Иван Лебедев

public class RVAdapter extends RecyclerView.Adapter<RVAdapter.ContentViewHolder> {

    public interface OnItemClickListener{
       void onItemClicked(int position);
    }

    public static class ContentViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        CardView cv;
        TextView cvTitle;
        TextView cvContent;
        ImageView cvPhoto;
        OnItemClickListener cvClickListener;

        public ContentViewHolder(View itemView, OnItemClickListener clickListener) {
            super(itemView);
            cv = (CardView) itemView.findViewById(R.id.cv);
            cvTitle = (TextView) itemView.findViewById(R.id.text_title);
            cvContent = (TextView) itemView.findViewById(R.id.text_content);
            cvPhoto = (ImageView) itemView.findViewById(R.id.text_photo);
            cvClickListener = clickListener;

            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View v) {
            cvClickListener.onItemClicked(getAdapterPosition());
            Log.i("RecyclerView", "Вы щёлкнули на позиции " + getAdapterPosition());
        }
    }

    List<CardContent> mCardContents;
   
    public RVAdapter(List<CardContent> mCardContents, OnItemClickListener itemClickListener) {
        this.mCardContents = mCardContents;
        this.mItemClickListener = itemClickListener;
    }
   
    @Override
    public int getItemCount() {
        return mCardContents.size();
    }

    @Override
    public ContentViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.cardview, viewGroup, false);
        ContentViewHolder pvh = new ContentViewHolder(v, mItemClickListener);

        return pvh;
    }
    @Override
    public void onBindViewHolder(ContentViewHolder contentViewHolder, int i) {
        contentViewHolder.cvTitle.setText(mCardContents.get(i).title);
        contentViewHolder.cvContent.setText(mCardContents.get(i).content);
        contentViewHolder.cvPhoto.setImageResource(mCardContents.get(i).photoId);
        //Log.i("RecyclerView", "Позиция " + i);

    }
    @Override
    public void onAttachedToRecyclerView(RecyclerView recyclerView) {
        super.onAttachedToRecyclerView(recyclerView);
    }
}

1. В манифесте постевить тему для актитвити Theme.Translucent.NoTitleBar.
   
2. В активити не вызывать setContentView().
   

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.yandex.ru"));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

//запрос всех activity, которые могут этот intent обработать
List<ResolveInfo> resInfo = activity.getPackageManager().queryIntentActivities(intent, 0);
if (!resInfo.isEmpty()) {
	for (ResolveInfo info : resInfo) {
			if (/*здесь проверяй info на предмет нужной тебе activtiy*/) {
				intent.setClassName(info.activityInfo.packageName, info.activityInfo.name);
				intent.setPackage(info.activityInfo.packageName);
				context.startActivity(intent);
				break;
			}
		}
	}
}

class CocktailItem{
		String title;
		String description;
		Bitmap icon;
}

AdapterView.OnItemClickListener() {
		@Override
		public
		void onItemClick(final AdapterView<?> parent, final View view, final int position, final long id) {
			CocktailItem item = (CocktailItem) parent.getAdapter().getItem(position);
			AlertDialog.Builder builder = new AlertDialog.Builder(ShotDrinks.this);

			builder.setTitle(item.title)
					.setMessage(item.description)
					.setCancelable(true)
					.setIcon(R.drawable.ic_launcher)
					...
		}
	};

<activity
				android:name=".SubActivity"
				android:label="@string/title_activity_sub"
				android:parentActivityName=".MainActivity">

			<!-- Parent activity meta-data to support 4.0 and lower -->
			<meta-data
					android:name="android.support.PARENT_ACTIVITY"
					android:value=".MainActivity"/>
		</activity>