/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui.statusbar.phone;
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import android.content.Context;
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import android.graphics.drawable.AnimatedVectorDrawable;
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import android.util.AttributeSet;
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import android.widget.ImageView;
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import com.android.systemui.R;
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public class ExpandableIndicator extends ImageView {
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private boolean mExpanded;
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private boolean mIsDefaultDirection = true;
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public ExpandableIndicator(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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updateIndicatorDrawable();
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setContentDescription(getContentDescription(mExpanded));
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}
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public void setExpanded(boolean expanded) {
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if (expanded == mExpanded) return;
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mExpanded = expanded;
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final int res = getDrawableResourceId(!mExpanded);
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// workaround to reset drawable
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final AnimatedVectorDrawable avd = (AnimatedVectorDrawable) getContext()
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.getDrawable(res).getConstantState().newDrawable();
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setImageDrawable(avd);
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avd.forceAnimationOnUI();
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avd.start();
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setContentDescription(getContentDescription(expanded));
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}
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/** Whether the icons are using the default direction or the opposite */
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public void setDefaultDirection(boolean isDefaultDirection) {
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mIsDefaultDirection = isDefaultDirection;
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updateIndicatorDrawable();
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}
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private int getDrawableResourceId(boolean expanded) {
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if (mIsDefaultDirection) {
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return expanded ? R.drawable.ic_volume_collapse_animation
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: R.drawable.ic_volume_expand_animation;
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} else {
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return expanded ? R.drawable.ic_volume_expand_animation
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: R.drawable.ic_volume_collapse_animation;
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}
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}
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private String getContentDescription(boolean expanded) {
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return expanded ? mContext.getString(R.string.accessibility_quick_settings_collapse)
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: mContext.getString(R.string.accessibility_quick_settings_expand);
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}
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private void updateIndicatorDrawable() {
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final int res = getDrawableResourceId(mExpanded);
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setImageResource(res);
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}
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}
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