uiswipegesturerecognizer

Preload next page in UIPageViewController

好久不见. 提交于 2019-12-04 05:13:49
I've looked many, many places and have yet to find some good sample code showing how to pre-load the "next" page in a UIPageViewController. There are a few answers on SO detailing some theoretical ways to do it (see this question ) but no one has yet to post a working example. In the workflow of my app I'm showing 1 page per screen and I want to have the "next" screen preloaded because as it is, swiping to the next page can be very slow, sometimes requiring 2 swipes (if you swipe too fast) in order for the next page to be rendered and shown. This provides a bad user experience. I don't really

swift : show another view controller on swipe up in first view controller

≯℡__Kan透↙ 提交于 2019-12-03 13:08:16
问题 Hi I checked many questions regarding swiping in SO but have doubts . In my app I have two pages 1. user view controller 2. question view controller user page looks like this now what i want to implement is to show questions view controller while swiping up the users screen from bottom. I am new to Ios, so help me in achieving this. edit: the problem is while swiping up only it should start showing the other view controller. if i swiped till middle of the screen with my finger still touching

Swipe back and forth through array of images Swift

戏子无情 提交于 2019-12-03 03:42:33
I have an array of images that I want to be able to swipe forward (left) to the next image, or back (right) to the previous image. When the imageList hits -1/out of range, the app crashes. I'm having trouble of figuring out the logic of how to keep it within range. Here is my code: var imageList:[String] = ["image1.jpg", "image2.jpg", "image3.jpg"] let maxImages = 2 var imageIndex: NSInteger = 1 The swipe gestures are in my viewDidLoad() method, not sure if this is the right place... : override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,

What is the best way to create a custom “tickle” UIGestureRecognizer?

落爺英雄遲暮 提交于 2019-12-01 08:18:00
I would like to create a custom UIGestureRecognizer for a "tickle"... in other words, detecting a swipeLeft followed by a swipeRight, twice, without lifting the finger. I know I can create it by starting from scratch with a custom gesture, but then I'll need to implement all the 'touches' methods and basically re-invent the swipe gestures. Is there any way of creating a custom UIGestureRecognizer just by combining ones that already exist? In other words, a custom UIGestureRecognizer that extends a UISwipeGestureRecognizer? Or will I need to build it from scratch? If so, does anyone know the

What is the best way to create a custom “tickle” UIGestureRecognizer?

心不动则不痛 提交于 2019-12-01 06:58:30
问题 I would like to create a custom UIGestureRecognizer for a "tickle"... in other words, detecting a swipeLeft followed by a swipeRight, twice, without lifting the finger. I know I can create it by starting from scratch with a custom gesture, but then I'll need to implement all the 'touches' methods and basically re-invent the swipe gestures. Is there any way of creating a custom UIGestureRecognizer just by combining ones that already exist? In other words, a custom UIGestureRecognizer that

Xcode: How do I change UIPageControl value with swipe gesture?

可紊 提交于 2019-11-30 20:24:44
I have a quick question I was hoping you guys could help me answer. Right now I have a UIPageControl in a storyboard which changes an image depending on what dot you are on, however, as of now you have to press on the dot to change through the dots/images, how can I change through the images/dots by swiping? Here is my code for my .h #import <UIKit/UIKit.h> @interface PageViewController : UIViewController @property (strong, nonatomic) IBOutlet UIImageView *dssview; - (IBAction)changephoto:(UIPageControl *)sender; @end Here is my code for my .m #import "PageViewController.h" @interface

switching view controllers using swipe gestures

99封情书 提交于 2019-11-30 20:06:35
Okay so here is the problem I'm running into: I am attempting to switch from one viewController that I named MenuViewController which contains my menu (obviously). I have a separate viewController named ViewController that contains my mapView . I would like to be able to double finger swipe left from my MenuViewController over to my mapView . I'm not exactly sure where to start. Also, I am using xib files, and not the storyboard. Running iOS 6. UISwipeGestureRecognizer *swipeLeftGesture=[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeGesture:)]; [self.view

How to add Swipe Gestures to UITableView cell?

醉酒当歌 提交于 2019-11-28 19:41:37
I added this code in cellForRowAtIndexPath UISwipeGestureRecognizer *gestureR = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [gestureR setDirection:UISwipeGestureRecognizerDirectionRight];//|UISwipeGestureRecognizerDirectionRight)]; [cell addGestureRecognizer:gestureR]; it works fine. But I want UISwipeGestureRecognizerDirectionLeft so Added like this [gestureR setDirection:UISwipeGestureRecognizerDirectionLeft|UISwipeGestureRecognizerDirectionRight)]; When I check with direction and state I am always getting 3 = 3 - (void)handleSwipeFrom:

How to enable swipe to delete cell in a TableView?

亡梦爱人 提交于 2019-11-28 04:16:01
I have a UIViewController that implements TableViews delegate and datasource protocols. Now I want to add "swipe to delete" gesture to cells. How should I go about it. I have given a blank implementation of commitEditingStyle method and also set the Editing property to YES. Still the swipe feature is not coming . Now Do I need to separately add UISwipeGesture to each cell ? Or am I missing something ? You don't have to set editing:YES if you need to show Delete button on cell swipe. You have to implement tableView:canEditRowAtIndexPath: and return YES from there for rows you need to edit

How to recognize swipe in all 4 directions?

痴心易碎 提交于 2019-11-27 12:42:36
I need to recognize swipes in all directions ( Up/Down/Left/Right ). Not simultaneously, but I need to recognize them. I tried: UISwipeGestureRecognizer *Swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(SwipeRecognizer:)]; Swipe.direction = (UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionRight | UISwipeGestureRecognizerDirectionDown | UISwipeGestureRecognizerDirectionUp); [self.view addGestureRecognizer:Swipe]; [Swipe release]; but nothing appeared on SwipeRecognizer Here's the code for SwipeRecognizer: - (void) SwipeRecognizer: