSuccess(s, call);   analysisIndexBannerRequest(s);   }   @Override   public void onSuccess(String s, Call call, Response response) {   analysisIndexBannerRequest(s);   }   @Override   public void onError(Call call, Response response, Exception e) {   super.onError(call, response, e);   KuaiZhiApplication.showResultToast(getActivity(), call, e);   }  }); } private void analysisIndexBannerRequest(String s){ try {  indexBannerList = (IndexBannerList) ReflectUtil   .copy(IndexBannerList.class,    new JSONObject(s)); } catch (Exception e) {  e.printStackTrace(); } if (indexBannerList != null) {  String result = indexBannerList.getResult();  if (Api.SUCCESS.equals(result)) {  networkImages.clear();  for (IndexBanner ib : indexBannerList.getData()) {   networkImages.add(ib.getBanner_url());  }  setRecommendInfo();  initBanner();  }else{  ToastUtil.show(getActivity(), indexBannerList.getMsg());  } } } private void initBanner() { convenientBanner.setPages(new CBViewHolderCreator<NetworkImageHolderView>() {  @Override  public NetworkImageHolderView createHolder() {  return new NetworkImageHolderView();  } }, networkImages)  .setOnPageChangeListener(this);//监听翻页事件 convenientBanner.setPageTransformer(new AccordionTransformer()); convenientBanner.startTurning(3000); convenientBanner.setOnItemClickListener(new com.bigkoo.convenientbanner.listener.OnItemClickListener() {  @Override  public void onItemClick(int position) {  } }); } private void setRecommendInfo() { pointGroup.removeAllViews(); for (int i = 0; i < indexBannerList.getData().size(); i++) {  // 添加指示点  ImageView point = new ImageView(getActivity());  LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(   LinearLayout.LayoutParams.WRAP_CONTENT,   LinearLayout.LayoutParams.WRAP_CONTENT);  if (i != indexBannerList.getData().size() - 1) {  params.rightMargin = 10;  }  point.setLayoutParams(params);  point.setBackgroundResource(R.drawable.point_bg);  if (i == 0) {  point.setEnabled(true);  } else {  point.setEnabled(false);  }  pointGroup.addView(point); } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { // 改变指示点的状态 // 把当前点enbale 为true if (indexBannerList != null && indexBannerList.getData() != null && indexBannerList.getData().size() > 0) {  bannerTitleTv.setText(indexBannerList.getData().get(position).getBanner_title()); } pointGroup.getChildAt(position).setEnabled(true); // 把上一个点设为false pointGroup.getChildAt(lastPosition).setEnabled(false); lastPosition = position; } @Override public void onPageScrollStateChanged(int state) { }}