topic Re: Feature Layer double TAP point in ArcGIS JavaScript Maps SDK Questions

Feature Layer double TAP point

JeffPace — Thu, 15 May 2014 19:17:16 GMT

I am having trouble listening for a double tap event on a feature layer point.

Click and dbl click work fine on the desktop. Tap works fine to select a point on iOS. But I can't seem to get doubletap to fire

I even tried using the dojox/gestures but to no avail

Any ideas?

Re: Feature Layer double TAP point

JeffPace — Wed, 28 May 2014 17:29:29 GMT

anyone? could really use some guidance on this

Re: Feature Layer double TAP point

JeffPace — Thu, 29 May 2014 14:30:40 GMT

still really struggling here. FeatureLayer has click, dbl-click, mouse over, mouse out, etc.. where are the touch events?

Re: Feature Layer double TAP point

JeffPace — Mon, 02 Jun 2014 17:12:47 GMT

to the top. anyone?

Re: Feature Layer double TAP point

ReneRubalcava — Thu, 05 Jun 2014 19:25:20 GMT

You ever hear anything? This is holding me up on something too.
Double-click or double-tap, whatever is used internally must work in the API, because I can use it to zoom in the map, just not on FeatureLayers.

Re: Feature Layer double TAP point

JeffPace — Thu, 05 Jun 2014 19:37:57 GMT

nothing. I am about to delve into the obfuscated API.

Re: Feature Layer double TAP point

ReneRubalcava — Thu, 05 Jun 2014 21:06:18 GMT

Well, I kind of found hacky workaround.

Double-tap works, still testing other gestures like hold.

// get the map id, coincides with DOM element id. var nodeId = this.map.id; // get the graphics container node, it looks like "map-id_gc" var node = dom.byId(nodeId+'_gc'); // listen for doubletap on the graphics container of svg graphics on(node, tap.doubletap, lang.hitch(this, function(e) {     // I keep an array of layers to search through, but you could just     // work off a single layer     arrayUtils.forEach(layersArray, function(lyr) {       var i = lyr.graphics.length;       while(i--) {         // get a graphic         var graphic = lyr.graphics;         // get the node of the graphic         var gnode = graphic.getNode();         // if the node and the doubletap target are a match         // do what you want to do         if (gnode === e.target) {           e.graphic = graphic;           // I pass this on to my original double-click           // handler and just add the graphic to the event           // pretty much a duplicate of the dbl-click event           this.onLayerDblClick(e);         }       }     }, this);   }) );

This is working so far, I'm just going to see if I can incorporate Modernizr tests to check for when I have to do this.
https://github.com/Modernizr/Modernizr/blob/master/feature-detects/touchevents.js

*edit - this does work for hold too, so I'm pretty happy with it. Although hold seems to have same issues discussed here http://forums.arcgis.com/threads/111887-Graphics-mouse-down-alert-boom.
That work around doesn't seem to work with hold, so as long as I distinguish when to use which events based on touch events, everything works as expected.

Re: Feature Layer double TAP point

JeffPace — Fri, 06 Jun 2014 12:00:13 GMT

absolutely beautiful.

I already had a layerArray that i use as well, so this just dropped in.

Many many thanks

Re: Feature Layer double TAP point

ReneRubalcava — Tue, 26 Aug 2014 13:38:04 GMT

I'm curious if getting double-tap to work in an upcoming version of the API is on the roadmap anywhere. Mobile editing is pretty key and although the hack I posted still works, I am finding it can interfere with some other click events on the map. I am still trying to work around this issue in my particular case, so it may work fine for others. It would however be nice if the API could check for touch events and fallback to those as needed behind the scenes.

By the way, I have created a widget that implements the above hack.

odoe/esri-simpleedit-widget · GitHub

Re: Feature Layer double TAP point

JeffPace — Tue, 26 Aug 2014 16:14:32 GMT

it didnt work for me b/c of the click event conflicts. Jonathan Uihlein‌ indicated it is on the roadmap, but I am not sure where.

It is desperately need.

Re: Feature Layer double TAP point

JonathanUihlein — Tue, 02 Sep 2014 17:24:01 GMT

Jeff is right that it is being looked at.

There are some 'gotchas' in different device/browser combos which, unfortunately, require their own specific logic.

Ideally, there would be events for tap, swipe, drag and hover. There are some fantastic use-cases for each of these.

No ETA yet but this enhancement may end up being a part of 4.0 if time is an issue.

Re: Feature Layer double TAP point

JeffPace — Wed, 03 Sep 2014 17:10:40 GMT

Thank you. It is nice to know its on the list so to speak, so I dont have to spend alot of time on work arounds.

Thanks Jonathan Uihlein‌

Re: Feature Layer double TAP point

JeffPace — Mon, 12 Jan 2015 19:02:56 GMT

Jonathan Uihlein‌ is doubletap still being looked at? it is still not working in 3.12