fix(ios): restored borderRadius setter (#11951)

* fix(ios): restored setter

* test: added unit test

* test(ios): make it ios specific

iphone/TitaniumKit/TitaniumKit/Sources/API/TiUIView.m

@@ -674,9 +674,11 @@ - (void)addCornerRadius:(NSArray *)radiusArray toLayer:(CALayer *)viewLayer
     bottomLeftRadius = radius;
     topRightRadius = radius;
   } else if (radiusArray.count == 1) {
-    // For same corner radius, no need to create bezier path. Use CALayer's cornerRadius.
-    viewLayer.cornerRadius = [self radiusFromObject:radiusArray[0]];
-    return;
+    CGFloat radius = [self radiusFromObject:radiusArray[0]];
+    topLeftRadius = radius;
+    topRightRadius = radius;
+    bottomRightRadius = radius;
+    bottomLeftRadius = radius;
   }
 
   CAShapeLayer *shapeLayer = [[CAShapeLayer alloc] initWithLayer:viewLayer];
@@ -727,6 +729,11 @@ - (void)updateBorderRadius:(id)radius
   [self updateClipping];
 }
 
+- (void)setBorderRadius_:(id)radius
+{
+  [self updateBorderRadius:radius];
+}
+
 - (void)setAnchorPoint_:(id)point
 {
   self.layer.anchorPoint = [TiUtils pointValue:point];

tests/Resources/ti.ui.view.test.js

@@ -1092,6 +1092,39 @@ describe('Titanium.UI.View', function () {
 			win.add(outerView);
 			win.open();
 		});
+
+		it.ios('set property post layout', finish => {
+			win = Ti.UI.createWindow({ backgroundColor: 'blue' });
+			const outerView = Ti.UI.createView({
+				width: '90px',
+				height: '90px',
+				backgroundColor: 'green'
+			});
+			const view = Ti.UI.createView({
+				width: '60px',
+				height: '60px',
+				backgroundColor: 'yellow'
+			});
+
+			win.addEventListener('postlayout', function postlayout() {
+				win.removeEventListener('postlayout', postlayout); // only run once
+				try {
+					view.borderRadius = [ '12px', 12 ];
+					should(view.borderRadius).be.an.Array();
+					should(view.borderRadius.length).eql(2);
+					should(view.borderRadius).eql([ '12px', 12 ]);
+					// should be the exact same as above
+					should(outerView).matchImage(`snapshots/borderRadius12px_12_${density}x.png`);
+				} catch (err) {
+					return finish(err);
+				}
+				finish();
+			});
+
+			outerView.add(view);
+			win.add(outerView);
+			win.open();
+		});
 	});
 
 	it.android('touchFeedback', finish => {