shuffle array

http://inobi.org/shuffle-array-di-objective-c/

http://www.cocoanetics.com/2009/04/shuffling-an-nsarray/

grid view

http://www.zubizubilabs.com/zzgridview.html

segmentation,slider

http://iphonesdkdev.blogspot.com/2009/01/iphone-sample-source-code-uislider.html

NSOperation

http://www.icodeblog.com/2010/03/04/iphone-coding-turbo-charging-your-apps-with-nsoperation/

create dynamic height for uilabel

Dynamic height 

+(float) calculateHeightOfTextFromWidth:(NSString*) text: (UIFont*)withFont: (float)width :(UILineBreakMode)lineBreakMode
{
[text retain];
[withFont retain];
CGSize suggestedSize = [text sizeWithFont:withFont constrainedToSize:CGSizeMake(width, FLT_MAX) lineBreakMode:lineBreakMode];
 
[text release];
[withFont release];
 
return suggestedSize.height;
}

Webview Links

http://nickharris.wordpress.com/2010/06/17/fast-uitableviewcell-with-a-uiwebview/

http://blog.digitalneurosurgeon.com/?p=523


http://blog.sallarp.com/iphone-ipad-get-user-agent-for-uiwebview/


http://blog.penso.info/2009/08/02/uiwebview-in-uitableview/


http://snipplr.com/view/29213/uiwebview-displaying-a-network-loading/