Starts os activity indicator.
Please be warned that this informs os ui system to start. For actual animation to take effect you usually need to wait till the end of this frame. So if you want activity indicator to be animated during synced operation, please use coroutines.
IEnumerator Load()
{
#if UNITY_IPHONE
Handheld.SetActivityIndicatorStyle(iOSActivityIndicatorStyle.Gray);
#elif UNITY_ANDROID
Handheld.SetActivityIndicatorStyle(AndroidActivityIndicatorStyle.Small);
#endif
Handheld.StartActivityIndicator();
yield return new WaitForSeconds(0);
Application.LoadLevel(1);
}
void OnGUI()
{
if( GUI.Button(new Rect(10, 10, 200, 200), "Load!") )
StartCoroutine(Load());
}