lidemin · February 6, 2015 08:18 · Feb 6, 2015
diff --git a/DLRecyclerView.java b/DLRecyclerView.java
@@ -0,0 +1,66 @@
+public class DLRecyclerView extends RecyclerView {
+
+    public interface OnScrollListener {
+        /**
+         * only works when layoutmanager is LinearLayoutManager
+         */
+        public abstract void onScrollToEnd();
+    }
+
+    private OnScrollListener _onScrollListener;
+
+    public void setOnScrollListener(OnScrollListener onScrollListener) {
+        _onScrollListener = onScrollListener;
+    }
+
+    public DLRecyclerView(Context context) {
+        super(context);
+        init();
+    }
+
+    public DLRecyclerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public DLRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+
+    private boolean _loading = false;
+
+    int pastVisibleItems, visibleItemCount, totalItemCount;
+
+    public boolean isLoading() {
+        return _loading;
+    }
+
+    public void setLoading(boolean loading) {
+        this._loading = loading;
+    }
+
+    private void init() {
+        if (!isInEditMode()) {
+            setOnScrollListener(new RecyclerView.OnScrollListener() {
+                @Override
+                public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
+                    if (getLayoutManager() instanceof LinearLayoutManager) {
+                        visibleItemCount = getLayoutManager().getChildCount();
+                        totalItemCount = getLayoutManager().getItemCount();
+                        pastVisibleItems = ((LinearLayoutManager) getLayoutManager()).findFirstVisibleItemPosition();
+                        if (!_loading) {
+                            if ((visibleItemCount + pastVisibleItems) >= totalItemCount) {
+                                _loading = true;
+                                if (_onScrollListener != null) {
+                                    _onScrollListener.onScrollToEnd();
+                                }
+                            }
+                        }
+                    }
+                }
+            });
+        }
+    }
+}