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Questions tagged [gesture-recognition]

Anything related to gesture recognition, i.e. the process of recognizing the gestures of a human user by a machine.

Anything related to gesture recognition, i.e. the process of recognizing the gestures of a human user by a machine.

590 questions
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Accelerometer-based gesture recognition

I'm developing an embedded accelerometer-based hand gesture recognition. Does anybody know about some free libraries to employ or to start from? I'm working with embedded linux and I'm looking for something not too much computation-heavy. I couldn't…
stef
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Gesture Recognition In Android

I'm new to Android and I'm working on Gestures. I have a problem regarding how to recognise the text. When a user draws a letter or number that has to be recognised and has to be printed on the top of the screen. I came to know that it can be done…
Lavanya
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Swipe behavior for touch applications

I'm writing a manager for ActionScript to detect SWIPE gesture. Yes, there is API to work with native (OS) gesture already, but my plan is: so it would work even for singletouch screens (usual platforms in other words. singletouch screen or just a…
average dev
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How do I prevent onTapDown from being triggered on a parent widgets GestureDetector?

I have a Stack in which several widget can be dragged around. In addition, the container that the Stack is in has a GestureDetector to trigger on onTapDown and onTapUp. I want those onTap events only to be triggered when the user taps outside of the…
spkersten
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iOS - detect when more than one finger is on the screen

I'm looking for the best way to detect more than one finger on the screen at time. I'm not detecting taps or pinching, just the fact that more than one touch is happening. There don't seem to be any gesture recognizers for that. What's the best way?
sol
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What is a UITapAndAHalfRecognizer?

I notice that when I cycle through the gesture recognizers of a UITextView and output the description of each to the console, one of the recognizers that seemed utterly curious was the UITapAndAHalfRecognizer. I know about the others such as…
rolling_codes
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Gesture detection algorithm based on discrete points

I am trying to solve the problem of matching a human generated gesture with a known gesture. The human generated gesture will be represented by a sequence of points that will need to be interpolated into a path and compared to the existing path. The…
Atomix
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Kinect for Windows gesture recognition

I have been looking at the Kinect for Windows release notes and features, since I want to incorporate gesture recognition in my project as well. At the above page, the first line mentions that "The Kinect for Windows SDK enables developers to create…
user1240679
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Recognize numbers using gestures

I want to recognize numbers using gestures through coding. I've recognized using gesture library. Is there any possibility to recognize numbers perfectly? Please suggest any sample code.
Taruni
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Tracing an SVG path

I'm currently working on an app that will teach users how to write a foreign character(Character Tracing/Alphabet Tracing) such as Kanji, Hangul, Arabic and etc. I made the characters through Adobe Illustrator and imported it as XML file in Android.…
vidalbenjoe
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Xamarin Form Error Value cannot be null. Parameter name: type

All day I was receiving this very clear (not the sarcasm) error message "Value cannot be null. Parameter name: type" I was hitting my head against the wall slowly decomposing my code until I could figure out the exact cause of the problem. After…
George M Ceaser Jr
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iPad Gesture Recognizer - Delayed Response

In my app I have added the new Gesture Recognizers that are available in the 3.2 SDK. Everything appears to be working correctly and the response time on the screen been very fast. But for some reason when I add requireGestureRecognizerToFail to…
Maddoxx
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Gesture detection on Fragment

I have an Activity which holds a single Fragment: getFragmentManager().beginTransaction().add(android.R.id.content, fragment1).commit(); My question is, how can i detect gestures? I tried with OnTouchListener, also with onInterceptTouchEvent…
WonderCsabo
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Shape Pattern Matching Algorithm in Java

I'm looking for a Java implementations of shape matching algorithms. here's an image to demonstrate of what i had in mind : I would also be interested to know if there are any good free implementations ofgestures recognition for Android
Pavel 'PK' Kaminsky
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Can you make custom events with UIControlEventApplicationReserved?

I have written a subclass of UIControl that tracks a number of gestures that are of interest to me. In the documentation for the UIControlEvents enumeration, it says that there is a range of event numbers called UIControlEventApplicationReserved…
Leo
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