Adjusting Apps for Different Screen Size & Platforms

• Changing layouts based on screen sizes
• Detecting & using screen and platform information
• Building adaptive widgets

12/7 131-135

how to lock the device orientation

services.dart - Platform services exposed to Flutter apps.

ensureInitialized - initialize the binding to ensure it works in consecutive way as intended.

Update UI up to available space

// expenses.dart

*final* *width* *=* MediaQuery.of(*context*).*size*.*width*;

When rotating, flutter rebuilds the component automatically.