Reuse Of Toast Object

activity_reuse_of_toast_object.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".ReuseOfToastObjectActivity">

    <Button
        android:id="@+id/btn_toast_it"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="Toast with one string"/>

    <Button
        android:id="@+id/btn_toast_it_two_strings"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="Toast two strings"/>

</LinearLayout>

ReuseOfToastObjectActivity.java

package com.udacity.myapplication;

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

public class ReuseOfToastObjectActivity extends AppCompatActivity {

    Toast toast;

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


        Button btnToast = findViewById(R.id.btn_toast_it);
        btnToast.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                // passing one input.
                doToast("Toast one string");

            }
        });


        Button btnToastTwo = findViewById(R.id.btn_toast_it_two_strings);
        btnToastTwo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                // passing 2 inputs.
                doToast("Toast with", " 2 strings");

            }
        });


    }



    /**
     * When the method is called just pass a string as input to show it in a toast.
     *
     * @param string is the string input to be shown in the toast.
     */
    public void doToast(String string){
        if (toast != null){
            toast.cancel();
        }
        toast = Toast.makeText(this, string, Toast.LENGTH_SHORT);
        toast.show();
    }

    /**
     * When the method is called you can pass two strings as input to show it in a toast.
     *
     * @param stringOne is the first string of two that you can pass as input.
     * @param stringTwo is the second string of two that you can pass as input.
     */
    public void doToast(String stringOne, String stringTwo){
        if (toast != null){
            toast.cancel();
        }
        toast = Toast.makeText(this, stringOne + stringTwo, Toast.LENGTH_SHORT);
        toast.show();
    }

}