Assign a view ID programmatically in Android

Question

I'm trying to create a RelativeLayout with several children programmatically. To make the rules like RelativeLayout.RIGHT_OF work, the child views must have proper IDs.

However, when I try to assign an ID, Android Studio flags it as an error:

view.setId(123);

ERROR: Expected resource of type id

score 11 · Accepted Answer · answered Jul 10 '14 at 16:41

11

Found it:

view.setId(View.generateViewId());

answered Jul 10 '14 at 16:41

Jonas Sourlier

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Where do you set "123" as id? – utarid Jul 12 '14 at 09:48
I don't need `123`, I just need a new ID that doesn't conflict with an existing one. – Jonas Sourlier Jul 13 '14 at 10:23
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generateViewId() requires API level 17. – arlomedia Jul 24 '14 at 22:42
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so how do you use that Id later then? – Artemio Ramirez Nov 12 '14 at 23:36
`view.setId(..)` sets the view's Id to the value you got by invoking `View.generateViewId()`. That's it, you used it to assign it to your view. – Jonas Sourlier Nov 13 '14 at 19:45
@ArtemioRamirez use `view.getId()` – Hasan A Yousef Feb 04 '17 at 09:36
private int viewsCount; mEditTextDynamicTime.setTag(viewsCount); mEditTextDynamicTime.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { final int position = (Integer) v.getTag(); Log.d("position====>", String.valueOf(position)); } }); viewsCount++; – Ashwin H Apr 14 '17 at 11:59

score 4 · Answer 2 · edited May 23 '17 at 12:24

4

You have two options:

This is not a compiler error. It is just editor validation error as this is not a common way to deal with Ids. So compile and run with no problems
Use pre-defined list of Ids with type "id" as this accepted answer https://stackoverflow.com/a/8937477/1657333 so the editor will be happy.

edited May 23 '17 at 12:24

Community

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answered Jul 13 '14 at 09:20

Eslam Sameh Ahmed

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Tapa Save · Answer 3 · 2015-04-16T20:31:47.410

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In Android Studio click on lightbulb on line with this 'error'. And select 'Disable inspection' in first submenu.

edited Apr 16 '15 at 20:31

answered Apr 15 '15 at 19:26

Tapa Save

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score -1 · Answer 4 · answered Mar 20 '15 at 20:46

As others have said, you shouldn't be using Integers directly in this case. There are some very rare cases where you might need to do this or in general suppress validation warnings. If so then you need to look into Lint. In Android Studio you can click on the red light bulb at the left side of the line of code. This will show a context menu with a list of methods of suppression.

Assign a view ID programmatically in Android

4 Answers4

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