PullAndTab组合横排滑动上落下提

Tab的布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.administrator.heyongwu1509a20170918.MainActivity"><android.support.design.widget.TabLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tabs"
        app:tabIndicatorColor="@color/red"
        app:tabMode="scrollable"
        app:tabSelectedTextColor="@color/red"
        app:tabTextColor="@color/black"/><android.support.v4.view.ViewPager
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/vp"/>
</LinearLayout>
pull的布局

<?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"><com.handmark.pulltorefresh.library.PullToRefreshListView
        xmlns:ptr="http://schemas.android.com/apk/res-auto"
        android:id="@+id/pull_refresh_list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:cacheColorHint="#000000"
        android:divider="#19000000"
        android:dividerHeight="4dp"
        android:fadingEdge="none"
        android:fastScrollEnabled="false"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:smoothScrollbar="true"
        ptr:ptrAnimationStyle="rotate"
        ptr:ptrHeaderTextColor="#ffffff"
        ptr:ptrHeaderSubTextColor="#00ffff"
        ptr:ptrHeaderBackground="@null"
        />
</LinearLayout>


主方法

public class MainActivity extends AppCompatActivity {//上面的滑动布局
    private TabLayout tabLayout;private LayoutInflater in;private ViewPager vp;private String[] channels = {里面写横排条目};private String[] urls={"里面写地址可用是json也可以是数组"};//存放fragment的集合
    private List<ChannelFragment> nview=new ArrayList();//创建的fragment对象
    private ChannelFragment channelFragment;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);vp= (ViewPager) findViewById(R.id.vp);tabLayout = (TabLayout) findViewById(R.id.tabs);in = LayoutInflater.from(this);for(int i=0;i<channels.length;i++){channelFragment = new ChannelFragment();Bundle bundle = new Bundle();bundle.putString("url",urls[i]);channelFragment.setArguments(bundle);nview.add(channelFragment);tabLayout.addTab(tabLayout.newTab().setText(channels[i]));}FragmentManager fm = getSupportFragmentManager();MyFragmentPagerAdapter adapter = new MyFragmentPagerAdapter(fm, nview);vp.setAdapter(adapter);tabLayout.setupWithViewPager(vp);tabLayout.setTabsFromPagerAdapter(adapter);}//viewpager适配器class MyFragmentPagerAdapter extends FragmentPagerAdapter {private List<ChannelFragment> nview;public MyFragmentPagerAdapter(FragmentManager fm, List nview) {super(fm);this.nview=nview;}@Override
        public int getCount() {return nview.size();}@Override
        public CharSequence getPageTitle(int position) {return channels[position];}@Override
        public Fragment getItem(int position) {return nview.get(position);}}}//这个是fragment的方法

public class ChannelFragment extends Fragment{private String news_url;private ListView lv;PullToRefreshListView mPullRefreshListView;String ss = "";View view;private List<News> newslist;private MyAdapter adapter;@Override
    public void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);Bundle bundle = getArguments();news_url = (String) bundle.get("url");}@Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {view = inflater.inflate(R.layout.item,null);initView();initDate();return view;}private void initDate() {xiala();}private void initView() {mPullRefreshListView = (PullToRefreshListView) view.findViewById(R.id.pull_refresh_list);mPullRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener<ListView>() {@Override
            //跟新方法
            public void onRefresh(PullToRefreshBase<ListView> refreshView) {xiala();}});//设置滑动尾部的监听器
        mPullRefreshListView.setOnLastItemVisibleListener(new PullToRefreshBase.OnLastItemVisibleListener() {@Override
            public void onLastItemVisible() {shangti();//滑动到底部是，提示已经到底部了

            }});}public void xiala(){new AsyncTask<String, Integer, String>() {@Override
            protected String doInBackground(String... params) {String s = params[0];String getsss = new HttpUrl().getsss(s);return getsss;}@Override
            protected void onPostExecute(String s) {super.onPostExecute(s);Bean bean = new Gson().fromJson(s, Bean.class);newslist = bean.getNewslist();adapter = new MyAdapter(newslist, getActivity());mPullRefreshListView.setAdapter(adapter);mPullRefreshListView.onRefreshComplete();}}.execute(news_url);}public void shangti(){new AsyncTask<String, Integer, String>() {@Override
            protected String doInBackground(String... params) {String s = params[0];String getsss = new HttpUrl().getsss(s);return getsss;}@Override
            protected void onPostExecute(String s) {super.onPostExecute(s);Bean bean = new Gson().fromJson(s, Bean.class);newslist.addAll(bean.getNewslist());adapter.notifyDataSetChanged();}}.execute(news_url);}
}


适配器还有一个布局

<?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:orientation="vertical"><TextView
        android:id="@+id/tv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" /><ImageView
        android:id="@+id/iv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

建立一个Myapp

public class Loader extends Application {@Override
    public void onCreate() {super.onCreate();File file = StorageUtils.getOwnCacheDirectory(getApplicationContext(), "UniversalImageLoader/Cache");DisplayImageOptions options = new DisplayImageOptions.Builder().cacheInMemory(true).cacheOnDisk(true).build();ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(getApplicationContext()).defaultDisplayImageOptions(options).memoryCache(new LRULimitedMemoryCache(12*1024*1024)).memoryCacheSize(12*1024*1024).diskCache(new UnlimitedDiskCache(file)).threadPriority(Thread.NORM_PRIORITY - 2).denyCacheImageMultipleSizesInMemory().diskCacheFileNameGenerator(new Md5FileNameGenerator()).tasksProcessingOrder(QueueProcessingType.LIFO).writeDebugLogs().build();ImageLoader.getInstance().init(configuration);}
}

然后就是适配器啦

public class MyAdapter extends BaseAdapter {private List<News> list;private Context context;public MyAdapter(List<News> list, Context context) {this.list = list;this.context = context;}@Override
    public int getCount() {return list.size();}@Override
    public Object getItem(int position) {return list.get(position);}@Override
    public long getItemId(int position) {return position;}@Override
    public View getView(int position, View convertView, ViewGroup parent) {DisplayImageOptions option = new DisplayImageOptions.Builder().cacheInMemory(true).cacheOnDisk(true).bitmapConfig(Bitmap.Config.RGB_565).imageScaleType(ImageScaleType.EXACTLY).build();convertView = View.inflate(context,R.layout.item2,null);TextView tv = (TextView) convertView.findViewById(R.id.tv);ImageView iv = (ImageView) convertView.findViewById(R.id.iv);tv.setText(list.get(position).getCtime()+list.get(position).getDescription()+list.get(position).getCtime());ImageLoader.getInstance().displayImage(list.get(position).getPicUrl(),iv,option);return convertView;}
}

异步的httpurl方法

public class HttpUrl {public String getsss(String ss){URL url = null;String hh = "";HttpURLConnection httpURLConnection = null;try {url = new URL(ss);httpURLConnection = (HttpURLConnection) url.openConnection();int responseCode = httpURLConnection.getResponseCode();if (responseCode == 200){InputStream inputStream = httpURLConnection.getInputStream();byte [] b =new byte[1024];int len = 0;while((len = inputStream.read(b))!=-1){hh += new String(b,0,len);}inputStream.close();}} catch (Exception e) {e.printStackTrace();}return hh;}}

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PullAndTab组合横排滑动上落下提

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