辊式打印机在iOS 9中提供额外的空白空间_Ios_Objective C_Airprint

辊式打印机在iOS 9中提供额外的空白空间

ios objective-c

辊式打印机在iOS 9中提供额外的空白空间,ios,objective-c,airprint,Ios,Objective C,Airprint,我用这个方法, - (CGFloat)printInteractionController:(UIPrintInteractionController *)printInteractionController cutLengthForPaper:(UIPrintPaper *)paper 确定页面的高度。在iOS 9（iOS）之前运行良好

我用这个方法,

- (CGFloat)printInteractionController:(UIPrintInteractionController *)printInteractionController cutLengthForPaper:(UIPrintPaper *)paper

确定页面的高度。在iOS 9（iOS）之前运行良好