hi i am create an universal application using iphone sdk3.2. i want to know for ipad and iphone do i need different default.png of different size.
Yes. In iPhone/iPad development the default.png file is displayed by the device automatically so you don't have to program it which is really useful. I don't have it with me, but you need different pngs for the iPad which specific names. I googled up iPad and default png and got this info from the phunkwerks site:
iPad Launch Image Orientations
To deal with various orientation options, a new naming convention has been created for iPad launch images. The screen size of the iPad is 768×1024, notice in the dimensions that follow the height takes into account a 20 pixel status bar.
Filename Dimensions
Default-Portrait.png * 768w x 1004h
Default-PortraitUpsideDown.png 768w x 1004h
Default-Landscape.png ** 1024w x 748h
Default-LandscapeLeft.png 1024w x 748h
Default-LandscapeRight.png 1024w x 748h
Default.png Not recommended
- If you have not specified a Default-PortraitUpsideDown.png file, this file will take precedence.
** If you have not specified a Default-LandscapeLet.png or Default-LandscapeRight.png image file, this file will take precedence.
Maybe I'm retarded but the image size is 1024x768 or 768x1024 respectively.. isn't it?