Android Tip Calculator

• Input field for the bill amount
• SeekBar to select tip percentage from 0 to 30
• Live display of tip amount and total bill
• Handles empty or invalid input gracefully

Follow these steps in order. Each one builds on the previous.

1. Step 1

   Create a new Android project in Android Studio with Kotlin

2. Step 2

   Build the layout with EditText, SeekBar, and TextViews

3. Step 3

   Enable View Binding in build.gradle

4. Step 4

   Add a TextWatcher to the EditText to react to input changes

5. Step 5

   Add a SeekBar.OnSeekBarChangeListener for the slider

6. Step 6

   Calculate tip and total on every change event

7. Step 7

   Display results and handle the empty-input edge case

• Android Kotlin Fundamentals
• Kotlin docs
• Android View Binding