Add support for IB_DESIGNABLE

alexgarbarev · Dec 11, 2014 · 2508a61 · 2508a61
1 parent 35f5bd0
commit 2508a61
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Showing 2 changed files with 38 additions and 14 deletions.
diff --git a/UIView+NestedXib.h b/UIView+NestedXib.h
@@ -8,8 +8,14 @@
 
 #import <UIKit/UIKit.h>
 
+IB_DESIGNABLE
 @interface UIView (NestedXib)
 
 + (NSString *)xibName;
 
+- (void)drawInterfaceBuilderRect:(CGRect)rect;
+
 @end
+
+//Put this into your custom class implementation
+#define IB_DRAW - (void)drawRect:(CGRect)rect { [self drawInterfaceBuilderRect:rect]; }
diff --git a/UIView+NestedXib.m b/UIView+NestedXib.m
@@ -15,23 +15,21 @@ @implementation UIView (NestedXib)
 static NSMutableSet *loadingXibs;
 static NSArray *propertiesToTransfer;
 
-IMP originalImp;
+id(*originalImp)(id, SEL, NSCoder *);
 
 + (void)load
 {
     IMP customImp = class_getMethodImplementation([UIView class], @selector(nested_xib_awakeAfterUsingCoder:));
     Method originalMethod = class_getInstanceMethod([UIView class], @selector(awakeAfterUsingCoder:));
 
-    originalImp = method_setImplementation(originalMethod, customImp);
+    originalImp = (id(*)(id,SEL,NSCoder*))method_setImplementation(originalMethod, customImp);
 }
 
 + (void)initialize
 {
     loadingXibs = [NSMutableSet new];
 
-    propertiesToTransfer = @[@"backgroundColor", @"frame", @"opaque", @"clipsToBounds", @"autoresizesSubviews",
-                             @"autoresizingMask", @"hidden", @"clearsContextBeforeDrawing", @"tintColor", @"alpha",
-                             @"exclusiveTouch", @"userInteractionEnabled", @"contentMode"];
+    propertiesToTransfer = @[@"frame", @"autoresizesSubviews", @"autoresizingMask", @"hidden", @"userInteractionEnabled", @"translatesAutoresizingMaskIntoConstraints"];
     [super initialize];
 }
 
@@ -61,18 +59,13 @@ - (id)nested_xib_awakeAfterUsingCoder:(NSCoder *)aDecoder
 + (NSString *)xibName
 {
     NSString *guessName = NSStringFromClass([self class]);
-    if ([[NSBundle mainBundle] pathForResource:guessName ofType:@"nib"]) {
+    if ([[NSBundle bundleForClass:[self class]] pathForResource:guessName ofType:@"nib"]) {
         return guessName;
     } else {
         return nil;
     }
 }
 
-+ (NSArray *)customProperties
-{
-    return @[];
-}
-
 + (BOOL)isLoadingXib:(NSString *)name
 {
     return [loadingXibs containsObject:name];
@@ -92,9 +85,7 @@ + (id)viewFromXib:(NSString *)xibName originalView:(UIView *)original
 
 + (void)transferPropertiesFromView:(UIView *)src toView:(UIView *)dst
 {
-    //Transferring autolayout
-    dst.translatesAutoresizingMaskIntoConstraints = NO;
-
+    //Transferring autolayout    
     for (NSLayoutConstraint *constraint in src.constraints) {
         BOOL replaceFirstItem = [constraint firstItem] == src;
         BOOL replaceSecondItem = [constraint secondItem] == src;
@@ -113,5 +104,32 @@ + (void)transferPropertiesFromView:(UIView *)src toView:(UIView *)dst
     }
 }
 
+- (void)drawInterfaceBuilderRect:(CGRect)rect
+{
+    NSString *xibName = [[[self class] xibName] stringByAppendingPathExtension:@"xib"];
+
+    if (xibName) {
+
+        CGContextRef context = UIGraphicsGetCurrentContext();
+
+        [[UIColor colorWithWhite:0.93 alpha:1] setFill];
+
+        CGContextFillRect(context, self.bounds);
+
+        UILabel *label = [[UILabel alloc] initWithFrame:self.bounds];
+        label.lineBreakMode = NSLineBreakByWordWrapping;
+        label.numberOfLines = 0;
+        label.textAlignment = NSTextAlignmentCenter;
+        label.textColor = [UIColor colorWithWhite:0.78 alpha:1];
+
+        UIFont *baseFont = [UIFont fontWithName:@"HelveticaNeue-CondensedBold" size:33];
+        UIFont *subtitleFont = [baseFont fontWithSize:24];
+        NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"Nested Xib\n" attributes:@{NSFontAttributeName : baseFont}];
+        [string appendAttributedString:[[NSAttributedString alloc] initWithString:xibName attributes:@{NSFontAttributeName : subtitleFont}]];
+        label.attributedText = string;
+
+        [label drawRect:self.bounds];
+    }
+}
 
 @end