How do I prevent event bubbling in a Titanium Alloy view?

Try:

function doStuff(e){
    e.cancelBubble = true;
    alert('hello');
}

Suppose you have written this code in xml file:

<View id = “parent” onClick = “parentClicked”>
        <ImageView id=“sampleImage”  onClick= “childImageClicked”>
        </ImageView> 

</View>

Then

Try this in TSS :

“#sampleImage” : {

 bubbleParent : false,

}

or if you want to do it in Javascript :

function function_name(e){

    e.cancelBubble = true;
}

http://docs.appcelerator.com/platform/latest/#!/api/Titanium.Event-property-cancelBubble

I hope this will work for you.