Swift Data(contentsOf) Arguement passed to Call that takes no Arguements
0
let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg")
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
I am trying to do the above for loading an image from url but when i type the Data(contentsOf: url) line i get an error saying "Argument passed to call that takes no argumens". What may be causing this? NSData(contentsOf: url) works but i need the Data one
ios swift xcode macos download
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
add a comment |
0
let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg")
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
I am trying to do the above for loading an image from url but when i type the Data(contentsOf: url) line i get an error saying "Argument passed to call that takes no argumens". What may be causing this? NSData(contentsOf: url) works but i need the Data one
ios swift xcode macos download
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
Are you sure that's the error you're getting? You should be getting this error:error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped yoururlvariable. (At least that's what I get when pasting this code into a playground.)
– TylerTheCompiler
Dec 31 '18 at 7:45
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I addedimport foundationbut it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.
– Kidd Kidd
Dec 31 '18 at 7:49
Is there a custom structData?
– vadian
Dec 31 '18 at 7:50
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
1
Yoururlis an optional, and you need to unwrap it.
– Martin R
Dec 31 '18 at 9:14
add a comment |
0
0
0
let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg")
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
I am trying to do the above for loading an image from url but when i type the Data(contentsOf: url) line i get an error saying "Argument passed to call that takes no argumens". What may be causing this? NSData(contentsOf: url) works but i need the Data one
ios swift xcode macos download
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg")
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
I am trying to do the above for loading an image from url but when i type the Data(contentsOf: url) line i get an error saying "Argument passed to call that takes no argumens". What may be causing this? NSData(contentsOf: url) works but i need the Data one
ios swift xcode macos download
ios swift xcode macos download
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
asked Dec 31 '18 at 7:14
Kidd KiddKidd Kidd
11
11
Are you sure that's the error you're getting? You should be getting this error:error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped yoururlvariable. (At least that's what I get when pasting this code into a playground.)
– TylerTheCompiler
Dec 31 '18 at 7:45
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I addedimport foundationbut it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.
– Kidd Kidd
Dec 31 '18 at 7:49
Is there a custom structData?
– vadian
Dec 31 '18 at 7:50
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
1
Yoururlis an optional, and you need to unwrap it.
– Martin R
Dec 31 '18 at 9:14
add a comment |
Are you sure that's the error you're getting? You should be getting this error:error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped yoururlvariable. (At least that's what I get when pasting this code into a playground.)
– TylerTheCompiler
Dec 31 '18 at 7:45
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I addedimport foundationbut it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.
– Kidd Kidd
Dec 31 '18 at 7:49
Is there a custom structData?
– vadian
Dec 31 '18 at 7:50
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
1
Yoururlis an optional, and you need to unwrap it.
– Martin R
Dec 31 '18 at 9:14
Are you sure that's the error you're getting? You should be getting this error:
error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped your url variable. (At least that's what I get when pasting this code into a playground.)– TylerTheCompiler
Dec 31 '18 at 7:45
Are you sure that's the error you're getting? You should be getting this error:
error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped your url variable. (At least that's what I get when pasting this code into a playground.)– TylerTheCompiler
Dec 31 '18 at 7:45
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I added
import foundation but it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.– Kidd Kidd
Dec 31 '18 at 7:49
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I added
import foundation but it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.– Kidd Kidd
Dec 31 '18 at 7:49
Is there a custom struct
Data?– vadian
Dec 31 '18 at 7:50
Is there a custom struct
Data?– vadian
Dec 31 '18 at 7:50
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
1
1
Your
url is an optional, and you need to unwrap it.– Martin R
Dec 31 '18 at 9:14
Your
url is an optional, and you need to unwrap it.– Martin R
Dec 31 '18 at 9:14
add a comment |
1 Answer
1
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0
url is optional variable so use optional binding
guard let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg") else {
return
}
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
add a comment |
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1 Answer
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active
oldest
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0
url is optional variable so use optional binding
guard let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg") else {
return
}
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
add a comment |
0
url is optional variable so use optional binding
guard let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg") else {
return
}
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
add a comment |
0
0
0
url is optional variable so use optional binding
guard let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg") else {
return
}
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
url is optional variable so use optional binding
guard let url = URL(string: "http://i.imgur.com/w5rkSIj.jpg") else {
return
}
let data = try? Data(contentsOf: url)
if let imageData = data {
let image = UIImage(data: imageData)
}
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
answered Dec 31 '18 at 10:30
Sourabh KumbharSourabh Kumbhar
19914
19914
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
add a comment |
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
The issue is not with the url, The Data function seems to not exist.
– Kidd Kidd
Dec 31 '18 at 13:08
add a comment |
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Are you sure that's the error you're getting? You should be getting this error:
error: value of optional type 'URL?' must be unwrapped to a value of type 'URL', because you have not unwrapped yoururlvariable. (At least that's what I get when pasting this code into a playground.)– TylerTheCompiler
Dec 31 '18 at 7:45
Yes, I am sure of the error, I'm thinking I'm missing some kind of import so I added
import foundationbut it didn't work, also I am running this in a UITableViewCell, .xib file, if that makes any difference.– Kidd Kidd
Dec 31 '18 at 7:49
Is there a custom struct
Data?– vadian
Dec 31 '18 at 7:50
No there is no custom struct data
– Kidd Kidd
Dec 31 '18 at 7:52
1
Your
urlis an optional, and you need to unwrap it.– Martin R
Dec 31 '18 at 9:14