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iOS

Posted by José Manuel Martínez López
José Manuel Martínez López
18,133 Points

How can i get information from a tableView and do math with it?

First i tried to get the information from the attribute of my entity and i did but i get an array i can't work with it. So i remembered i had the information in the tableView. This is my code:

var error : NSError?
let appDel: AppDelegate=UIApplication.sharedApplication().delegate as AppDelegate
let context: NSManagedObjectContext=appDel.managedObjectContext!

var request=NSFetchRequest(entityName: "Ingresos")
request.returnsObjectsAsFaults=false

myData=context.executeFetchRequest(request, error: &error)!

//var sData:AnyObject
var sData:AnyObject
var c1:String
var c2:Double
var total:Double

for i in myData{            
    sData=i.valueForKey("dinero")!
    c1=sData as String
    c2=(c1 as NSString).doubleValue
}

1 Answer

José Manuel Martínez López
José Manuel Martínez López
18,133 Points

Well i didn´t find how to get the information from my tableView but i did found how to get the information from my core data and then work with it:

var data:Array<AnyObject>=[] var dConv:Array<Double>=[] var c1:String var c2:Double var sData:AnyObject?

for i in array{

        data.append(i.valueForKey("dinero")!)
    }

    for i in data{

        sData=i
        c1=sData as String
        c2=(c1 as NSString).doubleValue
        dConv.append(c2)

    }

    for i in dConv{

        sum2=i+sum2
    }