1. 将dp转化为像素值;

int padding = getResources().getDimensionPixelSize(R.dimen.tab_padding);

2.判断recycleview 是否滑动到底部;

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {                @Override                public void onScrolled(RecyclerView recyclerView, int dx, int dy) {                    super.onScrolled(recyclerView, dx, dy);//                    if (mIsLoading)//                        return;                    int visibleItemCount = mLayoutManager.getChildCount();                    int totalItemCount = mLayoutManager.getItemCount();                    int pastVisibleItems = mLayoutManager.findFirstVisibleItemPosition();                    if (pastVisibleItems + visibleItemCount >= totalItemCount) {                        //End of list                        if (!isLoading) {                            presenter.loadVideosFrom(videos.get(videos.size()-1).id);                    isLoading = true;                        }                    }                }            });

3.将id转化成Drawable

Drawable dhome = ContextCompat.getDrawable(this, R.mipmap.ic_tab_home);