Search⌘ K
AI Features
Home
Courses
Learn Dart: The First Step to Flutter

Solution: System Permission Decoder

Explore how to apply Dart's bitwise operators, including right shift and bitwise AND, to decode system permissions. Understand how these operators manipulate bits to extract meaningful flags, and learn to print the decoded results accurately.

We'll cover the following...
Dart
void main() {
  // The permission data is 114 (Binary: 0111 0010)
  int permissionData = 114;
  int departmentCode = permissionData >> 4;
  bool hasWriteAccess = (permissionData & 2) == 2;
  print("Department Code: $departmentCode");
  print("Write Access Granted: $hasWriteAccess");
}

Solution explanation

In the main.dart file:

    ...