mirror of https://github.com/kurisufriend/Clover
Floens
10 years ago
parent
4ef7916d68
commit
0566c89093
@ -0,0 +1,136 @@ |
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/* |
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* Clover - 4chan browser https://github.com/Floens/Clover/
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* Copyright (C) 2014 Floens |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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package org.floens.chan.ui.view; |
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import android.content.Context; |
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import android.support.design.widget.CoordinatorLayout; |
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import android.support.design.widget.FloatingActionButton; |
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import android.support.design.widget.Snackbar; |
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import android.util.AttributeSet; |
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import android.view.ViewGroup; |
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import android.view.animation.DecelerateInterpolator; |
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import org.floens.chan.ui.toolbar.Toolbar; |
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public class HidingFloatingActionButton extends FloatingActionButton implements Toolbar.ToolbarCollapseCallback { |
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private boolean attachedToWindow; |
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private Toolbar toolbar; |
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private boolean attachedToToolbar; |
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private CoordinatorLayout coordinatorLayout; |
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private int currentCollapseTranslation; |
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public HidingFloatingActionButton(Context context) { |
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super(context); |
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} |
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public HidingFloatingActionButton(Context context, AttributeSet attrs) { |
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super(context, attrs); |
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} |
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public HidingFloatingActionButton(Context context, AttributeSet attrs, int defStyleAttr) { |
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super(context, attrs, defStyleAttr); |
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} |
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public void setToolbar(Toolbar toolbar) { |
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this.toolbar = toolbar; |
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if (attachedToWindow && !attachedToToolbar) { |
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toolbar.addCollapseCallback(this); |
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attachedToToolbar = true; |
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} |
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} |
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@Override |
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protected void onAttachedToWindow() { |
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super.onAttachedToWindow(); |
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attachedToWindow = true; |
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if (!(getParent() instanceof CoordinatorLayout)) { |
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throw new IllegalArgumentException("HidingFloatingActionButton must be a parent of CoordinatorLayout"); |
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} |
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coordinatorLayout = (CoordinatorLayout) getParent(); |
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if (toolbar != null && !attachedToToolbar) { |
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toolbar.addCollapseCallback(this); |
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attachedToToolbar = true; |
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} |
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} |
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@Override |
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protected void onDetachedFromWindow() { |
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super.onDetachedFromWindow(); |
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attachedToWindow = false; |
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if (attachedToToolbar) { |
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toolbar.removeCollapseCallback(this); |
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attachedToToolbar = false; |
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} |
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coordinatorLayout = null; |
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} |
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@Override |
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public void onCollapseTranslation(float offset) { |
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if (isSnackbarShowing()) { |
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currentCollapseTranslation = -1; |
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return; |
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} |
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// Logger.test("onCollapseTranslation " + offset);
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int translation = (int) (getTotalHeight() * offset); |
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if (translation != currentCollapseTranslation) { |
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currentCollapseTranslation = translation; |
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float diff = Math.abs(translation - getTranslationY()); |
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if (diff >= getHeight()) { |
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animate().translationY(translation).setDuration(300).setStartDelay(0).setInterpolator(new DecelerateInterpolator(2f)).start(); |
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} else { |
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setTranslationY(translation); |
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} |
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} |
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} |
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@Override |
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public void onCollapseAnimation(boolean collapse) { |
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if (isSnackbarShowing()) { |
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currentCollapseTranslation = -1; |
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return; |
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} |
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// Logger.test("onCollapseAnimation " + collapse);
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int translation = collapse ? getTotalHeight() : 0; |
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if (translation != currentCollapseTranslation) { |
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currentCollapseTranslation = translation; |
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animate().translationY(translation).setDuration(300).setStartDelay(0).setInterpolator(new DecelerateInterpolator(2f)).start(); |
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} |
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} |
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private int getTotalHeight() { |
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return getHeight() + ((ViewGroup.MarginLayoutParams) getLayoutParams()).bottomMargin; |
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} |
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private boolean isSnackbarShowing() { |
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for (int i = 0; i < coordinatorLayout.getChildCount(); i++) { |
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if (coordinatorLayout.getChildAt(i) instanceof Snackbar.SnackbarLayout) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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