How to modify "Preloaded Assets" of player settings programmatically in editor script?

Questions & Answers
1

How to modify “Preloaded Assets” of player settings programmatically in editor script?

3

PlayerSettings.SetPreloadedAssets in now in the API

2

AFAIK, there’s no editor API that allows editing of the “Preloaded assets” array. You can achieve the same via the more generic SerializedObject and SerializedProperty APIs though:

Here’s an example of how this can be done:

var playerSettings = Resources.FindObjectsOfTypeAll<PlayerSettings>();
SerializedObject so = new SerializedObject(playerSettings);

var preloadedAssets = so.FindProperty("preloadedAssets");

if (preloadedAssets != null && preloadedAssets.isArray)
{
	// Update preloadedAssets here
	preloadedAssets.arraySize = 1; // set the array size to whatever you wish
	
	// Get the array element at the given index
	var sp = preloadedAssets.GetArrayElementAtIndex(0);

	// set it to whatever object reference you wish
	sp.objectReferenceValue = AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/Textures/blabla.png");
}

so.ApplyModifiedProperties();
AssetDatabase.SaveAssets();