Tony
eec1f9a839
- We create a trangular path, which we use as the view's outline (for the shadow) and as its PathShape background. - We scale up the arrow as the container opens. Bug: 28980830 Change-Id: I71e566552f063dfdb69067bb7e3cee659988f934
57 lines
1.9 KiB
Java
57 lines
1.9 KiB
Java
/*
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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");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.graphics;
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import android.graphics.Outline;
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import android.graphics.Path;
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import android.graphics.drawable.shapes.PathShape;
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import android.support.annotation.NonNull;
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/**
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* Wrapper around {@link android.graphics.drawable.shapes.PathShape}
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* that creates a shape with a triangular path (pointing up or down).
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*/
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public class TriangleShape extends PathShape {
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private Path mTriangularPath;
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public TriangleShape(Path path, float stdWidth, float stdHeight) {
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super(path, stdWidth, stdHeight);
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mTriangularPath = path;
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}
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public static TriangleShape create(float width, float height, boolean isPointingUp) {
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Path triangularPath = new Path();
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if (isPointingUp) {
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triangularPath.moveTo(0, height);
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triangularPath.lineTo(width, height);
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triangularPath.lineTo(width / 2, 0);
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triangularPath.close();
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} else {
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triangularPath.moveTo(0, 0);
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triangularPath.lineTo(width / 2, height);
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triangularPath.lineTo(width, 0);
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triangularPath.close();
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}
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return new TriangleShape(triangularPath, width, height);
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}
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@Override
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public void getOutline(@NonNull Outline outline) {
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outline.setConvexPath(mTriangularPath);
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}
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}
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