ios - 将 UILabel 添加到图像

Question

我正在创建一个图像，然后将其保存到用户的相机胶卷中。我想在图像中添加一些文字。我应该将字符串添加到 UILabel，然后将其转换为图像吗？

你有什么建议？谢谢。 (我正在使用 Swift)

    let bottomImage = UIImage(named: "Image1.png")
    let topImage = UIImage(named: "Image2.png")
    let anotherImage = UIImage(named: "Image3.png")

    let newSize = CGSizeMake(2480, 3508)
    UIGraphicsBeginImageContext(newSize)

    bottomImage?.drawInRect(CGRectMake(0, 0, newSize.width/2, 500))
    topImage?.drawInRect(CGRectMake(newSize.width/2, 0, newSize.width/2, 500), blendMode: kCGBlendModeNormal, alpha: 0.8)
    anotherImage?.drawInRect(CGRectMake(newSize.width/2, 500, newSize.width/2, 500), blendMode: kCGBlendModeNormal, alpha: 0.8)

    let newImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()


    UIImageWriteToSavedPhotosAlbum(newImage, nil, nil, nil)

Answer 1

您想使用 NSAttributedString drawInRect .