Added scroll animation

liboverscroll/src/main/java/me/everything/android/ui/overscroll/adapters/NestedScrollViewOverScrollDecorAdapter.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package me.everything.android.ui.overscroll.adapters;
+
+import android.view.View;
+import androidx.annotation.NonNull;
+import androidx.core.widget.NestedScrollView;
+
+public class NestedScrollViewOverScrollDecorAdapter implements IOverScrollDecoratorAdapter {
+
+    protected final NestedScrollView mView;
+
+    public NestedScrollViewOverScrollDecorAdapter(@NonNull NestedScrollView view) {
+        this.mView = view;
+    }
+
+    public View getView() {
+        return this.mView;
+    }
+
+    public boolean isInAbsoluteEnd() {
+        return !this.mView.canScrollVertically(1);
+    }
+
+    public boolean isInAbsoluteStart() {
+        return !this.mView.canScrollVertically(-1);
+    }
+}