BMI Advance Calculator

📱 App Overview: This is a BMI (Body Mass Index) Calculator Android App that supports both Metric and Imperial units. It calculates BMI based on user input (age, gender, height, and weight), displays the result, categorizes it, and provides relevant health tips. 🔧 Key Functionalities: 1. Unit Switching (Metric ↔ Imperial): Toggle between Metric (cm/kg) and Imperial (ft/in/lbs) using a SwitchMaterial. UI fields update accordingly: Metric: shows height in cm. Imperial: shows feet and inches fields. 2. Input Validation: Validates: Age (between 2–120) Weight: Metric: 2–500 kg Imperial: 5–1100 lbs Height: Metric: 50–300 cm Imperial: 1–10 ft and 0–11 inches Displays appropriate error messages if validation fails. 3. BMI Calculation: Metric formula: BMI = weight (kg) / (height in meters)^2 Imperial formula: BMI = (weight (lbs) × 703) / (height in inches)^2 4. BMI Categories: Based on BMI value: < 16 → Severe Thinness 16–16.9 → Moderate Thinness 17–18.4 → Mild Thinness 18.5–24.9 → Normal 25–29.9 → Overweight 30–34.9 → Obese Class I 35–39.9 → Obese Class II 40+ → Obese Class III 5. Health Tips: Each BMI category shows related health advice (e.g., "Eat more nutritious food", "Seek medical help", etc.). 6. Result Display: Displays: Calculated BMI User's Age and Gender BMI Category Health Tip