先展示效果
下面状态栏切换就省略了，用的是Fragment切换，主要看上面切换
需要加的权限
<uses-permission android:name="android.permission.ACCESS_NETWORK_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"/>
1、先看布局
<LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width="match_parent"
android:background="@color/colorPrimary"
android:orientation="vertical"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="@+id/tab"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:id="@+id/pager"
android:layout_height="0dp"
android:layout_weight="1"/>
2、Java代码
public class Fragment01 extends Fragment {
private TabLayout tabLayout;
private ViewPager pager;
private TabAdapter adapter;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment01,container,false);
tabLayout = view.findViewById(R.id.tab);
pager = view.findViewById(R.id.pager);
String str[] = {"关注", "推荐", "热门", "美女", "汽车", "娱乐"};
ArrayList<Fragment> list = new ArrayList<>();
list.add(new Tab01());
list.add(new Tab02());
list.add(new Tab03());
list.add(new Tab04());
list.add(new Tab05());
list.add(new Tab06());//每个Tab代表一个类 ，类里面找对应的XML布局
//适配器
adapter = new TabAdapter(getActivity().getSupportFragmentManager(), str, list);
pager.setAdapter(adapter);
tabLayout.setupWithViewPager(pager);
return view;
}
}
3、适配器代码
public class TabAdapter extends FragmentPagerAdapter {
private String str[];
private ArrayList<Fragment> list;
public TabAdapter(FragmentManager fm, String[] str, ArrayList<Fragment> list) {
super(fm);
this.str = str;
this.list = list;
}
@Override
public Fragment getItem(int i) {
return list.get(i);
}
@Override
public int getCount() {
return list.size();
}
@Nullable
@Override
public CharSequence getPageTitle(int position) {
return str[position];
}
}