Hey I'm new to iPhone and I have been trying to make an app recently. Basically, what I want to do is if user will capture any image from camera, then it should save in the device gallery. I know how to save the photo in gallery, it's working for me, but I am having trouble with to save all the captured images into a specific folder (like a new album) in device gallery. I want the user to be able to take several pictures and then copy pictures from that specific folder to the gallery.
here is my code:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *mediaType = [info valueForKey:UIImagePickerControllerMediaType];
if([mediaType isEqualToString:(NSString*)kUTTypeImage]) {
UIImage *photoTaken = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
self.imageView.image = photoTaken;
//Save Photo to library only if it wasnt already saved i.e. its just been taken
if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
UIImageWriteToSavedPhotosAlbum(photoTaken, self, #selector(image:didFinishSavingWithError:contextInfo:), nil);
}
}
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
UIAlertView *alert;
if (error) {
alert = [[UIAlertView alloc] initWithTitle:#"Error!"
message:[error localizedDescription]
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
}
I have tried by doing this below code, but i don't know where it is saving images to the App resource in my iPhone device:
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *sourcePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"EMS_FOLDER"];
NSString *folderPath = [documentsDirectory stringByAppendingPathComponent:#"Files"];
Any source or link for reference is appreciated.
Thanks for the help!
You can use AssetsLibrary, this will solve your problem.
- (IBAction)takePhoto
{
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePickerController.editing = YES;
imagePickerController.delegate = (id)self;
[self presentModalViewController:imagePickerController animated:YES];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
[self.library saveImage:image toAlbum:#"Touch Code Magazine" withCompletionBlock:^(NSError *error) {
if (error!=nil) {
NSLog(#"Big error: %#", [error description]);
}
}];
[picker dismissModalViewControllerAnimated:NO];
}
This has been explained here, a nice tutorial..
http://www.touch-code-magazine.com/ios5-saving-photos-in-custom-photo-album-category-for-download/
Related
I am developing a chat, in chat I need to share pictures, my app has a button to select an image from gallery.
This is my button code:
[upBtn2 addTarget:self action:#selector(uploadImage:) forControlEvents:UIControlEventTouchUpInside];
In gallery the user can select an image to share in chat with someone else, the conversation is just 1 to 1 chat.
This is my code.
- (IBAction)uploadImage:(id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType =
UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes = [NSArray arrayWithObjects:
(NSString *) kUTTypeImage,
nil];
imagePicker.allowsEditing = NO;
[self presentViewController:imagePicker animated:YES completion:nil];
newMedia = NO;
}
}
-(void)imagePickerControllerDidCancel:
(UIImagePickerController *)picker
{
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = [info
objectForKey:UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:YES completion:nil];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
UIImage *image = [info
objectForKey:UIImagePickerControllerOriginalImage];
Uploadedimage.image=image;
if (newMedia)
UIImageWriteToSavedPhotosAlbum(image,
self,
#selector(image:finishedSavingWithError:contextInfo:),
nil);
}
else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie])
{
// Code here to support video if enabled
}
UIImage *image = [info
objectForKey:UIImagePickerControllerOriginalImage];
// [self performSelector:#selector(uploadToServer) withObject:nil afterDelay:0.0];
XMPPMessage *message = [[XMPPMessage alloc] initWithType:XMPP_MESSAGE_TYPE_CHAT to:[self.contact jid]];
NSData *imageData = UIImagePNGRepresentation(image);
NSString *imageStr = [GTMBase64 stringByEncodingData:imageData];
//decoding
NSData *imageData2 = [GTMBase64 decodeString:imageStr];
[message addBody:imageStr];
[[[AppDelegate appDelegate] xmppStream] sendElement:message];
XMPPJID *myJID = [[[AppDelegate appDelegate] xmppStream] myJID];
[self addMessage:#{
XMPP_TIMESTAMP: [NSDate date],
XMPP_MESSAGE_USERNAME: [myJID bare],
XMPP_MESSAGE_TEXT: imageStr,
}];
[self.tableView reloadData];
[self scrollToBottom:true];
}
- (void)image:(UIImage *)image
finishedSavingWithError:(NSError *)error
contextInfo:(void *)contextInfo
{
if (error) {
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle: #"Archivo guardado"
message: #"Error al guardar archivo"\
delegate: nil
cancelButtonTitle:#"Aceptar"
otherButtonTitles:nil];
[alert show];
}
}
I am getting an issue, the code it is showing
2014-10-14 11:01:21.973 Ucity[2907:60b] messages: (
{
text = "/9j/4AAQSkZJRgABAQAAAQABAAD/4QBYRXhpZgAATU0AKgAAAAgAAgESAAMAAAABAAEAAIdpAAQAAAABAAAAJgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAAE9KADAAQAAAABAAAFcAAAAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/..."
I need to see the image there but for some reason its showing that text.
I am using GTMBase 64 library
#import "GTMBase64.h"
Can someone help me to fix this problem?
That cryptic text is the image. It's just the base-64 string representation of the image. I assume you're doing this base-64 encoding for a reason (e.g. this format is required by some service to which you are uploading the image).
I'm presuming from your question that you want to show the image somewhere. I'm just trying to reconcile this with this code, in which you retrieved the image, converted it to a base-64 string, then discarded the original image, and now you're asking us why you're only seeing the string.
If you need the image again, there are a couple of options:
Keep the UIImage (or the NSData) that you grabbed in didFinishPickingMediaWithInfo.
You could alternatively convert the base-64 string back to a NSData (and then create a UIImage from that). This is a pretty convoluted approach, but it would work.
As an aside, if you wanted, you could probably replace GTMBase64.h with the native base-64 methods that Apple exposed in iOS 7. See https://stackoverflow.com/a/19794564/1271826.
Also, I don't personally like grabbing the UIImage and doing the PNG conversion to get the NSData. I always grab the original asset as shown here. This ensures there's no loss of information and that the resulting NSData isn't larger than it needs to be.
I've made an app for iPhone which is Flappy Bird-inspired. This app is made just so I can learn the programming behind app-making, and hopefully make an more original and advanced app soon.
The app can load a picture taken either from your Photo Library, or from your iPhone-Camera. I used this code:
- (IBAction)didTapPhoto:(UITapGestureRecognizer *)sender {
UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"Take a Photo", #"Use Photo Library", nil];
[actionSheet showInView:self.view];
}
-(void) pickPhotoFromLibrary {
self.imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self.navigationController presentViewController:self.imagePicker animated:YES completion:nil];
}
-(void) takePhotoWithCamera {
self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self.navigationController presentViewController:self.imagePicker animated:YES completion:nil];
}
-(void) actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex == actionSheet.cancelButtonIndex)return;
switch (buttonIndex) {
case 0:
[self takePhotoWithCamera];
break;
case 1:
[self pickPhotoFromLibrary];
default:
break;
}
}
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissViewControllerAnimated:YES completion:nil];
UIImage *image = info[UIImagePickerControllerOriginalImage];
self.imageView.image = image;
}
The question is: How do I save the picture which is loaded in an ImageView, and then load it in another ViewController?
I want the user to take a picture and then use themselves as the flappy bird. I have already made the Flappy Bird course, and used to different flappy birds.
The only issue is that I want it to be possible to save the picture selected by the user as a .png file, just like it was saved in Supporting Files. The picture can be saved as a default, for example #"image1", and in the other ViewController you can set that the ImageView load #"image1".
Save image to iPhone local file:
NSString *imagePath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *imageName = [imagePath stringByAppendingPathComponent:#"MainImage.jpg"];
NSData *imageData = UIImageJPEGRepresentation(imageView.image, 1.0);
BOOL result = [imageData writeToFile:imageName atomically:YES];
NSLog(#"Saved to %#? %#", imageName, (result? #"YES": #"NO"));
Load the saved image:
NSString *imagePath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *imageName = [imagePath stringByAppendingPathComponent:#"MainImage.jpg"];
UIImage *image = [UIImage imageWithContentsOfFile:imageName];
I am try to develop iOS app which get the location of the Photo using UIImagePickerController and display it I am deploying it on iOS 7 device Here is what i did .
- (IBAction)takePhoto:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
picker.showsCameraControls = YES;
[self presentViewController:picker animated:YES
completion:^ {
// [picker takePicture];
}];}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSLog(#"Media Info: %#", info);
NSString *mediaType = [info valueForKey:UIImagePickerControllerMediaType];
ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *myasset)
{
// Get the location property from the asset
CLLocation *location = [myasset valueForProperty:ALAssetPropertyLocation];
// I found that the easiest way is to send the location to another method
latitude =location.coordinate.latitude; //[[gpsdata valueForKey:#"Latitude"]floatValue];
longitutde =location.coordinate.longitude;
NSString * strLocation=[NSString stringWithFormat:#"La:%f Lo%f",latitude,longitutde];
};
// This block will handle errors:
ALAssetsLibraryAccessFailureBlock failureblock = ^(NSError *myerror)
{
NSLog(#"Can not get asset - %#",[myerror localizedDescription]);
// Do something to handle the error
};
if([mediaType isEqualToString:(NSString*)kUTTypeImage]) {
UIImage *photoTaken = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
//Save Photo to library only if it wasnt already saved i.e. its just been taken
if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
UIImageWriteToSavedPhotosAlbum(photoTaken, self, #selector(image:didFinishSavingWithError:contextInfo:), nil);
}
}
[picker dismissModalViewControllerAnimated:YES];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
UIAlertView *alert;
//NSLog(#"Image:%#", image);
if (error) {
alert = [[UIAlertView alloc] initWithTitle:#"Error!"
message:[error localizedDescription]
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissModalViewControllerAnimated:YES];
}
I am not able to get .How to get the location ? please help me on this .
in the delegate implementation you can use the path of the image or the image itself:
// This method is called when an image has been chosen from the library or taken from the camera.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
//You can retrieve the actual UIImage
UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
//Or you can get the image url from AssetsLibrary
NSURL *path = [info valueForKey:UIImagePickerControllerReferenceURL];
[picker dismissViewControllerAnimated:YES completion:^{
}];
}
Location Services Should be enabled when the photo was taken.Try same code by enabling location services.
I'm using UIImagePickerController to take picuture and save to photo gallery. When i launch the picker it has the button to photo take and cancel after taking photo it shows 2 button Retake & use, if i use, use button then only image saving to photo album but after saving i can't go to previous page or close the picker.
-(void)takepicture:(id)sender{
// Create image picker controller
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
// Set source to the camera
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
// Delegate is self
imagePicker.delegate = self;
// Show image picker
[self presentModalViewController:imagePicker animated:YES];
// [self performSelector:#selector(onTimer_Loadpicture:) withObject:nil afterDelay:0.5];
}
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// Access the uncropped image from info dictionary
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
// Save image
UIImageWriteToSavedPhotosAlbum(image, self, #selector(image:didFinishSavingWithError:contextInfo:), nil);
// UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
[picker release];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[self dismissModalViewControllerAnimated:YES];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
UIAlertView *alert;
// Unable to save the image
if (error)
alert = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Unable to save image to Photo Album."
delegate:self cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
else // All is well
alert = [[UIAlertView alloc] initWithTitle:#"Success"
message:#"Image saved to Photo Album."
delegate:self cancelButtonTitle:#"Ok"
otherButtonTitles:nil];
[alert show];
[alert release];
[self performSelector:#selector(onTimer_Loadpicture:) withObject:nil afterDelay:0.5];
}
just dismiss your view controller. like this ,update your didFinishPickingMediaWithInfo method
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// Access the uncropped image from info dictionary
UIImage *image = [info objectForKey:#"UIImagePickerControllerOriginalImage"];
// Save image
UIImageWriteToSavedPhotosAlbum(image, self, #selector(image:didFinishSavingWithError:contextInfo:), nil);
// UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
[picker dismissViewControllerAnimated:YES completion:NULL];
}
You are not dismissing your view controller.You should do like this and if part of this code is not necessary it is up to you that you want to check your image in imageView or not.If you do not want to check then simply remove the if part and use else part's code.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editingInfo{
[self dismissModalViewControllerAnimated:YES];
_imgview.image = [editingInfo valueForKey:#"UIImagePickerControllerOriginalImage"];
if(_imgview==nil){
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Angry!!!" message:#"Vennligst velg et bilde!" delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil];
[alert show];
}
else{
_imgview.image = img;
imageData=[self compressImage:img];
[picker dismissModalViewControllerAnimated:YES];
_lblname.hidden=true;
}
return;
}
I know how to save a picture and this is the code until now. This code shows that the user taps a button and is able to take a photo.
-(IBAction)TakePhoto {
picker = [[UIImagePickerController alloc]init];
picker.delegate = self;
[picker setSourceType:UIImagePickerControllerSourceTypeCamera];
[self presentViewController:picker animated:YES completion:nil];
}
- (IBAction)ChooseExisting {
picker2 = [[UIImagePickerController alloc]init];
picker2.delegate = self;
[picker2 setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
[self presentViewController:picker2 animated:YES completion:nil];
}
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
image = [info objectForKey:UIImagePickerControllerOriginalImage];
[imageview setImage:image];
//Save Your Image ======
UIImage *yourImage = imageview.image;//imageView.image;
NSString *docDirPath = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents"];
NSString *filePath = [docDirPath stringByAppendingPathComponent:#"myImageFile.png"];
[UIImagePNGRepresentation(yourImage) writeToFile:filePath atomically:YES];
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[self dismissViewControllerAnimated:YES completion:NULL];
}
However I want to sort my saved pictures into 6 Category or Genres which the user has to tap using the segment view control. Is this possible to do? I am very new in ios programming and objective-c in xcode and confused with many view controllers however I really like this to work and I a cannot find any resource about this topic. Thanks.
Here is a good demo for saving images to particular album using ALAssetsLibrary:
http://www.touch-code-magazine.com/ios5-saving-photos-in-custom-photo-album-category-for-download/
I hope it will help you out...
or
You can create different libraries using this piece of code:
-(void)createDirectory:(NSString *)directoryName atFilePath:(NSString *)filePath
{
NSString *filePathAndDirectory = [filePath stringByAppendingPathComponent:directoryName];
NSError *error;
if (![[NSFileManager defaultManager] createDirectoryAtPath:filePathAndDirectory
withIntermediateDirectories:NO
attributes:nil
error:&error])
{
NSLog(#"Create directory error: %#", error);
}
}
And fetch the images through their respective paths!!!
For more information see this: http://kmithi.blogspot.in/2012/08/ios-application-directory-structure.html