gesture

问题 Below is the code of loading frameanimation for two different images on the occurrence of different events.First event is while the activity start.Others are the onTouch() where i making use of GestureDetector for the onDown() and onScroll() The problem is that i get NullPointerException while its in the OnScroll() .I found that it is not getting the Y coordinates what can be the issue. package com.example.animationtry; import android.os.Bundle; import android.app.Activity; import android

问题 My app has 7 subsequent view controllers: VC1 - VC7 In my navigation bar I have a back button with to actions: tapped and longPressed. When the backButton gets pressed long in any VC, the app should go to VC2 and present it as if the user went from VC1 to VC2, specifically: with the right back button tapped action. This is my code for UILongPressGestureRecognizer: func longPressAction(gestureRecognizer: UIGestureRecognizer) { if (gestureRecognizer.state == UIGestureRecognizerState.Ended) {

问题 First, let me tell u that i am stressed out by this, because i don't even know the concept / method name, so i can't even search it in google as i don't know the keywords, but ill try my best to explain it. Feel free to modify my contents and title as you see fit. what i want to achieve is this: i have view group contains many child views, or it can be GridView i want to able to block select some of it child views, and return the selected / blocked items. pictures worth more than thousands

问题 I am trying to animate an image based on the select pivoted items position. I am currently using the ManipulationDelta event to try and see which direction the user is swiping so that I can fade out or fade in an animated image based on the position of the pivot item. My problem is with the ManipulationDelta event, this event is only ever called once on a pivot item, regardless of how much manipulation of the pivot control is occurring. Does anyone know a way to make it so the pivot items

问题 I have added a swipe gesture in my ios application, but somehow I can't access the camera afterward. I am beginner in swift and I would be very glad if you can advice me how to fix it. So far I have used: import UIKit class ViewController: UIViewController, UIImagePickerControllerDelegate,UINavigationControllerDelegate{ let imagePicker: UIImagePickerController! = UIImagePickerController() let reachability = Reachability()! override func viewDidLoad() { super.viewDidLoad() imagePicker.delegate

问题 Hi I'm using swipe layout in my recyclerview. Also I want to implement single and double tap for my list item layout. If i use touch listener my swipe will not work. So i want to detect single and double click of an layout using setOnClickListener. Please suggest me an idea to detect single and double tap for a layout. 回答1: Hi I found a solution both single tap and double tap will work for single view using onSingleTapConfirmed like below, public class OnSwipeTouchListener implements View

问题 I've seen it on Dolphin Browser. There're some gestures that're already created by default. They will redraw themselves so that users know where to begin drawing. I've noticed that in Gesture object, there's a method named toPath(). But I have no clue how to use it and I'm not sure if I'm on the right track. Can somebody tell me how to do it? Thanks. You can take a look at the picture below. 回答1: First of all I would suggest to take a look at GestureBuilder app from SDK samples. It has

问题 I have used the gestures code based on the provided Kivy examples to record and recognize single touch gestures. However, I am not sure how to extend this code to recognize multi-touch gestures. Let's say, for example, a pinch. My problem becomes specially complicated because I use a laptop with zero multi-touch functionality. How do I combine two single gestures? Is there any example available? 回答1: From 1.9.0, Kivy got a multi-touch gesture recognizer integrated: have a look at kivy

问题 I am having an application in which i have a ListView .List is populated from an array list . On selection of each item it show the detail description for that item in a seperate screen populated data from another array list . A single screen is used to display details of all the items.it loads data from dynamically. Can anyone please tell me how can i display all details on same screen using right/left slide gesture. Screen with ListView -itemList Screen to display detail -detail listView on

问题 This is not a duplicate but a specific case to Android wear. I am trying to make Android wear app do something when certain gestures are performed. But I realized that the onKeyDown() event is not called at all. Any help or info I this regard is useful. Here is my simple code snippet. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_gesture_ema); Log.d(TAG, "Inside on create"); //Show prompt window on top