Hi Readers,

This blog includes the concept of converting NSData to UIImage with the help of a very simple example. Given below is the screenshot and code which is used to convert NSData to UIImage on button click. Snapshot of storyboard is given below:-

Code for the same is given below:-

ViewController.h


#import <UIKit/UIKit.h>

@interface ViewController : UIViewController


@property (weak, nonatomic) IBOutlet UIImageView *imgView;
- (IBAction)btnConvert:(id)sender;

@end



ViewController.m


#import "ViewController.h"
#import "StringDeclaration.h"
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)btnConvert:(id)sender {

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Data" ofType:@"txt"];
    NSError *error;
    NSString *myText = [NSString stringWithContentsOfFile:filePath usedEncoding:nil error:&error];
    NSData *data = [[NSData alloc] initWithBase64EncodedString:myText options:NSDataBase64DecodingIgnoreUnknownCharacters]; //
    UIImage *convertImageFromNSData = [UIImage imageWithData:data];
    _imgView.image=convertImageFromNSData;
}
@end

Output:-

You can also download the project from the link given below:-