// 1. Transparency control
// Values range from 0.0 (fully transparent) to 1.0 (fully opaque)
view.alpha = 0.5

// 2. Clipping behavior
// When enabled, content outside the view's bounds is not rendered
view.clipsToBounds = true

// 3. Visibility toggle
// Hides or shows the entire view without affecting layout
view.isHidden = true

// 4. Interaction enablement
// Disabling prevents touch events, gesture recognizers, and hit testing
view.isUserInteractionEnabled = false

// 5. Identifier tag
// Integer value for runtime identification (e.g., in delegate callbacks)
view.tag = 1001

// 6. Exclusive touch handling
// Ensures only this view receives all touches during a single gesture sequence
view.isExclusiveTouch = true

// 7. Frame rectangle
// Position and size relative to the superview's coordinate system
view.frame = CGRect(x: 20, y: 40, width: 100, height: 60)

// 8. Center point
// Adjusts position by moving the view’s center coordinate
view.center = CGPoint(x: 150, y: 200)

// 9. Bounds rectangle
// Defines internal coordinate space; origin is always (0, 0), size affects rendering area
view.bounds = CGRect(origin: .zero, size: CGSize(width: 120, height: 80))

// 10. Transform matrix
// Applies affine transformations like scaling and rotation
view.transform = CGAffineTransform(scaleX: 1.2, y: 0.8)
view.transform = CGAffineTransform(rotationAngle: .pi / 4)
view.transform = CGAffineTransform(scaleX: 1.5, y: 1.5).rotated(by: -.pi / 6)

// 11. Superview reference
// Read-only access to parent container
if let parent = view.superview {
    print("Parent view exists")
}

// 12. Window reference
// Read-only access to the hosting UIWindow instance
if let window = view.window {
    print("View is attached to a window")
}

// Note: superview and window are nil in viewDidLoad because the view hierarchy isn't yet added to the window.
// They become available after viewDidAppear(_:) is called.

// 13. Subview auto-resizing policy
// Controls whether child views automatically adjust when the parent resizes
view.autoresizesSubviews = false

// 14. Autoresizing mask
// Specifies how the view adjusts its frame when its superview changes size
view.autoresizingMask = [.flexibleWidth, .flexibleBottomMargin]

// 15. Content display mode
// Determines how content (e.g., images) fits within the bounds
view.contentMode = .scaleAspectFit
// Other options:
// .scaleToFill, .scaleAspectFill, .redraw, .center, .top, .bottom, etc.

// 16. Background color
// Sets the fill color behind subviews
view.backgroundColor = UIColor.systemBlue.withAlphaComponent(0.7)

View Hierarchy Managemant Methods

// Add a new subview
containerView.addSubview(childView)

// Reorder subviews
containerView.bringSubviewToFront(anotherView)
containerView.sendSubviewToBack(backgroundView)

// Remove from hierarchy
childView.removeFromSuperview()

// Insert at specific index
containerView.insertSubview(newView, at: 2)

// Insert relative to another view
containerView.insertSubview(newView, aboveSubview: existingView)
containerView.insertSubview(newView, belowSubview: existingView)

// Swap positions of two subviews by index
containerView.exchangeSubview(at: 0, withSubviewAt: 3)