| /* |
| * Copyright (C) 2019 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.volume; |
| |
| import android.content.Context; |
| import android.graphics.CornerPathEffect; |
| import android.graphics.Paint; |
| import android.graphics.drawable.ShapeDrawable; |
| import android.util.AttributeSet; |
| import android.util.TypedValue; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.LinearLayout; |
| |
| import androidx.core.content.ContextCompat; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.recents.TriangleShape; |
| |
| /** |
| * Tool tip view that draws an arrow that points to the volume dialog. |
| */ |
| public class VolumeToolTipView extends LinearLayout { |
| public VolumeToolTipView(Context context) { |
| super(context); |
| } |
| |
| public VolumeToolTipView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public VolumeToolTipView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public VolumeToolTipView(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| drawArrow(); |
| } |
| |
| private void drawArrow() { |
| View arrowView = findViewById(R.id.arrow); |
| ViewGroup.LayoutParams arrowLp = arrowView.getLayoutParams(); |
| ShapeDrawable arrowDrawable = new ShapeDrawable(TriangleShape.createHorizontal( |
| arrowLp.width, arrowLp.height, false)); |
| Paint arrowPaint = arrowDrawable.getPaint(); |
| TypedValue typedValue = new TypedValue(); |
| getContext().getTheme().resolveAttribute(android.R.attr.colorAccent, typedValue, true); |
| arrowPaint.setColor(ContextCompat.getColor(getContext(), typedValue.resourceId)); |
| // The corner path effect won't be reflected in the shadow, but shouldn't be noticeable. |
| arrowPaint.setPathEffect(new CornerPathEffect( |
| getResources().getDimension(R.dimen.volume_tool_tip_arrow_corner_radius))); |
| arrowView.setBackground(arrowDrawable); |
| |
| } |
| } |