stefanJi

<div>
  <video width=450 height=300 class="video-js vjs-default-skin vjs-big-play-centered">
    <source src="http://d2zihajmogu5jn.cloudfront.net/bipbop-advanced/bipbop_16x9_variant.m3u8" type="application/x-mpegURL" />
  </video>
</div>
<hr />
<div>
  <video width=450 height=300 class="video-js vjs-default-skin vjs-big-play-centered">
    <source src="http://d2zihajmogu5jn.cloudfront.net/bipbop-advanced/bipbop_16x9_variant.m3u8" type="application/x-mpegURL" />
  </video>

stefanJi

import 'package:flutter/widgets.dart';

class WaveCard extends StatelessWidget {
  WaveCard({Key key, padding: EdgeInsets}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final painter = WavePainter(Color.fromRGBO(96, 204, 184, 0.2));
    return CustomPaint(
      painter: painter,

stefanJi

# install ffmpeg with aac model in mac
# brew tap varenc/ffmpeg
# brew tap-pin varenc/ffmpeg
# brew options ffmpeg
# brew install ffmpeg --with-fdk-aac --HEAD
# Useage: ./mp3Toaac.sh path-mp3-audios-dir/
# will cover all mp3 audios to aac audio.

echo "$1"

stefanJi

/**
 * Returns a list of all the elements that are not included in this collection and that are not included in the specified collection.
 */
public fun <T> Iterable<T>.subtractX(other: Iterable<T>): List<T> {
    return filterNot { other.contains(it) } + other.filterNot { contains(it) }
}

stefanJi

Center(
   child: Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [10, 29, 18, 27, 16, 15, 24, 3, 20, 10]
           .map<Widget>((i) {
         return Padding(
             padding: EdgeInsets.only(right: 10),
             child: IntervalProgressBar(
                 direction: IntervalProgressDirection.vertical,
                 max: 30,

stefanJi

abstract class IntervalProgressPainter extends CustomPainter {
  final int max;
  final int progress;
  final int intervalSize;
  final Color highlightColor;
  final Color defaultColor;
  final Color intervalColor;
  final Color intervalHighlightColor;
  final double radius;

stefanJi

import kotlinx.coroutines.*
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.atomic.AtomicInteger
import kotlin.coroutines.CoroutineContext

fun main() {
    val dispatcherMgr = PauseDispatcherMgr()

    GlobalScope.launch {
        withContext(dispatcherMgr.pausableDispatcher(Dispatchers.IO)) {

stefanJi

Reset mysql root password in Mac OS:

First Stop MySQL:

1. Go to: 'System Preferences' >> 'MySQL' and stop MySQL

OR,

1. sudo /usr/local/mysql/support-files/mysql.server start
2. sudo /usr/local/mysql/support-files/mysql.server stop

stefanJi

ADB=${ANDROID_HOME}/platform-tools/adb
HPROF_CONV=${ANDROID_HOME}/platform-tools/hprof-conv

# customized functions
# dump droid heap
function droid_hd() {
    PACKAGE_NAME=$1

    TIME=$(date +"%Y%m%d_%H%M%S")
    FILE_NAME="${PACKAGE_NAME}-${TIME}-heap.hprof"

stefanJi

acme.sh --issue -d blog.jiyang.site --webroot  /home/jy/stefanji.github.io/

acme.sh  --installcert  -d  blog.jiyang.site   \
        --key-file   /home/jy/ssl/blog.jiyang.site.key \
        --fullchain-file /home/jy/ssl/fullchain.cer

## nginx config
server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;