fixed the empty string case

ruz · May 28, 2011 · f6f2604 · f6f2604
1 parent ff5d566
commit f6f2604
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/UIKit/Classes/UIStringDrawing.m b/UIKit/Classes/UIStringDrawing.m
@@ -46,6 +46,14 @@ static CFArrayRef CreateCTLinesForAttributedString(NSAttributedString *attribute
 	CFMutableArrayRef lines = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
     CGSize drawSize = CGSizeZero;
 
+	if(attributedString.length < 1) {
+		if (renderSize) {
+			*renderSize = drawSize;
+		}
+
+		return lines;
+	}
+
 	NSDictionary *attributes = [attributedString attributesAtIndex:0 effectiveRange:NULL];
 	CTFontRef font = (CTFontRef) [attributes objectForKey:(id) kCTFontAttributeName];