IOS images exist locally, and images are retrieved from the local device. ios images exist.

IOS images exist locally, and images are retrieved from the local device. ios images exist.

The image exists locally, and then the image is retrieved from the local

// Save the image locally + (void) SaveImageToLocal :( UIImage *) image Keys :( NSString *) key {NSUserDefaults * preferences = [NSUserDefaults standardUserDefaults]; // [preferences persistentDomainForName: localPath]; [preferences setObject: UIImagePNGRepresentation (image) forKey: key];} // check whether related images exist locally + (BOOL) LocalHaveImage :( NSString *) key {NSUserDefaults * preferences = [NSUserDefaults standardUserDefaults]; // [preferences persistentDomainForName: LocalPath]; NSData * imageData = [preferences objectForKey: key]; if (imageData) {return YES ;} return NO;} // obtain the image from the local machine + (UIImage *) GetImageFromLocal :( NSString *) key {NSUserDefaults * preferences = [NSUserDefaults standardUserDefaults]; // [preferences persistentDomainForName: LocalPath]; NSData * imageData = [preferences objectForKey: key]; UIImage * image; if (imageData) {image = [UIImage imageWithData: imageData];} else {NSLog (@ "image not obtained locally");} return image ;}