iphone中的边框图像

Question

我想在我的iPhone应用程序中应用不同的边框图像。我从相机捕捉图像。现在我有一些不同的边框，我想将该边框应用于图像。我怎么做 ？？

Answer 1

- (UIImage*)imageWithBorderFromImage:(UIImage*)source 
{ 
    CGSize size = [source size]; 
    UIGraphicsBeginImageContext(size); 
    CGRect rect = CGRectMake(0, 0, size.width, size.height); 
    [source drawInRect:rect blendMode:kCGBlendModeNormal alpha:1.0]; 

    CGContextRef context = UIGraphicsGetCurrentContext(); 
    CGContextSetRGBStrokeColor(context, 1.0, 0.5, 1.0, 1.0); 
    CGContextStrokeRect(context, rect); 
    UIImage *testImg = UIGraphicsGetImageFromCurrentImageContext(); 
    UIGraphicsEndImageContext(); 
    return testImg; 

}