[TIMOB-1132] removeEventListener not removing events

GitHub Issue	n/a
Type	Bug
Priority	Medium
Status	Closed
Resolution	Invalid
Resolution Date	2011-04-15T02:44:53.000+0000
Affected Version/s	n/a
Fix Version/s	Release 1.5.0
Components	iOS
Labels	n/a
Reporter	rjamesy
Assignee	Reggie Seagraves
Created	2011-04-15T02:44:53.000+0000
Updated	2017-03-02T19:22:12.000+0000

Description

I have not been able to get the removeEventListener to work and have included a simple example below.

Basically if you click button one, you get an alert event. Clicking button two should remove the click eventListener from button 1.... but its doesn't.

var testButton = Titanium.UI.createButton({
    top:30,
    width:100,
    height:33,
    title:'button 1'
});
testButton.addEventListener('click', function() {
    alert('Hello, world!');
});
 
var testButton2 = Titanium.UI.createButton({
    top:70,
    width:100,
    height:33,
    title:'button 2'
});
testButton2.addEventListener('click', function() {
    testButton.removeEventListener('click');
});
 
win1.add(testButton);
win1.add(testButton2);

Comments

Stephen Tramer 2011-04-15

You should use code like the following:

   var win1 = Ti.UI.createWindow();
   
   var f = function() {
       alert('Hello, world!'); 
   }
   
   var testButton = Titanium.UI.createButton({
       top:30,
       width:100,
       height:33,
       title:'button 1'
   });
   testButton.addEventListener('click', f);
    
   var testButton2 = Titanium.UI.createButton({
       top:70,
       width:100,
       height:33,
       title:'button 2'
   });
   testButton2.addEventListener('click', function() {
       testButton.removeEventListener('click',f);
   });
    
   win1.add(testButton);
   win1.add(testButton2);
   win1.open();

You are required to pass in a reference to the listener function at the time of removal.

Lee Morris 2017-03-02

Closed as invalid.

JSON Source