1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.statusbar.phone; 16 17 import android.content.Context; 18 import android.graphics.drawable.AnimatedVectorDrawable; 19 import android.util.AttributeSet; 20 import android.widget.ImageView; 21 import com.android.systemui.R; 22 23 public class ExpandableIndicator extends ImageView { 24 25 private boolean mExpanded; 26 private boolean mIsDefaultDirection = true; 27 28 public ExpandableIndicator(Context context, AttributeSet attrs) { 29 super(context, attrs); 30 } 31 32 @Override 33 protected void onFinishInflate() { 34 super.onFinishInflate(); 35 final int res = getDrawableResourceId(mExpanded); 36 setImageResource(res); 37 setContentDescription(getContentDescription(mExpanded)); 38 } 39 40 public void setExpanded(boolean expanded) { 41 if (expanded == mExpanded) return; 42 mExpanded = expanded; 43 final int res = getDrawableResourceId(!mExpanded); 44 // workaround to reset drawable 45 final AnimatedVectorDrawable avd = (AnimatedVectorDrawable) getContext() 46 .getDrawable(res).getConstantState().newDrawable(); 47 setImageDrawable(avd); 48 avd.forceAnimationOnUI(); 49 avd.start(); 50 setContentDescription(getContentDescription(expanded)); 51 } 52 53 /** Whether the icons are using the default direction or the opposite */ 54 public void setDefaultDirection(boolean isDefaultDirection) { 55 mIsDefaultDirection = isDefaultDirection; 56 } 57 58 private int getDrawableResourceId(boolean expanded) { 59 if (mIsDefaultDirection) { 60 return expanded ? R.drawable.ic_volume_collapse_animation 61 : R.drawable.ic_volume_expand_animation; 62 } else { 63 return expanded ? R.drawable.ic_volume_expand_animation 64 : R.drawable.ic_volume_collapse_animation; 65 } 66 } 67 68 private String getContentDescription(boolean expanded) { 69 return expanded ? mContext.getString(R.string.accessibility_quick_settings_collapse) 70 : mContext.getString(R.string.accessibility_quick_settings_expand); 71 } 72 } 73