CODEWITHSUNDEEP
apache-flexflashperformancecs3
Young
Young

Reputation: 8356

A question about the performance of htmlText in TextField

I have got a performance problem about TextField.htmlText +=msg.And I know thatTextField.appendText(msg) works better than TextField.text +=msg.So I wonder if there's some method better than TextField.htmlText +=msg?Any help would be appreciated.

Regards

Spawn

Upvotes: 2

Views: 251

Answers (2)

Robusto
Robusto

Reputation: 31883

Concatenate your text in a variable before assigning it to the htmlText property of any control. Every time you change that property you are calling all the lifecycle display methods like commitProperties, measure, and updateDisplayList, all of which take time to render.

Upvotes: 1

grapefrukt
grapefrukt

Reputation: 27045

I haven't benchmarked it, but what I normally do is this:

var str:String = "bla bla";

for(var i:int = 0; i < 10; i++){
    str += " foo";
}

myTextfield.htmlText = str;

However, it's likely not that much of a boost unless you're doing large amounts of text and/or iterations.

Upvotes: 2

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