一:先看布局

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二：创建VierPagerAdapter

public classVierPagerAdapterextendsFragmentStatePagerAdapter{

privateListmFragment=newArrayList<>();

publicVierPagerAdapter(FragmentManagerfm){

super(fm);

initFragemnts();

}

private voidinitFragemnts(){

mFragment.add(newFragmentInfo("推荐",RecommendFragment.class));

mFragment.add(newFragmentInfo("排行",RankingFragment.class));

mFragment.add(newFragmentInfo("游戏",GameFragment.class));

mFragment.add(newFragmentInfo("分类",CategoryFragment.class));

}

@Override

publicFragmentgetItem(intposition){

try{

return(Fragment)mFragment.get(position).getFragment().newInstance();

}catch(InstantiationExceptione){

e.printStackTrace();

}catch(IllegalAccessExceptione){

e.printStackTrace();

}

return null;

}

@Override

public intgetCount(){

returnmFragment.size();

}

@Override

publicCharSequencegetPageTitle(intposition){

returnmFragment.get(position).getTitle();

}

}

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三：Viewpage设置adapter+Tablayout.setupWithViewPager(myViewpage)