Unreachable code detected

Questions & Answers
1

Hi guys,

I am trying to add admob interstitial into my app, but seems like it is over my coding skills.

I get this warning “Unreachable code detected”

I have used this plugin(AdmobVNTIS) before and it worked without issues.
Could you guys please point what I can’t see? Thank you.

This is the code

using UnityEngine;
using System.Collections;

public class AdmobVNTIS_Interstitial : MonoBehaviour
{

	public string InterstitialAdUnitID = "myID";
	public string TestDeviceID = "";
	public bool ShowInterstitialOnLoad = false;
	public bool isAdLoaded = false;
	public int numberOfImpressions = 0;
	private static AndroidJavaObject jo;
	float retryTimeOut = 1.0f;
	[Range(0,100)]
	int
		extendTimeOutPercent = 0;
	int timeOutMax = 90;
	float retryTime;
	float current;
	bool isFail = false;
	float totalretryTime = 0.0f;
	// Dont destroy on load and prevent duplicate
	private static bool created = false;

	void Awake ()
	{
		if (!created) {
			DontDestroyOnLoad (this.gameObject);
			created = true;
			initializeInterstitial ();
		} else {
			Destroy (this.gameObject);
		}
		retryTime = retryTimeOut;
		current = 0.0f;
	}

	void initializeInterstitial ()
	{		
		#if UNITY_EDITOR
		Debug.Log ("AdmobInterstitial created - Admob Plugin only work on real device, not in editor");
		return;
		#endif
		jo = new AndroidJavaObject ("admob.admob", InterstitialAdUnitID, TestDeviceID, ShowInterstitialOnLoad);
	}

	/// <summary>
	/// Show the interstitial. Load if ad is not loaded, and show after load.
	/// </summary>
	public void showInterstitial ()
	{
		jo.Call ("showInterstitial");
	}

	/// <summary>
	/// Show the interstitial. Load if ad is not loaded, and NOT show after load.
	/// </summary>
	public void showInterstitialImmediately ()
	{
		jo.Call ("showInterstitialImmediately");
	}

	/// <summary>
	/// Load the interstitial. Ignore if already loaded.
	/// </summary>
	public void prepareInterstitial ()
	{
		jo.Call ("prepareInterstitial");
	}		


	public delegate void listener ();

	public event listener OnAdLoaded;

	public void onAdLoaded (string msg)
	{
		retryTime = retryTimeOut;
		totalretryTime = 0.0f;
		current = 0.0f;
		isAdLoaded = true;
		if (OnAdLoaded != null)
			OnAdLoaded ();
	}

	public event listener OnAdOpened;

	public void onAdOpened (string msg)
	{
		isAdLoaded = false;
		numberOfImpressions++;
		if (OnAdOpened != null)
			OnAdOpened ();
	}

	public event listener OnAdLeftApplication;
		
	public void onAdLeftApplication ()
	{
		if (OnAdLeftApplication != null)
			OnAdLeftApplication ();
	}

	public event listener OnAdClosed;
		
	public void onAdClosed ()
	{
		if (OnAdClosed != null)
			OnAdClosed ();
	}
		
	public event listener OnAdFailedToLoad;

	public void onAdFailedToLoad (string errorCode)
	{
		if (timeOutMax != 0 && timeOutMax < totalretryTime) {
			// do nothing
		} else {
			isFail = true;
			totalretryTime += retryTime;
			if (OnAdFailedToLoad != null)
				OnAdFailedToLoad ();
		}
	}

	void Update ()
	{
		#if UNITY_EDITOR
		return;
		#endif
		if (isFail) {
			if (current < retryTime) {
				current += Time.deltaTime;
			} else {
				isFail = false;
				current = 0.0f;
				retryTime += (float)(extendTimeOutPercent * retryTime);
				prepareInterstitial ();
			}			    
		}
	}

	public static void _showInterstitial ()
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._showInterstitial() called");
		return;
		#endif
		AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
		if (ai != null) {
			ai.showInterstitial ();
		}
	}

	public static void _showInterstitialImmediately ()
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._showInterstitialImmediately() called");
		return;
		#endif
		AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
		if (ai != null) {
			ai.showInterstitialImmediately ();
		}
	}

	public static int _numberOfImpressions ()
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._numberOfImpressions() called. Return 0.");
		return 0;
		#endif
		AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
		if (ai != null) {
			return ai.numberOfImpressions;
		}
		return -1;
	}

	public static void _setNumberOfImpressions (int n)
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._setNumberOfImpressions() called. Set " + n);
		return;
		#endif
		AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
		if (ai != null) {
			ai.numberOfImpressions = n;
		}
	}

	public static bool _isAdLoaded ()
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._isAdLoaded() called. Return false");
		return false;
		#endif
		AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
		if (ai != null) {
			return ai.isAdLoaded;
		}
		return false;
	}

	public static AdmobVNTIS_Interstitial _get ()
	{
		#if UNITY_EDITOR
		Debug.Log ("AdmobVNTIS_Interstitial._get() called. Return null");
		return null;
		#endif
		return (AdmobVNTIS_Interstitial)GameObject.Find ("AdmobVNTISInterstitialObject").GetComponent ("AdmobVNTIS_Interstitial");
	}

}
2

Look at this example:

         #if UNITY_EDITOR
     Debug.Log ("AdmobInterstitial created - Admob Plugin only work on real device, not in editor");
     return;
     #endif
     jo = new AndroidJavaObject ("admob.admob", InterstitialAdUnitID, TestDeviceID, ShowInterstitialOnLoad);

If#if UNITY_EDITOR is true the code would look like that:

 Debug.Log("AdmobInterstitial created - Admob Plugin only work on real device, not in editor");
                    return;
  jo = new AndroidJavaObject("admob.admob", InterstitialAdUnitID, TestDeviceID, ShowInterstitialOnLoad);

There is your unreachable code. Below I corrected your code. To get more info, search for c# precompiler.

public class AdmobVNTIS_Interstitial : MonoBehaviour {
    
        public string InterstitialAdUnitID = "myID";
        public string TestDeviceID = "";
        public bool ShowInterstitialOnLoad = false;
        public bool isAdLoaded = false;
        public int numberOfImpressions = 0;
        private static AndroidJavaObject jo;
        float retryTimeOut = 1.0f;
        [Range(0, 100)]
        int
            extendTimeOutPercent = 0;
        int timeOutMax = 90;
        float retryTime;
        float current;
        bool isFail = false;
        float totalretryTime = 0.0f;
        // Dont destroy on load and prevent duplicate
        private static bool created = false;
    
        void Awake()
        {
            if (!created)
            {
                DontDestroyOnLoad(this.gameObject);
                created = true;
                initializeInterstitial();
            }
            else
            {
                Destroy(this.gameObject);
            }
            retryTime = retryTimeOut;
            current = 0.0f;
        }
    
        void initializeInterstitial()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobInterstitial created - Admob Plugin only work on real device, not in editor");
            return;
    #else
            jo = new AndroidJavaObject("admob.admob", InterstitialAdUnitID, TestDeviceID, ShowInterstitialOnLoad);
    #endif
        }
    
        /// <summary>
        /// Show the interstitial. Load if ad is not loaded, and show after load.
        /// </summary>
        public void showInterstitial()
        {
            jo.Call("showInterstitial");
        }
    
        /// <summary>
        /// Show the interstitial. Load if ad is not loaded, and NOT show after load.
        /// </summary>
        public void showInterstitialImmediately()
        {
            jo.Call("showInterstitialImmediately");
        }
    
        /// <summary>
        /// Load the interstitial. Ignore if already loaded.
        /// </summary>
        public void prepareInterstitial()
        {
            jo.Call("prepareInterstitial");
        }
    
    
        public delegate void listener();
    
        public event listener OnAdLoaded;
    
        public void onAdLoaded(string msg)
        {
            retryTime = retryTimeOut;
            totalretryTime = 0.0f;
            current = 0.0f;
            isAdLoaded = true;
            if (OnAdLoaded != null)
                OnAdLoaded();
        }
    
        public event listener OnAdOpened;
    
        public void onAdOpened(string msg)
        {
            isAdLoaded = false;
            numberOfImpressions++;
            if (OnAdOpened != null)
                OnAdOpened();
        }
    
        public event listener OnAdLeftApplication;
    
        public void onAdLeftApplication()
        {
            if (OnAdLeftApplication != null)
                OnAdLeftApplication();
        }
    
        public event listener OnAdClosed;
    
        public void onAdClosed()
        {
            if (OnAdClosed != null)
                OnAdClosed();
        }
    
        public event listener OnAdFailedToLoad;
    
        public void onAdFailedToLoad(string errorCode)
        {
            if (timeOutMax != 0 && timeOutMax < totalretryTime)
            {
                // do nothing
            }
            else
            {
                isFail = true;
                totalretryTime += retryTime;
                if (OnAdFailedToLoad != null)
                    OnAdFailedToLoad();
            }
        }
    
        void Update()
        {
    #if UNITY_EDITOR
            return;
    #else
            if (isFail)
            {
                if (current < retryTime)
                {
                    current += Time.deltaTime;
                }
                else
                {
                    isFail = false;
                    current = 0.0f;
                    retryTime += (float)(extendTimeOutPercent * retryTime);
                    prepareInterstitial();
                }
            }
    #endif
        }
    
        public static void _showInterstitial()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._showInterstitial() called");
            return;
    #else
            AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
            if (ai != null)
            {
                ai.showInterstitial();
            }
    #endif
        }
    
        public static void _showInterstitialImmediately()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._showInterstitialImmediately() called");
            return;
    #else
            AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
            if (ai != null)
            {
                ai.showInterstitialImmediately();
            }
    #endif
        }
    
        public static int _numberOfImpressions()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._numberOfImpressions() called. Return 0.");
            return 0;
    #else
            AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
            if (ai != null)
            {
                return ai.numberOfImpressions;
            }
            return -1;
    #endif
        }
    
        public static void _setNumberOfImpressions(int n)
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._setNumberOfImpressions() called. Set " + n);
            return;
    #else
            AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
            if (ai != null)
            {
                ai.numberOfImpressions = n;
            }
    #endif
        }
    
        public static bool _isAdLoaded()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._isAdLoaded() called. Return false");
            return false;
    #else
            AdmobVNTIS_Interstitial ai = (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
            if (ai != null)
            {
                return ai.isAdLoaded;
            }
            return false;
    #endif
        }
    
    
        public static AdmobVNTIS_Interstitial _get()
        {
    #if UNITY_EDITOR
            Debug.Log("AdmobVNTIS_Interstitial._get() called. Return null");
            return null;
    #else
            return (AdmobVNTIS_Interstitial)GameObject.Find("AdmobVNTISInterstitialObject").GetComponent("AdmobVNTIS_Interstitial");
    #endif
        }
    
    }