speichern benutzerdefinierte Kamera erfassen Bild iOS Xcode

Question

Ich bin neu auf iPhone, ich möchte Bild in das Album speichern & Ich möchte diesen Bildpfad. Ich habe das schon gemacht.

Jetzt möchte ich einen benutzerdefinierten Namen für Bild & speichern Bild mit diesem Namen. Ich habe den folgenden Code verwendet, aber ich bekomme kein Bild in das Album.

Kann mir jemand sagen wo ich falsch liege?

#pragma mark - Image Picker Controller delegate methods 

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 

    UIImage *chosenImage = info[UIImagePickerControllerEditedImage]; 
    self.imageView.image = chosenImage; 

    [picker dismissViewControllerAnimated:YES completion:NULL]; 



// Todo to use custom name comment this line. 
//UIImageWriteToSavedPhotosAlbum(self.imageView.image,nil,nil,nil); 

    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]; 



    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 
     UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil); 
    }); 
} 

Answer 1

können Sie Bildspeicher mit benutzerdefinierten Namen wie folgt aus:

UIImage *chosenImage = info[UIImagePickerControllerEditedImage]; 

//save image in Document Derectory 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSLog(@"Get Path : %@",documentsDirectory); 

//create Folder if Not Exist 
    NSError *error = nil; 
    NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/MyFolder"]; 

    if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) 
     [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]; //Create folder 

    NSString *customePhotoName=@"MyPhotoName"; 
    NSString* path= [dataPath stringByAppendingString:[NSString stringWithFormat:@"/%@.png",customePhotoName]]; 
    NSData* imageData = UIImagePNGRepresentation(chosenImage); 

    [imageData writeToFile:path atomically:YES]; 
    NSLog(@"Save Image Path : %@",path); 

Answer 2

In einem meinem Projekt habe ich dies:

let directory = "yourDirectoryName" 
let fileName = "file.png" 
let directoryPath = NSHomeDirectory() + "/Library/Caches/\(directory)" 
do { 
    try NSFileManager.defaultManager().createDirectoryAtPath(directoryPath, withIntermediateDirectories: true, attributes: nil) 
    UIImagePNGRepresentation(image)?.writeToFile(directoryPath+fileName), atomically: true) 
} catch let error as NSError {} 

-Code funktioniert in Swift 2.3. Ich hoffe, das ist was du willst.

Answer 3

Überprüfen Sie, ob NSData und UIImage Objekte den Code unten ich überprüfen, um eine richtige, setzen Sie „atomar“, wie JA, sind:

//Save your image with a completion selector 
UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); 

//Completion selector 
- (void) image: (UIImage *) image 
didFinishSavingWithError: (NSError *) error 
    contextInfo: (void *) contextInfo 
    { 
     if(error) 
    { 
    NSLog(@"save error :%@", [error localizedDescription]); 

    } 
     else if (!error) 
    { 
      PHAsset *asset = [self fetchImageAsset]; 
    } 
} 

    //Fetch image based on create date or whatever naming system you follow 
- (nullable PHAsset *)fetchImageAsset 
{ 
     PHFetchOptions *fetchOptions = [[PHFetchOptions alloc] init]; 
     fetchOptions.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:YES]]; 
     PHFetchResult *fetchResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:fetchOptions]; 
     PHAsset *lastAsset = [fetchResult lastObject]; 
     return lastAsset; 

    }