| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.systemui.accessibility.accessibilitymenu.utils; |
| |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.graphics.Bitmap; |
| import android.graphics.Bitmap.Config; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.Paint.Style; |
| import android.graphics.drawable.AdaptiveIconDrawable; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.ColorDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.LayerDrawable; |
| import android.graphics.drawable.RippleDrawable; |
| |
| import com.android.systemui.accessibility.accessibilitymenu.R; |
| |
| /** Creates background drawable for a11y menu shortcut. */ |
| public class ShortcutDrawableUtils { |
| |
| /** |
| * To make the circular background of shortcut icons have higher resolution. The higher value of |
| * LENGTH is, the higher resolution of the circular background are. |
| */ |
| private static final int LENGTH = 480; |
| |
| private static final int RADIUS = LENGTH / 2; |
| private static final int COORDINATE = LENGTH / 2; |
| private static final int RIPPLE_COLOR_ID = R.color.ripple_material_color; |
| |
| private final Context mContext; |
| private final ColorStateList mRippleColorStateList; |
| |
| // Placeholder of drawable to prevent NullPointerException |
| private final ColorDrawable mTransparentDrawable = new ColorDrawable(Color.TRANSPARENT); |
| |
| public ShortcutDrawableUtils(Context context) { |
| this.mContext = context; |
| |
| int rippleColor = context.getColor(RIPPLE_COLOR_ID); |
| mRippleColorStateList = ColorStateList.valueOf(rippleColor); |
| } |
| |
| /** |
| * Creates a circular drawable in specific color for shortcut. |
| * |
| * @param colorResId color resource ID |
| * @return drawable circular drawable |
| */ |
| public Drawable createCircularDrawable(int colorResId) { |
| Bitmap output = Bitmap.createBitmap(LENGTH, LENGTH, Config.ARGB_8888); |
| Canvas canvas = new Canvas(output); |
| int color = mContext.getColor(colorResId); |
| Paint paint = new Paint(); |
| paint.setColor(color); |
| paint.setStrokeCap(Paint.Cap.ROUND); |
| paint.setStyle(Style.FILL); |
| canvas.drawCircle(COORDINATE, COORDINATE, RADIUS, paint); |
| |
| BitmapDrawable drawable = new BitmapDrawable(mContext.getResources(), output); |
| return drawable; |
| } |
| |
| /** |
| * Creates an adaptive icon drawable in specific color for shortcut. |
| * |
| * @param colorResId color resource ID |
| * @return drawable for adaptive icon |
| */ |
| public Drawable createAdaptiveIconDrawable(int colorResId) { |
| Drawable circleLayer = createCircularDrawable(colorResId); |
| RippleDrawable rippleLayer = new RippleDrawable(mRippleColorStateList, null, null); |
| |
| AdaptiveIconDrawable adaptiveIconDrawable = |
| new AdaptiveIconDrawable(circleLayer, mTransparentDrawable); |
| |
| Drawable[] layers = {adaptiveIconDrawable, rippleLayer}; |
| LayerDrawable drawable = new LayerDrawable(layers); |
| return drawable; |
| } |
| } |