Comments for iOS Guy

Comment on Understanding memory management by Augustine

Augustine — Wed, 02 May 2012 12:15:24 +0000

Nice work buddy Thanks

Comment on Creating a 3D Tag Cloud by Awes

Awes — Mon, 30 Apr 2012 05:36:18 +0000

thanks once again for replying…will try …

Comment on Creating a 3D Tag Cloud by Cezar Augustus Signori

Cezar Augustus Signori — Fri, 27 Apr 2012 13:32:37 +0000

Hi!

Actually this has to do with the amount of data you are managing. You may need to consider using layers instead of views for example, to handle more data.

Comment on Creating a 3D Tag Cloud by Cezar Augustus Signori

Cezar Augustus Signori — Fri, 27 Apr 2012 13:30:34 +0000

Hi!

Just do as I do when the user is moving the finger to rotate the sphere automatically within a animation block. Or modify the rotation method to take into consideration distance and acceleration factors.

Comment on Creating a 3D Tag Cloud by Awes

Awes — Fri, 27 Apr 2012 06:28:25 +0000

This is great thing…thanks for sharing ..how to animate this to have scrolling effect in it ..please let us know

Comment on Anti-aliasing rotated UIViews by ankhaaa1

ankhaaa1 — Thu, 26 Apr 2012 05:56:03 +0000

thanks. it works

Comment on Presenting PDF files by yourself by Emrah Ayanoglu

Emrah Ayanoglu — Wed, 04 Apr 2012 14:52:31 +0000

Thank you Cezar,

I found a solution for my problem. It is like a NSOperationQueue logic. I’ll write this solution to my blog.

Best Regards,

Comment on Presenting PDF files by yourself by Cezar Augustus Signori

Cezar Augustus Signori — Fri, 23 Mar 2012 16:04:50 +0000

Hey!

Nice question!

Actually you can improve the code I provided in both performance and quality.

You can achieve more quality while zooming for example, using a CATiledLayer instead of the usual CALayer.

And you can improve performance and usability by loading one page at a time using the UIPageViewController provided by iOS 5.

If you need to load more than one page at time for some reason (to provide a TOC with thumbnails for example..), you can make use of NSOperationQueue to handle the loading of each page and implement some sort of “view tiling” logic to render only those that are visible to the user (while scrolling for example).

Cheers!

Comment on Presenting PDF files by yourself by Emrah Ayanoglu

Emrah Ayanoglu — Fri, 23 Mar 2012 15:51:23 +0000

Everything is ok with your code; however, I have a memory and performance issues.

1) I have pdf that has 500 pages and its size is about 10 mb. When I load all the pages at once, the application crashes.

2)Also, I tried to use small caching(5-10 pages); however, if I load a new pages to cache, then I have to wait about 10-20 seconds…

What is your solution to these kind of problems…?

Comment on Creating a 3D Tag Cloud by cooleaf

cooleaf — Fri, 23 Mar 2012 04:19:33 +0000

thank you for provide so good example. but I have a question about it, I found it move slowly when i pinch it. if I want it to move more quickly, which parameters I need to adjust. thank you!