New BlurAmount class, adjusted required propType

ios/BlurAmount.m

@@ -0,0 +1,44 @@
+#import <UIKit/UIKit.h>
+#import <objc/runtime.h>
+
+@interface UIBlurEffect (Protected)
+@property (nonatomic, readonly) id effectSettings;
+@end
+
+@interface BlurAmount : UIBlurEffect
+@property (nonatomic, copy) NSNumber *blurAmount;
+@end
+
+@implementation BlurAmount
+
+  NSNumber *localBlurAmount;
+
++ (instancetype)effectWithStyle:(UIBlurEffectStyle)style
+{
+    id result = [super effectWithStyle:style];
+    object_setClass(result, self);
+
+    return result;
+}
+
+- (id)effectSettings
+{
+    id settings = [super effectSettings];
+    [settings setValue:@localBlurAmount forKey:@"blurRadius"];
+    return settings;
+}
+
+- (id)copyWithZone:(NSZone*)zone
+{
+    id result = [super copyWithZone:zone];
+    object_setClass(result, [self class]);
+    return result;
+}
+
++ (id)updateBlurAmount:(NSNumber*)blurAmount
+{
+    localBlurAmount = blurAmount;
+    return blurAmount;
+}
+
+@end

ios/BlurView.h

@@ -3,5 +3,6 @@
 @interface BlurView : UIView
 
 @property (nonatomic, copy) NSString *blurType;
+@property (nonatomic, copy) NSNumber *blurAmount;
 
-@end
+@end

ios/BlurView.m

@@ -1,7 +1,10 @@
 #import "BlurView.h"
+#import "BlurAmount.m"
+
 
 @implementation BlurView {
   UIVisualEffectView *_visualEffectView;
+  BlurView *blurEffect;
 }
 
 - (void)setBlurType:(NSString *)blurType
@@ -10,25 +13,28 @@
     [_visualEffectView removeFromSuperview];
   }
 
-  UIBlurEffect *blurEffect;
-
   if ([blurType isEqual: @"xlight"]) {
-    blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight];
+    blurEffect = [BlurAmount effectWithStyle:UIBlurEffectStyleExtraLight];
   } else if ([blurType isEqual: @"light"]) {
-    blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
+    blurEffect = [BlurAmount effectWithStyle:UIBlurEffectStyleLight];
   } else if ([blurType isEqual: @"dark"]) {
-    blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
+    blurEffect = [BlurAmount effectWithStyle:UIBlurEffectStyleDark];
   } else {
-    blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
+    blurEffect = [BlurAmount effectWithStyle:UIBlurEffectStyleDark];
   }
 
-  _visualEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
 }
 
--(void)layoutSubviews
+- (void)setBlurAmount:(NSNumber *)blurAmount
+{
+    blurEffect = [BlurAmount updateBlurAmount:blurAmount];
+}
+
+
+- (void)layoutSubviews
 {
   [super layoutSubviews];
-
+  _visualEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
   _visualEffectView.frame = self.bounds;
   [self insertSubview:_visualEffectView atIndex:0];
 }

src/BlurView.ios.js

@@ -17,6 +17,7 @@ class BlurView extends Component {
 
 BlurView.propTypes = {
   blurType: PropTypes.string,
+  blurAmount: PropTypes.number,
 };
 
 const NativeBlurView = requireNativeComponent('BlurView', BlurView);