//    public static void Launch(Android.App.Activity activity, int aid, String imgUrl)
        //    {
        //        Intent intent = new Intent(activity, typeof(VideoDetailsActivity));//.class);
        //        intent.AddFlags(ActivityFlags.NewTask);//  Intent.FLAG_ACTIVITY_NEW_TASK);
        //        intent.PutExtra(ConstantUtil.EXTRA_AV, aid);
        //        intent.PutExtra(ConstantUtil.EXTRA_IMG_URL, imgUrl);
        //        activity.StartActivity(intent);
        //    }

        public void finishTask()
        {
            mFAB.Clickable = true;// setClickable(true);
            Color mFAB_color = new Color(Resource.Color.colorPrimary);

            mFAB.BackgroundTintList = ColorStateList.ValueOf(mFAB_color);
            //SetBackgroundTintList(
            //    ColorStateList.valueOf(getResources().getColor(R.color.colorPrimary)));
            mCollapsingToolbarLayout.Title = "";//.setTitle("");
            if (Android.Text.TextUtils.IsEmpty(imgUrl))
            {
                //Glide.with(VideoDetailsActivity.this)
                //        .load(mVideoDetailsInfo)
                //        .centerCrop()
                //        .diskCacheStrategy(DiskCacheStrategy.ALL)
                //        .placeholder(R.drawable.bili_default_image_tv)
                //        .dontAnimate()
                //        .into(mVideoPreview);
            }

            VideoIntroductionFragment mVideoIntroductionFragment = VideoIntroductionFragment.newInstance(av);
            //VideoCommentFragment mVideoCommentFragment = VideoCommentFragment.newInstance(av);
            var accountFragment = new FragmentAccount();
            var homeFragment    = new FragmentHome();

            fragments.Add(mVideoIntroductionFragment);
            fragments.Add(homeFragment);

            //SetPagerTitle(mVideoDetailsInfo.getData().getStat().getReply().ToString());//  String.valueOf(mVideoDetailsInfo.getStat().getReply()));
            SetPagerTitle("123");
        }
        private void InitAdapter()
        {
            var accountFragment = new FragmentAccount();
            var homeFragment    = new FragmentHome();

            fragments.Add(accountFragment);
            fragments.Add(homeFragment);

            _pager.Adapter = null;
            var oldAdapter = _adapter;

            _adapter       = null;// _useAdapter2 ? new MyPagerAdapter2(this, SupportFragmentManager) : new MyPagerAdapter(SupportFragmentManager);
            _pager.Adapter = _adapter;
            _tabs.SetViewPager(_pager);
            //have to dispose it after we've set the view pager, otherwise an error occurs because we've dumped out
            //the Java Reference.
            if (oldAdapter != null)
            {
                oldAdapter.Dispose();
            }
        }