Java tutorial
//package com.java2s; //License from project: Apache License import android.support.annotation.NonNull; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; public class Main { public static void addFragmentToActivity(@NonNull FragmentManager fragmentManager, int frameId, @NonNull Fragment fragment) { FragmentTransaction transaction = fragmentManager.beginTransaction(); transaction.add(frameId, fragment); transaction.commit(); } public static void addFragmentToActivity(@NonNull FragmentManager fragmentManager, int frameId, @NonNull Fragment fragment, String tag) { FragmentTransaction transaction = fragmentManager.beginTransaction(); transaction.add(frameId, fragment, tag); transaction.commit(); } }