feat!: add onGeneratePages

[felangel]

Status

READY

Breaking Changes

YES

Description

• BREAKING: replace builder with onGeneratePages
• fix: navigation animation
• fix: system back navigation

Before

class OnboardingFlow extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return FlowBuilder<OnboardingSteps>(
      state: OnboardingSteps.step1,
      builder: (context, state) {
        switch (state) {
          case OnboardingSteps.step1:
            return [Step1.page()];
          case OnboardingSteps.step2:
            return [Step1.page(), Step2.page()];
          case OnboardingSteps.step3:
            return [Step1.page(), Step2.page(), Step3.page()];
          default:
            return [Step1.page()];
        }
      },
    );
  }
}

After

class OnboardingFlow extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return FlowBuilder<OnboardingSteps>(
      state: OnboardingSteps.step1,
      onGeneratePages: (state) {
        switch (state) {
          case OnboardingSteps.step1:
            return [Step1.page()];
          case OnboardingSteps.step2:
            return [Step1.page(), Step2.page()];
          case OnboardingSteps.step3:
            return [Step1.page(), Step2.page(), Step3.page()];
          default:
            return [Step1.page()];
        }
      },
    );
  }
}

Type of Change

• [ ] ✨ New feature (non-breaking change which adds functionality)
• [X] 🛠️ Bug fix (non-breaking change which fixes an issue)
• [X] ❌ Breaking change (fix or feature that would cause existing functionality to change)
• [ ] 🧹 Code refactor
• [ ] ✅ Build configuration change
• [ ] 📝 Documentation
• [ ] 🗑️ Chore
• [ ] 🧪 Testing