This code doesn't works well when I extend it to android

look like the script work just inside unity, but not when is on the iphone.

No, you need it in a script.

Below is an example script that you could use - simply attach it to your ARCamera.

This will also display the current FPS, though you will need to experiment a little.

Please also try the Unity forums at the Unity web site to get up to speed with Unity a little more.

N

using UnityEngine;
using System.Collections;

public class FPSScript : MonoBehaviour {
public float updateInterval = 0.5F;
private float lastInterval;
private int frames = 0;
private float fps;
void Start() {
lastInterval = Time.realtimeSinceStartup;
frames = 0;

Application.targetFrameRate = 60;

}
void OnGUI() {
GUILayout.Label("" + fps.ToString("f2"));
}
void Update() {
++frames;
float timeNow = Time.realtimeSinceStartup;
if (timeNow > lastInterval + updateInterval) {
fps = frames / (timeNow - lastInterval);
frames = 0;
lastInterval = timeNow;
}
}
}

i write bellown the lines?

// kFPS define for removed

// you can use Application.targetFrameRate (30 fps by default)

Application.targetFrameRate  60

kFPS 60

like this?

Normally in AppController.mm

However its use is now deprecated

// kFPS define for removed

// you can use Application.targetFrameRate (30 fps by default)

..and it is recommended to use Application.targetFrameRate and just set it to what you want it.

You ought to go to the Unity forums on the Unity web site and do a searchfor this  so you can find help more quickly.

N