nachdem Sie das Bild Kommissionierung wie in ios Bilder lokal speichern

Question

, wenn ich das Bild einzufangen ich brauche Bilder eins nach dem anderen in der Tabellenansicht zu speichern, wie unten Bild .is benötigen nsuser Versäumnisse oder Verwendung Kerndaten verwenden? und nach das Bild Kommissionierung, wie Array

Answer 1

Ja, können Sie die Bilder im Dokument-Verzeichnis speichern und die Bilddateinamen in eine halten Array danach, dass Bilder aus doc abrufen. Richt. genau so

// For error information 
    NSError *error; 
    NSFileManager *fileMgr = [NSFileManager defaultManager]; 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder 
    NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/YOUR_IMG_FOLDER"]; 

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

    //Get the current date and time and set as image name 
    NSDate *now = [NSDate date]; 

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; 
    dateFormatter.dateFormat = @"yyyy-MM-dd_HH-mm-ss"; 
    [dateFormatter setTimeZone:[NSTimeZone systemTimeZone]]; 
    NSString *gmtTime = [dateFormatter stringFromDate:now]; 
    NSLog(@"The Current Time is :%@", gmtTime); 

    NSData *imageData = UIImageJPEGRepresentation(_postImage, 0.5); // _postImage is your image file and you can use JPEG representation or PNG as your wish 
    int imgSize = imageData.length; 
    ////NSLog(@"SIZE OF IMAGE: %.2f Kb", (float)imgSize/1024); 

    NSString *imgfileName = [NSString stringWithFormat:@"%@%@", gmtTime, @".jpg"]; 
    // File we want to create in the documents directory 
    NSString *imgfilePath= [dataPath stringByAppendingPathComponent:imgfileName]; 
    // Write the file 
    [imageData writeToFile:imgfilePath atomically:YES]; 

    **// Keep your Image file name into an mutable array here OR you can saved the array in a UserDefaults** 

Dann aus doc abholen. Richt. Iterieren Sie das Array.

//Get image file from sand box using file name and file path 
NSString *stringPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0]stringByAppendingPathComponent:@"YOUR_IMG_FOLDER"]; 
stringPath = [stringPath stringByAppendingPathComponent:imgFile]; // imgFile to get from your array, where you saved those image file names 
UIImage *image = [UIImage imageWithContentsOfFile:stringPath]; 

Vielen Dank ... happy coding.

Answer 2

hinzufügen Sie Bild in NSUserDefaults speichern können wie folgt

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{ 
    UIImage *chosenImage = info[UIImagePickerControllerEditedImage]; 
    if(!self.phto_arr_) 
    { 
    self.phto_arr_ = [[NSMutableArray alloc] init]; 
    } 
[self.phto_arr_ addObject: chosenImage]; 
NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:self.phto_arr_]; 
[[NSUserDefaults standardUserDefaults] setObject: encodedObject forKey:@"images"]; 
[[NSUserDefaults standardUserDefaults] synchronize]; 
[picker dismissViewControllerAnimated:YES completion:NULL]; 
} 

Answer 3

Versuchen unter diesem Code: auch diesen Code anzeigen verwenden : Angenommen, Sie mögen Bildnamen,

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ 
    chosenImage = info[UIImagePickerControllerOriginalImage]; 
    chosenImage = [UIImage unrotateImage:chosenImage];  
    addGalleryImageview.image = chosenImage; 
    isCameraOn = YES;  
    NSString* fileName = [NSString stringWithFormat:@"gallery%@",[Utils getDateString]]; 
    imageNamelbl.text = fileName; 
    [picker dismissViewControllerAnimated:YES completion:NULL];} 


- (UIImage*)unrotateImage:(UIImage*)image{ 
    CGSize size = image.size; 
    UIGraphicsBeginImageContext(size); 
    [image drawInRect:CGRectMake(0,0,size.width ,size.height)]; 
    UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); 
    UIGraphicsEndImageContext(); 
    return newImage;}