IOS selects a photo from the mobile album and displays Objective-C, iosobjective-c

Source: Internet
Author: User

IOS selects a photo from the mobile album and displays Objective-C, iosobjective-c

 

You must first grant the app the permission to access the album:

Add the Privacy-Photo Library Usage Description permission to the Info. plist file of the project.

 

ViewController. h:

1 # import <UIKit/UIKit. h> 2 3 @ interface ViewController: UIViewController 4 {5 IBOutlet UIImageView * myImageView; // associate with ImageView 6} 7 8 9-(IBAction) buttonUp :( id) sender; // associate with a Button 10 11 @ end

 

ViewController. m:

1 # import "ViewController. h "2 3 4 @ interface ViewController () <UINavigationControllerDelegate, UIImagePickerControllerDelegate> // interface 5 6 @ end 7 8 @ implementation ViewController 9 10-(void) viewDidLoad {11 [super viewDidLoad]; 12 // Do any additional setup after loading the view, typically from a nib.13} 14 15 16-(void) didreceivemorywarning {17 [super busy]; 18 // Dispose of any resources that can be recreated.19} 20 21 22-(IBAction) buttonUp :( id) sender {23 // initialize UIImagePickerController class 24 UIImagePickerController * picker = [[UIImagePickerController alloc] init]; 25 // identify the data source as album 26 picker. sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 27 // set proxy 28 picker. delegate = self; 29 // open album 30 [self presentViewController: picker animated: YES completion: nil]; 31} 32 33 // select complete callback function 34-(void) imagePickerController :( UIImagePickerController *) picker dictionary :( NSDictionary <NSString *, id> *) info {35 // obtain image 36 UIImage * image = info [plaintext]; 37 [self dismissViewControllerAnimated: YES completion: nil]; 38 39 myImageView. image = image; 40} 41 42 // The user deselected 43-(void) imagePickerControllerDidCancel :( UIImagePickerController *) picker {44 [self dismissViewControllerAnimated: YES completion: nil]; 45} 46 47 48 @ end

 

Related Article

E-Commerce Solutions

Leverage the same tools powering the Alibaba Ecosystem

Learn more >

Apsara Conference 2019

The Rise of Data Intelligence, September 25th - 27th, Hangzhou, China

Learn more >

Alibaba Cloud Free Trial

Learn and experience the power of Alibaba Cloud with a free trial worth $300-1200 USD

Learn more >

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.