I have the following code working on playground, and I get the array at imageURLs.
let imagePath = str
let url = NSURL(fileURLWithPath: imagePath)
let fileManager = FileManager.default
let properties = [URLResourceKey.localizedNameKey, URLResourceKey.creationDateKey, URLResourceKey.localizedTypeDescriptionKey]
let imageURLs = try fileManager.contentsOfDirectory(at: url as URL, includingPropertiesForKeys: properties, options:FileManager.DirectoryEnumerationOptions.skipsHiddenFiles)
Then I add "do" "catch" to handle the errors on the project but it stops working.
let imagePath = Gal.urlDirectorio
let url = NSURL(fileURLWithPath: imagePath)
let fileManager = FileManager.default
let properties = [URLResourceKey.localizedNameKey, URLResourceKey.creationDateKey, URLResourceKey.localizedTypeDescriptionKey]
do { imageURLs = try fileManager.contentsOfDirectory(at: url as URL, includingPropertiesForKeys: properties, options:FileManager.DirectoryEnumerationOptions.skipsHiddenFiles)
} catch {
}
I follow the debugging process and everthing works until the "do" line. I have no error but it doesn't add the urls to the array.
Related
Hello with the new beta 2 i got a new problem that i couldn't solve.
var message = MSMessage()
var template = MSMessageTemplateLayout()
viewDidLoad() {
if let filePath2 =
Bundle.main().pathForResource("synth", ofType: "wav") {
let fileUrl = NSURL(string: filePath2)
let URL2 = fileUrl as! URL
template.mediaFileURL = URL2
}
message.layout = template
guard let conversation = activeConversation else {
fatalError("Expected a conversation") } conversation.insert(message,
localizedChangeDescription: nil) { error in
if let error = error {
print(error)
}
}
}
anyone else have the same problem? there's something wrong with conversation
There is no MSConversation method insert(_:localizedChangeDescription:). Look at the docs and see.
Did you mean insert(_:completionHandler:)? If so, just delete the second parameter.
Here`s my code:
let fileName = "someFileName"
func saveDataToFile(urlStr:String){
let url = NSURL(string: urlStr)
var data:NSData!
let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
let directory = paths[0]
let filePath = directory.stringByAppendingPathComponent(self.fileName)
print(filePath)//prints /Users/.../Library/Developer/CoreSimulator/Devices/1013B940-6FAB-406B-96FD-1774C670A91E/data/Containers/Data/Application/2F7139D6-C137-48BF-96F6-7579821B17B7/Documents/fileName
let fileManager = NSFileManager.defaultManager()
data = NSData(contentsOfURL: url!)
print(data) // prints a lot of data
if data != nil{
fileManager.createFileAtPath(filePath, contents: data, attributes: nil)
}
}
Now I want to read this data:
func readDataFromFile(){
let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
let directory = paths[0]
let filePath = directory.stringByAppendingPathComponent(self.fileName)
print(filePath) // prints the same path
let fileManager = NSFileManager.defaultManager()
if fileManager.fileExistsAtPath(filePath){
data = fileManager.contentsAtPath(filePath)
}else{
print("*****BAD*****") // always prints this which means that file wasn`t created
}
}
What`s wrong with the first func? What is the right way to save file to DocumentDirectory?
OK, in this case the answer was following:
First need to create directory (aka folder) and only after that create file inside that directory.
Added to code this:
let fullDirPath = directory.stringByAppendingPathComponent(folderName)
let filePath = fullDirPath.stringByAppendingPathComponent(fileName)
do{
try fileManager.createDirectoryAtPath(fullDirPath, withIntermediateDirectories: false, attributes: nil)
}catch let error as NSError{
print(error.localizedDescription)
}
And as I said after this you create your file:
fileManager.createFileAtPath(filePath, contents: data, attributes: nil)
Thanks to Eric.D
Hope someone will find this useful.
I'm currently programming an os x application with swift, but I can't figure how to loop through or even get the names of all folders at a certain path. Maybe something with fm.enumeratorAtPath?
I use enumeratorAtURL. Here's some code that shows an example of how to print the directories in the user's home directory.
if let dirURL = NSURL(fileURLWithPath: NSHomeDirectory()) {
let keys = [NSURLIsDirectoryKey, NSURLLocalizedNameKey]
let fileManager = NSFileManager.defaultManager()
let enumerator = fileManager.enumeratorAtURL(
dirURL,
includingPropertiesForKeys: keys,
options: (NSDirectoryEnumerationOptions.SkipsPackageDescendants |
NSDirectoryEnumerationOptions.SkipsSubdirectoryDescendants |
NSDirectoryEnumerationOptions.SkipsHiddenFiles),
errorHandler: {(url, error) -> Bool in
return true
}
)
while let element = enumerator?.nextObject() as? NSURL {
var getter: AnyObject?
element.getResourceValue(&getter, forKey: NSURLIsDirectoryKey, error: nil)
let isDirectory = getter! as Bool
element.getResourceValue(&getter, forKey: NSURLLocalizedNameKey, error: nil)
let itemName = getter! as String
if isDirectory {
println("\(itemName) is a directory in \(dirURL.absoluteString)")
//do something with element here.
}
}
}
When loading a local resource file in a mac app
let urlpath = NSBundle.mainBundle().pathForResource("myResource", ofType: "html");
Converting the resource path to a string for NSURL always returns nil
println("resource path = \(urlpath)") <---resource logged ok
web.frameLoadDelegate = self;
let requesturl = NSURL(string: urlpath!)
println("URL String = \(requesturl)"),<---- returns nil
let request = NSURLRequest(URL: requesturl!)
web.mainFrame.loadRequest(request)
Which presumably is why im getting the error found nil while unwrapping an Optional value
What am I missing here to correctly convert the pathForResource to a string?
if let myFileUrl = NSBundle.mainBundle().URLForResource("yourFile", withExtension: "html"){
// do whatever with your url
}
The code given in Leonardo's answer should work and is the easier and safer
method with optional binding. Here is an explanation why your
code fails:
let requesturl = NSURL(string: urlpath!)
returns nil because urlpath is a file path and not an URL string
(such as "file:///path/to/file").
If you replace that line with
let requesturl = NSURL(fileURLWithPath: urlpath!)
then you will get the expected output.
For Swift 5
let path = Bundle.main.path(forResource: "myResource", ofType: "html")
let url = URL(fileURLWithPath: path!)
I would like to list all files in my iTunes shared folder in a 'Table View' using Swift.
I check on Google and nobody talk about it, it look like it's a uncommon need, so if anyone can help it would be really helpful.
EDIT: I found three links talking about it but in Objective-C, I have no experience in this language. If someone understand this, here are the links.
http://www.exampledb.com/objective-c-get-itunes-file-sharing-folder-files-with-full-path.htm
http://www.infragistics.com/community/blogs/stevez/archive/2013/10/14/ios-objective-c-working-with-files.aspx
http://www.raywenderlich.com/1948/itunes-tutorial-for-ios-how-to-integrate-itunes-file-sharing-with-your-ios-app
Based on this objective-C tutorial http://mobiforge.com/design-development/importing-exporting-documents-ios, I created three methods: listFilesFromDocumentsFolder which returns a list of the names of all documents I have in the apps iTunes shared folder and loadFileFromDocumentsFolder which loads the url for a given filename and passes the url to handleDocumentOpenUrl to load the file on a UIWebView. Find below the three methods.
You can also download the project from github: https://github.com/Euniceadu/Load-Shared-Documents
listFilesFromDocumentsFolder
func listFilesFromDocumentsFolder() {
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
var documentsDirectory : String;
documentsDirectory = paths[0] as String
var fileManager: NSFileManager = NSFileManager()
var fileList: NSArray = fileManager.contentsOfDirectoryAtPath(documentsDirectory, error: nil)!
var filesStr: NSMutableString = NSMutableString(string: "Files in Documents folder \n")
for s in fileList {
filesStr.appendFormat("%#", s as String)
}
self.displayAlert(filesStr)
}
loadFileFromDocumentsFolder
func loadFileFromDocumentsFolder(fileName: String) {
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
var documentsDirectory : String;
documentsDirectory = paths[0] as String
var filePath: String = documentsDirectory.stringByAppendingPathComponent(fileName);
var fileUrl: NSURL = NSURL(fileURLWithPath: filePath);
self.handleDocumentOpenURL(fileUrl)
}
handleDocumentOpenUrl
func handleDocumentOpenURL(url: NSURL) {
var requestObj = NSURLRequest(URL: url)
webView.userInteractionEnabled = true
webView.loadRequest(requestObj)
}
Hope this helps.