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zonble/iPhone 上產生一個新的 Image context

Created February 2, 2010 10:11
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在 iPhone 上產生一個新的 image context 並且產生 UIImage
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iPhone 上產生一個新的 Image context
// 每次都忘記要這樣開頭…
UIGraphicsBeginImageContext(CGSizeMake(320.0, 320.0));
CGContextRef context = UIGraphicsGetCurrentContext();
defaultCoverImage = [UIGraphicsGetImageFromCurrentImageContext() retain];
UIGraphicsEndImageContext();
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