Iphone 如何在iOS中打印照片?
我需要打印照片使用AirPrinter和已经编码,但我有一个与照片大小的问题。 打印照片后,我可以看到输出照片尺寸太大-正确地说,我想打印一张6英寸(4*6英寸)的照片 我使用佳能MG3260作为空气打印机 如果我能解决这个问题,请帮助我Iphone 如何在iOS中打印照片?,iphone,ios,airprint,Iphone,Ios,Airprint,我需要打印照片使用AirPrinter和已经编码,但我有一个与照片大小的问题。 打印照片后,我可以看到输出照片尺寸太大-正确地说,我想打印一张6英寸(4*6英寸)的照片 我使用佳能MG3260作为空气打印机 如果我能解决这个问题,请帮助我 截图 代码 -(void)printPhotoWithImage:(UIImage *)image { NSData *myData = UIImageJPEGRepresentation(image, 1.f); UIPrintInteractionC
- 截图
- 代码
}-(void)printPhotoWithImage:(UIImage *)image { NSData *myData = UIImageJPEGRepresentation(image, 1.f); UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController]; if (pic && [UIPrintInteractionController canPrintData:myData]) { pic.delegate = self; UIPrintInfo *pinfo = [UIPrintInfo printInfo]; pinfo.outputType = UIPrintInfoOutputPhoto; pinfo.jobName = @"My Photo"; pinfo.duplex = UIPrintInfoDuplexLongEdge; pic.printInfo = pinfo; pic.showsPageRange = YES; pic.printingItem = myData; pic.printFormatter = format; [format release]; void(^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) = ^(UIPrintInteractionController *print, BOOL completed, NSError *error) { [self resignFirstResponder]; if (!completed && error) { NSLog(@"--- print error! ---"); } }; [pic presentFromRect:CGRectMake((self.view.bounds.size.width - 64) + 27, (self.view.bounds.size.height - 16) + 55, 0, 0) inView:self.view animated:YES completionHandler:completionHandler];
+ (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize {
//UIGraphicsBeginImageContext(newSize);
UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0);
[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
+ (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize {
//UIGraphicsBeginImageContext(newSize);
UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0);
[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}