IOS开发--给UIImageView添加touch事件

Add Tap gesture UITapGestureRecognizer to myImageView view (type of UIImageView).

UITapGestureRecognizer*myTapGesture =[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(gestureTapEvent:)]; myImageView.userInteractionEnabled = YES;[myImageView addGestureRecognizer:myTapGesture];[myTapGesture release];

Implement gestureTapEvent: method to receive the touch event.

-(void)gestureTapEvent:(UITapGestureRecognizer*)gesture {

UIImageView* myImageView =(UIImageView*)gesture.view ;

}

Then when you implement your imageViewClicked method, you can get the tapped ImageView using the view property of the GestureRecognizer. Starting from that, you can for example:

• use the tag of your imageView (if you affected it in your tableView:cellForRowAtIndexPath:method) to retrieve the tag and do whatever you want with it (depending on what you affected it to, for example you may have set imageView.tag = indexPath.row intableView:cellForRowAtIndexPath: and get that indexPath row back then)
• Go thru the superviews of the imageView up to the UITableViewCell, then ask for its indexPath to get it back and do whatever you want with it.

Example:

-(void)imageViewClicked:(UITapGestureRecognizer*)gestRecognizer {UIImageView* iv =(UIImageView*)gestRecognizer.view;NSInteger tag = iv.tag;// then do what you want with this// or get the cell by going up thru the superviews until you find itUIView* cellView = iv;while(cellView &&![cellView isKindOfClass:[UITableViewCellclass]]) cellView = cellView.superview;// go up until you find a cell// Then get its indexPathUITableViewCell* cell =(UITableViewCell*)cellView;NSIndexPath* indexPath =[self.tableView indexPathForCell:cell];}