• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by ataxkt · Jan 21, 2015 at 11:40 AM · variablefunctionpropertydrawerattributeproperty drawer

Writing PropertyDrawers for functions.

Hi all - I'm searching for something that may or may not be possible. You can create custom property drawers for variables, like the one below.

 [Range(0,10)]
 float range = 5;

However, although Unity has the ContextMenu attribute for functions, I've never seen a custom propertydrawer for a function.

 [ContextMenu("Do whatever")]
 void Whatever () {...}

In particular, I'm looking to display a button in the inspector for any functions with a custom [Button] attribute. Is such a thing possible?

Otherwise, how else could you do about creating a button using propertydrawers (rather than writing an editor script, which is just cumbersome)?

Cheers!

Tom

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by andreshvs · Jan 18, 2017 at 08:37 PM

I'm personally looking for a better implementation than the one I have but here are my 2 cents on the topic.

As far as I know this is a kinda, I have not been able to make Unity recognize a class method as a property, these seem to be (and I may be completely wrong here) reserved for fields only.

My solution was to create a custom attribute called ButtonUtilityAttribute that is then attached to a field (I normally make them be bytes) and that uses reflection for when the button is hit to call the function.

In code this would look somewhat like this:

 [SerializeField, ButtonUtilityAttribute("UseSelected", "Use Selected")]
     private byte useSelectedButton;
 
     public void UseSelected()
     {
         Debug.Log("Doing something");
     }

Personally I would like to be able to move the attribute to the method rather than having to create a dummy variable in the class.

Anyhow hope this helps for the time being. The drawer implementation is rather straightforward, just use reflection on the object it is running for to find the method call that is specified in the attribute constructor and set the label as the second parameter from the attribute.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

26 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Component OnAwake or OnEnable with PropertyAttribute 1 Answer

iTween - calling functions on oncomplete doesn't work if the function is declared as a variable 1 Answer

How to correctly send a variable to another function? 1 Answer

Property Drawer toggles working between the UI and the item. 1 Answer

Calling non applied scripts 3 Answers

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges