tabIndicator is not showing up properly(it is showing in the reverse way)

Question

I have added tab layout in my activity.Everything is working fine, but the tab Indicators are not showing up as expected. I am adding the photo below so that you can get an idea.I mean to say that when I click on Overview(tab indicator is shown below Detail fragment) and vice versa.

Given below is the XML code(Activity_inventory_detail):

Java Code(Inventory_deatil_Activity.java) is given below(can not post full code as it is having many lines), only adding Tablayout and the related part. This is code in which I declared the Tablayout .

public class Inventory_detail_Activity extends AbstractKActivity implements DetailsDataListener, View.OnClickListener, SimpleGestureFilter.SimpleGestureListener, ContentManager.PickContentListener {

public static final String TAG_LABEL_OVERVIEW = "Overview";
public static final String TAG_LABEL_DETAILS = "Detail";
InventoryItemsList inventoryItems;
protected int current_item_index = 0;
public List inventory_items_list = new ArrayList<>();
InventoryItem inventory_item;
private ViewPager viewPager;
private ViewPagerAdapter pagerAdapter;
TabLayout tabLayout;

this is where I have initialized the Tablayout .

protected void init() {
 final TabLayout tabLayout = (TabLayout)findViewById(R.id.tab_layout);

 viewPager = (ViewPager) findViewById(R.id.pager_inventory_detail);
 setupViewPager(viewPager);
 tabLayout.setupWithViewPager(viewPager);

viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
    tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            viewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });

Given below is the code for ViewPagerAdapter

class ViewPagerAdapter extends SmartFragmentStatePagerAdapter {
        //private final List mFragmentList = new ArrayList<>();
        private final List mFragmentTitleList = new ArrayList<>();

        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            ItemDetailAbstractFragment caf;
            switch (position) {
                case 0: // Fragment # 0 - This will show FirstFragment
                    caf = new ItemDetailOverviewFragment();
                    break;
                case 1: // Fragment # 0 - This will show FirstFragment different title
                    caf = new ItemDetailDetailsFragment();
                    break;
                default:
                    return null;
            }

            Bundle args = ActivityStateManager.getInstance().getActivityState(getLocalClassName());
            if (args == null) {
                args = new Bundle();
            }

            caf.setFlowItem(inventory_item);

            if(current_item_index == -1) {
                caf.setFlowItem(inventory_item);
                caf.populateData();
            }
            return caf;
        }

        @Override
        public int getCount() {
            return 2;
        }


        public void addFragment(int position, String title) {
            mFragmentTitleList.add(position, title);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }

    }

    @Override
    public void onPause() {
        Log.e("DEBUG", "onPause of ClientListTabactivity");
        super.onPause();
//        currentState.putSerializable("flowItem",inventory_item);
//        ActivityStateManager.getInstance().updateActivityState(getLocalClassName(), currentState);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
//        outState.putSerializable("flowItem",inventory_item);
//        ActivityStateManager.getInstance().updateActivityState(getLocalClassName(), outState);

        contentManager.onSaveInstanceState(outState);

    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        contentManager.onRestoreInstanceState(savedInstanceState);
    }

    private void setupViewPager(ViewPager viewPager) {

        pagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());

        pagerAdapter.addFragment(0, TAG_LABEL_OVERVIEW);

        pagerAdapter.addFragment(1, TAG_LABEL_DETAILS);

        viewPager.setAdapter(pagerAdapter);

        //updateFragmentsForFlowItem();

    }

[Edited]:

this is the AbstractActivity code:

public class AbstractKActivity extends AppCompatActivity {

protected int content_view = 0;

protected String mTitle = "";

protected TextView title;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    prepareInit();

    if (content_view != 0) {
        setContentView(content_view);
    }
    initToolbar();


    processIntent();

    init();

}

protected void initToolbar() {
    getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
    getSupportActionBar().setCustomView(R.layout.custom_actionbar);
    title=(TextView)findViewById(getResources().getIdentifier("action_bar_title", "id", getPackageName()));
    title.setText(mTitle);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
   // getSupportActionBar().setTitle(mTitle);

}


protected void processIntent() {

}

protected void init() {

}

protected void prepareInit() {

}

protected void setToolbarTitleText(String titleText) {
    mTitle = titleText;
    title.setText(titleText);
}

}

tabIndicator is not showing up properly(it is showing in the reverse way)

Answers (1)

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