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PODesign pattern advice: Using an array of custom objects as a singleton
 

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    <p>After a lot of studying, I am starting to code my first app. </p> <p>In my code I have a class called "Measurement". I want to implement an array of Measurements. This array of Measurements needs to be accessible across multiple view controllers, so I have created a custom class called "MeasurementsArray" for the array, and made it into a singleton.</p> <p>I have done this, and the code works as expected. But now that I have it working, I want to make sure that I have easy to understand code, and that I am following conventional objective-c design patterns.</p> <p>If it weren't for fact that I need the array of Measurements to be a singleton, it would seem that this array belongs inside the "Measurement" class as a class method. But my understanding is that there can be only one instance of a class when it is a singleton.</p> <p>But somehow, having a separate class named "MeasurmentsArray" seems a little hacky to me. </p> <p>My question:</p> <p>Am I approaching this the right way, or am I missing something?</p> <p>If I do need the split off the array of Measurements to a separate class in order to have it be a singleton, does "MeasurementsArray" seem like an appropriate class name? If not, please provide a naming convention you would use for this type of situation. </p> <p><strong>Edit: After some inital answers, some clarification regarding the function of the app might help.</strong></p> <p>It is a fitness application that records, saves and tracks body fat percentage and body weight. Every time the user records his body fat and weight, it becomes an instance of the class "Measurement". The array of Measurements is needed in order to track changes in weight and body fat over time. A singleton is needed because multiple view controllers need access to the array.</p>
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