How to Create a Button and Handle On Click Listener in App | Android Studio Tutorials 2022

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Create a button and handle on click listener in Android Studio

activity_main.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:gravity="center"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Cick Button" />

</LinearLayout>

MainActivity.java

package com.usmtip.myapplication;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;



public class MainActivity extends AppCompatActivity {


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




        //initialize
        Button mButton = (Button)findViewById(R.id.button);
        //handle onClick
        mButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //display toast you can do anything you want onClick here
                Toast.makeText(MainActivity.this, "Button is Clicked", Toast.LENGTH_SHORT).show();
            }
        });

    }
}