Toast on button click-AGN HUB

 To show a Toast message on a button click in Android using Kotlin, follow these steps:

Steps:

1. Add a Button in the Layout XML: Define a Button in your activity_main.xml file.

2. <Button

3.     android:id="@+id/buttonToast"

4.     android:layout_width="wrap_content"

5.     android:layout_height="wrap_content"

6.     android:text="Show Toast"

7.     android:layout_gravity="center" />

8. Handle the Button Click in the Kotlin File: In your activity file (e.g., MainActivity.kt), set a click listener for the button to display the Toast.

9. import android.os.Bundle

10. import android.widget.Button

11. import android.widget.Toast

12. import androidx.appcompat.app.AppCompatActivity

13. 
    

14. class MainActivity : AppCompatActivity() {

15.     override fun onCreate(savedInstanceState: Bundle?) {

16.         super.onCreate(savedInstanceState)

17.         setContentView(R.layout.activity_main)

18. 
    

19.         // Find the button

20.         val buttonToast: Button = findViewById(R.id.buttonToast)

21. 
    

22.         // Set a click listener

23.         buttonToast.setOnClickListener {

24.             Toast.makeText(this, "Button Clicked!", Toast.LENGTH_SHORT).show()

25.         }

26.     }

27. }

Explanation:

• findViewById: Locates the button in the layout.

• setOnClickListener: Assigns a click event listener to the button.

• Toast.makeText: Creates and shows the toast message. Parameters: 

• this: The context.

• "Button Clicked!": The message to display.

• Toast.LENGTH_SHORT: Duration of the toast (short or long).

Result:

When you click the button, a Toast message saying "Button Clicked!" will appear briefly on the screen.