Image Cropping

STEP 1

WRITE IT IN TO "ViewController.h"

// ViewController.h

// PhotoEditDemo

#import <UIKit/UIKit.h>

#import "ZDStickerView.h"

#import "NLImageCropperView.h"

@interface ViewController : UIViewController<UIActionSheetDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate, ZDStickerViewDelegate>

@property (strong, nonatomic) IBOutlet UIImageView *imgView;

@end

STEP 2

WRITE IT IN TO "ViewController.m"

//  ViewController.m

//  PhotoEditDemo

#import "ViewController.h"

@interface ViewController ()

{

    UIImagePickerController *imgPicker;

     NSString *str;

    ZDStickerView *sticker;

    UIImageView *imgView1;

    CGRect rect;

    NLImageCropperView *cropper;

}

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    rect=CGRectMake(100, 100, 100, 100);

    imgView1 = [[UIImageView alloc]initWithFrame:rect];

    

}

- (IBAction)click:(id)sender

{

    UIActionSheet *action = [[UIActionSheet alloc]initWithTitle:@"Choose Image" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Save" otherButtonTitles:@"Add Image 1",@"Add Image 2", nil];

    

    [action showInView:self.view];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

    NSLog(@"%ld",(long)buttonIndex);

    

    imgPicker = [[UIImagePickerController alloc]init];

    [imgPicker setDelegate:self];

    //imgPicker.delegate =self;

    imgPicker.allowsEditing = YES;

    imgPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

   

    if (buttonIndex == 1)

    {

        [self presentViewController:imgPicker animated:YES completion:nil];

        str = @"image 1";

    }

    else if (buttonIndex == 2)

    {

        

        [self presentViewController:imgPicker animated:YES completion:nil];

        str = @"image 2";

    }

    else if (buttonIndex == 0)

    {

        [self.imgView addSubview:sticker];

       

        UIGraphicsBeginImageContextWithOptions(self.imgView.bounds.size, self.imgView.opaque, 0.0);

        [self.imgView.layer renderInContext:UIGraphicsGetCurrentContext()];

        UIImage *saveImage=UIGraphicsGetImageFromCurrentImageContext();

        

        UIImageWriteToSavedPhotosAlbum(saveImage, nil, nil, nil);

        

        self.imgView.image=saveImage;

        [sticker removeFromSuperview];

    }

}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo

{

    

    if ([str isEqualToString:@"image 1"])

    {

        self.imgView.image= image;

    }

    else if ([str isEqualToString:@"image 2"])

    {

        

        cropper=[[NLImageCropperView alloc]initWithFrame:self.view.bounds];

        [self.view addSubview:cropper];

        

        [self.imgView addSubview:sticker];

        [cropper setImage:image];

        [cropper setCropRegionRect:CGRectMake(50, 50, 100, 100)];

        UIButton *btnCrop=[[UIButton alloc]initWithFrame:CGRectMake(150, 550, 100, 30)];

        [btnCrop setTitle:@"Crop" forState:UIControlStateNormal];

        btnCrop.backgroundColor=[UIColor blackColor];

        [btnCrop addTarget:self action:@selector(CropImage) forControlEvents:UIControlEventTouchUpInside];

        

        [cropper addSubview:btnCrop];

    }

    

    [self dismissViewControllerAnimated:YES completion:nil];

}

- (void) CropImage

{

    imgView1.image= [cropper getCroppedImage];

    sticker = [[ZDStickerView alloc]initWithFrame:rect];

    [cropper removeFromSuperview];

    sticker.contentView=imgView1;

    [self.imgView addSubview:sticker];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end

STEP 3

ATTECH LIBRARY

1) Download Library from link which is given below.

https://drive.google.com/file/d/0B5Zcew5al2O7TWE5bFNURXVqS2c/view?usp=sharing

SETP 4

SOLVE UNEXPECTED YOUR ERROR BY YOUR SELF

BEST OF LUCK