Is it possible to read or write to plist when the application is in background state?
It is not possible to read your plist when your application is in the background, because your application is not running more than 10 minutes in the background state. There are only three options for keeping your application running more than 10 minutes in the background.
If you want to read and write your plist, do this when your application comes to the foreground state. For this you can read and write your plist in the application became active delegate method.
try this one..
- (void)readPlist
{
NSString *filePath = #"/System/Library/CoreServices/SystemVersion.plist";
NSMutableDictionary* plistDict = [[NSMutableDictionary alloc] initWithContentsOfFile:filePath];
NSString *value;
value = [plistDict objectForKey:#"ProductVersion"];
/* You could now call the string "value" from somewhere to return the value of the string in the .plist specified, for the specified key. */
}
- (void)writeToPlist
{
NSString *filePath = #"/System/Library/CoreServices/SystemVersion.plist";
NSMutableDictionary* plistDict = [[NSMutableDictionary alloc] initWithContentsOfFile:filePath];
[plistDict setValue:#"1.1.1" forKey:#"ProductVersion"];
[plistDict writeToFile:filePath atomically: YES];
/* This would change the firmware version in the plist to 1.1.1 by initing the NSDictionary with the plist, then changing the value of the string in the key "ProductVersion" to what you specified */
}
Hope this helps you!
Related
According to this scenario.
Used to test it using sample message - text. And it works fine.
I should implement that by using buttons (callbacks).
The real problem is :
Sample text :
context.Activity.Id
"mid.$cAAOmNGtaSJ9i1_f223cprKylFOpb"
on button click (callback) :
context.Activity.Id
"9Yw5TAcq1qr"
This is the code i used to post human support button :
msg.AttachmentLayout = AttachmentLayoutTypes.Carousel;
msg.Attachments = new List<Attachment>();
ThumbnailCard thumbnailCard2 = new ThumbnailCard()
{
Buttons = new List<CardAction>
{
new CardAction ()
{
Value = "Method_Support",
Type = "postBack",
Title = "Human Support"
},
},
};
msg.Attachments.Add(thumbnailCard2.ToAttachment());
await context.PostAsync(msg);
It returns activity.Id : 9Yw5TAcq1qr - as i already mentioned. I can't use that id to query Facebook graph api.
What's the best way to handle scenario like this ?
Is it possible to render all incoming messages as native Facebook (sample-text) messages ?
Is it possible to make call to graph api using callback's activity.id ?
Following my previous answer about how to link the Activity from botFramework to the messages in Conversation in Facebook's Graph API, I had a look to your problem.
Analysis
From my point of view, there is a strange thing in this Activity.Id value because on Facebook's side, all messages have the same id format, even for callbacks.
Here is a capture of 2 messages (1st one is the latest one) from Facebook Graph API:
{
"data": [{
"messages": {
"data": [
{
"id": "m_mid.$cAAC3Jml0RcBi2JK3Clcp01uu8FFe",
"message": "Human support"
},
{
"id": "m_mid.$cAAC3Jml0RcBi2I5bXlcp0kScM7af",
"message": ""
}
]
},
"id": "t_mid.$..."
}]
}
Message with empty text is a ThumbnailCard with a CardAction inside (type = postback, Value = Method_HumanSupport)
Human support is what is sent on the click on the CardAction
What is surprising is that on the bot side, for those 2 messages we have the following values for Activity.Id:
For "id": "m_mid.$cAAC3Jml0RcBi2I5bXlcp0kScM7af" (my Thumbnail) => mid.$cAAC3Jml0RcBi2I5bXlcp0kScM7af, so it's matching
For "id": "m_mid.$cAAC3Jml0RcBi2JK3Clcp01uu8FFe" (the callback) => DWhE2C0VO79, no match at all
For information my ThumbnailCard is made like the OP said:
var msg = context.MakeMessage();
msg.AttachmentLayout = AttachmentLayoutTypes.Carousel;
msg.Attachments = new List<Attachment>();
msg.Text = "updates & support";
ThumbnailCard thumbnailCard2 = new ThumbnailCard()
{
Buttons = new List<CardAction>
{
new CardAction ()
{
Value = "Method_HumanSupport",
Type = "postBack",
Title = "Human support"
}
}
};
I will add a question on Bot Framework GitHub Project.
Edit: issue logged: https://github.com/Microsoft/BotBuilder/issues/2950
Workaround
There are several workaround that will depend on your global use cases: you could try to log the Activity.Id of a "normal" message in the discussion and use this value later when your callback is clicked, or you can also try to change your flow to avoid making this kind of link between Bot Framework and Facebook Graph API.
I am new to iOS development. I am working on an ePUB reader app for iPad.
The server sends me file with .acsm extension. Its an XML formatted file. Now I need to parse this acsm file and download the book.
The server side developer says that its working and he's able to download the ebook using Adobe Digital Editions.
What should I do to download the actual book and display it?
These are the contents of acsm file:
<fulfillmentToken fulfillmentType="buy" auth="user" xmlns="http://ns.adobe.com/adept">
<distributor>urn:uuid:861ac232-6f99-4be5-8b78-28d3aa1a1200</distributor>
<operatorURL>http://litstage.cloudapp.net:8080/fulfillment/</operatorURL>
<transaction>ACS4-6490845051477798803551940</transaction>
<expiration>2012-12-05T10:57:33+00:00</expiration>
<resourceItemInfo>
<resource>urn:uuid:45c004e9-ff9f-4117-94b9-c6776176fa62</resource>
<resourceItem>0</resourceItem>
<metadata>
<dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">The Divine Comedy</dc:title>
<dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">Dante, Alighieri</dc:creator>
<dc:publisher xmlns:dc="http://purl.org/dc/elements/1.1/">FeedBooks (www.feedbooks.com)</dc:publisher>
<dc:identifier xmlns:dc="http://purl.org/dc/elements/1.1/">urn:uuid:7d0300ba-2381-11dd-8c0f-001cc049a027</dc:identifier>
<dc:format xmlns:dc="http://purl.org/dc/elements/1.1/">application/epub+zip</dc:format>
<dc:language xmlns:dc="http://purl.org/dc/elements/1.1/">en</dc:language>
<thumbnailURL>http://litstage.cloudapp.net:8080/media/45c004e9-ff9f-4117-94b9-c6776176fa62.jpg</thumbnailURL>
</metadata>
<licenseToken>
<resource>urn:uuid:45c004e9-ff9f-4117-94b9-c6776176fa62</resource>
<permissions>
<display/>
<excerpt/>
<print/>
<play/>
</permissions>
</licenseToken>
</resourceItemInfo>
<hmac>gGIGmkDLFpWda2dWchW3E46O9oA=</hmac>
</fulfillmentToken>
I have the following code n i have 4 records in data base but loop is running 2 times n getting only first row two times whats a problem in my code?
- (void) getAllRowsFromTableName:(NSString *)tableName{
NSString *qsql = [NSString stringWithFormat:#"SELECT * FROM '%#'",tableName];
NSLog(#"query is :%#",qsql);
sqlite3_stmt *statement;
if (sqlite3_prepare_v2(db,[qsql UTF8String] , -1, &statement,nil) == SQLITE_OK) {
while (sqlite3_step(statement) == SQLITE_ROW) {
NSLog(#"loop");
int catId = sqlite3_column_int(statement, 1);
NSLog(#"***CatId is :%d",catId);
sqlite3_finalize(statement);
}
sqlite3_finalize(statement);
}
Wow! Another that use sqllite3 natively!! :)
I would suggest you an external lib (2 files) named FMDB, that is a wrapper to sqllite3.
https://github.com/ccgus/fmdb
Easy to use. Hope this helps.
Just to complete and close this question I am putting my comment in answer.
Try with commenting the sqlite3_finalize(statement); inside the while loop.
Explaination:
SQLite.org says
The sqlite3_finalize() function is called to delete a prepared
statement.
Also,
The application must finalize every prepared statement in order to
avoid resource leaks. It is a grievous error for the application to
try to use a prepared statement after it has been finalized. Any use
of a prepared statement after it has been finalized can result in
undefined and undesirable behavior such as segfaults and heap
corruption.
Thanks,
i want the solution of below question, i dont know how to store sinup information in Plist, can any one knows please help.
Thanks in advance
Use Dummy data but the dummy data must not be in the code ,it should either be in an external file (plist/xml) or in a separate constant file.This improves the code management.
All screens must comply to Portrait and Landscape View Mode
1. The App will begin with the Login Screen, The screen should be having same functionality as any website.
a. Login
b. Sign Up
c. Maximum Tries (3) then lock the app
d. Requires Answer to secret question to unlock which will be accepted in sign up
If you are looking for storing small data like user credentials look for NSUserDefault.
For automatic login, if the user has logged in previously look this.
You can create a new .plist file to store the information.
Add New File in your project, of type "Property list". Its under the "Resource tab", on "Mac OS X" in the left pane of your xcode.
Once created, Now add new items in to it. The "Key" will be used the retrieve the value through the coding.
To retrieve the values in the coding, from .plist file, you can use this code:
NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
NSDictionary* defaultSettings = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#"YOUR_PLIST_FILE_NAME.plist" ofType:nil]];
[defaults registerDefaults:defaultSettings];
NSString *sName = [defaultSettings objectForKey:#"Name"]; //the Name is the Key in .plist file, so its corresponding value will be fetched and store in sName variable
NSString *defaultDomain = [defaultSettings objectForKey:#"domain"];
I hope it helps :)
I am not able to see the Blue current location dot when I use custom annotations
- (MKAnnotationView *) mapView:(MKMapView *) mapView viewForAnnotation:(id<MKAnnotation> ) annotation {
MKAnnotationView *customAnnotationView=[[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:nil] autorelease];
UIImage *pinImage = [UIImage imageNamed:#"ann.png"];
[customAnnotationView setImage:pinImage];
customAnnotationView.canShowCallout = YES;
//UIImageView *leftIconView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"ann.png"]];
//customAnnotationView.leftCalloutAccessoryView = leftIconView;
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:#selector(showDetails:) forControlEvents:UIControlEventTouchUpInside];
customAnnotationView.rightCalloutAccessoryView = rightButton;
return customAnnotationView;
}
if (annotation == map.userLocation) {
return nil;
}
Add this.:d
I got the answer now. Just need to add the following lines to the above code at the end just before return customAnnotationView;
if (annotation ==
mapView.userLocation) {
NSLog(#"nil"); return nil; }
thanks :)
The visibility of the current user location "blue dot" is unrelated to custom annotations. To make the user's current location show, you need to set the showsUserLocation property of your MKMapView to YES. For example:
yourMapView.showsUserLocation = YES;
or:
[yourMapView showsUserLocation] = YES;
Understand that there is a quirk in the way MapKit displays the current user location: in the simulator the UserLocation will always be Apple's headquarters in Cupertino, CA, USA. It will work fine on the device, however.
Edited to add:
As Terente points out, you do have to be careful not to "eat" the user's location annotation, and so must test to see if the annotation you're processing is the user's location. I wrap the logic with:
if ([annotation isKindOfClass:[MapLocation class]]) {
}
Where MapLocation is my annotation class.