1 /*
2  * Copyright (C) 2017 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 
17 package com.example.android.leanback;
18 
19 import android.graphics.Bitmap;
20 import android.graphics.Canvas;
21 import android.graphics.Color;
22 import android.graphics.Paint;
23 
24 /**
25  * Sample PlaybackSeekDataProvider render time label as thumb.
26  */
27 class PlaybackSeekDataProviderSample extends PlaybackSeekAsyncDataProvider {
28 
29     Paint mPaint;
30 
PlaybackSeekDataProviderSample(long duration, long interval)31     PlaybackSeekDataProviderSample(long duration, long interval) {
32         int size = (int) (duration / interval) + 1;
33         long[] pos = new long[size];
34         for (int i = 0; i < pos.length; i++) {
35             pos[i] = i * duration / pos.length;
36         }
37         setSeekPositions(pos);
38         mPaint = new Paint();
39         mPaint.setTextSize(16);
40         mPaint.setColor(Color.BLUE);
41     }
42 
doInBackground(Object task, int index, long position)43     protected Bitmap doInBackground(Object task, int index, long position) {
44         try {
45             Thread.sleep(100);
46         } catch (InterruptedException ex) {
47             // Thread might be interrupted by cancel() call.
48         }
49         if (isCancelled(task)) {
50             return null;
51         }
52         Bitmap bmp = Bitmap.createBitmap(160, 160, Bitmap.Config.ARGB_8888);
53         Canvas canvas = new Canvas(bmp);
54         canvas.drawColor(Color.YELLOW);
55         canvas.drawText(formatTime(position), 10, 80, mPaint);
56         canvas.drawText(Integer.toString(index), 10, 150, mPaint);
57         return bmp;
58     }
59 
formatTime(long ms)60     String formatTime(long ms) {
61         long seconds = ms / 1000;
62         float seconds2 = (ms - seconds * 1000) / 1000f;
63         long minutes = seconds / 60;
64         long hours = minutes / 60;
65         seconds -= minutes * 60;
66         minutes -= hours * 60;
67 
68         StringBuilder b = new StringBuilder();
69         if (hours > 0) {
70             b.append(hours).append(':');
71             if (minutes < 10) {
72                 b.append('0');
73             }
74         }
75         b.append(minutes).append(':');
76         if (seconds < 10) {
77             b.append('0');
78         }
79         b.append(String.format("%.2f", ((float) seconds + seconds2)));
80         return b.toString();
81     }
82 
83 }
84