touchmoved not working after displaying uiimageviews from NSMutable array - ios

Question

I am developing a project in which I have created a UIImageView dynamically using an NSMutableArray
The code for this is:
for (int i = 0; i < index ; i++) {
image_name= [NSString stringWithFormat:#"%#%dpng.png",[string_values objectAtIndex:0],i+1];
UIImageView *tempImageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:image_name]];
tempImageView.userInteractionEnabled = YES;
CGSize size2=tempImageView.image.size;
int width2=size2.width/2;
int height2 =size2.height/2;
tempImageView.frame = CGRectMake(xvalue,yvalue,width2,height2);
[myArray addObject:tempImageView];
}
After that I add the subview to show it on the screen with this code:
for(int i=0;i<[myArray count];i++) {
[self.view addSubview:[myArray objectAtIndex:i]];
}
All the above code runs well as according to the needs. Now for the touchesBegan method, I am doing this code:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
printf("the touch is fired");
for(int i=0;i<[myArray count];i++) {
[self.view addSubview:[myArray objectAtIndex:i]];
touchStart = [[touches anyObject] locationInView:[myArray objectAtIndex:i]];
}
}
The app crashes when the touchesBegan method is called, right after it prints the first line of the touchesBegan method.
I am having difficulties here and have also gone through many question/answers but can't find a working solution. Any help will be appreciated. Thanks for Good Replies

Answer 1

To make your imageviews draggable,
1) Remove all - (void)touches methods
2) Add these two lines just after creating UIImageView *tempImageView (in loop)
UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handleDrag:)];
[tempImageView addGestureRecognizer:panRecognizer];
3) then, add this method somewhere in your view controller.m file
-(void) handleDrag:(UIPanGestureRecognizer *) panGesture{
CGPoint transition = [panGesture translationInView:self.view];
panGesture.view.center = CGPointMake(panGesture.view.center.x + transition.x, panGesture.view.center.y +transition.y);
[panGesture setTranslation:CGPointMake(0,0) inView:self.view];}