一个使用友盟登录+Xutils3.0网络请求+XListView多条目加载。

MainActivity

import android.content.Intent; import android.os.Bundle; import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.ImageView; import android.widget.Toast; import com.example.lixin.zhoukaolx.fragment.MyFragment; import com.umeng.socialize.UMAuthListener; import com.umeng.socialize.UMShareAPI; import com.umeng.socialize.bean.SHARE_MEDIA; import java.util.Map; public class MainActivity extends AppCompatActivity{ private ImageView iv; private String[] strings; private TabLayout tabLayout; private ViewPager viewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tabLayout = (TabLayout) findViewById(R.id.tablayout); viewPager = (ViewPager) findViewById(R.id.viewpager); viewPager.setOffscreenPageLimit(8); iv = (ImageView) findViewById(R.id.iv); tabLayout.setupWithViewPager(viewPager); strings = new String[]{"川菜","湘菜","东北菜","新疆菜","北京菜","天津菜","唐山菜","湖南菜",}; iv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { UMShareAPI.get(MainActivity.this).getPlatformInfo(MainActivity.this, SHARE_MEDIA.QQ, umAuthListener); Toast.makeText(MainActivity.this, "点击了", Toast.LENGTH_SHORT).show(); } }); viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) { @Override public Fragment getItem(int position) { MyFragment myfragment = new MyFragment(); return myfragment; } @Override public int getCount() { return strings.length; } @Override public CharSequence getPageTitle(int position) { return strings[position]; } }); } private UMAuthListener umAuthListener = new UMAuthListener() { @Override public void onStart(SHARE_MEDIA platform) { //授权开始的回调 } @Override public void onComplete(SHARE_MEDIA platform, int action, Map<String, String> data) { Toast.makeText(getApplicationContext(), "Authorize succeed", Toast.LENGTH_SHORT).show(); } @Override public void onError(SHARE_MEDIA platform, int action, Throwable t) { Toast.makeText( getApplicationContext(), "Authorize fail", Toast.LENGTH_SHORT).show(); } @Override public void onCancel(SHARE_MEDIA platform, int action) { Toast.makeText( getApplicationContext(), "Authorize cancel", Toast.LENGTH_SHORT).show(); } }; @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); UMShareAPI.get(this).onActivityResult(requestCode, resultCode, data); } }

MyFragment

package com.example.lixin.zhoukaolx.fragment; 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 android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import com.example.lixin.zhoukaolx.R; import com.example.lixin.zhoukaolx.bean.MenuInfo; import com.google.gson.Gson; import com.limxing.xlistview.view.XListView; import org.xutils.common.Callback; import org.xutils.http.RequestParams; import org.xutils.image.ImageOptions; import org.xutils.x; import java.util.List; /** * Created by hua on 2017/8/4. */ public class MyFragment extends Fragment implements XListView.IXListViewListener { private int index = 1; private XListView xListView; private boolean flag; private MyBaseAdapter adapter; @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View inflate = inflater.inflate(R.layout.myfragment, container, false); return inflate; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); xListView = (XListView) getView().findViewById(R.id.xlistview); xListView.setPullLoadEnable(true); xListView.setXListViewListener(this); initData(); } private void initData(){ RequestParams params=new RequestParams("http://apis.juhe.cn/cook/query.php"); params.addQueryStringParameter("key","4828e85e3b04e4b0d7ac8afab28a39cf"); params.addQueryStringParameter("menu","小鸡炖蘑菇"); params.addQueryStringParameter("pn",index+""); params.addQueryStringParameter("rn","10"); x.http().get(params, new Callback.CommonCallback<String>() { @Override public void onSuccess(String result) { System.out.println("----------------------------"+result); Gson gson = new Gson(); MenuInfo menuInfo = gson.fromJson(result, MenuInfo.class); List<MenuInfo.ResultBean.DataBean> data = menuInfo.getResult().getData(); System.out.println("-----------------------"+data); if (adapter==null){ adapter = new MyBaseAdapter(data); xListView.setAdapter(adapter); }else{ adapter.add(data,flag); adapter.notifyDataSetChanged(); } } @Override public void onError(Throwable ex, boolean isOnCallback) { } @Override public void onCancelled(Callback.CancelledException cex) { } @Override public void onFinished() { } }); } @Override public void onRefresh() { index++; initData(); flag=true; xListView.stopRefresh(true); } @Override public void onLoadMore() { index++; initData(); flag=false; xListView.stopLoadMore(); } class MyBaseAdapter extends BaseAdapter { private List<MenuInfo.ResultBean.DataBean> data; private MyBaseAdapter(List<MenuInfo.ResultBean.DataBean> data){ this.data=data; } public void add(List<MenuInfo.ResultBean.DataBean> datas,boolean flag){ for (MenuInfo.ResultBean.DataBean b:datas) { if (flag){ data.add(0,b); }else{ data.add(b); } } } ImageOptions imageOptions=new ImageOptions.Builder() .setLoadingDrawableId(R.mipmap.ic_launcher) .setUseMemCache(true) .setSize(200,200) .build(); @Override public int getCount() { return data.size(); } @Override public Object getItem(int position) { return data.get(position); } @Override public long getItemId(int position) { return position; } @Override public int getViewTypeCount() { return 2; } @Override public int getItemViewType(int position) { if (position%2==0){ return 0; }else { return 1; } } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; ViewHolder1 holder1 = null; switch (getItemViewType(position)){ case 0: if (convertView == null){ convertView = View.inflate(getActivity(),R.layout.item1,null); holder = new ViewHolder(); holder.iv = (ImageView) convertView.findViewById(R.id.item_iv); holder.tv = (TextView) convertView.findViewById(R.id.item_tv); convertView.setTag(holder); }else { holder = (ViewHolder) convertView.getTag(); } holder.tv.setText(data.get(position).getImtro()); x.image().bind(holder.iv,data.get(position).getAlbums().get(0),imageOptions); break; case 1: if (convertView == null){ convertView = View.inflate(getActivity(),R.layout.item2,null); holder1 = new ViewHolder1(); holder1.iv = (ImageView) convertView.findViewById(R.id.item2_iv); holder1.tv = (TextView) convertView.findViewById(R.id.item2_tv); convertView.setTag(holder1); }else { holder1 = (ViewHolder1) convertView.getTag(); } holder1.tv.setText(data.get(position).getImtro()); x.image().bind(holder1.iv,data.get(position).getAlbums().get(0),imageOptions); break; } return convertView; } class ViewHolder{ TextView tv; ImageView iv; } class ViewHolder1{ TextView tv; ImageView iv; } } }

MyApplication

package com.example.lixin.zhoukaolx; import android.app.Application; import com.umeng.socialize.Config; import com.umeng.socialize.PlatformConfig; import com.umeng.socialize.UMShareAPI; import org.xutils.x; /** * Created by hua on 2017/8/4. */ public class MyApplication extends Application { { PlatformConfig.setQQZone("100424468", "c7394704798a158208a74ab60104f0ba"); } @Override public void onCreate() { super.onCreate(); x.Ext.init(this); UMShareAPI.get(this); Config.DEBUG = true; } }

AndroidManifest

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.lixin.zhoukaolx"> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" /> <application android:name=".MyApplication" android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.umeng.qq.tencent.AuthActivity" android:launchMode="singleTask" android:noHistory="true" > <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.BROWSABLE" /> <data android:scheme="tencent100424468" /> </intent-filter> </activity> <activity android:name="com.umeng.qq.tencent.AssistActivity" android:screenOrientation="portrait" android:theme="@android:style/Theme.Translucent.NoTitleBar" android:configChanges="orientation|keyboardHidden|screenSize"/> <meta-data android:name="UMENG_APPKEY" android:value="561cae6ae0f55abd990035bf" > </meta-data> </application> </manifest>