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+/*
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+ * MIT License
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+ *
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+ * Copyright (c) 2016 Srijith Narayanan
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ * copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in all
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+ * copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ * SOFTWARE.
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+ */
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+
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+package com.nextcloud.talk.utils.animations;
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+
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+import android.support.design.widget.BottomNavigationView;
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+import android.support.design.widget.CoordinatorLayout;
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+import android.support.v4.view.ViewCompat;
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+import android.view.View;
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+
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+/**
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+ * Created by Srijith on 22-12-2016.
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+ * Copied for this project from https://github.com/sjthn/BottomNavigationViewBehavior/blob/master/app/src/main/java/com/example/srijith/bottomnavigationviewbehavior/BottomNavigationViewBehavior.java
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+ */
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+
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+public class BottomNavigationViewBehaviourAnimation extends CoordinatorLayout.Behavior<BottomNavigationView> {
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+
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+ private int height;
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+
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+ @Override
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+ public boolean onLayoutChild(CoordinatorLayout parent, BottomNavigationView child, int layoutDirection) {
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+ height = child.getHeight();
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+ return super.onLayoutChild(parent, child, layoutDirection);
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+ }
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+
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+ @Override
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+ public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout, BottomNavigationView child, View directTargetChild, View target, int nestedScrollAxes) {
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+ return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL;
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+ }
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+
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+ @Override
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+ public void onNestedScroll(CoordinatorLayout coordinatorLayout, BottomNavigationView child, View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed) {
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+ if (dyConsumed > 0) {
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+ slideDown(child);
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+ } else if (dyConsumed < 0) {
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+ slideUp(child);
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+ }
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+ }
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+
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+ private void slideUp(BottomNavigationView child) {
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+ child.clearAnimation();
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+ child.animate().translationY(0).setDuration(200);
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+ }
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+
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+ private void slideDown(BottomNavigationView child) {
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+ child.clearAnimation();
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+ child.animate().translationY(height).setDuration(200);
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+ }
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+
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+}
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