我得到了一些与APNG文件相关的问题,如果我把APNG文件放在资源包中,APNG文件动画工作得很好,但当我从资产服务器下载相同的APNG文件并将APNG文件保存到资源目录中,然后像这样使用MSSticker加载时。加载后只显示第一帧。如果有人想尝试检查APNG文件,请看看这个。
let imagePath = Bundle.main.path(forResource: imgName, ofType: ".png")
let pathurl = URL(fileURLWithPath: imagePath!)
do {
try cell.stickerview.sticker = MSSticker(contentsOfFileURL: pathurl, localizedDescription: "anything that you want")
}
catch {
fatalError("Failed to create sticker: \(error)")
}
在这里,我正在保存图像&从资源目录获取保存的图像url:
static func saveImage(image: UIImage , name:String) -> Bool? {
guard let data = UIImagePNGRepresentation(image) else {
return false
}
guard let directory = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false) as NSURL else {
return false
}
do {
try data.write(to: directory.appendingPathComponent(name)!)
return true
} catch {
print(error.localizedDescription)
return false
}
}
static func getSavedImageUrl(named: String) -> URL? {
if let dir = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false) {
return URL(fileURLWithPath: dir.absoluteString).appendingPathComponent(named)
}
return nil
}
我已经在自定义MSSticker类中编写了扩展
extension MSStickerView {
func downloadedFrom(url: URL , name: String) {
URLSession.shared.dataTask(with: url) { (data, response, error) in
guard let httpURLResponse = response as? HTTPURLResponse, httpURLResponse.statusCode == 200,
let mimeType = response?.mimeType, mimeType.hasPrefix("image"),
let data = data, error == nil,
let image = UIImage(data: data)
else { return }
DispatchQueue.main.async() { () -> Void in
// self.sticker = image
_ = GameUtil.saveImage(image: image, name: name)
if let pathurl = GameUtil.getSavedImageUrl(named: name) {
do {
try self.sticker = MSSticker(contentsOfFileURL: pathurl, localizedDescription: "Raid")
}
catch {
fatalError("Failed to create sticker: \(error)")
}
}
self.startAnimating()
}
}.resume()
}
func downloadedFrom(link: String , name: String) {
guard let url = URL(string: link) else { return }
downloadedFrom(url: url ,name: name)
}
最佳答案
我想问题是这个。为什么要将UIImagePNGRepresentation
转换为Data
,然后使用UIImage
。
尝试直接保存数据。
static func saveData(data: Data , name:String) -> Bool? {
guard let directory = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false) as NSURL else {
return false
}
do {
try data.write(to: directory.appendingPathComponent(name)!)
return true
} catch {
print(error.localizedDescription)
return false
}
}
忽略图像只是传递数据。
_ = GameUtil.saveImage(data: data, name: name)