android - Add tabs in a View Pager -

how can add tabs swipeview fragments?

here oncreate method of main activity in 2 fragments initialized:

  myfragmentpageradapter pageradapter;   /**  * pager adapter, provides pages view pager widget.  */ viewpager pager = null; myfragmentpageradapter adapter = null;  @override protected void oncreate(bundle arg0) {     super.oncreate(arg0);     this.setcontentview(r.layout.activity_main);      // instantiate viewpager     this.pager = (viewpager) this.findviewbyid(r.id.pager);      // set custom animation     this.pager.setpagetransformer(true, new depthpagertransformer());      // create adapter fragments show on viewpager     this.adapter = new myfragmentpageradapter(             getsupportfragmentmanager());     this.adapter.addfragment(inactivitypagefragment.newinstance(getresources()             .getcolor(r.color.red), 0));     this.adapter.addfragment(listactivitiespagefragment.newinstance(getresources()             .getcolor(r.color.white), 1));     this.pager.setadapter(adapter); }