ios – 从JSQMessagesViewController打开图像

- (void)collectionView:(JSQmessagesCollectionView *)collectionView didTapmessageBubbleATindexPath:(NSIndexPath *)indexPath
{
    JSQmessage *message = [self.messageModelData.messages objectATindex:indexPath.row];

    if (message.isMediamessagE) {
        id<JSQmessageMediaData> mediaItem = message.media;

        if ([mediaItem isKindOfClass:[JSQPhotoMediaItem class]]) {

            NSLog(@"Tapped photo message bubble!");

            JSQPhotoMediaItem *photoItem = (JSQPhotoMediaItem *)mediaItem;
            [self popupImage:photoItem.image];
        }
    }
}

- (void) popupImage: (UIImage*)image
{
    UIWindow *window = [[UIApplication sharedApplication] keyWindow];
    UIView *topView = window.rootViewController.view;
    imageView = [[UIImageView alloc] initWithImage:image];

    zoomPopup  *popup = [[zoomPopup alloc] initWithMainview:topView andStartRect:CGRectMake(topView.frame.size.width/2,topView.frame.size.height/2,0)];
    [popup showPopup:imageView];
}

你可以在这里看到zoomPopup：
https://github.com/Tintenklecks/zoomPopup