Draw default property types in custom PropertyDrawer

Questions & Answers
1

If I made a custom attribute that I wish would be applied to all properties, is there a way I can make it draw the respective EditorGUI field?

Right now, I would have to go through each property like so;

if (property.propertyType == SerializedPropertyType.Float)
            EditorGUI.Slider (position, property, range.min, range.max, label);
        else if (property.propertyType == SerializedPropertyType.Integer)
            EditorGUI.IntSlider (position, property, range.min, range.max, label);
        else
            EditorGUI.LabelField (position, label.text, "Use Range with float or int.");

That would be pretty inconvenient to have to write all that. Any way around this?

3

This is an old thread, but here is the solution.

    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        EditorGUI.PropertyField(position, property, label, true);
    }

    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
    {
        return EditorGUI.GetPropertyHeight(property);
    }

If you want to expand it’s functionality with eg. a button:

    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        EditorGUI.PropertyField(position, property, label, true);
        if (property.isExpanded)
        {
            if (GUI.Button(new Rect(position.xMin + 30f, position.yMax - 20f, position.width - 30f, 20f), "button"))
            {
                // do things
            }
        }
    }

    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
    {
        if (property.isExpanded)
            return EditorGUI.GetPropertyHeight(property) + 20f;
        return EditorGUI.GetPropertyHeight(property);
    }
2

foreach (SerializedProperty a in property)
{
position.y += 20;
EditorGUI.PropertyField(position, a, new GUIContent(a.name));
}