remove objects from array based on the index - objective-c

Question

I have array of images here i am doing check and uncheck the images finally i have delete button which are the images i check i need to remove the images from array based on the button selection
here is my code
- (IBAction)delete_btn_touch:(id)sender {
[MBProgressHUD showHUDAddedTo:self.view animated:YES];
for(int i=0; i<_GalleryimageArry.count;i++){
_imageV = [[UIImageView alloc]initWithFrame:CGRectMake(CGRectGetWidth(self.view.frame) * i/2*0.6, 0, 100, 100)];
self.Crossbtn =[[UIButton alloc]initWithFrame:CGRectMake(_imageV.image.size.width/2+80,0,20,20)];
UIImage *btnImage = [UIImage imageNamed:#"unselectimag"];
[self.Crossbtn setImage:btnImage forState:UIControlStateNormal];
_imageV.contentMode = UIViewContentModeScaleAspectFill;
_imageV.image = [_GalleryimageArry objectAtIndex:i];
[_imageV setUserInteractionEnabled:YES];
_imageV.tag = i;
self.Crossbtn.tag =i;
[self.Crossbtn addTarget:self action:#selector(deleteImage:) forControlEvents:UIControlEventTouchUpInside];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(imageTapMethod:)];
[_imageV addGestureRecognizer:tap];
[self.imageV addSubview:self.Crossbtn];
[self.imageGalleryscroll addSubview:_imageV];
[MBProgressHUD hideAllHUDsForView:self.view animated:YES];
}
self.imageGalleryscroll.delegate = self;
index=0;
self.imageGalleryscroll.contentSize = CGSizeMake(CGRectGetWidth(self.view.frame) * _GalleryimageArry.count/2*0.7, CGRectGetHeight(self.imageGalleryscroll.frame));
[self.imageGalleryscroll setPagingEnabled:YES];
[self.imageGalleryscroll setShowsHorizontalScrollIndicator:NO];
self.imageGalleryscroll.alwaysBounceVertical = NO;
[MBProgressHUD hideHUDForView:self.view animated:YES];
}
-(void)deleteImage:(UIButton *)sender{
btn = (UIButton *)sender;
self.add_delete_view.hidden =YES;
self.deleteview.hidden=NO;
if( [[btn imageForState:UIControlStateNormal] isEqual:[UIImage imageNamed:#"unselectimag"]])
{
[btn setImage:[UIImage imageNamed:#"Crossimg"] forState:UIControlStateNormal];
[btn setSelected:YES];
[btn setTag:index];
}
else
{
[btn setImage:[UIImage imageNamed:#"unselectimag"] forState:UIControlStateNormal];
// other statements
self.selectedimages =#"No";
image = [self.GalleryimageArry objectAtIndex:index];
[self.GalleryimageArry addObject:image];
}
NSLog(#"%#", self.GalleryimageArry);
}
- (IBAction)delete_all_img_btn_touch:(id)sender {
// self.view (change it with your button superview)
if (btn.selected) {
[self.GalleryimageArry removeObjectAtIndex:index];
}
//here i need to removeObjectAtIndex:index based on the how many button are selected
}
any one help me to solve this issues
thanks in advance

Answer 1

Use the following code, where you want to clear the back stack of controllers.
-(void)clearStack
{
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
[navigationArray removeAllObjects];
//[navigationArray removeObjectAtIndex: 2];
self.navigationController.viewControllers = navigationArray;
}