package com.codace.circularrevealeffect; import android.content.Intent; import android.support.design.widget.FloatingActionButton; import android.support.v4.app.ActivityOptionsCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final FloatingActionButton button = findViewById(R.id.fab); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(MainActivity.this, NextActivity.class)); } }); } }