How does one implement pinch gestures on the iPhone? I'm familiar with using touch events on the iPhone but I'm extremely lazy and don't want to re-invent the wheel for something as widespread as PINCH gestures...Source code or links thereto would be helpful. ...
Does anyone know how to get the size in pixels or scale value of the viewport after a user has pinched or double tapped to zoom in/out on a page in JavaScript? I've tried using window.innerWidth but I've had mixed results. Sometimes it seems to accurately give the number of pixels the viewport is showing, however, if I zoom way in on a ...
I have drawn few shapes in drawRect function of a view, these shapes color changes after some time repeatedly using setNeedsDisplay that calls the drawRect, secondly a shape name is also to be selected when tapped on it, up till now all works fine. There are three views each having more than one shapes drawn as above. All these views ar...
I'm trying to figure out the best way to handle pinch gestures in a UITextView. Currently I've been trying to handle it all in the UITextView, but I'm getting inconsistant results. It seems that it can catch my touches in the touches began method, but it doesn't always get caught in the touches moved method. Would it be better to hand...
I am looking to implement a pinch in/out on top of a UITableView, I have looked at several methods including this one: Similar question But while I can create a "UIViewTouch" object and overlay it onto my UITableView, scroll events are not being relayed to my UITableView, I can still select cells, and they respond properly by trigg...
right now i have a bottle neck in my program I'm trying to write. i am trying to use a pinch gesture to control the scale of a UIImage. its the calculation of the scale that is causing the program to slow down and become choppy. below is the equation. currentScale = (currentDistance / initialDistance) * scaleMod; scaleMod is what ever...
I have an image view that I'm wanting to be able to move around, and pinch to stretch it. It's all working, but it's kinda jumpy when I start to do any pinch movements. The position will jump back and forth between the two fingers. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { startLocation = [[touches anyObje...
I would like to handle pinch events in my Android application to zoom in and out. I believe Android 2.0 has multi-touch functionality, and heard that Android 1.6 might or might not support it depending of the device. What's the best way to detect pinch events, while degrading gracefully for devices that don't support it? I'm targeting ...
I can get the UIPinchGestureRecognizer handler to work with scaling an object but I don't want to scale I want to change the size. For example I have a UITextView and I've attacked a UIPinchGestureRecognizer gesture to it and if the user pinches I want to change the width of the textview to match the pinch. I don't want to scale it so t...
Hello, I have a uiwebview in my App. So far everything works fine, but when i zoom in or out for example the uiwebview refreshes the loaded page and then scrolls and zooms to the new page location and size. So the zooming works good, but I don't want the user to see the refresh and repositioning of the website. Is there a way to preve...
I don't think this has been asked before on this site, but I might be wrong. Does anyone know the basics of how to get that whole effect with the iPad Photos app? Basically, pinching a stack of photos lets you have a "peek" at the photos in that stack, which expands based on the distance between your 2 fingers in the pinch, then fully c...
Hi, I want to get a callback when my UIPinchGestureRecognizer finished a pinch-gesture. Moreover it would be great to know if the finished gesture was a zoom in or a zoom out. Does anyone know a method to use? Or the approach to do? Thanks! ...
i would like to make 2 operations to an UIImageView zoom, rotate i have 2 problems i make an operation for zoom for ex. and when i try to make rotation the uiimeview is set to initial size, i would like to know how to keep the zoomed uiimageview and make the rotation from the zoomed image i would like to combine the zoom operation with...
Hi there I don't want to access the images on the iphone, I want to display an image from my app, but like you view pictures in the picture album of the iphone - with all the pinch and zoom controls and such. Is this possible? I thought there might (by chance) be some class like the AVMediaPlayer class that would do this? Thanks Tom ...
Hello On my website, which is loaded in the webview, there is a map. There are also java scripts that detects double tap for zoom, dragging etc. But is it possible to have a javascript that detects the use of pinch zoom ? there are several examples of it working on an iphone, and on my website there is a script for the pinch zoom but it...
I am trying to get pinch/zoom work but to no luck... please check code attached any help is appreciated. #import "SlideShowViewController.h" #import "SomAppDelegate.h" #import "MainCategory.h" #import <sqlite3.h> #import "UIImage+Resizing.h" NSInteger Val; NSInteger AIX; NSInteger AIY; NSInteger Height; NSInteger Pre; NSInteger Valtab; ...