1.判断网络状态 package com.bw.qgs.shipei;
import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo;
public class NewThread { public boolean isNetWork(Context context){ ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); if(networkInfo!=null){ return true; } return false; } }
2.主页面中viewpager+drawerlayout
<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.DrawerLayout xmlns:android=“http://schemas.android.com/apk/res/android” xmlns:tools=“http://schemas.android.com/tools” android:id="@+id/draw" android:layout_width=“match_parent” android:layout_height=“match_parent” tools:context=".MainActivity">
<LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" /> <RadioGroup android:id="@+id/rg" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <RadioButton android:id="@+id/bt1" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:button="@null" android:checked="true" android:drawableTop="@drawable/sel1" android:gravity="center" android:text="关注" /> <RadioButton android:id="@+id/bt2" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:button="@null" android:drawableTop="@drawable/sel2" android:gravity="center" android:text="消息" /> <RadioButton android:id="@+id/bt3" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:button="@null" android:drawableTop="@drawable/sel3" android:gravity="center" android:text="我的" /> </RadioGroup> </LinearLayout> <fragment class="com.bw.qgs.shipei.fragment.BlankFragment" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="start" /></android.support.v4.widget.DrawerLayout>
package com.bw.qgs.shipei;
import android.app.ActionBar; import android.app.Fragment; import android.os.Bundle; import android.support.design.widget.TabLayout; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.view.MenuItem; import android.widget.RadioGroup; import android.widget.Toast;
import com.bw.qgs.shipei.adapter.LAdapter; import com.bw.qgs.shipei.fragment.OneFragment; import com.bw.qgs.shipei.fragment.ThreeFragment; import com.bw.qgs.shipei.fragment.TwoFragment;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private ViewPager pager; private DrawerLayout draw; private ActionBarDrawerToggle toggle; private RadioGroup rg; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initData(); initTwoData(); } private void initTwoData() { ArrayList<Fragment> list = new ArrayList<>(); list.add(new OneFragment()); list.add(new TwoFragment()); list.add(new ThreeFragment()); LAdapter adapter = new LAdapter(getFragmentManager()); adapter.setList(list); pager.setAdapter(adapter); pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int i, float v, int i1) { } @Override public void onPageSelected(int i) { rg.check(rg.getChildAt(i).getId()); } @Override public void onPageScrollStateChanged(int i) { } }); rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch (checkedId){ case R.id.bt1: pager.setCurrentItem(0); break; case R.id.bt2: pager.setCurrentItem(1); break; case R.id.bt3: pager.setCurrentItem(2); break; } } }); } private void initData() { android.support.v7.app.ActionBar actionBar = getSupportActionBar(); actionBar.setDisplayHomeAsUpEnabled(true); toggle = new ActionBarDrawerToggle(this, draw, R.string.open, R.string.close); toggle.syncState(); draw.addDrawerListener(toggle); } private void initView() { pager = (ViewPager) findViewById(R.id.pager); draw = (DrawerLayout) findViewById(R.id.draw); rg = (RadioGroup) findViewById(R.id.rg); } @Override public boolean onOptionsItemSelected(MenuItem item) { if(toggle.onOptionsItemSelected(item)){ return true; } return super.onOptionsItemSelected(item); }}
3.mysqlite package com.bw.qgs.shipei.sqlitelite;
import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper;
public class MySqlite extends SQLiteOpenHelper { public MySqlite(Context context) { super(context, “bw.db”, null, 1); }
@Override public void onCreate(SQLiteDatabase db) { db.execSQL("create table student(id INTEGER PRIMARY KEY AUTOINCREMENT,author_name varchar(40))"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { }}
4.sqldao层 package com.bw.qgs.shipei.sqlitelite;
import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase;
public class SQLDao {
private Context context; private SQLiteDatabase db; public SQLDao(Context context) { this.context = context; MySqlite sqlite = new MySqlite(context); db = sqlite.getReadableDatabase(); } public long insert(String table, String nullColumnHack, ContentValues values){ return db.insert(table,nullColumnHack,values); } public Cursor query(String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String having, String orderBy){ return db.query(table,columns,selection,selectionArgs,groupBy,having,orderBy); }}
5.onefragment
<com.handmark.pulltorefresh.library.PullToRefreshListView android:id="@+id/pullToRefreshListView" android:layout_width=“match_parent” android:layout_height=“match_parent” />
public class OneFragment extends Fragment {
private int cc=1; private String path = "http://www.xieast.com/api/news/news.php?page="; private PullToRefreshListView listview; private ArrayList<User.DataBean> list = new ArrayList<User.DataBean>(); private User user; private ArrayList<Bean> list1 = new ArrayList<Bean>(); private OneAdapter adapter; private ListView refreshableView; private SQLDao mDao; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_one, container, false); listview = view.findViewById(R.id.pullToRefreshListView); listview.setMode(PullToRefreshListView.Mode.BOTH); refreshableView = listview.getRefreshableView(); NewThread newThread = new NewThread(); mDao = new SQLDao(getActivity()); boolean netWork = newThread.isNetWork(getActivity()); if(netWork){ Toast.makeText(getActivity(),"连接成功",Toast.LENGTH_SHORT).show(); sta(cc); Toast.makeText(getActivity(),"添加成功",Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(getActivity(),"连接失败",Toast.LENGTH_SHORT).show(); Cursor cursor = mDao.query("student", null, null, null, null, null, null); if (cursor.moveToFirst()){ do{ String author_name = cursor.getString(cursor.getColumnIndex("author_name")); list1.add(new Bean(author_name)); }while (cursor.moveToNext()); } listview.setAdapter(adapter); } listview.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() { @Override public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) { sta(cc); new GetDataTask().execute(); } @Override public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) { cc++; sta(cc); new GetDataTask().execute(); } }); return view; } public void sta(int cc){ Gong gong = new Gong(); gong.get(path+cc).getGong(new Gong.HttpGong() { @Override public void getName(String name) { Gson gson = new Gson(); user = gson.fromJson(name, User.class); list.addAll(user.getData()); adapter = new OneAdapter(getActivity(),list); listview.setAdapter(adapter); for (int i = 0;i<list.size();i++){ ContentValues contentValues = new ContentValues(); contentValues.put("author_name",list.get(i).getAuthor_name()); mDao.insert("student",null,contentValues); } } }); } private class GetDataTask extends AsyncTask<Void,Void,String[]>{ @Override protected String[] doInBackground(Void... voids) { try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } return new String[0]; } @Override protected void onPostExecute(String[] strings) { list.addAll(user.getData()); adapter.notifyDataSetChanged(); listview.onRefreshComplete(); super.onPostExecute(strings); } }}
侧页面
@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_blank, container, false); view.findViewById(R.id.button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(list == null){ list = new ArrayList<>(); list.add(new ChannelBean("军事",true)); list.add(new ChannelBean("八卦",true)); list.add(new ChannelBean("游戏",true)); list.add(new ChannelBean("宠物",true)); list.add(new ChannelBean("汽车",false)); list.add(new ChannelBean("热卖",false)); list.add(new ChannelBean("外卖",false)); list.add(new ChannelBean("太阳花",false)); list.add(new ChannelBean("九三",false)); list.add(new ChannelBean("八嘎",false)); list.add(new ChannelBean("色昂",false)); ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),list); }else if(jsonStr !=null){ ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),jsonStr); } } }); return view; } /*public void button(View v){ if(list == null){ list = new ArrayList<>(); list.add(new ChannelBean("军事",true)); list.add(new ChannelBean("八卦",true)); list.add(new ChannelBean("游戏",true)); list.add(new ChannelBean("宠物",true)); list.add(new ChannelBean("汽车",false)); list.add(new ChannelBean("热卖",false)); list.add(new ChannelBean("外卖",false)); list.add(new ChannelBean("太阳花",false)); list.add(new ChannelBean("九三",false)); list.add(new ChannelBean("八嘎",false)); list.add(new ChannelBean("色昂",false)); ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),list); }else if(jsonStr !=null){ ChannelActivity.startChannelActivity((AppCompatActivity) getActivity(),jsonStr); } }*/ @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode == ChannelActivity.RESULT_CODE && requestCode == ChannelActivity.REQUEST_CODE){ jsonStr = data.getStringExtra(ChannelActivity.RESULT_JSON_KEY); } }}
