nsmutablearray

问题 Sorry to perhaps ask stupid questions, but I'm still having issues with Objective-C syntax. So, I've got this SOAP response from my sudzc.com generated code. It should contain a SQL SELECT result with veh_id and version as columns. What I get as a response object is a NSMutableArray, NSMutableArray* soapArray = (NSMutableArray*)value; so I walk through it: unsigned count = [soapArray count]; while (count--) { id myobj = [soapArray objectAtIndex:count]; NSLog(@"myobj: %@", myobj); } What I get

问题 I have an app that tracks a user as they drive along. It uses CLLocationManager and each time the didUpdateToLocation is called I save the CLLocation point. A trip of around 25 miles yields somewhere in the neighborhood of 1200 points. As of now I save this array of points to the user defaults for testing. Should I look at CoreData to properly save this information? Or possible just write everything out to a file? My concern is that can NSUserDefaults "max out"? I could potentially have

问题 I have an array, NSMutableArray *stringArray that looks like this stringArray = [0]String1 [1]String2 [2]String3 [3]String4 [4]String5 [5]String6 How would I go about splitting this array into two arrays based on even/odd indexes? Example: NSMutableArray *oddArray = ([1], [3], [5]); NSMutableArray *evenArray = ([0], [2], [4]); Thanks in advance! 回答1: There are following ways you can achieve that:- The first and second one solution are already mentioned by the above two. Below are the

问题 I'm relatively new to iOS programming, so bear with me here. The requirement I'm working with is as follows: Screen 1: User is shown a UITableView loaded with data, specifically City and State. The user taps on a selection and is taken to Screen 2. Screen 2: The user is shown a "detailed" view of the item they selected for editing. The City string ( selectedCity ) is placed in a Text Box for editing An NSArray of States is loaded in a UITableView. The state for the selected City should be

问题 I'm trying to store an array int[9][9] with a NSMutableArray of NSMutableArray where I store my 81 integers from the array : - (void)awakeFromNib { // initialization matrix for (int i = 0; i < 9; i++) { for (int j = 0; j < 9; j++) { matrix[i][j] = 0; } } // Creating NSMutableArray instance TGrid = [NSMutableArray arrayWithCapacity:10]; [self saveGrid]; } - (void)saveGrid { NSNumber *aInt; NSMutableArray *Grid = [NSMutableArray arrayWithCapacity:81]; for (int i = 0; i < 9; i++) { for (int j =

问题 EDIT: i replaced arc4random() to arc4random_uniform() for fix I'm using test flight to monitor crashes. been fixing bugs, however i encounter this bug, i'm not sure why the index is so big. -[__NSArrayM objectAtIndex:]: index 4294967295 beyond bounds for empty array it is likely that this is where the bug is for (NSUInteger i = 0; i < count; ++i) { // Select a random element between i and end of array to swap with. int nElements = count - i; int n = (arc4random() % nElements) + i; [randomName

问题 I am sending two array and multiple value throw json but when i send this i am getting success code 200 and its response showing access denied pls any one give me right way to solve it ** -(void)SaveColumnConnection { NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURLURLWithString:@"http://xxxyyyzzzz.php"]]; NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:oneRowColumn,@"oneRowCols",memberTid,@"table_title_id",totalRowStr,@"totRow",rowandColumn,@

问题 PersonsArray: NSMutableArray = ( "<null>", "<null>", "<null>", "<MyProject.Person: 0x7ffc5257d850> (entity: Person; id: 0xd000000000040000 <x-coredata://8DD0B78C-C624-4808-9231-1CB419EF8B50/Person/p1> ; data: {\n image = nil;\n name = dustin;\n})", "<null>", "<null>", "<null>", "<null>", "<null>") if the user deletes CoreData Entry (entity: Person; name = dustin) PersonsArray: NSMutableArray = ( "<null>", "<null>", "<null>", "<MyProject.Person: 0x7ffc5257d850> (entity: Person; id:

问题 I Have an array which I have already set the capacity to 5. What I want to do is, when I add an object and the capacity exceeds 5 then it moves the whole array structure of objects by one. For example 1,2,3,4,5 (array). Then when 6 comes to be added It must replace 5 and delete one to result in 2,3,4,5,6 and so on.. So in other words it has to save only last 5 objects. BUT as in the actual coding it will save objects with coordinates in an array with capacity of 100+ so it has to be quick and

问题 Can't find out why my code doesn't work. Please help someone. I created my own class, implemented NSCoding protocol. Do not know what i miss or wrong. Here is saving code NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *fileName = [documentsDirectory stringByAppendingPathComponent:@"Currency.plist"]; Item * item = [[Item alloc] init]; item.x = 3; item.y = 5; item.type = (TType)