xcode Swift 3.0 将图像写入目录
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Swift 3.0 writing Image to Directory
提问by Thegasman2000
I have a simple ImagePickerfor the user to select, or take, a profile picture. I want to save this imageto the HomeDirectoryfor easy loading later.
我有一个简单的方法ImagePicker供用户选择或拍摄个人资料图片。我想将其保存image到HomeDirectory以便以后轻松加载。
The problem is with the Image type not being set.
问题在于未设置图像类型。
//Save Image
_ = PPimagePicked.image
let imageData = UIImageJPEGRepresentation(PPimagePicked.image!, 0.6)
let compressedJPGImage = UIImage(data: imageData!)
UIImageWriteToSavedPhotosAlbum(compressedJPGImage!, nil, nil, nil)
// Get Document Root Path
let path = URL(fileURLWithPath: NSHomeDirectory()).appendingPathComponent("Documents/profile.jpg")
do {
//Save image to Root
try imageData?.write(to: path, options: .atomic)
print("Saved To Root")
} catch let error {
print(error)
}
The exact Error is :
确切的错误是：
"[Generic] Creating an image format with an unknown type is an error"
“[通用] 使用未知类型创建图像格式是错误的”
回答by Parth Adroja
Please try this code i am using it in swift 2.2. Below method includes for both UIImageJPEGRepresentation, UIImagePNGRepresentation
请试试这个代码，我在 swift 2.2 中使用它。下面的方法包括 UIImageJPEGRepresentation，UIImagePNGRepresentation
if let image = UIImage(named: "example.png") {
if let data = UIImageJPEGRepresentation(image, 0.8) {
let filename = getDocumentsDirectory().appendingPathComponent("copy.png")
try? data.write(to: filename)
}
}
func getDocumentsDirectory() -> URL {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentsDirectory = paths[0]
return documentsDirectory
}
if let image = UIImage(named: "example.png") {
if let data = UIImagePNGRepresentation(image) {
let filename = getDocumentsDirectory().appendingPathComponent("copy.png")
try? data.write(to: filename)
}
}
回答by neprocker
try converting the image to image data
尝试将图像转换为图像数据
let imageCapture = UIImage(data: dataImage)!
UIImageWriteToSavedPhotosAlbum((image: imageCapture), nil, nil, nil)
