1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.test.hwui;
18
19import android.app.Activity;
20import android.content.Context;
21import android.graphics.Canvas;
22import android.graphics.Color;
23import android.graphics.LinearGradient;
24import android.graphics.Paint;
25import android.graphics.Shader;
26import android.os.Bundle;
27import android.view.View;
28
29@SuppressWarnings("UnusedDeclaration")
30public class GradientStopsActivity extends Activity {
31    @Override
32    protected void onCreate(Bundle savedInstanceState) {
33        super.onCreate(savedInstanceState);
34
35        setContentView(new GradientView(this));
36    }
37
38    private class GradientView extends View {
39        public GradientView(Context context) {
40            super(context);
41        }
42
43        @Override
44        protected void onDraw(Canvas canvas) {
45            int[] colors = new int[] { 0xffff0000, 0xff0000ff };
46            float[] positions = new float[] { 0.3f, 0.6f };
47            LinearGradient gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
48                    colors, positions, Shader.TileMode.CLAMP);
49
50            Paint paint = new Paint();
51            paint.setShader(gradient);
52
53            canvas.drawRect(0.0f, 0.0f, 256.0f, 50.0f, paint);
54
55            colors = new int[] { 0xffff0000, 0xff0000ff, 0xff00ff00 };
56            positions = new float[] { 0.3f, 0.6f, 1.0f };
57            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
58                    colors, positions, Shader.TileMode.CLAMP);
59
60            paint.setShader(gradient);
61
62            canvas.translate(0.0f, 75.0f);
63            canvas.drawRect(0.0f, 0.0f, 256.0f, 50.0f, paint);
64
65            colors = new int[] { 0xffff0000, 0xff0000ff, 0xff00ff00 };
66            positions = new float[] { 0.0f, 0.3f, 0.6f };
67            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
68                    colors, positions, Shader.TileMode.CLAMP);
69
70            paint.setShader(gradient);
71
72            canvas.translate(0.0f, 75.0f);
73            canvas.drawRect(0.0f, 0.0f, 256.0f, 50.0f, paint);
74
75            colors = new int[] { 0xff000000, 0xffffffff };
76            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
77                    colors, null, Shader.TileMode.CLAMP);
78
79            paint.setShader(gradient);
80
81            canvas.translate(0.0f, 75.0f);
82            canvas.drawRect(0.0f, 0.0f, 256.0f, 50.0f, paint);
83
84            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
85                    colors, null, Shader.TileMode.REPEAT);
86
87            paint.setShader(gradient);
88
89            canvas.translate(0.0f, 75.0f);
90            canvas.drawRect(0.0f, 0.0f, 768.0f, 50.0f, paint);
91
92            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
93                    colors, null, Shader.TileMode.MIRROR);
94
95            paint.setShader(gradient);
96
97            canvas.translate(0.0f, 75.0f);
98            canvas.drawRect(0.0f, 0.0f, 768.0f, 50.0f, paint);
99
100            gradient = new LinearGradient(0.0f, 0.0f, 256.0f, 0.0f,
101                    colors, null, Shader.TileMode.CLAMP);
102
103            paint.setShader(gradient);
104
105            canvas.translate(0.0f, 75.0f);
106            canvas.drawRect(0.0f, 0.0f, 768.0f, 50.0f, paint);
107
108            gradient = new LinearGradient(0.0f, 0.0f, 768.0f, 0.0f,
109                    colors, null, Shader.TileMode.CLAMP);
110
111            paint.setShader(gradient);
112
113            canvas.translate(0.0f, 75.0f);
114            canvas.drawRect(0.0f, 0.0f, 768.0f, 50.0f, paint);
115
116            gradient = new LinearGradient(0.0f, 0.0f, 512.0f, 0.0f,
117                    colors, null, Shader.TileMode.CLAMP);
118
119            paint.setShader(gradient);
120
121            canvas.translate(0.0f, 75.0f);
122            canvas.drawRect(0.0f, 0.0f, 512.0f, 50.0f, paint);
123        }
124    }
125}
126