GCD定时器验证码倒计时

摘要： - (IBAction)butClick:(UIButton *)but { dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); _timer= dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0... 阅读全文
posted @ 2017-08-07 11:16 JX-Mr.D 阅读(151) 评论(0) 推荐(0)

给键盘添加工具栏（按钮）

摘要： UIToolbar *keyboardDoneButtonView = [[UIToolbar alloc] init]; [keyboardDoneButtonView sizeToFit]; UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done" ... 阅读全文
posted @ 2017-08-07 10:28 JX-Mr.D 阅读(369) 评论(0) 推荐(0)