Android Studio creating ViewPager -

i have button on mainactivity opens secondactivity. secondactivity viewpager, , have 2 fragment classes (fragment1, fragment2) , 2 fragment xml, each textview inside. cannot work out how put 2 fragment inside viewpage using fragmentpageradapter can slide 1 fragment another. can please show/help me?

mainactivity

        button button1 = (button) findviewbyid(r.id.buttoncreateworkout);         button1.setonclicklistener(new view.onclicklistener() {         public void onclick(view arg0) {             startactivity(new intent(mainactivity.this, secondactivity.class));          } 

second_activity.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent">       <android.support.v4.view.viewpager         xmlns:android="http://schemas.android.com/apk/res/android"         android:id="@+id/pager"         android:layout_width="match_parent"         android:layout_height="match_parent">      //     //how add 2 fragments here?     //if right place     //      </android.support.v4.view.viewpager> </linearlayout> 

also, able show me how use fragmentpageradapter switch between 2 fragments?

dont add fragments inside de viewpager xml tag, add fragments code.fragmentpageradapter handle this. should follow tutorial correct implementation: create swype viewa

the pagerfragmentadapter should this, adapter handle fragment creation , switch fragment:

public class democollectionpageradapter extends fragmentstatepageradapter { public democollectionpageradapter(fragmentmanager fm) {     super(fm); }  @override public fragment getitem(int i) {     fragment fragment = new demoobjectfragment();     bundle args = new bundle();     // our object integer :-p     args.putint(demoobjectfragment.arg_object, + 1);     fragment.setarguments(args);     return fragment; }  @override public int getcount() {     return 100; }  @override public charsequence getpagetitle(int position) {     return "object " + (position + 1); } 

}

inside getitem method, create fragment depending on value of index.