Unity之启动外部APK

if (GUILayout.Button("LoadApk"))
        {
            openPackage("com.test.apk");
        }

    }

    void openPackage(string pkgName)
    {
        using (AndroidJavaClass jcPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
        {
            using (AndroidJavaObject joActivity = jcPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
            {
                using (AndroidJavaObject joPackageManager = joActivity.Call<AndroidJavaObject>("getPackageManager"))
                {
                    using (AndroidJavaObject joIntent = joPackageManager.Call<AndroidJavaObject>("getLaunchIntentForPackage", pkgName))
                    {
                        if (null != joIntent)
                        {
                            joActivity.Call("startActivity", joIntent);
                        }
                    }
                }
            }
        }
    }