侧拉+xlistview+Fragment+Viewpager+判断网络状态
来源：互联网 发布：全国信息技术水平java 编辑：程序博客网 时间：2024/06/18 13:17
**
添加网络权限
依赖xlistviewlibrary
导jar包
**
activity_main
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.liuxingdou.month_lianxi.MainActivity"><android.support.v4.widget.DrawerLayout android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/draw" > <!--主内容区域--> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <FrameLayout android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/frag" android:layout_weight="1" > </FrameLayout> <RadioGroup android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="30dp" android:id="@+id/rg" > <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:text="首页" android:textSize="20sp" android:id="@+id/rb1" android:gravity="center" android:button="@null" /> <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:text="购物车" android:textSize="20sp" android:id="@+id/rb2" android:gravity="center" android:button="@null" /> <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:text="我的" android:textSize="20sp" android:id="@+id/rb3" android:gravity="center" android:button="@null" /> <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:text="资料" android:textSize="20sp" android:id="@+id/rb4" android:gravity="center" android:button="@null" /> </RadioGroup> </LinearLayout> <RelativeLayout android:layout_width="260dp" android:layout_height="match_parent" android:id="@+id/rel_menu" android:layout_gravity="start" android:background="#E79B8B"> <ImageView android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/a3" android:layout_centerHorizontal="true" android:id="@+id/img_title" android:layout_marginBottom="50dp"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:textSize="20dp" android:text="刘小豆" android:layout_below="@+id/img_title"/> </RelativeLayout></android.support.v4.widget.DrawerLayout></LinearLayout>child1
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#E3D5C1" ><com.bwie.xlistviewlibrary.View.XListView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/xlv" ></com.bwie.xlistviewlibrary.View.XListView></LinearLayout>child2,3
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#B6B8B3" ></LinearLayout>frag1
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:orientation="vertical" android:layout_height="match_parent" ><RadioGroup android:layout_width="match_parent" android:layout_height="30dp" android:orientation="horizontal" android:id="@+id/rg" > <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:button="@null" android:text="资源" android:textSize="20dp" android:gravity="center" android:id="@+id/crb1" android:layout_weight="1" /> <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:button="@null" android:text="分类" android:textSize="20dp" android:gravity="center" android:id="@+id/crb2" android:layout_weight="1" /> <RadioButton android:layout_width="0dp" android:layout_height="match_parent" android:button="@null" android:text="精选" android:textSize="20dp" android:gravity="center" android:id="@+id/crb3" android:layout_weight="1" /></RadioGroup> <android.support.v4.view.ViewPager android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/vp" android:layout_weight="1" ></android.support.v4.view.ViewPager></LinearLayout>frag2,3,4
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#F5CD19" ></LinearLayout>item0
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textSize="20sp" android:text="宣传宣传宣传下" android:id="@+id/desc"/></LinearLayout>item1
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:layout_height="100dp" android:layout_width="100dp" android:id="@+id/iv" android:src="@mipmap/ic_launcher"/> <TextView android:layout_height="100dp" android:layout_width="match_parent" android:textSize="20sp" android:text="宣传宣传宣传下" android:id="@+id/desc1"/></LinearLayout>MainActivity
package com.liuxingdou.month_lianxi;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.graphics.Color;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.support.v4.app.Fragment;import android.support.v4.widget.DrawerLayout;import android.support.v7.app.AlertDialog;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.telephony.TelephonyManager;import android.util.Log;import android.view.View;import android.widget.FrameLayout;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Toast;public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final RadioButton rb1 = (RadioButton) findViewById(R.id.rb1); final RadioButton rb2= (RadioButton) findViewById(R.id.rb2); final RadioButton rb3 = (RadioButton) findViewById(R.id.rb3); final RadioButton rb4 = (RadioButton) findViewById(R.id.rb4); final RadioGroup rg = (RadioGroup) findViewById(R.id.rg); final DrawerLayout draw = (DrawerLayout) findViewById(R.id.draw); final FrameLayout frag = (FrameLayout) findViewById(R.id.frag); init(new fragment1()); rb1.setTextColor(Color.GREEN); rb2.setTextColor(Color.BLACK); rb3.setTextColor(Color.BLACK); rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup radioGroup, int i) { switch (i) { case R.id.rb1: init(new fragment1()); rb1.setTextColor(Color.GREEN); rb2.setTextColor(Color.BLACK); rb3.setTextColor(Color.BLACK); rb4.setTextColor(Color.BLACK); break; case R.id.rb2: rb1.setTextColor(Color.BLACK); rb2.setTextColor(Color.GREEN); rb3.setTextColor(Color.BLACK); rb4.setTextColor(Color.BLACK); init(new fragment2()); break; case R.id.rb3: rb1.setTextColor(Color.BLACK); rb2.setTextColor(Color.BLACK); rb3.setTextColor(Color.GREEN); rb4.setTextColor(Color.BLACK); init(new fragment3()); break; case R.id.rb4: rb1.setTextColor(Color.BLACK); rb2.setTextColor(Color.BLACK); rb3.setTextColor(Color.BLACK); rb4.setTextColor(Color.GREEN); init(new fragment4()); break; } } }); draw.setDrawerListener(new DrawerLayout.DrawerListener() { @Override public void onDrawerSlide(View drawerView, float slideOffset) { } @Override public void onDrawerOpened(View drawerView) { Log.d("ccc","已打开"); } @Override public void onDrawerClosed(View drawerView) { Log.d("ccc","已关闭"); } @Override public void onDrawerStateChanged(int newState) { } }); checkMobileNet(); } private void checkMobileNet() { // 1.检测手机是否处于联网状态 // 1.得到系统服务ConnectivityManager ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); // 2.得到网络信息类对象 NetworkInfo networkInfo = manager.getActiveNetworkInfo(); // 3.进行判断 if (networkInfo != null && networkInfo.isConnected()) { Toast.makeText(this, "已连接互联网!",Toast.LENGTH_SHORT).show(); // 检测手机的网络类型 int type = networkInfo.getType();// 得到网络类型 switch (type) { case ConnectivityManager.TYPE_WIFI:// wifi网络 Toast.makeText(this, "wifi!", Toast.LENGTH_SHORT).show(); break; case ConnectivityManager.TYPE_MOBILE:// 移动数据 Toast.makeText(this, "移动数据!", Toast.LENGTH_SHORT).show(); // 2g 3g 4g getDetailMobileNetType(networkInfo); break; } } else { Toast.makeText(this, "未连接互联网!", Toast.LENGTH_SHORT).show(); AlertDialog.Builder buider=new AlertDialog.Builder(this); buider.setTitle("网络连接设置"); buider.setMessage("未连接网络，是否要进行设置？"); buider.setPositiveButton("设置", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { //跳转到系统设置网络的界面 Intent intent=new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS); startActivity(intent); } }); buider.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { } }); buider.create().show(); } } public void init(Fragment fragment){ getSupportFragmentManager().beginTransaction().replace(R.id.frag, fragment).commit(); } // 得到详细的网络类型 wap 2G/3G/4G网络 public void getDetailMobileNetType(NetworkInfo netInfo) { String strNetworkType = ""; // 得到整数类型 int subtype = netInfo.getSubtype(); // 得到名子 String _strSubTypeName = netInfo.getSubtypeName(); switch (subtype) { case TelephonyManager.NETWORK_TYPE_GPRS:// 联通2G case TelephonyManager.NETWORK_TYPE_EDGE:// 移动2G case TelephonyManager.NETWORK_TYPE_CDMA:// 电信2G case TelephonyManager.NETWORK_TYPE_1xRTT: case TelephonyManager.NETWORK_TYPE_IDEN: // api<8 : replace by 11 strNetworkType = "2G"; break; case TelephonyManager.NETWORK_TYPE_UMTS: case TelephonyManager.NETWORK_TYPE_EVDO_0: case TelephonyManager.NETWORK_TYPE_EVDO_A: case TelephonyManager.NETWORK_TYPE_HSDPA: case TelephonyManager.NETWORK_TYPE_HSUPA: case TelephonyManager.NETWORK_TYPE_HSPA: case TelephonyManager.NETWORK_TYPE_EVDO_B: // api<9 : replace by 14 case TelephonyManager.NETWORK_TYPE_EHRPD: // api<11 : replace by 12 case TelephonyManager.NETWORK_TYPE_HSPAP: // api<13 : replace by 15 strNetworkType = "3G"; break; case TelephonyManager.NETWORK_TYPE_LTE: // api<11 : replace by 13 strNetworkType = "4G"; break; default: // http://baike.baidu.com/item/TD-SCDMA 中国移动 联通 电信 三种3G制式 if (_strSubTypeName.equalsIgnoreCase("TD-SCDMA") || _strSubTypeName.equalsIgnoreCase("WCDMA") || _strSubTypeName.equalsIgnoreCase("CDMA2000")) { strNetworkType = "3G"; } else { strNetworkType = _strSubTypeName; } break; } Log.d("zzz", "网络类型是：" + strNetworkType); }}Bean
package com.liuxingdou.month_lianxi;import java.util.List;public class Bean { /** * result : success * data : [{"ID":"30736417","TITLE":"九三学社中央十三届二十次常委会举行","SUBTITLE":" 九三学社第十三届中央常务委员会第二十次会议10月29日在京举行。会议学习贯彻","IMAGEURL":"http://www.93.gov.cn/11002/upload/webcms/content/image/2017/10/30/15_13_54_275_30248_A62I7285_fb.jpg","FROMNAME":"九三学社中央宣传部","SHOWTIME":"2017-10-30","RN":1},{"ID":"30736385","TITLE":"九三学社中央关于学习贯彻中国共产党第十九次全国代表大会精神的决议","SUBTITLE":"（2017年10月29日九三学社第十三届中央常务委员会第二十次会议通过） 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只留清气满乾坤","SUBTITLE":"\u2014\u2014九三学社中央学习中共十九大精神座谈会侧记","IMAGEURL":"/11002/upload/webcms/content/image/2017/10/27/09_30_27_407_76424_A62I6673_fb_fb.jpg","FROMNAME":"九三学社中央宣传部","SHOWTIME":"2017-10-27","RN":2},{"ID":"30670854","TITLE":"九三学社中央理论学习中心组集体学习中共十九大精神","SUBTITLE":null,"IMAGEURL":"/11002/upload/webcms/content/image/2017/10/27/17_56_33_201_79135_A62I6969_fb_fb.jpg","FROMNAME":"九三学社中央宣传部","SHOWTIME":"2017-10-27","RN":3},{"ID":"30441636","TITLE":"九三学社第三期省级以下机关专职干部培训班举办","SUBTITLE":null,"IMAGEURL":"/11002/upload/webcms/content/image/2017/10/26/09_49_30_024_31563_A62I6428_fb_fb.jpg","FROMNAME":"九三学社中央宣传部","SHOWTIME":"2017-10-26","RN":4},{"ID":"30310406","TITLE":"九三学社中央科学座谈会聚焦文物考古与丝绸之路","SUBTITLE":null,"IMAGEURL":"/11002/upload/webcms/content/image/2017/10/15/14_56_29_117_12420_01.jpg","FROMNAME":"九三学社中央宣传部","SHOWTIME":"2017-10-15","RN":5}] */ private String result; private List<DataBean> data; private List<DataScrollBean> dataScroll; public String getResult() { return result; } public void setResult(String result) { this.result = result; } public List<DataBean> getData() { return data; } public void setData(List<DataBean> data) { this.data = data; } public List<DataScrollBean> getDataScroll() { return dataScroll; } public void setDataScroll(List<DataScrollBean> dataScroll) { this.dataScroll = dataScroll; } public static class DataBean { /** * ID : 30736417 * TITLE : 九三学社中央十三届二十次常委会举行 * SUBTITLE : 九三学社第十三届中央常务委员会第二十次会议10月29日在京举行。会议学习贯彻 * IMAGEURL : http://www.93.gov.cn/11002/upload/webcms/content/image/2017/10/30/15_13_54_275_30248_A62I7285_fb.jpg * FROMNAME : 九三学社中央宣传部 * SHOWTIME : 2017-10-30 * RN : 1 */ private String ID; private String TITLE; private String SUBTITLE; private String IMAGEURL; private String FROMNAME; private String SHOWTIME; private int RN; public String getID() { return ID; } public void setID(String ID) { this.ID = ID; } public String getTITLE() { return TITLE; } public void setTITLE(String TITLE) { this.TITLE = TITLE; } public String getSUBTITLE() { return SUBTITLE; } public void setSUBTITLE(String SUBTITLE) { this.SUBTITLE = SUBTITLE; } public String getIMAGEURL() { return IMAGEURL; } public void setIMAGEURL(String IMAGEURL) { this.IMAGEURL = IMAGEURL; } public String getFROMNAME() { return FROMNAME; } public void setFROMNAME(String FROMNAME) { this.FROMNAME = FROMNAME; } public String getSHOWTIME() { return SHOWTIME; } public void setSHOWTIME(String SHOWTIME) { this.SHOWTIME = SHOWTIME; } public int getRN() { return RN; } public void setRN(int RN) { this.RN = RN; } } public static class DataScrollBean { /** * ID : 30736417 * TITLE : 九三学社中央十三届二十次常委会举行 * SUBTITLE : null * IMAGEURL : /11002/upload/webcms/content/image/2017/10/30/15_16_42_506_60159_A62I7285_fb-fb.jpg * FROMNAME : 九三学社中央宣传部 * SHOWTIME : 2017-10-30 * RN : 1 */ private String ID; private String TITLE; private Object SUBTITLE; private String IMAGEURL; private String FROMNAME; private String SHOWTIME; private int RN; public String getID() { return ID; } public void setID(String ID) { this.ID = ID; } public String getTITLE() { return TITLE; } public void setTITLE(String TITLE) { this.TITLE = TITLE; } public Object getSUBTITLE() { return SUBTITLE; } public void setSUBTITLE(Object SUBTITLE) { this.SUBTITLE = SUBTITLE; } public String getIMAGEURL() { return IMAGEURL; } public void setIMAGEURL(String IMAGEURL) { this.IMAGEURL = IMAGEURL; } public String getFROMNAME() { return FROMNAME; } public void setFROMNAME(String FROMNAME) { this.FROMNAME = FROMNAME; } public String getSHOWTIME() { return SHOWTIME; } public void setSHOWTIME(String SHOWTIME) { this.SHOWTIME = SHOWTIME; } public int getRN() { return RN; } public void setRN(int RN) { this.RN = RN; } }}Childfragment1
package com.liuxingdou.month_lianxi;import android.os.AsyncTask;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.bwie.xlistviewlibrary.View.XListView;import com.bwie.xlistviewlibrary.utils.NetWordUtils;import com.google.gson.Gson;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.ArrayList;import java.util.List;public class Childfragment1 extends Fragment implements XListView.IXListViewListener { private XListView xlv; private ArrayList<Bean.DataBean> list=new ArrayList<>(); String url="http://www.93.gov.cn/93app/data.do?channelId=0&startNum="; private MAdapter mAdapter; private ImageLoader imageLoaderInstance; int page = 0; public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.child1, container, false); xlv = (XListView) view.findViewById(R.id.xlv); return view; } @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); imageLoaderInstance = ImageLoader.getInstance(); mAdapter = new MAdapter(); xlv.setAdapter(mAdapter); xlv.setPullLoadEnable(true); xlv.setXListViewListener(this); getNetData(page); } /** * 请求网络数据 */ private void getNetData(int number) { new MAsyncTask().execute(url + number); } private class MAdapter extends BaseAdapter { @Override public int getCount() { return list.size(); } @Override public Object getItem(int i) { return list.get(i); } @Override public long getItemId(int i) { return i; } @Override public int getViewTypeCount() { return 2; } @Override public int getItemViewType(int position) { int type = 0; if (list.get(position).getIMAGEURL() ==null || list.get(position).getIMAGEURL()=="" ) { type = 0; //只有文字的条目 } else { type = 1; //文字+图片 } return type; } @Override public View getView(int i, View view, ViewGroup viewGroup) { Holder0 holder0 = null; Holder1 holder1 = null; int itemViewType = getItemViewType(i); switch (itemViewType) { case 0: // 只有文字 if (view == null) { holder0 = new Holder0(); view = View.inflate(getActivity(), R.layout.item0, null); holder0.desc = view.findViewById(R.id.desc); view.setTag(holder0); } else { holder0 = (Holder0) view.getTag(); } holder0.desc.setText(list.get(i).getTITLE()); break; case 1: //文字+图片 if (view == null) { holder1 = new Holder1(); view = View.inflate(getActivity(), R.layout.item1, null); holder1.desc1 = view.findViewById(R.id.desc1); holder1.iv = view.findViewById(R.id.iv); view.setTag(holder1); } else { holder1 = (Holder1) view.getTag(); } holder1.desc1.setText(list.get(i).getTITLE()); imageLoaderInstance.displayImage(list.get(i).getIMAGEURL(), holder1.iv); break; } return view; } } class Holder0 { private TextView desc; } class Holder1 { private TextView desc1; private ImageView iv; } @Override public void onRefresh() { list.clear(); page = 0; getNetData(page); } @Override public void onLoadMore() { getNetData(page+=20); }/** * 请求网络 */ class MAsyncTask extends AsyncTask<String, Void, String> { private XListView xlv; @Override protected String doInBackground(String... strings) { return NetWordUtils.getNetjson(strings[0]); } @Override protected void onPostExecute(String s) { super.onPostExecute(s); Gson gson = new Gson(); Bean product = gson.fromJson(s, Bean.class); List<Bean.DataBean> dataBeanList = product.getData(); list.addAll(dataBeanList); mAdapter.notifyDataSetChanged(); uiComplete();//让刷新头 或刷新底部 隐藏 }} public void uiComplete(){ xlv.stopRefresh(); xlv.stopLoadMore(); xlv.setRefreshTime("刚刚"); }}Childfragment2,3
package com.liuxingdou.month_lianxi;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 class Childfragment2 extends Fragment { @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.child2, null); return view; }}fragment1
package com.liuxingdou.month_lianxi;import android.graphics.Color;import android.os.Bundle;import android.support.annotation.Nullable;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 android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Switch;import java.util.ArrayList;import java.util.List;public class fragment1 extends Fragment { private List<Fragment> list=new ArrayList<>(); @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.frag1, null); final RadioGroup rg = (RadioGroup) view.findViewById(R.id.rg); final RadioButton crb1 = (RadioButton) view.findViewById(R.id.crb1); final RadioButton crb2 = (RadioButton) view.findViewById(R.id.crb2); final RadioButton crb3 = (RadioButton) view.findViewById(R.id.crb3); final ViewPager vp = (ViewPager) view.findViewById(R.id.vp); crb1.setTextColor(Color.RED); crb2.setTextColor(Color.GRAY); crb3.setTextColor(Color.GRAY); list.add(new Childfragment1()); list.add(new Childfragment2()); list.add(new Childfragment3()); rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup radioGroup, int i) { switch (i) { case R.id.crb1: vp.setCurrentItem(0); break; case R.id.crb2: vp.setCurrentItem(1); break; case R.id.crb3: vp.setCurrentItem(2); break; } } }); vp.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { switch (position) { case 0: crb1.setTextColor(Color.RED); crb2.setTextColor(Color.GRAY); crb3.setTextColor(Color.GRAY); break; case 1: crb1.setTextColor(Color.GRAY); crb2.setTextColor(Color.RED); crb3.setTextColor(Color.GRAY); break; case 2: crb1.setTextColor(Color.GRAY); crb2.setTextColor(Color.GRAY); crb3.setTextColor(Color.RED); break; } } @Override public void onPageScrollStateChanged(int state) { } }); final MyAdapter myAdapter = new MyAdapter(getChildFragmentManager()); vp.setAdapter(myAdapter); return view; } private class MyAdapter extends FragmentPagerAdapter{ public MyAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { return list.get(position); } @Override public int getCount() { return list.size(); } }}fragment2,3,4
package com.liuxingdou.month_lianxi;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 class fragment2 extends Fragment { @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.frag2, null); return view; }}MApp
package com.liuxingdou.month_lianxi;import android.app.Application;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;public class MApp extends Application { @Override public void onCreate() { super.onCreate(); //初始化组件 ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this).build(); ImageLoader.getInstance().init(configuration); }}NetUtil
package com.liuxingdou.month_lianxi;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;public class NetUtil { public static String getNetJson(String urlString) { try { //url对象封装接口字符串 URL url = new URL(urlString); //用url打开连接, 返回值我们用HttpURLConnection HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); //设置链接超时时间 urlConnection.setConnectTimeout(8000); //获取状态码 int responseCode = urlConnection.getResponseCode(); if(responseCode==200) { InputStream inputStream = urlConnection.getInputStream(); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); //可拼接的字符串 StringBuilder stringBuilder = new StringBuilder(); String temp=""; while ((temp=bufferedReader.readLine())!=null) { stringBuilder.append(temp); } return stringBuilder.toString(); } else { } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return ""; } public static Bitmap getNetBitmap(String urlString) { try { //url对象封装接口字符串 URL url = new URL(urlString); //用url打开连接, 返回值我们用HttpURLConnection HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); //设置链接超时时间 httpURLConnection.setConnectTimeout(8000); int responseCode = httpURLConnection.getResponseCode(); if(responseCode==200) { InputStream inputStream = httpURLConnection.getInputStream(); //BitmapFactory: android提供好的加工图片的工具类, Bitmap bitmap = BitmapFactory.decodeStream(inputStream); return bitmap; }else { } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; }}
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