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Android Button

Android Button:

The Button is a user interface element that represents a clickable movement.

It's a part of the Android user interface factors and is generally used to capture person input or trigger moves in response to user interactions.

A button will have text, an icon, or both, and users engage with it by tapping or clicking.

Example:

                                    
                                        <?xml version="1.0" encoding="utf-8"?>
                                            <RelativeLayout 
                                                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"
                                                tools:context=".ButtonExample">
                                            
                                                <Button
                                                   android:id="@+id/b1"
                                                   android:layout_width="wrap_content"
                                                   android:layout_height="wrap_content"
                                                   android:text="Button"
                                                   android:background="@color/colorGreen"
                                                   android:textColor="@color/colorWhite"
                                                   android:layout_centerInParent="true"/>
                                           
                                        </RelativeLayout>

                                    
                                        package com.example.widgets;
                                            
                                        import android.os.Bundle;
                                        import android.view.View;
                                        import android.widget.Button;
                                        import android.widget.Toast;
                                        import androidx.appcompat.app.AppCompatActivity;
                                            
                                        public class ButtonExample extends AppCompatActivity {
                                           
                                               Button button;
                                           
                                               @Override
                                               protected void onCreate(Bundle savedInstanceState) {
                                                   super.onCreate(savedInstanceState);
                                                   setContentView(R.layout.activity_button_example);
                                           
                                                   button=(Button)findViewById(R.id.b1);
                                                   button.setOnClickListener(new View.OnClickListener() {
                                                       @Override
                                                       public void onClick(View v) {
                                                           Toast.makeText(ButtonExample.this,"Button clicked by you",Toast.LENGTH_SHORT).show();
                                                       }
                                                   });
                                                }
                                        }

                                    
                                        package com.example.widgets

                                        import android.os.Bundle
                                        import android.view.View
                                        import android.widget.Button
                                        import android.widget.Toast
                                        import androidx.appcompat.app.AppCompatActivity
                                        
                                        class ButtonExample : AppCompatActivity() {
                                        
                                            private lateinit var button: Button
                                        
                                            override fun onCreate(savedInstanceState: Bundle?) {
                                                super.onCreate(savedInstanceState)
                                                setContentView(R.layout.activity_button_example)
                                        
                                                button = findViewById(R.id.b1)
                                                button.setOnClickListener {
                                                    Toast.makeText(this@ButtonExample, "Button clicked by you", Toast.LENGTH_SHORT).show()
                                                }
                                            }
                                        }

Output