DoubleBackToCloseApp #

A lightweight and flexible Flutter widget for Android that prevents accidental app exits by requiring a double-tap on the back button.

Features #

• Modern API: Uses PopScope (compatible with Flutter 3.16+).
• Customizable: Provide your own UI feedback (SnackBar, Toast, or Lottie).
• Conditional: Control exactly when the interceptor is active (e.g., only on the Home screen).
• Platform Aware: Automatically disables itself on iOS/macOS to respect system gestures.

Installation #

Copy the double_back_to_close_app.dart file into your project or add it to your local packages.

Usage #

Simple Implementation #

DoubleBackToCloseApp(
  child: Scaffold(
    body: Center(child: Text("Home Screen")),
  ),
)
DoubleBackToCloseApp(
  canPopCondition: () => myRouter.currentPath == '/main',
  onFirstPop: (context) {
    // Trigger custom snackbar and haptic feedback
    HapticFeedback.lightImpact();
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text("Tap once more to leave")),
    );
  },
  child: const MainNavigator(),
)