How to set an image to fill in full view?

Question

i am using below code for fill rgba forful view. but i am getting half(1/2) width only. anybody please inform me anything wrong with my code.

             CGContextRef bitmap = CGBitmapContextCreate(
             rgba,
             width,     // width = 320
             height,        // 460
             8               //CGImageGetBitsPerComponent(imageRef),    
             4 * width, // rowbytes
             colorSpace,
             kCGImageAlphaNoneSkipLast);
             );

you mean your main view with 320x460 px – Neo Sep 25 '12 at 10:04 — Neo, Sep 25 '12 at 10:04
hi neo ya my screen width is 320X460 i am getting 160X460 – sreenivas Sep 25 '12 at 10:06 — sreenivas, Sep 25 '12 at 10:06

score 0 · Answer 1 · answered Sep 25 '12 at 10:05

0

Try using:width * [UIDevice currentDevice].scale instead of width and height * [UIDevice currentDevice].scale instead of height.

Remember that your device can have a Retina screen and your 320px view is in fact a 640px view. (scale = 2)

answered Sep 25 '12 at 10:05

fbernardo

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How about scaling your Core Graphics context with CGContextScaleCTM? Have you tested this in retina and non-retina? – fbernardo Sep 25 '12 at 11:53

How to set an image to fill in full view?

1 Answers1