Questions tagged [nsmutablearray]
NSMutableArray represents a modifiable (mutable) array object for Cocoa and Cocoa Touch. It is Available in OS X v10.0 and later
nsmutablearray
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How do I sort an NSMutableArray with custom objects in it?
What I want to do seems pretty simple, but I can't find any answers on the web. I have an NSMutableArray of objects, and let's say they are 'Person' objects. I want to sort the NSMutableArray by ...
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How do I convert NSMutableArray to NSArray?
How do I convert NSMutableArray to NSArray in objective-c?
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The best way to remove duplicate values from NSMutableArray in Objective-C?
The best way to remove duplicate values (NSString) from NSMutableArray in Objective-C?
Is this the easiest and right way to do it?
uniquearray = [[NSSet setWithArray:yourarray] allObjects];
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Join an Array in Objective-C
I'm looking for a method of turning a NSMutableArray into a string. Is there anything on a par with this Ruby array method?
>> array1 = [1, 2, 3]
>> array1.join(',')
=> "1,2,3"
Cheers!...
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How to store CGRect values in NSMutableArray?
How would I store CGRect objects in a NSMutableArray, and then later retrieve them?
106
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How to return an NSMutableArray from an NSSet
I'm able to put the contents of an NSSet into an NSMutableArray like this:
NSMutableArray *array = [set allObjects];
The compiler complains though because [set allObjects] returns an NSArray not an ...
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Adding an object at a specific index of an NSMutableArray
How can an object be added at a specific index of an NSMutableArray?
How is an object added to the front of the array?
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'Invalid update: invalid number of rows in section 0
I've read all of the related posts regarding this and I am still having an error:
'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the ...
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9
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NSMutableArray addObject: -[__NSArrayI addObject:]: unrecognized selector sent to instance
I have tried to initialize my NSMutableArray 100 ways from Sunday, and NOTHING is working for me. I tried setting it equal to a newly allocated and initialized NSMutableArray, just allocating, ...
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69
votes
12
answers
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NSMutableArray - force the array to hold specific object type only
Is there a way to force NSMutableArray to hold one specific object type only?
I have classes definitions as follow:
@interface Wheel:NSObject
{
int size;
float diameter;
}
@end
@...
- 4,399
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votes
4
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Objective-C Simplest way to create comma separated string from an array of objects
So I have a nsmutablearray with a bunch of objects in it. I want to create a comma separated string of the id value of each object.
- 6,283
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How to save NSMutablearray in NSUserDefaults
I have two NSMutableArray's. They consist of images or text.
The arrays are displayed via a UITableView.
When I kill the app the data within the UITableView gets lost.
How to save array in UITableView ...
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votes
8
answers
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How do copy and mutableCopy apply to NSArray and NSMutableArray?
What is the difference between copy and mutableCopy when used on either an NSArray or an NSMutableArray?
This is my understanding; is it correct?
// ** NSArray **
NSArray *myArray_imu = [NSArray ...
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UITableView, how do I know what Section during cellForRowAtIndexPath?
I have a UITableView displaying a list of Cities.
I want to separate them by State. I can't seem to figure out how to get it to pick the right items out of my Array.
If Section 1 (Arizona) has 2 ...
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3
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Difference between NSArray and NSMutableArray
What is the difference b/w NSArray and NSMutableArray?
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NSMutableArray addObject not working
I have declared an NSMutableArray *categories in my view controller .h file, and declared a property for it.
In the parser:foundCharacters: method of the NSXMLParser delegate in my .m file, I have ...
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Is there a literal syntax for mutable collections?
I know I can create an NSArray with @[@"foo", @"bar"] or an NSDictionary with @{@0 : @"foo", @1 : @"bar"}.
Is there a literal syntax for creating an NSMutableArray or an NSMutableDictionary?
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Swapping elements in an NSMutableArray
Are there any special methods to make swapping elements in an NSMutableArray easier or more direct?
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3
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NSMutableArray add object with order
I have a NSMUtableArray which has elements, for example:
a,b,c,e
And I want to add an object d to behind c and before e.
In other words, I'd like to insert an object to a sorted array.(The object ...
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how to add nil to nsmutablearray?
NSArray *array = [[NSArray alloc] initWithObjects:@"ΕΛΤΑ",
@"ΕΛΤΑ COURIER", @"ACS", @"ACS ΕΞΩΤΕΡΙΚΟ",
@"DHL", @"INTERATTICA", @"SPEEDEX",
...
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7
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Is Objective-C's NSMutableArray thread-safe?
I've been trying to fix this crash for almost a week. The application crashes without any exception or stack-trace. The application does not crash in any way while running through instruments in ...
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votes
9
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Static NSArray of strings - how/where to initialize in a View Controller
In a Master-Detail app I'd like to display a TableView with 5 sections titled:
Your Move
Their Move
Won Games
Lost Games
Options
So I create a blank Master-Detail app in Xcode 5.0.2 and then in its ...
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2
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Add an object to the beginning of an NSMutableArray?
Is there an efficient way to add an object to start of an NSMutableArray? I am looking for a good double ended queue in objective C would work as well.
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11
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Avoiding "NSArray was mutated while being enumerated"
I have an NSMutableArray that stores mousejoints for a Box2d physics simulation. When using more than one finger to play I'll get exceptions stating
NSArray was mutated while being enumerated
I ...
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45
votes
9
answers
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NSMutableArray check if object already exists
I am not sure how to go about this. I have an NSMutableArray (addList) which holds all the items to be added to my datasource NSMutableArray.
I now want to check if the object to be added from the ...
- 3,693
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votes
8
answers
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2D arrays using NSMutableArray
I need to create a mutable two-dimensional array in Objective-C.
For example I have:
NSMutableArray *sections;
NSMutableArray *rows;
Each item in sections consists of an array rows. rows is an ...
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44
votes
2
answers
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Sorting NSMutableArray By Object's Property
So this is a rather basic question regarding the best way to sort an NSMutableArray of custom objects.
I have a an NSMutableArray of custom objects, each object with an NSString and NSDate that go ...
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7
answers
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42
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4
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How can I sort strings in NSMutableArray into alphabetical order?
I have a list of strings in an NSMutableArray, and I want to sort them into alphabetical order before displaying them in my table view.
How can I do that?
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How to wrap a Struct into NSObject
this is supposed to be trivial… I think, but I can't find a way how to wrap a Struct variable into an NSObject. Is there a method to do so? If not, how would I go about adding a struct into an ...
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How to append values to an array in Objective-C
I'm doing this:
for(int i=0;i>count;i++)
{
NSArray *temp=[[NSArray alloc]initWIthObjects]i,nil];
NSLog(@"%i",temp);
}
It returns to me 0,1,2,3....counting one by one, but I want an array ...
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How to exchange elements in swift array?
I have one simple array like:
var cellOrder = [1,2,3,4]
I want to exchange elements like suppose a second element with first element.
And result will be:
[2,1,3,4]
I know we can use ...
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Finding Intersection of NSMutableArrays
I have three NSMutableArray containing names that are added to the lists according to different criterieas.
Here are my arrays pseudocode:
NSMutableArray *array1 = [@"Jack", @"John", @"Daniel", @"...
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Total Size of NSMutableArray object
I've got an NSMutableArray that holds a bunch of objects, what I'm trying to figure out is how much memory is the array using. After looking at a couple of places I know about the size of call, and ...
sj wengi
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How do I reverse the order of objects in an NSMutableArray? [duplicate]
I'm trying to achieve something like this
NSMutableArray *myArray = [NSMutableArray arrayWithObjects:@"A",@"B",@"C", nil];
NSLog(@"Array: %@", myArray);
//logs A, B, C.
//reverse code here
NSLog(@"...
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[__NSCFNumber length]: unrecognized selector sent to instance UITableView
i'm experiencing an error
[__NSCFNumber length]: unrecognized selector sent to instance 0x15580c90
2014-02-18 15:10:49.490 CIB[1706:60b] * Terminating app due to uncaught exception '...
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UIActivityViewController - Email and Twitter sharing
I recently started working with UIActivity to share my app to the world, but I have few problems. First, I didn't find how to set the subject of my email. Is there any way? Second, when I set the body ...
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How to sort an array which contains Dictionaries?
I have an array which contains dictionaries in it; so how can I sort the array according to dictionary key values?
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5
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Disadvantage of using NSMutableArray vs NSArray?
I'm using an array to store cached objects loaded from a database in my iPhone app, and was wondering: are there any significant disadvantages to using NSMutableArray that I should know of?
edit: I ...
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How to change the value of an NSMutableArray at a particular index
[array objectAtIndex:i] doesn't work as an L value, so it can't be used to set the object at index i.
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How to add string objects to NSMutableArray
I have an NSMutableArray named randomSelection:
NSMutableArray *randomSelection;
I am then trying to add strings to this array if certain criteria are met:
[randomSelection addObject:@"string1"];
...
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Sort array of objects by their NSDate property [duplicate]
Possible Duplicate:
How to sort an NSMutableArray with custom objects in it?
How does one sort an array of objects by accessing their NSDate properties?
I know one can use [mutableArray ...
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28
votes
3
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How to sort NSMutableArray using sortedArrayUsingDescriptors?
I have a question about sorting NSMutableArray. I can use sortedArrayUsingDescriptors: method to sort an array with objects.
For example I have an NSMutableArray of places where I have an ...
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NSMutableArray initWithCapacity nuances
Does anyone have advice on how to best initialize an NSMutableArray when it comes to dictating the capacity? The documentation mentions that "...even though you specify a size when you create an ...
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7
answers
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How can I sort an NSMutableArray alphabetically?
I want to sort an NSMutableArray alphabetically.
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7
answers
55k
views
Removing item from array by property value
I'm looking for the most efficient and memory friendly way.
Let's say I have an array of Person objects. Each person has a hair color represented by an NSString. Let's then say I want to remove all ...
- 3,058
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4
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NSMutableArray - Remove duplicates
i tried doing this: Values = [[NSSet setWithArray:Values] allObjects]; and no sucess,
Thanks
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How to check if an instance of NSMutableArray is null or not
How to check an NSMutableArray is null or not ?
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How to addObject of NSMutableDictionary to NSMutableArray in a loop
I'm having difficulty to add a data structure to an array to create an array of dictionaries from a loop. I just knew that addObject in NSMutableArray only add pointer to it. I would like to know how ...
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