Objective-C Question
iOS - Storing multiple values in one variable
I am creating 5 integer variables to store 5 different values in Objective C. For ex: intA, intB etc
Below is just sample code:
For example:
for (Desframe *obj in [myval allValues])
{
if (obj.A>10.0) {
myLabel.text = @"A";
intA = intA++;
}
else if (obj.B>10.0) {
myLabel1.text = @"B";
intB = intB++;
}
else if (obj.C>10.0) {
myLabe2.text = @"C";
intC = intC++;
}
else if (obj.D>10.0) {
myLabe3.text = @"D";
intD = intD++;
}
else if (obj.E>10.0) {
myLabe4.text = @"E";
intE = intE++;
}
}
In future, I may need to add 2 more variables.
I would like to know how to avoid creating 5 different integer variables but have 5 different values stored in one variable. Should I use array?
(or) how to handle this code professionally?
But I want this variable to be accessed globally in the same class (.m) file.
Kindly share your suggestion and guidance.
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Answer Source
Yes, you can use an NSMutableArray for this. However, Objective-C NSArrays are a little strange since they can only contain objects. You'll have to "box" the entries as NSNumber objects:
NSMutableArray *numbers = @[@(1), @(2), @(3), @(4), @(5)];
And then you can fetch an item from the array:
NSNumber *aNumber = numbers[0];
But NSNumber Objects are immutable.
You might want to use a C-style array:
UInt64 numbers[] = [1, 2, 3, 4, 5];
Then you could say
numbers[0]++;
But with a statically allocated C-style array you can't add elements to the array at runtime.
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