custom dialog

MainActivity.java

package com.example.putuguna.customdialog;

import android.app.Dialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    private Button buttonOpenDialog;

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

        buttonOpenDialog = (Button) findViewById(R.id.button_openDialog);
        buttonOpenDialog.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                popUp();
            }
        });
    }

    private void popUp(){
        final Dialog dialog = new Dialog(this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setContentView(R.layout.view_register);
        Button cancel = (Button) dialog.findViewById(R.id.button_cancel);
        Button save = (Button) dialog.findViewById(R.id.button_save);

        dialog.show();

        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
                Toast.makeText(MainActivity.this, "Cancel",Toast.LENGTH_LONG).show();
            }
        });

        save.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
                Toast.makeText(MainActivity.this, "Save",Toast.LENGTH_LONG).show();
            }
        });




    }
}