NSMutableAttributedString垂直對齊

Question

我有一個文本的橢圓路徑。對於填充路徑我使用NSMutableAttributedString：

UIFont *font = [UIFont fontWithName:@"font name" size:15]; 
NSMutableParagraphStyle *mutParaStyle=[[NSMutableParagraphStyle alloc] init]; 

[mutParaStyle setAlignment:NSTextAlignmentCenter]; 
[mutParaStyle setLineBreakMode:NSLineBreakByWordWrapping]; 

NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:font 
           ,NSFontAttributeName,mutParaStyle ,NSParagraphStyleAttributeName,nil]; 

NSMutableAttributedString *strText = [[NSMutableAttributedString alloc] initWithString:text attributes:attrsDictionary]; 

但是，這項工作只適用於水平文本對齊。我如何應用垂直對齊？

我有這樣的結果：

但我需要這樣的：

Answer 1

可是我不得不與垂直它工作正常，我試過了，下面是截圖讓我知道 如果我錯了，也低於是連接代碼： -

NSString *allTheText = [tv string]; 
NSFont *font = [NSFont fontWithName:@"Helvetica" size:24]; 
NSMutableParagraphStyle *mutParaStyle=[[NSMutableParagraphStyle alloc] init]; 

[mutParaStyle setAlignment:kCTTextAlignmentRight]; 
[mutParaStyle setLineBreakMode:NSLineBreakByWordWrapping]; 

NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:font 
           ,NSFontAttributeName,mutParaStyle ,NSParagraphStyleAttributeName,nil]; 

NSMutableAttributedString *strText = [[NSMutableAttributedString alloc] initWithString:allTheText attributes:attrsDictionary]; 
[tv .textStorage appendAttributedString:strText];