content: package xushuai.viewpager_indicator_demo;
  
  import android.support.v4.app.Fragment;
  import android.support.v4.app.FragmentManager;
  import android.support.v4.app.FragmentPagerAdapter;
  
  import com.viewpagerindicator.IconPagerAdapter;
  
  class UnderLineFragmentAdapter extends FragmentPagerAdapter{
  
      protected static  String[] CONTENT = new String[] { "This", "Is", "A" };
  
      private int mCount = CONTENT.length;
  
      public UnderLineFragmentAdapter(FragmentManager fm) {
          super(fm);
      }
  
      public void  setContent(String[] content){
          CONTENT = content;
      }
  
      @Override
      public Fragment getItem(int position) {
          return ListFragment.newInstance(CONTENT[position % CONTENT.length]);
      }
  
      @Override
      public int getCount() {
          return mCount;
      }
  
      @Override
      public CharSequence getPageTitle(int position) {
        return UnderLineFragmentAdapter.CONTENT[position % CONTENT.length];
      }
  
      public void setCount(int count) {
          if (count > 0 && count <= 10) {
              mCount = count;
              notifyDataSetChanged();
          }
      }
  }