Re: Improving speed of NSCollectionView scrolling
Re: Improving speed of NSCollectionView scrolling
- Subject: Re: Improving speed of NSCollectionView scrolling
- From: Mike Abdullah <email@hidden>
- Date: Wed, 9 Dec 2009 00:25:41 +0000
Read up on Instruments.
http://developer.apple.com/tools/performance/
On 8 Dec 2009, at 23:57, PCWiz wrote:
> Sorry I'm new to Obj-C/Cocoa, how would I do this performance profiling?
>
> On 2009-12-08, at 4:50 PM, Mike Abdullah wrote:
>
>>
>> On 8 Dec 2009, at 23:40, PCWiz wrote:
>>
>>> Hi,
>>>
>>> I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields).
>>>
>>> Scrolling is not smooth at all, and lags quite a bit. I'm wondering, would just drawing the text and images as part of the view in the prototype views drawRect method yield any increase in smoothness, rather than using subviews?
>>
>> Why are you asking us this now? It sounds like you haven't done any performance profiling to find out what's actually slow. Do that and then come back.
>>
>> If it suits your needs, IKImageBrowserView is somewhat faster than NSCollectionView.
>
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