nsdictionary

NSDictionary With Integer Values

牧云@^-^@ 提交于 2019-12-03 22:31:18
I'm working on a game with monsters. Each one has a list of stats that are all going to be ints. I can set up each stat as it's own variable but I'd prefer to keep them in an NSDictionary since they are all related. I'm running into a problem when I'm trying to change the value's of each stat. What I Have: -(id) init { self = [super init]; if(self) { stats = [NSDictionary dictionaryWithObjectsAndKeys: @"Attack", 0, @"Defense", 0, @"Special Attack", 0, @"Special Defense", 0, @"HP", 0, nil]; } return self; } What I want to do -(void) levelUp { self.level++; [self.stats objectForKey:@"Attack"] +=

What is difference between NSDictionary vs Dictionary in Swift?

感情迁移 提交于 2019-12-03 22:17:42
I'm learning Swift, and I can see Dictionary in it. But there are lots of examples that are using NSDictionary with Swift. What's the difference between these two? I want to use an array with index in Swift like an array in PHP. Which one is better to use? Dictionary is a native Swift struct. NSDictionary is a Cocoa class. They are bridged to one another (within the usual limits), as the docs explain very clearly and fully. It's exactly parallel to Array and NSArray. In practice and with regard to Swift's strong type concept the significant difference is NSDictionary is generally type

Filter array of dictionaries by NSString

坚强是说给别人听的谎言 提交于 2019-12-03 17:27:44
while implementing search functionality I need to filter array of dictionaries. I am using auto complete textfield method for search bar and am storing it into string. I can able to parse the array,But facing with below json [{"CertProfID":"4","Name":"Dodge","Location":"loc4","City":"city4","State":"state4","Zip":"zip5","Website":"http:\/\/cnn.com","Phone":"phone4","Email":"email4"}, {"CertProfID":"5","Name":"cat","Location":"loc5","City":"city5","State":"State5","Zip":"zip5","Website":"web5","Phone":"phone5","Email":"email5"}] Here I need to filter the dictionaries to make it finish I tried

CoreData数据库迁移升级

|▌冷眼眸甩不掉的悲伤 提交于 2019-12-03 16:36:03
如果IOS App 使用到CoreData,并且在上一个版本上有数据库更新(新增表、字段等操作),那在覆盖安装程序时就要进行CoreData数据库的迁移,具体操作如下: 1.选中你的mydata.xcdatamodeld文件,选择菜单editor->Add Model Version 比如取名:mydata2.xcdatamodel 2.设置当前版本 选择上级mydata.xcdatamodeld ,在inspector中的Versioned Core Data Model选择Current模版为mydata2 3.修改新数据模型mydata2,在新的文件上添加字段及表 4.删除原来的类文件,重新生成下类。 在appdelegate中 [html] view plain copy NSDictionary * optionsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; if (!

How does NSDictionary handle NIL objects?

倖福魔咒の 提交于 2019-12-03 16:32:46
Consider the code below. In essence, we get 2 strings, then we add these values to the NSDictionary. However, i hit a weird bug. When fbAccessTokenKey is 0x0 (or nil), then twitterToken would not be added as well. NSString *fbAccessTokenKey=[[UserStockInfo sharedUserStockInfo] getFBAccessTokenKey]; NSString *twitterToken=[[UserStockInfo sharedUserStockInfo] getTwitterAccessTokenKey]; NSDictionary *params= [[NSDictionary alloc] initWithObjectsAndKeys: fbAccessTokenKey, @"fb_access_token", twitterToken, @"twitter_access_token", nil ]; Why is this happening, and what is a good way of resolving

Grab all values in NSDictionary inside an NSArray

一世执手 提交于 2019-12-03 16:15:56
I have an NSArray full of NSDictionary objects, and each NSDictionary has a unique ID inside. I want to do lookups of particular dictionaries based on the ID, and get all the information for that dictionary in my own dictionary. myArray contains: [index 0] myDictionary object name = apple, weight = 1 pound, number = 294, [index 1] myDictionary object name = pear, weight = .5 pound, number = 149, [index 3] myDictionary object (etc...) I want to get the name and weight for the second dictionary object (I won't know the index of the object... if there were only two dicts, I could just make a

Example of [NSDictionary getObjects:andKeys:]

江枫思渺然 提交于 2019-12-03 14:14:14
I couldn't find a working example of the method [NSDictionary getObjects:andKeys:] . The only example I could find, doesn't compile. I provided the errors/warnings here in case someone is searching for them. The reason I was confused is because most methods on NSDictionary return an NSArray . However, in the documentation it states that the out variables of this method are returned as C arrays. Here are the error messages/warnings you might get if you follow the linked example: NSDictionary *myDictionary = ...; id objects[]; // Error: Array size missing in 'objects' id keys[]; // Error: Array

NSDictionary writeToFile

蹲街弑〆低调 提交于 2019-12-03 13:41:25
Is there a size limit to saving dictionaries? I am attempting to write a rather large dictionary with around 100 keys with nested dictionaries using writeToFile: but it never writes and is always false. Is this a limitation or am I doing something incorrect, The code i use is the following. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); NSString *documentsDir = [paths objectAtIndex:0]; NSString *fullPath = [documentsDir stringByAppendingPathComponent:@"test.plist"]; [myDict writeToFile: fullPath atomically:YES]; There is no size limit (save

<extracting data from value failed> in NSDictionary

拥有回忆 提交于 2019-12-03 12:22:15
I am stuck at a point when I convert data from web services to NSDictionary. But while accessing on console in debug mode it returns , while when i bind the values of dictionary with view it works perfectly. Below is the code:- NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&e]; and at console i am using po [dictName valueForKey:@"Status"] as well as po [dictName objectForKey:@"Status"] . Followed few steps but does not work for me 1. setting Optimization level to none already in this mode. 2.Edit scheme to debug mode already

Create a dictionary property list programmatically

随声附和 提交于 2019-12-03 12:21:40
问题 I want to programatically create a dictionary which feeds data to my UITableView but I'm having a hard time with it. I want to create a dictionary that resembles this property list (image) give or take a couple of items. I've looked at "Property List Programming Guide: Creating Property Lists Programmatically" and I came up with a small sample of my own: //keys NSArray *Childs = [NSArray arrayWithObjects:@"testerbet", nil]; NSArray *Children = [NSArray arrayWithObjects:@"Children", nil];