UIButton With Unique Identifier

Question

Searched questions here This but not completely solving my problem.

Problem here is I have around 100 buttons in UIScrollView, and based on response from server I have to highlight buttons (i.e. Server sends me "Button_Unique_Id": "Button_ABC_1"). Now here the problem is how do I create a UIButton with unique identifier "Button_ABC_1", in such a way that when I get response from server, I can identify my button with the Button_Unique_Id value and do alterations just to that button.

button.tag = index

This approach fails as I can't identify button with value I got "Button_ABC_1"

I would appreciate response best practiced.

Could you Please show your code ? – Dixit Akabari Sep 20 '17 at 13:00 — Dixit Akabari, Sep 20 '17 at 13:00

score 2 · Accepted Answer · answered Sep 20 '17 at 13:29

2

Keep references to your buttons in a Dictionary ([String : UIButton]) and use those strings as keys, then you can get the appropriate button by simply asking for it:

let buttonOfInterest = buttons["Button_ABC_1"]

answered Sep 20 '17 at 13:29

Milan Nosáľ

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Fahri Azimov · Answer 2 · 2017-09-20T13:14:14.210

1

Just create subclass of UIButton and add id instance variable whatever type you want. Good Luck!

EDIT

class MyButton: UIButton {
    var id : String?
}

Usage:

let btn = MyButton(type: .custom)
btn.id = "MY_BUTTON_ID"

Something like that.

edited Sep 20 '17 at 13:14

answered Sep 20 '17 at 13:04

Fahri Azimov

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can you give an example or some link?, do i have to create Sub Class for each UIButton? – niravdesai21 Sep 20 '17 at 13:11
You don't have to create subclass for each button. After creation, just assign your unique id to the button, and keep a reference in an array or dictionary for later identification of the button. – Fahri Azimov Sep 20 '17 at 13:16
Ok I am trying this solution. Will get back in a while. – niravdesai21 Sep 20 '17 at 13:17
I think this solution will eventually end Up adding to Dictionary like ([String : UIButton]) – niravdesai21 Sep 20 '17 at 14:27

score 1 · Answer 3 · edited Sep 22 '17 at 00:24

1

You can use Button.tag = integerValue for storing integer value with button. You can manage an array of those data and bind that array with button tag.

edited Sep 22 '17 at 00:24

Wilson Vargas

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answered Sep 21 '17 at 16:56

Sharad Paghadal

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Nagaraj · Answer 4 · 2019-11-02T02:29:15.993

enum ButtonIdentifier: String {
//you could name the enum as ButtonMapper
//let the case be same as server response string
case button_abc_0
case button_abc_1
case button_abc_2

var id: int {
//fetch the id from the server response string & return - here fetch the integer from the rawValue.
//Or else you have to use the switch for returning the id which is not feasible when you have 100s of data - better to extract from the response string
}

guard let buttonIdentifier = ButtonIdentifier (rawValue: serverResponceString) else { return }

Using forEach loop you can tag (integer value) the buttons at once

updateButton(with tag: buttonIdentifier.id)

UIButton With Unique Identifier

4 Answers4