我viewPager标签不显示
问题描述:
你好我的材料测试应用程序中有一个问题,我想测试标签设计,但它没有为我工作,即时通讯教程,我做了同样的,但它没有工作,所有的片段和XML文件都不错,只是这是行不通的 有人可以帮助我! 感谢我viewPager标签不显示
private ViewPager mPager;
private SlidingTabLayout mTab;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawerLayout), toolbar);
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
mTab = (SlidingTabLayout) findViewById(R.id.tabs);
mTab.setViewPager(mPager);
}
class MyPagerAdapter extends FragmentPagerAdapter {
String[] tabs;
public MyPagerAdapter(FragmentManager fm) {
super(fm);
tabs = getResources().getStringArray(R.array.tabs);
}
@Override
public Fragment getItem(int position) {
MyFragment myFragment = MyFragment.getInstance(position);
return myFragment;
}
@Override
public CharSequence getPageTitle(int position) {
return tabs[position];
}
@Override
public int getCount() {
return 3;
}
}
public static class MyFragment extends Fragment {
private TextView textView;
public static MyFragment getInstance(int position) {
MyFragment myFragment = new MyFragment();
Bundle args = new Bundle();
args.putInt("position", position);
myFragment.setArguments(args);
return myFragment;
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layout = inflater.inflate(R.layout.frament_my, container, false);
textView = (TextView) layout.findViewById(R.id.position);
Bundle bundle = getArguments();
if (bundle != null) {
textView.setText("The page selector is " + bundle.getInt("position") + 1);
}
return layout;
}
}
}
答
如果您使用的是片段传呼机适配器,您可以添加一个块到打开和关闭viewPager之间的XML,它会自动处理的标签,你根据你定义什么getPageTitle()来做。
<android.support.v4.view.ViewPager
android:id="@+id/vpPager"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.view.PagerTabStrip
android:id="@+id/pager_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:paddingBottom="4dp"
android:paddingTop="4dp" />
</android.support.v4.view.ViewPager>
我得到这个从这个链接,我想你会发现有用:https://github.com/codepath/android_guides/wiki/ViewPager-with-FragmentPagerAdapter
这对我没有工作:/ http://puu.sh/j8Hlb/bde557d06b.png –