how to detect doubletap without triggering silgeltap in sencha touch
is there a smart and simple way to detect a doubletap without triggerin开发者_如何学Cg a silgeltap in sencha touch?
thnx!
I don't think there is a 'clean' way to do it. It will delay the single tap option by 300ms which may be unacceptable. You may want to simplify your UI interactions if you can. Maybe a tap and hold?
I found this code in the Sencha Touch forums.
setupEventHandlers: function(){
this.mon(this.el, {
tap: function(e){
if(this.delayedTask == null){
//setup a delayed task that is called IF double click is not later detected
this.delayedTask = new Ext.util.DelayedTask(
function(){
this.doSomethingInteresting();
this.delayedTask = null;
}, this);
//invoke (with reasonable time to cancel)
this.delayedTask.delay(300);
}
},
doubletap: function(e){
//cancel and clear the queued single click tasks if it's there
if(this.delayedTask != null){
this.delayedTask.cancel();
this.delayedTask = null;
}
//handle the double click
this.doSomethingReallyInteresting();
},
scope: this
});
},
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