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。
成都创新互联公司长期为数千家客户提供的网站建设服务，团队从业经验10年，关注不同地域、不同群体，并针对不同对象提供差异化的产品和服务；打造开放共赢平台，与合作伙伴共同营造健康的互联网生态环境。为广安企业提供专业的做网站、网站设计，广安网站改版等技术服务。拥有十载丰富建站经验和众多成功案例,为您定制开发。
1.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;
/**
* 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.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 list = new ArrayList();
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<?> 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() {
@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) {
}
} fragment_index.xml
<?xml version="1.0" encoding="utf-8"?>
index_header.xml
<?xml version="1.0" encoding="utf-8"?>
CampaignListAdapter.java
package com.czhappy.commonindexdemo.adapter; import android.content.Context; import android.support.v7.widget.CardView; import android.view.View; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import com.czhappy.commonindexdemo.R; import com.czhappy.commonindexdemo.glide.GlideImgManager; import com.czhappy.commonindexdemo.model.Campaign; import com.czhappy.commonindexdemo.model.CampaignImage; import com.czhappy.commonindexdemo.utils.ToastUtil; import com.czhappy.commonindexdemo.utils.Utils; import com.lzy.ninegrid.ImageInfo; import com.lzy.ninegrid.NineGridView; import com.lzy.ninegrid.preview.NineGridViewClickAdapter; import java.util.ArrayList; import java.util.List; import butterknife.BindView; import butterknife.ButterKnife; /** * Description: * User: chenzheng * Date: 2016/9/14 0014 * Time: 17:45 */ public class CampaignListAdapter extends ListBaseAdapter{ private Context mContext; @BindView(R.id.user_head_iv) ImageView userHeadIv; @BindView(R.id.username_tv) TextView usernameTv; @BindView(R.id.createtime_tv) TextView createtimeTv; @BindView(R.id.status_tv) TextView statusTv; @BindView(R.id.title_tv) TextView titleTv; @BindView(R.id.desc_tv) TextView descTv; @BindView(R.id.campaign_time_tv) TextView campaignTimeTv; @BindView(R.id.prise_iv) ImageView priseIv; @BindView(R.id.prise_count_tv) TextView priseCountTv; @BindView(R.id.comment_count_tv) TextView commentCountTv; @BindView(R.id.nineGrid) NineGridView nineGrid; @BindView(R.id.address_tv) TextView addressTv; @BindView(R.id.cardView) CardView cardView; @BindView(R.id.layout_address) LinearLayout layoutAddress; public CampaignListAdapter(Context context) { super(context); this.mContext = context; } @Override public int getLayoutId() { return R.layout.campaign_list_item; } @Override public void onBindItemHolder(SuperViewHolder holder, int position) { ButterKnife.bind(this, holder.itemView); final Campaign campaign = mDataList.get(position); if(!Utils.isEmpty(campaign.getStart_time()) && Utils.isEmpty(campaign.getEnd_time())){ campaignTimeTv.setText("自"+Utils.StringDateFormat(campaign.getStart_time(), "yyyy-MM-dd HH:mm") + "起"); }else{ campaignTimeTv.setText(Utils.StringDateFormat(campaign.getStart_time(), "yyyy-MM-dd HH:mm") + "至" + Utils.StringDateFormat(campaign.getEnd_time(), "yyyy-MM-dd HH:mm")); } commentCountTv.setText(campaign.getComment_count()); createtimeTv.setText(campaign.getCreate_time()); descTv.setText(campaign.getCampaign_desc()); priseCountTv.setText(campaign.getPraise_count()); usernameTv.setText(campaign.getNickname()); if(!Utils.isEmpty(campaign.getCampaign_address())){ layoutAddress.setVisibility(View.VISIBLE); addressTv.setText(campaign.getCampaign_address()); }else{ layoutAddress.setVisibility(View.GONE); } if ("1".equals(campaign.getIs_praise())) { priseIv.setImageResource(R.mipmap.ding_checked_icon); } else { priseIv.setImageResource(R.mipmap.ding_uncheck_icon); } String statusStr = Utils.checkTimeStatus(campaign.getStart_time(), campaign.getEnd_time()); statusTv.setText(statusStr); if ("未开始".equals(statusStr)) { statusTv.setTextColor(mContext.getResources().getColor(R.color.blue)); } else if ("进行中".equals(statusStr)) { statusTv.setTextColor(mContext.getResources().getColor(R.color.red)); } else if ("已结束".equals(statusStr)) { statusTv.setTextColor(mContext.getResources().getColor(R.color.common_gray9)); } titleTv.setText(campaign.getCampaign_name()); GlideImgManager.loadCircleImage(mContext, campaign.getHead_img(), userHeadIv); ArrayList imageInfo = new ArrayList<>(); List images = campaign.getImg_list(); if (images != null) { for (CampaignImage image : images) { ImageInfo info = new ImageInfo(); info.setThumbnailUrl(image.getImage_url()); info.setBigImageUrl(image.getImage_url()); imageInfo.add(info); } } nineGrid.setAdapter(new NineGridViewClickAdapter(mContext, imageInfo)); if (images != null && images.size() == 1) { //nineGrid.setSingleImageRatio(images.get(0).getWidth() * 1.0f / images.get(0).getHeight()); } cardView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ToastUtil.show(mContext, campaign.getCampaign_name()); } }); } }
campaign_list_item.java
<?xml version="1.0" encoding="utf-8"?>
以上就是利用Android制作一个APP首页，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注创新互联行业资讯频道。
