HorizontalScrollView+TabLayout+Fragment简单新闻类应用的头部

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:orientation="vertical"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.administrator.teee.MainActivity">

<HorizontalScrollView
android:scrollbars="none"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<android.support.design.widget.TabLayout
android:id="@+id/tab"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.design.widget.TabLayout>
</HorizontalScrollView>
<android.support.v4.view.ViewPager
android:id="@+id/vp"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>

3.MainActivity

private TabLayout mTab;
private ViewPager mVp;
private List<Fragment> listFrag=new ArrayList<>();

4000
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
for (int i = 0; i <20 ; i++) {
listFrag.add(new BlankFragment());
mTab.addTab(mTab.newTab());
}
MyAdapter myAdapter = new MyAdapter(getSupportFragmentManager());
myAdapter.setFragList(listFrag);
mVp.setAdapter(myAdapter);
//设置标题
for (int i = 0; i <20 ; i++) {
mTab.getTabAt(i).setText("新闻"+i);
}
}
//找控件
private void initView() {
mTab = (TabLayout) findViewById(R.id.tab);
mVp = (ViewPager) findViewById(R.id.vp);
//关联TabLayout和ViewPager
mTab.setupWithViewPager(mVp);
}

}

public class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
private List<Fragment> list;
public void setFragList(List<Fragment> list1){
this.list=list1;
}
@Override
public Fragment getItem(int position) {
return list.get(position);
}

@Override
public int getCount() {
return list.size();
}
}