Version: 2022.2
LanguageEnglish
  • C#

Application.memoryUsageChanged

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Description

Informs about significant changes in the application's memory usage.

This event occurs when there are significant changes in the application's memory usage, such as an increase to a dangerous level or a drop to a much safer level. This event is supported on iOS, Android, and Universal Windows Platform (UWP). Note, that not all platforms support all possible values, so it's not recommended to rely on receiving particular values. Only critical memory level is supported everywhere.

using System;
using UnityEngine;

public class Sample : MonoBehaviour { void Start() { Application.memoryUsageChanged += OnMemoryUsageChanged; }

void OnMemoryUsageChanged(in ApplicationMemoryUsageChange newUsage) { if (newUsage.memoryUsage == ApplicationMemoryUsage.Critical) { // release resources here Resources.UnloadUnusedAssets(); GC.Collect(); } } }

This code sample shows how to perform garbage collection if the application is critically low on memory.