Вы должны использовать NSLineBreakByTruncatingTail
Ответ 2
Версия Swift 3:
lineBreakMode = .byTruncatingTail
Ответ 3
typedef NS_ENUM(NSInteger, NSLineBreakMode) { /* What to do with long lines */
NSLineBreakByWordWrapping = 0, /* Wrap at word boundaries, default */
NSLineBreakByCharWrapping, /* Wrap at character boundaries */
NSLineBreakByClipping, /* Simply clip */
NSLineBreakByTruncatingHead, /* Truncate at head of line: "…wxyz" */
NSLineBreakByTruncatingTail, /* Truncate at tail of line: "abcd…" */
NSLineBreakByTruncatingMiddle /* Truncate middle of line: "ab…yz" */
} NS_ENUM_AVAILABLE_IOS(6_0);
// we use now!