实现加大UIButton/UITextField 的点击范围

 1 class UITextFieldEx : UITextField {
 2 
 3     @IBInspectable
 4     var localPlaceholder: String? {
 5         didSet {
 6             if let text = localPlaceholder {
 7                 self.placeholder = NSLocalizedString(text, comment: text)
 8             }
 9         }
10     }
11     
12 }
13 
14 class UITextFieldPointInside : UITextFieldEx {
15     
16     override func pointInside(point: CGPoint, withEvent event: UIEvent?) -> Bool {
17         var bounds = self.bounds
18         let widthDelta = max(44.0 - bounds.size.width, 0)
19         let heightDelta = max(44.0 - bounds.size.height, 0)
20         bounds = CGRectInset(bounds, -4 * widthDelta, -4 * heightDelta)
21         return CGRectContainsPoint(bounds, point)
22     }
23     
24 }

 1 class UIButtonEx : UIButton {
 2 
 3 
 4     @IBInspectable
 5     var localTitle: String? {
 6         didSet {
 7             if let text = localTitle {
 8                 self.setTitle(NSLocalizedString(text, comment: text), forState: UIControlState.Normal)
 9             }
10         }
11     }
12     
13     
14 }
15 
16 class UIButtonPointInside : UIButtonEx {
17 
18     override func pointInside(point: CGPoint, withEvent event: UIEvent?) -> Bool {
19         var bounds = self.bounds
20         let widthDelta = max(44.0 - bounds.size.width, 0)
21         let heightDelta = max(44.0 - bounds.size.height, 0)
22         bounds = CGRectInset(bounds, -0.5 * widthDelta, -0.5 * heightDelta)
23         return CGRectContainsPoint(bounds, point)
24     }
25 
26 }