Recyclerview隐藏单个item代码（经测试有效）！

方法一，经测试有效：

@Override
public void onBindViewHolder(final DownlaodViewHolder holder, final int position) {

if(isVisible){
                holder.setVisibility(true);
    }else{
                holder.setVisibility(false);
}

}

public class DownlaodViewHolder extends RecyclerView.ViewHolder{
    private TextView project_package_name,main_text_title,progress_tex;
    private Button file_load;
    private ProgressBar progress_bar;
    public DownlaodViewHolder(View itemView) {
        super(itemView);
        main_text_title= (TextView) itemView.findViewById(R.id.main_text_title);
        project_package_name= (TextView) itemView.findViewById(R.id.project_package_name);
        progress_tex=(TextView) itemView.findViewById(R.id.progress_tex);
        file_load= (Button) itemView.findViewById(R.id.file_load);
        progress_bar= (ProgressBar) itemView.findViewById(R.id.progress_bar);
    }
    public void setVisibility(boolean isVisible){
        RecyclerView.LayoutParams param = (RecyclerView.LayoutParams)itemView.getLayoutParams();
        if (isVisible){
            param.height = LinearLayout.LayoutParams.WRAP_CONTENT;
            param.width = LinearLayout.LayoutParams.MATCH_PARENT;
            itemView.setVisibility(View.VISIBLE);
        }else{
            itemView.setVisibility(View.GONE);
            param.height = 0;
            param.width = 0;
        }
        itemView.setLayoutParams(param);
    }

}

方法二，未经测试：