A UnityEvent that is invoked when when a user has clicked one of the options in the dropdown list.
Use this to detect when a user selects one or more options in the Dropdown. Add a listener to perform an action when this UnityEvent detects a selection by the user. See the delegates tutorial for more information on delegates.
//Create a new Dropdown GameObject by going to the Hierarchy and clicking Create>UI>Dropdown. Attach this script to the Dropdown GameObject. //Set your own Text in the Inspector window
using UnityEngine; using UnityEngine.UI;
public class Example : MonoBehaviour { Dropdown m_Dropdown; public Text m_Text;
void Start() { //Fetch the Dropdown GameObject m_Dropdown = GetComponent<Dropdown>(); //Add listener for when the value of the Dropdown changes, to take action m_Dropdown.onValueChanged.AddListener(delegate { DropdownValueChanged(m_Dropdown); });
//Initialise the Text to say the first value of the Dropdown m_Text.text = "First Value : " + m_Dropdown.value; }
//Ouput the new value of the Dropdown into Text void DropdownValueChanged(Dropdown change) { m_Text.text = "New Value : " + change.value; } }
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