How to share the icon image with the Play Store link?

I have researched a lot to try to find something about it, however I only found content about sharing the image of a screenshot. I even found the code below in this site (http://alihc.me/unity-3d-native-nativeshare/) that worked great for sharing screenshot with text. But I'd like to just share the game icon image with the download link in the Play Store. How could I do that?

 using UnityEngine;
 using System.Collections;
 using System.IO;
 using System.Runtime.InteropServices;
 public class NativeShare : MonoBehaviour {
 public string subject,ShareMessage,url;
 private bool isProcessing = false;
 public string ScreenshotName = "screenshot.png";
 public void ShareScreenshotWithText()
 {
 // Share();
 }
 public void Share()
 {
 #if UNITY_ANDROID
 if(!isProcessing)
 StartCoroutine( ShareScreenshot() );
 #elif UNITY_IOS
 if(!isProcessing)
 StartCoroutine( CallSocialShareRoutine() );
 #else
 Debug.Log("No sharing set up for this platform.");
 #endif
 }
 #if UNITY_ANDROID
 public IEnumerator ShareScreenshot()
 {
 isProcessing = true;
 // wait for graphics to render
 yield return new WaitForEndOfFrame();
 string screenShotPath = Application.persistentDataPath + "/" + ScreenshotName;
 Application.CaptureScreenshot(ScreenshotName);
 yield return new WaitForSeconds(1f);
 if(!Application.isEditor)
 {
 AndroidJavaClass intentClass = new AndroidJavaClass("android.content.Intent");
 AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent");
 intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
 AndroidJavaClass uriClass = new AndroidJavaClass("android.net.Uri");
 AndroidJavaObject uriObject = uriClass.CallStatic<AndroidJavaObject>("parse", "file://" + screenShotPath);
 intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_STREAM"), uriObject);
 intentObject.Call<AndroidJavaObject>("setType", "image/png");
 intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), ShareMessage);
 AndroidJavaClass unity = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
 AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity");
 AndroidJavaObject jChooser = intentClass.CallStatic<AndroidJavaObject>("createChooser", intentObject, "YO! I Love Who Lurks!");
 currentActivity.Call("startActivity", jChooser);
 }
 isProcessing = false;
 }
 #endif
 #if UNITY_IOS
 public struct ConfigStruct
 {
 public string title;
 public string message;
 }
 [DllImport ("__Internal")] private static extern void showAlertMessage(ref ConfigStruct conf);
 public struct SocialSharingStruct
 {
 public string text;
 public string url;
 public string image;
 public string subject;
 }
 [DllImport ("__Internal")] private static extern void showSocialSharing(ref SocialSharingStruct conf);
 public void CallSocialShare(string title, string message)
 {
 ConfigStruct conf = new ConfigStruct();
 conf.title = title;
 conf.message = message;
 showAlertMessage(ref conf);
 isProcessing = false;
 }
 public static void CallSocialShareAdvanced(string defaultTxt, string subject, string url, string img)
 {
 SocialSharingStruct conf = new SocialSharingStruct();
 conf.text = defaultTxt; 
 conf.url = url;
 conf.image = img;
 conf.subject = subject;
 showSocialSharing(ref conf);
 }
 IEnumerator CallSocialShareRoutine()
 {
 isProcessing = true;
 string screenShotPath = Application.persistentDataPath + "/" + ScreenshotName;
 Application.CaptureScreenshot(ScreenshotName);
 yield return new WaitForSeconds(1f);
 CallSocialShareAdvanced(ShareMessage, subject, url, screenShotPath);
 }
 #endif
 }