nsdictionary

问题 This question already has answers here : iphone write to file fails (2 answers) Closed 6 years ago . I am developing one application.In that i am trying to update the plist file using below code. plist_path=[[NSBundle mainBundle]pathForResource:@"Configurationfile" ofType:@"plist"]; config_dict=[[NSMutableDictionary alloc]initWithContentsOfFile:plist_path]; [config_dict setValue:textField.text forKey:@"ServerURL"]; NSLog(@"%@",config_dict); [config_dict writeToFile:plist_path atomically:YES];

问题 This question already has answers here : Create a Custom Formatted Dictionary Array from CSV File of Data (3 answers) Closed 6 years ago . I've created an iPhone app that has a dictionary array of locations (lat,long,point). I created the array by manually entering each value. myLocationArray = @[ @{ kStation : @"1", kLatitude : @( 41.656467), kLongitude : @(-81.277963) }, @{ kStation : @"2", kLatitude : @(41.657118), kLongitude : @(-81.276545) }, @{ kStation : @"3", kLatitude : @(41.658493),

问题 I am wondering what the correct way is to make a copy of an object defined in the app delegate or a singleton object. In short, I am making an app which requires a user to login. This login view is just a modal view controller on top of the 'real' app, which consists of a tabbarcontroller, plus some tableview controllers. After a successful login, there is send a data request to a remote server, and the modal view controller is dismissed, revealing the tabbar controller and table views

问题 I have an array of dictionary from firebase like bellow : "gcm.notification.data" = "{\"request\":\"update_location\",\"latitude\":\"45.48945419494574\",\"customMessage\":{\"loc-args\":[\"iPhone di Tester\"],\"loc-key\":\"LOCATION_CHECKIN\"},\"type\":\"checkin\",\"message\":\"Ggg\",\"longitude\":\"9.195329826333742\",\"child\":{\"name\":\"iPhone di Tester\",\"pid\":\"C312EDDC-E8A8-4EFC-9E65-957BE5DAC5FC\"}}"; I tried to unwrap the request, like bellow but it crash, can anyone help.

问题 To say I'm new to Objective-C would be a huge understatement. I'm primarily a Ruby/Rails developer and it completely spoiled me when it comes to OOP & programming in general. After getting tired of reading tutorials, I decided to try to use NSRULSession to hit one of my Rails apps (an Elder Scrolls Online skill planner) & display some of the JSON response on my iOS app. Delegates make no sense, I'm not sure how to break this functionality up into methods, etc, so I thought I'd keep it simple

问题 I am trying to make a dictionary like this: func someFunc() -> [String : AnyObject?] { var dic = [ "Name": someString_Variable, "Sum": someUInt64_Variable ] Problem is when I add someUInt64_Variable I get error: Cannot convert value of type UInt64 to expected dictionary value type Optional<AnyObject> What to do here, I must use UInt64 I can't convert it to String . Why am I getting this error anyway? 回答1: This used to work in an earlier version of Swift when Swift types were automatically

问题 I'm having some trouble understanding the logic behind this compare-using-selector thing. I have the following code, I'm trying extract the Keys and sorting them at the same time. But, it does not sort. The output NSArray's order never changes no matter what I do. NSMutableDictionary *dictToSort = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Joe", [NSNumber numberWithInt:2], @"mark", [NSNumber numberWithInt:1], @"mdark", [NSNumber numberWithInt:3], nil]; NSArray *dictToSortKeys =

问题 So this is based off of my question here objective c when to use NSDictionary instead of NSArray Apologies for the noob questions. I just started learning objective c and I'm really confused. - (void)viewDidLoad { [super viewDidLoad]; headers = [NSArray arrayWithObjects:@"Header Section 1 (H1)", @"Header Section 2 (H2)", nil]; events = [NSArray arrayWithObjects:@"H1 Content 1", @"H1 Content 2", nil]; myInfo = [NSArray arrayWithObjects:@"H2 Content 1", @"H2 Content 2", @"H2 Content 3", nil];

问题 i'm new to Xcode and Objective-c and i wanna make a contact list which sorted alphabetically also have images in it. Please check this for reference. This code tells me everything i need but the problem is i use name and images from MySQL instead of hardcoded like that. I have imported the data to NSDictionary and this is the result: audiences=({name="ABDUL",id="1",photo="asd.png"},{name="ABDUL",id="2",photo="qwe.png"}); What i need to do to add the name and photo (only that 2 items, without

问题 This is related to a question I asked earlier, but the original question was answered. Hope it's okay to open a new question, if not, feel free to delete it. I'm trying to build a simple iPhone application using tableviews and a tabbar. Every view is the same programmatically, except for the title and the kind of data which needs to be displayed. Except for that they all behave the same. Currently code in my AppDelegate handles the distribution of viewcontrollers to the different tabs and