fab: move in direct ratio to scroll
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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@ -27,8 +27,6 @@ import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.animation.AccelerateInterpolator;
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import android.view.animation.DecelerateInterpolator;
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import com.wireguard.android.Application;
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import com.wireguard.android.R;
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@ -38,7 +36,7 @@ import com.wireguard.android.databinding.TunnelListFragmentBinding;
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import com.wireguard.android.databinding.TunnelListItemBinding;
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import com.wireguard.android.model.Tunnel;
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import com.wireguard.android.util.ExceptionLoggers;
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import com.wireguard.android.widget.CustomRecyclerViewScrollListener;
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import com.wireguard.android.widget.fab.FloatingActionsMenuRecyclerViewScrollListener;
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import com.wireguard.config.Config;
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import java.io.BufferedReader;
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@ -62,8 +60,6 @@ import java9.util.stream.StreamSupport;
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public class TunnelListFragment extends BaseFragment {
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private static final int REQUEST_IMPORT = 1;
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private static final String TAG = "WireGuard/" + TunnelListFragment.class.getSimpleName();
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private static final TimeInterpolator FAB_SHOW_ANIMATION = new DecelerateInterpolator(2);
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private static final TimeInterpolator FAB_HIDE_ANIMATION = new AccelerateInterpolator(2);
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private final ActionModeListener actionModeListener = new ActionModeListener();
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@Nullable private ActionMode actionMode;
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@ -196,23 +192,7 @@ public class TunnelListFragment extends BaseFragment {
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}
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return false;
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});
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binding.tunnelList.setOnScrollListener(new CustomRecyclerViewScrollListener() {
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@Override
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public void show() {
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binding.createMenu.animate()
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.translationY(0)
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.setInterpolator(FAB_SHOW_ANIMATION)
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.start();
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}
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@Override
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public void hide() {
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binding.createMenu.animate()
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.translationY(binding.createMenu.getHeight() + getResources().getDimension(R.dimen.fab_margin))
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.setInterpolator(FAB_HIDE_ANIMATION)
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.start();
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}
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});
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binding.tunnelList.setOnScrollListener(new FloatingActionsMenuRecyclerViewScrollListener(binding.createMenu));
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binding.executePendingBindings();
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return binding.getRoot();
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}
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@ -1,43 +0,0 @@
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/*
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* Copyright © 2018 Harsh Shandilya <msfjarvis@gmail.com>
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* Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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package com.wireguard.android.widget;
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import android.support.v7.widget.RecyclerView;
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import com.wireguard.android.R;
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public abstract class CustomRecyclerViewScrollListener extends RecyclerView.OnScrollListener {
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private int scrollDist;
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private boolean isVisible = true;
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private static int flingThreshold;
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@Override
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public void onScrolled(final RecyclerView recyclerView, final int dx, final int dy) {
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super.onScrolled(recyclerView, dx, dy);
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if (flingThreshold == 0)
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flingThreshold = recyclerView.getResources().getDimensionPixelSize(R.dimen.design_fab_size_normal) / 2;
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if (isVisible && scrollDist >= flingThreshold) {
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hide();
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scrollDist = 0;
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isVisible = false;
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} else if (!isVisible && scrollDist <= -flingThreshold) {
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show();
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scrollDist = 0;
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isVisible = true;
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}
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if (isVisible ? dy > 0 : dy < 0) {
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scrollDist += dy;
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}
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}
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public abstract void show();
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public abstract void hide();
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}
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@ -25,8 +25,7 @@ public class FloatingActionButtonBehavior extends CoordinatorLayout.Behavior<Flo
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@Override
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public boolean onDependentViewChanged(final CoordinatorLayout parent, final FloatingActionsMenu child,
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final View dependency) {
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final float translationY = Math.min(0, dependency.getTranslationY() - dependency.getHeight());
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child.setTranslationY(translationY);
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child.setBehaviorYTranslation(Math.min(0, dependency.getTranslationY() - dependency.getMeasuredHeight()));
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return true;
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}
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}
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@ -67,6 +67,8 @@ public class FloatingActionsMenu extends ViewGroup {
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@Nullable private TouchDelegateGroup mTouchDelegateGroup;
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@Nullable private OnFloatingActionsMenuUpdateListener mListener;
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private final Rect touchArea = new Rect(0, 0, 0, 0);
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private float scrollYTranslation;
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private float behaviorYTranslation;
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public FloatingActionsMenu(final Context context) {
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this(context, null);
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@ -103,6 +105,24 @@ public class FloatingActionsMenu extends ViewGroup {
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createAddButton(context);
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}
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public float getScrollYTranslation() {
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return scrollYTranslation;
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}
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public void setScrollYTranslation(final float scrollYTranslation) {
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this.scrollYTranslation = scrollYTranslation;
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setTranslationY(behaviorYTranslation + scrollYTranslation);
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}
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public float getBehaviorYTranslation() {
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return behaviorYTranslation;
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}
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public void setBehaviorYTranslation(final float behaviorYTranslation) {
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this.behaviorYTranslation = behaviorYTranslation;
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setTranslationY(behaviorYTranslation + scrollYTranslation);
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}
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public void setOnFloatingActionsMenuUpdateListener(final OnFloatingActionsMenuUpdateListener listener) {
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mListener = listener;
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}
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@ -0,0 +1,29 @@
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/*
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* Copyright © 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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package com.wireguard.android.widget.fab;
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import android.support.v7.widget.RecyclerView;
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import com.wireguard.android.R;
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public class FloatingActionsMenuRecyclerViewScrollListener extends RecyclerView.OnScrollListener {
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private static final float SCALE_FACTOR = 1.5f;
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private final FloatingActionsMenu menu;
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public FloatingActionsMenuRecyclerViewScrollListener(final FloatingActionsMenu menu) {
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this.menu = menu;
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}
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private static float bound(float min, float proposal, float max) {
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return Math.min(max, Math.max(min, proposal));
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}
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@Override
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public void onScrolled(final RecyclerView recyclerView, final int dx, final int dy) {
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super.onScrolled(recyclerView, dx, dy);
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menu.setScrollYTranslation(bound(0, menu.getScrollYTranslation() + dy * SCALE_FACTOR, menu.getMeasuredHeight() - menu.getTranslationY()));
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}
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}
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@ -30,7 +30,7 @@
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android:id="@+id/tunnel_list"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingBottom="@dimen/design_fab_size_normal"
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android:paddingBottom="@{@dimen/design_fab_size_normal * 1.1f}"
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android:clipToPadding="false"
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android:choiceMode="multipleChoiceModal"
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app:items="@{tunnels}"
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