Saving image to Documents directory and retrieving for email attachment - ios

Question

I having trouble figuring out NSBundle & DocumentDirectory data, I have a Camera Picture "imageView" that I'm saving to the NSDocumentDirectoy and then want to retrieve it for attaching to an email,
Here the saving code:
- (IBAction)saveImage {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:#"savedImage.png"];
UIImage *image = imageView.image; // imageView is my image from camera
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
}
Here is the new getting data code:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *appFile = [documentsDirectory stringByAppendingPathComponent:#"savedImage.png"];
NSData *myData = [[[NSData alloc] initWithContentsOfFile:appFile] autorelease];
[picker addAttachmentData:myData mimeType:#"image/png" fileName:#"savedImage"];

Answer 1

- (IBAction)getImage {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *getImagePath = [documentsDirectory stringByAppendingPathComponent:#"savedImage.png"];
UIImage *img = [UIImage imageWithContentsOfFile:getImagePath];
}
This should get you started!

Answer 2

Swift 3
// Create a URL
let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first
let imageURL = documentsURL?.appendingPathComponent("MyImageName.png")
// save image to URL
let myImage = imageView.image! // or wherever you have your UIImage
do {
try UIImagePNGRepresentation(myImage)?.write(to: imageURL!)
} catch {}
// Use the URL to retrieve the image for sharing to email, social media, etc.
// docController.URL = imageURL
// ...
I force unwrapped some of the optionals for brevity. Use guard or if let in your code.

Answer 3

Because each iPhone app is in it's own sandbox, you don't have access to a device-wide documents folder. To attach an image to an email, save the image in your own documents folder. Try using [#"~/Documents" StringByExpandingTildeInPath] to get your local documents folder - that works for me. It looks like the technique you're using for attaching the image to an email is correct.
Hope that helps,

Answer 4

Try this one :
-(void)setProfilePic
{
NSArray *docpaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [docpaths objectAtIndex:0];
NSString *imagePath = [documentsDirectory stringByAppendingPathComponent:#"Image.png"];
NSData *imgData = [[NSData alloc] initWithContentsOfURL:[NSURL fileURLWithPath:imagePath]];
UIImage *thumbNail = [[UIImage alloc] initWithData:imgData];
[profilePic_btn setBackgroundImage:thumbNail forState:UIControlStateNormal];
}