[英]Swift Convert string Base64 to UIImage
I'm trying to convert base 64 encoded string to UIImage
with the following code: 我正在尝试使用以下代码将base 64编码的字符串转换为UIImage
:
let decodedData = NSData(base64EncodedString: base64String!, options: NSDataBase64DecodingOptions(rawValue: 0) )
print(decodedData) //I get data here (It is not nil)
var decodedimage = UIImage(data: decodedData!) //return nil
The decodedData
seems fine, Why do I get nil
when converting to UIImage
? 似乎已decodedData
很好,为什么在转换为UIImage
时我得到nil
?
Try to pass no options, I also recommend using unwrap for optionals : 尝试不传递任何选项,我也建议对选项使用unwrap:
if let string = base64String {
let decodedData = NSData(base64EncodedString: base64String!, options: [])
if let data = decodedData {
var decodedimage = UIImage(data: data)
} else {
print("error with decodedData")
}
} else {
print("error with base64String")
}
For Swift 4.2 对于Swift 4.2
if base64String != nil {
let decodedData = NSData(base64Encoded: base64String!, options: [])
if let data = decodedData {
let decodedimage = UIImage(data: data as Data)
cell.logo.image = decodedimage
} else {
print("error with decodedData")
}
} else {
print("error with base64String")
}
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