1:基本設(shè)置

val tabTitles =arrayOf("最近七天收益","下屬會(huì)員充值","歷史收益")? //TabLayout的三個(gè)item

val list: MutableList = ArrayList()? ? ?//放置子view的集合

val incomeFragment = IncomeFragment()? //子view1

val myMemberRechargeFragment = MyMemberRechargeFragment()??//子view2

val incomeHistoryFragment = IncomeHistoryFragment()??//子view3

list.add(incomeFragment)? ?//添加子view1

list.add(myMemberRechargeFragment)??//添加子view2

list.add(incomeHistoryFragment)??//添加子view3

val adapter = MyViewPageAdapter(supportFragmentManager, list, tabTitles)? //設(shè)置adapter

content.setAdapter(adapter)? ?//設(shè)置adapter，content為ViewPager的id

tab.setupWithViewPager(content)? //設(shè)置Tab Layout與ViewPager聯(lián)動(dòng)

tab.setTabMode(TabLayout.MODE_FIXED)? //設(shè)置模式

2:adapter（MyViewPageAdapter）

public class MyViewPageAdapterextends FragmentPagerAdapter {

private List?list;

private String tabTitles[];

public MyViewPageAdapter(FragmentManager fm, List list,String tabTitles[]) {

super(fm);

this.list = list;

this.tabTitles = tabTitles;

}

@Override

? ? public Fragment getItem(int i) {

return list.get(i);

}

@Override

? ? public int getCount() {

return list.size();

}

@Override

? ? public CharSequence getPageTitle(int position) {

return tabTitles[position];

}

@Override

? ? public void destroyItem(ViewGroup container,int position, Object object) {

//super.destroyItem(container, position, object); 避免多出銷毀Fragment

? ? }

}

3:設(shè)置TabLayout默認(rèn)選中

content.setCurrentItem(type)? ?//content為ViewPager的id，type為需要選中的item

tab.getTabAt(type)!!.select()? ? //tab為TabLayout的id，type同上。