package com.xypower.mpapp.video; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import com.xypower.mpapp.R; public class VideoActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_video); if (null == savedInstanceState) { getSupportFragmentManager().beginTransaction() .replace(R.id.container, VideoFragment.newInstance()) .commit(); } } }