How to copy image from device into sandbox of application? - ios

Question

I need to copy image from the device into the sandbox of the app! Say in Library/Cache folder! How do I do it? I searched in the internet i didnt find the solution. Please help!
EDIT:
#pragma mark - ZYQAssetPickerController Delegate
-(void)assetPickerController:(ZYQAssetPickerController *)picker didFinishPickingAssets:(NSArray *)assets{
ALAssetsLibrary *lib=[ALAssetsLibrary new];
for (int i=0; i<assets.count; i++) {
ALAsset *asset=assets[i];
FileOP *fileMgr=[[FileOP alloc]init];
NSString *baseDir=[fileMgr GetDocumentDirectory];
//STORING FILE INTO LOCAL
[lib assetForURL:asset.defaultRepresentation.url
resultBlock:^(ALAsset *asset){
ALAssetRepresentation *repr = [asset defaultRepresentation];
CGImageRef cgImg = [repr fullResolutionImage];
NSString *fname = repr.filename;
UIImage *img = [UIImage imageWithCGImage:cgImg];
NSData *data = UIImagePNGRepresentation(img);
[data writeToFile:[baseDir stringByAppendingPathComponent:fname]
atomically:YES];
//FOR LOCAL URL OF THE IMAGE
NSString *imageURL = [baseDir stringByAppendingPathComponent:fname];
NSLog(#"%# URL OF IMAGE ",imageURL);
[[ImageArray sharedImageArray]setImageUrl:imageURL atIndex:i];
//NSLog(#"%# is the shared array",[[ImageArray sharedImageArray] getImageUrlAtIndex:i];
}
failureBlock:^(NSError *error){
}];
}
NSLog(#"COPIED %lu FILE INTO LOCAL MEMORY",(unsigned long)assets.count);
//NEED TO STORE THE PATH OF THE SELECTED IMAGE FILES INTO SOME ARRAY HERE
}

Answer 1

You can do it like that :
In .h, implement the UIImagePickerControllerDelegate delegate :
#interface yourClass : NSObject <UIImagePickerControllerDelegate>
In .m, create a method fired when you click on a button. It will open your photo library and save the picked image into the cache folder :
- (IBAction)pickFromAlbum:(id)sender
{
UIImagePickerController *pickerController = [UIImagePickerController new];
pickerController.delegate = self;
pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:pickerController animated:YES completion:nil];
}
Then implement the delegate method :
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// Get image into a variable
UIImage *takenImage = [info objectForKey:UIImagePickerControllerOriginalImage];
// Get the cache folder
NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *cacheDir = [dirPaths objectAtIndex:0];
// Save image into cache folder
NSData *data;
data = [NSData dataWithData:UIImageJPEGRepresentation(takenImage, 1.0f)]; // 1.0f = quality 100%
[data writeToFile:[cacheDir stringByAppendingPathComponent:#"fileName.jpeg"] atomically:YES];
// Hide the picker
[picker dismissViewControllerAnimated:YES completion:nil];
}