Question

我正在尝试在视图分页器中创建选项卡，所有这些选项卡都在视图分页器选项卡中。
当我在视图分页器片段中使用第二个视图分页器时所有标签都放在一起。
请帮帮我。
这个mainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mDemoCollectionPagerAdapter =
            new DemoCollectionPagerAdapter(
                    getSupportFragmentManager());
    mViewPager =  findViewById(R.id.pager);
    mViewPager.setAdapter(mDemoCollectionPagerAdapter);
    final android.support.v7.app.ActionBar actionBar = getSupportActionBar();        actionBar.setNavigationMode(android.support.v7.app.ActionBar.NAVIGATION_MODE_TABS);
    android.support.v7.app.ActionBar.TabListener tabListener = new android.support.v7.app.ActionBar.TabListener() {
        @Override
        public void onTabSelected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
            mViewPager.setCurrentItem(tab.getPosition());
        }
        @Override
        public void onTabUnselected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        }
        @Override
        public void onTabReselected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {

        }
    };

    for (int i = 0; i < 3; i++) {
        actionBar.addTab(
                actionBar.newTab()
                        .setText("Tab " + (i + 1))
                        .setTabListener(tabListener));
    }
}

这是我的片段，第二个viewpager位于其中

public View onCreateView(LayoutInflater inflater,
                         ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_collection_object, container, false);
    trustCollectionPagerAdapter =new TrustCollectionPagerAdapter(getActivity().getSupportFragmentManager());
    mViewPagerTrust = rootView.findViewById(R.id.paging);
    mViewPagerTrust.setAdapter(trustCollectionPagerAdapter);

    final android.support.v7.app.ActionBar actionBarTrust = ((AppCompatActivity)getActivity()).getSupportActionBar();
    actionBarTrust.setNavigationMode(android.support.v7.app.ActionBar.NAVIGATION_MODE_TABS);

    // Create a tab listener that is called when the user changes tabs.
    android.support.v7.app.ActionBar.TabListener tabListenerTrust = new android.support.v7.app.ActionBar.TabListener() {

        @Override
        public void onTabSelected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
            mViewPagerTrust.setCurrentItem(tab.getPosition());
        }
        @Override
        public void onTabUnselected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        }
        @Override
        public void onTabReselected(android.support.v7.app.ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        }
    };
    for (int i = 0; i < 3; i++) {
        actionBarTrust.addTab(
                actionBarTrust.newTab()
                        .setText("Tab " + (i + 1))
                        .setTabListener(tabListenerTrust));
    }
    return rootView;
}

Answer 1

TabListener已贬值。

相反，请尝试更换：

android.support.v7.app.ActionBar.TabListener tabListenerTrust = new android.support.v7.app.ActionBar.TabListener() {

使用addOnTabSelectedListener()如下：

TabLayout tabLayout = (TabLayout) findViewById(R.id.yourtablayoutid);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {

       @Override
        public void onTabSelected(TabLayout.Ta, FragmentTransaction fragmentTransaction) {
            mViewPagerTrust.setCurrentItem(tab.getPosition());
        }
        @Override
        public void onTabUnselected(TabLayout.Ta, FragmentTransaction fragmentTransaction) {
        }
        @Override
        public void onTabReselected(TabLayout.Ta, FragmentTransaction fragmentTransaction) {
        }
    };

如何在视图页面中创建选项卡，以及如何在视图分页器选项卡中创建所有选项卡

1 个答案: