SlidingTabsFragment.java

package com.markzhai.lyrichere.ui;

import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.markzhai.lyrichere.R;

import java.util.Locale;

public class SlidingTabsFragment extends Fragment {

    protected TabLayout mTabLayout;
    private ViewPager mViewPager;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_sliding_tabs, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        mViewPager = (ViewPager) view.findViewById(R.id.viewpager);
        mViewPager.setAdapter(new SectionsPagerAdapter(getActivity().getSupportFragmentManager()));
        mTabLayout = (TabLayout) view.findViewById(R.id.sliding_tabs_layout);
        mTabLayout.setupWithViewPager(mViewPager);
        setupTabTextColor();
    }

    private void setupTabTextColor() {
        int tabTextColor = getResources().getColor(R.color.titleTextColor);
        mTabLayout.setTabTextColors(tabTextColor, tabTextColor);
    }

    public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            Fragment fragment = null;
            switch (position) {
                case 0:
                    fragment = LyricExplorerFragment.newInstance(1);
                    break;
                case 1:
                    fragment = LyricExplorerFragment.newInstance(2);
                    break;
                case 2:
                    fragment = DownloadFragment.newInstance();
                    break;
            }
            return fragment;
        }

        @Override
        public int getCount() {
            // Show 3 total pages.
            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            Locale l = Locale.getDefault();
            switch (position) {
                case 0:
                    return getString(R.string.title_section1).toUpperCase(l);
                case 1:
                    return getString(R.string.title_section2).toUpperCase(l);
                case 2:
                    return getString(R.string.title_section3).toUpperCase(l);
            }
            return null;
        }
    }
}