README2.md

TabLayout简单的使用 Tablayout 和 ViewPager 创建底部导航栏

<android.support.v4.view.ViewPager android:layout_width="match_parent" android:layout_height="0dp" android:id="@+id/view_pager" android:layout_weight="1"> </android.support.v4.view.ViewPager>

<android.support.design.widget.TabLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/tab"
    app:tabBackground="@color/tab_background"
    app:tabMode="fixed"
    style="@style/MyCustomTabLayout">
</android.support.design.widget.TabLayout>

 private void initView() {
    String[] tabTitle = getResources().getStringArray(R.array.tab_titles);
    List<Fragment> fragmentList = new ArrayList<>();
    fragmentList.add(new BlankFragment1());
    fragmentList.add(new BlankFragment2());
    fragmentList.add(new BlankFragment3());
    fragmentList.add(new BlankFragment4());
    fragmentList.add(new BlankFragment5());
    ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
    viewPager.setAdapter(new MyFragmentPagerAdapter(getSupportFragmentManager(), fragmentList, tabTitle));

    viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

        }

        @Override
        public void onPageSelected(int position) {

        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tab);
    tabLayout.setupWithViewPager(viewPager);
    for (int i = 0; i < tabLayout.getTabCount(); i++) {
        TabLayout.Tab tab = tabLayout.getTabAt(i);
        Drawable d = null;
        switch (i) {
            case 0:
                d = getResources().getDrawable(R.drawable.tab1);
                break;
            case 1:
                d = getResources().getDrawable(R.drawable.tab1);
                break;
            case 2:
                d = getResources().getDrawable(R.drawable.tab1);
                break;
            case 3:
                d = getResources().getDrawable(R.drawable.tab1);
                break;
            case 4:
                d = getResources().getDrawable(R.drawable.tab1);
                break;
        }
        tab.setIcon(d);
    }

}

  private List<Fragment> fragmentList;
private String[] titles;


public MyFragmentPagerAdapter(FragmentManager fragmentManager, List<Fragment> fragmentList, String[] titles) {
    super(fragmentManager);
    this.fragmentList = fragmentList;
    this.titles = titles;
}

@Override
public Fragment getItem(int position) {
    return fragmentList.get(position);
}

@Override
public int getCount() {
    return fragmentList.size();
}

@Override
public CharSequence getPageTitle(int position) {
    return titles[position];
}