add message exercises

2018-08-23 18:09:15 +08:00
parent 3b8f57d02f
commit d43d7eaaf6
51 changed files with 1713 additions and 122 deletions
@@ -68,5 +68,10 @@
    
 }

+//计算文字的长度
+ (CGSize)sizeWithText:(NSString *)text font:(UIFont *)font maxSize:(CGSize)maxSize
+{
+    return [text boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:font} context:nil].size;
+}

@end