Mixing
How to resize an image that is being printed?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
1
I am trying to print A QR Code that has been generated by Swift when I print it out it is taking up the whole sheet I am wanting to resize the image and make it smaller. Aprox 200px x 200px
I have tried using different UIImage resize functions and is still coming out the same. I have also tried to resize the image with the printController
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing (myTextField.text) 's QR code"
printInfo.outputType = .photoGrayscale
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
printController.printInfo = printInfo
printController.printingItem = img
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSizeMake(size.width * heightRatio, size.height * heightRatio)
} else {
newSize = CGSizeMake(size.width * widthRatio, size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRectMake(0, 0, newSize.width, newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.drawInRect(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
I am expecting a small QR Code Aprox 200px by 200px. I am currently getting a A4 Size QR Code
swift uiimage uiprintinteractioncntrler
asked Jan 3 at 13:27
LukeLuke
279
add a comment |
1
I am trying to print A QR Code that has been generated by Swift when I print it out it is taking up the whole sheet I am wanting to resize the image and make it smaller. Aprox 200px x 200px
I have tried using different UIImage resize functions and is still coming out the same. I have also tried to resize the image with the printController
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing (myTextField.text) 's QR code"
printInfo.outputType = .photoGrayscale
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
printController.printInfo = printInfo
printController.printingItem = img
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSizeMake(size.width * heightRatio, size.height * heightRatio)
} else {
newSize = CGSizeMake(size.width * widthRatio, size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRectMake(0, 0, newSize.width, newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.drawInRect(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
I am expecting a small QR Code Aprox 200px by 200px. I am currently getting a A4 Size QR Code
swift uiimage uiprintinteractioncntrler
asked Jan 3 at 13:27
LukeLuke
279
Which code you have tried to resizeimg?
– Dharmesh
Jan 3 at 13:32
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
I have updated now
– Luke
Jan 3 at 13:41
add a comment |
1
1
1
I am trying to print A QR Code that has been generated by Swift when I print it out it is taking up the whole sheet I am wanting to resize the image and make it smaller. Aprox 200px x 200px
I have tried using different UIImage resize functions and is still coming out the same. I have also tried to resize the image with the printController
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing (myTextField.text) 's QR code"
printInfo.outputType = .photoGrayscale
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
printController.printInfo = printInfo
printController.printingItem = img
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSizeMake(size.width * heightRatio, size.height * heightRatio)
} else {
newSize = CGSizeMake(size.width * widthRatio, size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRectMake(0, 0, newSize.width, newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.drawInRect(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
I am expecting a small QR Code Aprox 200px by 200px. I am currently getting a A4 Size QR Code
swift uiimage uiprintinteractioncntrler
asked Jan 3 at 13:27
LukeLuke
279
I am trying to print A QR Code that has been generated by Swift when I print it out it is taking up the whole sheet I am wanting to resize the image and make it smaller. Aprox 200px x 200px
I have tried using different UIImage resize functions and is still coming out the same. I have also tried to resize the image with the printController
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing (myTextField.text) 's QR code"
printInfo.outputType = .photoGrayscale
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
printController.printInfo = printInfo
printController.printingItem = img
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSizeMake(size.width * heightRatio, size.height * heightRatio)
} else {
newSize = CGSizeMake(size.width * widthRatio, size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRectMake(0, 0, newSize.width, newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.drawInRect(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
I am expecting a small QR Code Aprox 200px by 200px. I am currently getting a A4 Size QR Code
swift uiimage uiprintinteractioncntrler
swift uiimage uiprintinteractioncntrler
asked Jan 3 at 13:27
LukeLuke
279
asked Jan 3 at 13:27
LukeLuke
279
edited Jan 3 at 13:40
Luke
asked Jan 3 at 13:27
LukeLuke
279
asked Jan 3 at 13:27
LukeLuke
279
asked Jan 3 at 13:27
LukeLuke
279
279
Which code you have tried to resizeimg?
– Dharmesh
Jan 3 at 13:32
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
I have updated now
– Luke
Jan 3 at 13:41
add a comment |
Which code you have tried to resizeimg?
– Dharmesh
Jan 3 at 13:32
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
I have updated now
– Luke
Jan 3 at 13:41
Which code you have tried to resize
img?– Dharmesh
Jan 3 at 13:32
Which code you have tried to resize
img?– Dharmesh
Jan 3 at 13:32
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
I have updated now
– Luke
Jan 3 at 13:41
I have updated now
– Luke
Jan 3 at 13:41
add a comment |
1 Answer
1
active
oldest
votes
1
As method resizeImage is returning new UIImage you need store result of
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
in another object like:
let resizedImage = self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
And now you can use this resizedImage image for print like:
printController.printingItem = resizedImage
Hope this will help.
EDIT:
Below is update code:
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing 's QR code"
printInfo.outputType = .photoGrayscale
if let resizedImage = self.resizeImage(image: img, targetSize: CGSize(width: 200, height: 200)) {
printController.printInfo = printInfo
printController.printingItem = resizedImage
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage? {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio)
} else {
newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.draw(in: rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
|
show 2 more comments
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
As method resizeImage is returning new UIImage you need store result of
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
in another object like:
let resizedImage = self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
And now you can use this resizedImage image for print like:
printController.printingItem = resizedImage
Hope this will help.
EDIT:
Below is update code:
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing 's QR code"
printInfo.outputType = .photoGrayscale
if let resizedImage = self.resizeImage(image: img, targetSize: CGSize(width: 200, height: 200)) {
printController.printInfo = printInfo
printController.printingItem = resizedImage
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage? {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio)
} else {
newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.draw(in: rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
|
show 2 more comments
1
As method resizeImage is returning new UIImage you need store result of
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
in another object like:
let resizedImage = self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
And now you can use this resizedImage image for print like:
printController.printingItem = resizedImage
Hope this will help.
EDIT:
Below is update code:
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing 's QR code"
printInfo.outputType = .photoGrayscale
if let resizedImage = self.resizeImage(image: img, targetSize: CGSize(width: 200, height: 200)) {
printController.printInfo = printInfo
printController.printingItem = resizedImage
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage? {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio)
} else {
newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.draw(in: rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
|
show 2 more comments
1
1
1
As method resizeImage is returning new UIImage you need store result of
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
in another object like:
let resizedImage = self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
And now you can use this resizedImage image for print like:
printController.printingItem = resizedImage
Hope this will help.
EDIT:
Below is update code:
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing 's QR code"
printInfo.outputType = .photoGrayscale
if let resizedImage = self.resizeImage(image: img, targetSize: CGSize(width: 200, height: 200)) {
printController.printInfo = printInfo
printController.printingItem = resizedImage
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage? {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio)
} else {
newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.draw(in: rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
As method resizeImage is returning new UIImage you need store result of
self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
in another object like:
let resizedImage = self.resizeImage(img, targetSize: CGSizeMake(200.0, 200.0))
And now you can use this resizedImage image for print like:
printController.printingItem = resizedImage
Hope this will help.
EDIT:
Below is update code:
func printImage(img:UIImage) {
let printController = UIPrintInteractionController.shared
let printInfo = UIPrintInfo(dictionary:nil)
printInfo.jobName = "Printing 's QR code"
printInfo.outputType = .photoGrayscale
if let resizedImage = self.resizeImage(image: img, targetSize: CGSize(width: 200, height: 200)) {
printController.printInfo = printInfo
printController.printingItem = resizedImage
printController.present(animated: true) { (_, isPrinted, error) in
if error == nil {
if isPrinted {
print("QR Code Has Been Printed :)")
} else {
print("QR Code Not Printed")
}
}
}
}
}
func resizeImage(image: UIImage, targetSize: CGSize) -> UIImage? {
let size = image.size
let widthRatio = targetSize.width / size.width
let heightRatio = targetSize.height / size.height
// Figure out what our orientation is, and use that to form the rectangle
var newSize: CGSize
if(widthRatio > heightRatio) {
newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio)
} else {
newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
}
// This is the rect that we've calculated out and this is what is actually used below
let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
// Actually do the resizing to the rect using the ImageContext stuff
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
image.draw(in: rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
edited Jan 3 at 14:02
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
answered Jan 3 at 13:45
DharmeshDharmesh
52.6k23130151
52.6k23130151
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
|
show 2 more comments
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
I Have now done that but i am getting error: Argument labels '(_:, _:)' do not match any available overloads. This is appearing on the line: let resized image
– Luke
Jan 3 at 13:52
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
Let me add complete working code
– Dharmesh
Jan 3 at 13:54
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
@Luke check update answer.
– Dharmesh
Jan 3 at 14:02
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Thanks Very much for the help. This is now working
– Luke
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
Happy to help you. :)
– Dharmesh
Jan 3 at 14:10
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Which code you have tried to resize
img?– Dharmesh
Jan 3 at 13:32
stackoverflow.com/questions/31314412/…
– Luke
Jan 3 at 13:35
Please update your code with your try.
– Dharmesh
Jan 3 at 13:36
I have updated now
– Luke
Jan 3 at 13:41