6

我正在开发一个社交网站，我有一个带有多个单元格（行）的 TableView，在每个单元格中我都有一个“评论”和“喜欢”Imageview，所以每当更新来自服务器时，我必须增加“评论”的数量”和“喜欢”通过徽章。那么如何在 Swift 的 TableViewCell 中的 UIImageView 上添加徽章

4

3 回答 3

5

您可以通过这种方式在 UIImageView 上添加徽章

func drawImageView(mainImage: UIImage, withBadge badge: UIImage) -> UIImage
{
    UIGraphicsBeginImageContextWithOptions(mainImage.size, false, 0.0)
    mainImage.drawInRect(CGRectMake(0, 0, mainImage.size.width, mainImage.size.height))
    badge.drawInRect(CGRectMake(mainImage.size.width - badge.size.width, 0, badge.size.width, badge.size.height))

    let resultImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
    return resultImage
}

然后使用这个功能

    let mainImage = UIImage(named: "main_image_name_here")
    let badgeImage = UIImage(named: "badge_icon_name_here")
    let myBadgedImage: UIImage = drawImageView(mainImage!, withBadge: badgeImage!)
    myImageView.image = myBadgedImage//set Image on ImageView
于 2016-04-06T06:10:22.090 回答
2

看看这个MIBadgeButton-Swift

祝你好运

于 2016-04-12T16:10:26.140 回答
0

RDC 在 SWIFT 3 中的回答

func drawImageView(mainImage: UIImage, withBadge badge: UIImage) -> UIImage {
    UIGraphicsBeginImageContextWithOptions(mainImage.size, false, 0.0)
    mainImage.draw(in: CGRect(x: 0, y: 0, width: mainImage.size.width, height: mainImage.size.height))
    badge.draw(in: CGRect(x: mainImage.size.width - badge.size.width, y: 0, width: badge.size.width, height: badge.size.height))

    let resultImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()!
    UIGraphicsEndImageContext()
    return resultImage
}
于 2017-03-06T16:36:23.000 回答