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  • How to convert NSData to UIImage in iOS

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    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:-

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