如何在iOS中打印照片？

我需要使用AirPrinter打印照片並已經編碼，但是我的照片尺寸有一個問題。打印完照片後，我可以看到輸出照片尺寸太大 - 正確地打印A6（4 * 6英寸）照片。如何在iOS中打印照片？

我使用佳能MG3260作爲空氣打印機。

請幫我，如果我能解決這個問題。

截圖 https://www.dropbox.com/s/1f6wa0waao56zqk/IMG_0532.jpg

代碼

-(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];

}

- (UIPrintPaper *)printInteractionController:(UIPrintInteractionController *)printInteractionController choosePaper:(NSArray *)paperList { 

CGSize pageSize = CGSizeMake(6 * 72, 4 * 72); return [UIPrintPaper bestPaperForPageSize:pageSize withPapersFromArray:paperList]; 

}

來源

2013-05-15 Zhenxin

縮放圖像，然後再使用它來打印

+ (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; 
}

來源

2013-05-15 08:55:21

我已經使用縮放圖像！ – Zhenxin

如何在iOS中打印照片？

回答

相關問題