nsdictionary | 易学教程

Parse XML item “Category” into an NSArray with NSDictionary

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问题 Question: The generated XML file from an .XSD template produces the output pasted below. Since category 's keys are image , my standard way of parsing the image items wont work on category . I would like to place the category name="Category #" into an array, How can I make an array from the category fields. What I need: What I want is an array of dictionaries. Each position contains a dictionary representing one category, and each dictionary contains images for that category. Array: @

Parsing Search Result with MGTwitterEngine in Objective C

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问题 I'm using Matt Gemmell's amazing MGTwitterEngine for an iPhone project, and my lack of familiarity with Obj-C and JSON parsing is making a simple job seem rather daunting. I've read this link, and while it helps me understand how the data is structured, I still can't seem to be able to parse it. If I do an NSLog of the output of getSearchResultsForQuery like so: NSLog(@"getSearchResultsForQuery: connectionIdentifier = %@", [myTwitterEngine getSearchResultsForQuery:@"#joke" sinceID:0

iOS - 适配 iOS 13 之工兵连扫雷

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iOS 12 适配WiFi 增加隐私权限 https://www.cnblogs.com/baitongtong/p/10179519.html ios13又新增定位权限别的不说，理解请看上篇文章 iOS - 适配 iOS 13 之工兵连扫雷直接上代码// 当定位授权状态改变时 - (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status { switch (status) { case kCLAuthorizationStatusDenied: // 拒绝授权 NSLog(@"授权失败：用户拒绝授权或未开启定位服务"); break; case kCLAuthorizationStatusAuthorizedWhenInUse: // 在使用期间使用定位 NSLog(@"授权成功：用户允许应用“使用期间”使用定位服务"); if (geteventID >= 0) { NSDictionary *ret = @{@"returnVal":[self currentWifiSSID]}; [self sendResultEventWithCallbackId:geteventID dataDict:ret

SBJSON parsing NSString to NSDictionary

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I'm trying to parse an NSString that contains JSON data into an NSDictionary using SBJson 3.0.4, but when I do it, I get this error: "WebKit discarded an uncaught exception in the webView:shouldInsertText:replacingDOMRange:givenAction: delegate: -[__NSCFString JSONValue]: unrecognized selector sent to instance 0x6ab7a40" As far as I know (which isn't very far), the JSON I'm getting is valid, so I don't know why this is happening. My code compiles fine too… Here it is: NSString *tempURL = [NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/geocode/json?address=%@&sensor=true"

Swift Dynamic Cast Failed on NSJSONSerialization

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问题 I have a JSON Data which looks like: [ { "Name" : "Ernst Handel", "City" : "Graz", "Country" : "Austria" }, { "Name" : "Wolski Zajazd", "City" : "Warszawa", "Country" : "Poland" } ] and I am converting it to NSDictionary using: var jsonResult: NSDictionary = NSJSONSerialization.JSONObjectWithData( data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary 回答1: I usually use this. Works for both numeric and associative types of JSON. It works for your as well. I tried.

NSSortdescriptor, finding the path to the key I wish to use for sorting

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I am using an NSSortdescriptor to sort a collection of NSArrays, I then came across a case where the particular NSArray to be sorted contains an NSDictionary who contains an NSDictionary. I would like to sort from the string paired with a key in the last dictionary. This is how I would reference the string: NSDictionary *productDict = [MyArray objectAtIndex:index]; NSString *dealerName = [[productDict objectForKey:@"dealer"] objectForKey:@"name"]; How would I use the dealerName in my NSSortdescriptor to sort the array? NSSortDescriptor * sortDesc = [[NSSortDescriptor alloc] initWithKey:/* ? */

How to compare the elements of NSArray in NSMutableDictionary?

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问题 My NSMutableDictionary contains four NSArray s with their respective keys. These NSArray s are of size 2 and contain 2D coordinates. I want to get the most common coordinate among them. For example, If a coordinate is common to three arrays, it would be my first choice. How can I find that any coordinate is common to at least two arrays? 回答1: Basically you want to find the pair of coordinates that has max occurences. So you can create an array of all coordinates and find its mode.

Filter an NSDictionary of Arrays using NSPredicate

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问题 I have a plist that I have defined as a Dictionary that contains many arrays. I would like to pull out of that dictionary all arrays that have their first "Item 0" (Default naming convention) that matches a given string. I tried something similar to Filtering an NSArray, but I am getting a regex error and the console spews out the contents of the first array in the dictionary. Also, would I need to instantiate my NSDictionary as an NSMutableDictionary since I will be performing a filter

how to edit a plist programmatically in xcode 5 iOS 7?

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how can I edit or change a value string from: in this plist I need change or Set "NO" in Enabled Value from Item 2, I see a lot examples, but not working, or are deprecated, or don't use ARC, any idea or example code? please help guys EDIT#1: I try this (not work) NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; path = [path stringByAppendingPathComponent:@"List.plist"]; NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:path]) { NSString *sourcePath = [[NSBundle mainBundle]

NSUserDefaults fail to save NSMutableDictionary

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Iam trying to save NSMutableDictionary to NSUserDefaults with this code: NSUserDefaults *def = [NSUserDefaults standardUserDefaults]; NSMutableDictionary *repositoryData = [[NSMutableDictionary alloc] init]; [repositoryData setObject:personData forKey:@"persondata"]; [def setObject:repositoryData forKey:@"kUserRepository"]; [def synchronize]; [repositoryData removeAllObjects]; [repositoryData release]; But i am getting this msg: [NSUserDefaults setObject:forKey:]: Attempt to insert non-property value '{ persondata = "<Person: 0x1ed57e70>"; }' of class '__NSDictionaryM'. Note that dictionaries