效果圖:

程式碼已經同步到github~

Gradle引入依賴:

  allprojects {
    		repositories {
    			...
    			maven { url 'https://jitpack.io' }
    		}
    	}


    dependencies {
    	        compile 'com.github.louyulin:PullLoadRecyclerView:v1.1'
    	}

關鍵程式碼使用:

//繫結元件
pullrv = (PullLoadRecyclerView) findViewById(R.id.pullrv);
//設定下拉顏色
pullrv.setSwipeRefreshColor(android.R.color.holo_blue_bright,android.R.color.holo_blue_dark,android.R.color.holo_blue_bright);
//設定列數和滾動方向
pullrv.setLayoutManager(4, LinearLayoutManager.VERTICAL);
//設定底部據高度
pullrv.setFootHeight(100);
//設定底佈局字型大小
pullrv.setFootTextSize(35.5f);
//設定底佈局字型顏色
pullrv.setFootTextColor(getResources().getColor(R.color.red));
//設定底佈局文字內容
pullrv.setFootTextContent ("設定字串");
//設定底部據背景顏色
pullrv.setFootBackGroundColor(getResources().getColor(R.color.colorPrimary));
//設定監聽
        pullrv.setOnPullLoadMoreListener(new PullLoadRecyclerView.OnPullLoadMoreListener() {
            @Override
            public void reRresh() {

            }

            @Override
            public void loadMore() {

            }
        });
 

繼承LinearLayout並將RecyclerView和底佈局包含在內

public class PullLoadRecyclerView extends LinearLayout {

    private Context mContext;
    private SwipeRefreshLayout mSwipeRefreshLayout;
    private boolean mIsRefresh = false; //是否是重新整理
    private boolean mIsLoadMore = false; //是否是載入更多
    private RecyclerView mRecyclerView;
    private View mFootView;
    private OnPullLoadMoreListener mOnPullLoadMoreListener;

    public PullLoadRecyclerView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView(context);
    }

    public PullLoadRecyclerView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView(context);
    }

    public PullLoadRecyclerView(Context context) {
        super(context);
        initView(context);
    }

    private void initView(Context context) {
        mContext = context;
        View view = LayoutInflater.from(mContext).inflate(R.layout.pull_loadmore_layout, null);
        mSwipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipeRefreshLayout);

        mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayoutOnRefresh());

        //處理RecyclerView
        mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerview);
        mRecyclerView.setHasFixedSize(true); //設定固定大小
        mRecyclerView.setItemAnimator(new DefaultItemAnimator());//使用預設動畫
        mRecyclerView.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return mIsRefresh || mIsLoadMore;
            }
        });

        mRecyclerView.setVerticalScrollBarEnabled(false);//隱藏滾動條
        mRecyclerView.addOnScrollListener(new RecyclerViewOnScroll());
        mFootView = view.findViewById(R.id.footer_view);
        ImageView imageView = (ImageView) mFootView.findViewById(R.id.iv_load_img);
   
        TextView textView = (TextView) mFootView.findViewById(R.id.tv_load_text);
        mFootView.setVisibility(View.GONE);
        //view 包含swipeRefreshLayout, RecyclerView, FootView
        this.addView(view);//
    }

    //設定重新整理時控制元件顏色漸變
    public void setSwipeRefreshColor(Integer ...colors) {
        for (int i = 0; i < colors.length ; i++) {
            mSwipeRefreshLayout.setColorSchemeResources(colors[i]);
        }
    }

    //外部可以設定recyclerview的列數

    public void setLayoutManager(int spanCount,int orientation){
        GridLayoutManager manager = new GridLayoutManager(mContext, spanCount);
        manager.setOrientation(orientation);
        mRecyclerView.setLayoutManager(manager);
    }

    public void setAdapter(RecyclerView.Adapter adapter) {
        if (adapter != null) {
            mRecyclerView.setAdapter(adapter);
        }
    }

    class SwipeRefreshLayoutOnRefresh implements SwipeRefreshLayout.OnRefreshListener{

        @Override
        public void onRefresh() {
             if (!mIsRefresh) {
                 mIsRefresh = true;
                 refreshData();
             }
        }
    }

    class RecyclerViewOnScroll extends RecyclerView.OnScrollListener {
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            super.onScrolled(recyclerView, dx, dy);
            int firstItem = 0;
            int lastItem = 0;
            RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
            int totalCount = manager.getItemCount();
            if (manager instanceof GridLayoutManager) {
                GridLayoutManager gridlayoutManager = (GridLayoutManager) manager;
                //第一個完全可見的item
                firstItem = gridlayoutManager.findFirstCompletelyVisibleItemPosition();
                //最後一個完全可見的item
                lastItem = gridlayoutManager.findLastCompletelyVisibleItemPosition();
                if (firstItem == 0 || firstItem == RecyclerView.NO_POSITION) {
                    lastItem = gridlayoutManager.findLastVisibleItemPosition();
                }
            }
            //什麼時候觸發上拉載入更多?
            // 1.載入更多是false
            // 2.totalCount - 1 === lastItem
            // 3.mSwipeRefreshLayout可以用
            // 4. 不是處於下拉重新整理狀態
            // 5. 偏移量dx > 0 或dy > 0
            if (!mIsLoadMore
                && totalCount - 1 == lastItem
                && mSwipeRefreshLayout.isEnabled()
                && !mIsRefresh
                && (dx > 0 || dy > 0)) {
                mIsLoadMore = true;
                //在載入更多時,禁止mSwipeRefreshLayout使用
                mSwipeRefreshLayout.setEnabled(false);
                loadMoreData();
            } else {
                mSwipeRefreshLayout.setEnabled(true);
            }
        }
    }

    private void refreshData() {
        if (mOnPullLoadMoreListener != null) {
            mOnPullLoadMoreListener.reRresh();
        }
    }

    private void loadMoreData() {
        if (mOnPullLoadMoreListener != null) {
            mFootView.animate().translationY(0).setInterpolator(new AccelerateDecelerateInterpolator())
                    .setDuration(300).setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationStart(Animator animation) {
                    super.onAnimationStart(animation);
                    mFootView.setVisibility(View.VISIBLE);
                    //mAnimationDrawable.start();
                }
            }).start();
            invalidate();
            mOnPullLoadMoreListener.loadMore();
        }
    }

    //設定重新整理完畢
    public void setRefreshCompleted() {
        mIsRefresh = false;
        setRefreshing(false);
    }

    //設定是否正在重新整理
    private void setRefreshing(final boolean isRefreshing) {
        mSwipeRefreshLayout.post(new Runnable() {
            @Override
            public void run() {
                mSwipeRefreshLayout.setRefreshing(isRefreshing);
            }
        });
    }

    public void setLoadMoreCompleted() {
        mIsLoadMore = false;
        mIsRefresh = false;
        setRefreshing(false);
        mFootView.animate().translationY(mFootView.getHeight()).setInterpolator(new AccelerateDecelerateInterpolator())
                .setDuration(300).start();
    }

    public interface OnPullLoadMoreListener {
        void reRresh();
        void loadMore();
    }

    public void setOnPullLoadMoreListener(OnPullLoadMoreListener listener) {
        mOnPullLoadMoreListener = listener;
    }
}