MainActivity.java

package com.example.nagendra.snackbar;

import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void snackFun(View view) {
        Snackbar mySnackbar = Snackbar.make(view, "A message on snackbar", Snackbar.LENGTH_LONG);
        mySnackbar.show();
    }
}