My MPMediaplayer is working pretty well for Music, but when I start working with Podcasts things are different.
I'm trying to get two things:
1) The name the Podcast Title ("This American Life")
2) The Episode Title ("My Holiday")
This line of code works fine to get the Podcast Title:
let podTitle:String = (myMP.nowPlayingItem?.podcastTitle)!
However this line should get the Episode Title:
let episode:String = myMP.nowPlayingItem?.value(forProperty: "MPMediaItemPropertyTitle") as! String
but causes a crash with this error:
fatal error: unexpectedly found nil while unwrapping an Optional value
How can I get the Episode Title for a given Podcast?
MPMediaItemPropertyTitle is not the string property key; it is the name of a constant whose value is the property key. So, where you have
let episode:String =
myMP.nowPlayingItem?.value(forProperty: "MPMediaItemPropertyTitle") as! String
...remove the quotation marks:
let episode:String =
myMP.nowPlayingItem?.value(forProperty: MPMediaItemPropertyTitle) as! String
I think what you are doing is still very foolish (you are asking to crash), but at least this way you stand a chance of success. What I do is actually more like this:
let temp = myMP.nowPlayingItem?.value(forProperty: MPMediaItemPropertyTitle)
let episode = temp as? String ?? ""
That way you always end up with a string, which may be empty if there's a problem, and you won't crash.
Related
So I'm using a TextField with a formatter, the issue is unless the user hits return that value is not captured which is causing some distress for users, even though I have added a label stating they should hit return, but in fairness it doesn't seem professional. How can I combat this issue? Is there a way in which I can capture the input as the user inputs data into the textfield, as well as formatting the input simultaneously?
This is my code:
var currencyFormatter: NumberFormatter = {
let val = NumberFormatter()
val.numberStyle = .currency
val.currencyCode = "GBP"
return val
}()
TextField("0", value: $viewModel.price, formatter: currencyFormatter)
.foregroundColor(Color(SYSTEM_FONT_COLOUR))
Thank you.
I used to be quite proficient in VBA with excel, but I'm currently trying to do something with Google Scripts and I am well and truly stuck.
Basically, I am trying like to extract data out of a standardised email from Gmail into a Google sheet. There are a couple of other threads on the subject which I have consulted so far, and I can get the body of the email into the sheet but cannot parse it.
I am new to regex, but it tests OK on regex101
I am also brand new to Google Script, and even the debugger seems to have stopped working now (it did before, so would be grateful if anyone can suggest why this is).
Here is my basic function:
function processInboxToSheet() {
var label = GmailApp.getUserLabelByName("NEWNOPS");
var threads = label.getThreads();
// Set destination sheet
var sheet = SpreadsheetApp.getActiveSheet();
// Get all emails labelled NEWNOPS
for (var i = 0; i < threads.length; i++) {
var tmp,
message = threads[i].getMessages()[1], // second message in thread
content = message.getPlainBody(); // remove html markup
if (content) {
// search email for 'of:' and capure next line of text as address
// tests OK at regex101.com
property = content.match(/of:[\n]([^\r\n]*)[\r\n]/);
// if no match, display error
var property = (tmp && tmp[1]) ? tmp[1].trim() : 'No property';
sheet.appendRow([property]);
} // End if
// remove label to avoid duplication
threads[i].removeLabel(label)
} // End for loop
}
I can append 'content' to the sheet Ok, but cannot extract the address text required by the regex. Content displays as follows:
NOPS for the purchase of:
123 Any Street, Anytown, AN1 1AN
DATE: 05/05/2017
PRICE: £241,000
Seller’s Details
NAME: Mrs Seller
Thanks for reading :)
The return value of .match() is an array. The first captured group, containing the address, will be at index 1.
Based on the following line after your call to .match(), it looks like the tmp variable should have been assigned that array, not the property variable.
var property = (tmp && tmp[1]) ? tmp[1].trim() : 'No property';
That line says, if .match() returned something that isn't null and has a value at index 1, then trim that value and assign to property, otherwise assign it the string 'No property'.
So, try changing this line:
property = content.match(/of:[\n]([^\r\n]*)[\r\n]/);
To this:
tmp = content.match(/of:[\n]([^\r\n]*)[\r\n]/);
Thanks Kevin, I think I must have changed it while debugging.
The problem was with my regexp in the end. After a bit of trial and error the following worked:
tmp = content.match(/of:[\r\n]+([^\r\n]+)/);
I'm newbie, plz help me to solve this out, I still have lots of other things to work on, really thank you thank you very much!
This is a further question after How to use FMDB on the generic iOS device instead of simulator?
When I execute the app on my device and the error threw out: "no such table: Student info", I've print all the path and they all pointed to the same file so I assumed the database has already copied? Console shows like this:
file:///var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/
file:///var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/Data.db
/var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/Data.db
file:///var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/
file:///var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/Data.db
/var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/Data.db
/var/mobile/Containers/Data/Application/B5E42F3C-524E-4BBF-8667-1EED0C963A77/Documents/Data.db
<NSFileManager: 0x17401c1b0>
2017-03-13 16:43:25.446039 Test1.3[16360:5045427] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2017-03-13 16:43:25.457278 Test1.3[16360:5045427] [MC] Reading from public effective user settings.
Insert failed:
Optional("no such table: Student info")
The Data.db is in my bundle resources in target; and the contents in my device is a blank Data.db;
The 2nd question: If you look at the Utility.Swift in the previous question, although the app works good on simulator but after it was loaded, there should be an alertView said "Your database copy successfully", but it didn't. Following is that part of the code:
class func copyFile(_ fileName: NSString){
let dbPath: String = getPath(fileName as String)
let fileManager = FileManager.default
print(dbPath)
print(fileManager)
if !fileManager.fileExists(atPath: dbPath) {
let documentsURL = Bundle.main.resourceURL
let fromPath = documentsURL!.appendingPathComponent(fileName as String)
var error : NSError?
do {
try fileManager.copyItem(atPath: fromPath.path, toPath: dbPath)
}
catch let error1 as NSError {
error = error1
}
if(error != nil){
self.invokeAlertMethod("Error Occured", strBody: "\(error?.localizedDescription)" as NSString, delegate: nil)
}
else{
self.invokeAlertMethod("Successed", strBody: "Your database copy successfully", delegate: nil)
}
}
}
Okay for answering this question I went through your demo.
Where I found couple of mistakes. Let me go through one by one.
1) Your class Utility have a getPath method. What it does it will
keep copying db every time although db is already present in documents
directory and your documents directory db will be replaced with the sample structure. You should always check that if db is already present in documents directory or not.
2) Your db was getting copied into documents directory but structure
wasn't. There was no Student info table in db of documents directory.
3) Please avoid using space or any special characters in table names.
So what I did just corrected your method getPath in utility class.
Please replace your method with this one
class func getPath(_ fileName: String) -> String {
let bundlePath = Bundle.main.path(forResource: "Data", ofType: ".db")
let destPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
let fileManager = FileManager.default
let fullDestPath = URL(fileURLWithPath: destPath).appendingPathComponent("Data.db")
if fileManager.fileExists(atPath: fullDestPath.path){
print("Database file is exist")
print(fileManager.fileExists(atPath: bundlePath!))
}else{
do{
try fileManager.copyItem(atPath: bundlePath!, toPath: fullDestPath.path)
}catch{
print("\n",error)
}
}
print(fullDestPath.path)
return fullDestPath.path
}
After changing this piece of code I tried to run in my device and inserted couple of records.
Let me know if you have any more questions.
If you find this answer helpful just accept it.
First trying delete your app and then reinstall it.
OR
I have created a project over FMDB in Swift which you can use to solve your issue. FMDB Wrapper class you can use in Objective C project as well.
https://github.com/LalitKY/Swift-FMDB
Hope this helps.
The IBM Watson iOS SDK using the Alchemy News service on Bluemix returns a string result which requires parsing to pull out the fields like url and cleaned title. ref: https://github.com/watson-developer-cloud/swift-sdk
I pull the string into an array and parse it in swift3 using some string methods but this is pretty ordinary and can produce unpredictable results
Is there a more elegant approach where I can access specific fields, like the url and cleaned title which I am passing to a UITableViewCell to select and segue to the url link.
sample code:
let alchemyDataNews = AlchemyDataNews(apiKey: apiKey)
let failure = { (error: Error) in print(error) }
let start = "now-14d" // 7 day ago
let end = "now" // today
let query = ["count": "15",
"dedup": "true",
"q.enriched.url.title": "[IBM]",
"return": "enriched.url.url,enriched.url.title" "enriched.url.title,enriched.url.entities.entity.text,enriched.url.entities.entity.type"]
Also I have noticed the search string [IBM] has a prefix of 0, i.e. 0[IBM] and have also seen an "A". What do these prefixes mean and where are they documented
Here is one way you can access the fields from a returned payload.
alchemyDataNews.getNews(from: "now-4d", to: "now", query: queryDict, failure: failWithError) { news in
for doc in (news.result?.docs)! {
var cleanedTitle = doc.source?.enriched?.url?.cleanedTitle
var author = doc.source?.enriched?.url?.author
var title = doc.source?.enriched?.url?.title
}}
Also, here is a nice API reference link for alchemy data which contains all of the request parameters and filters.
https://www.ibm.com/watson/developercloud/alchemydata-news/api/v1/
I am using Swift 3 and facebook login, and save some basic values i get from the facebookSDKGraphrequest in user defaults like this:
// save basic settings in standard user defaults: age, gender, first name
let defaults = UserDefaults.standard
defaults.set(firstName!, forKey: "firstName")
defaults.set(gender!, forKey: "gender")
let currentUserAge = calculateAge(birthday: birthDay!)
defaults.set(currentUserAge, forKey: "age")
I only need to run that code once when the user logs in, then I save the info into userDefaults, and I'm set.
so the issue i Have is that recently, the last few times I build and open my app on the phone, my userDefaults was empty.
when I run this code in another class,
let defaults = UserDefaults.standard
var name = defaults.object(forKey: "firstName") as? String
var age = defaults.integer(forKey: "age")
var gender = defaults.object(forKey: "gender") as? String
I was getting nil for all those values. So now I'm paranoid because if this happens in a user's app, it will crash.
Can someone explain why UserDefaults would lose its memory?
I did nothing to delete or reset the values. I went through probably 100 builds and this last time, UserDefaults' values were nil.
NSUserDefaults does not store immediately its content to disk. synchronize method is called periodically to write data to disk. It seems it is not called in your case. Try call defaults.synchronize when you have finished setting up your values.
(source : https://developer.apple.com/reference/foundation/userdefaults/1414005-synchronize)