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dotdoom / main.dart
Created Mar 15, 2019
Future, async and scheduleMicrotask
View main.dart
import 'dart:async';
Future<void> b(value) async {
await Future.delayed(Duration(seconds: 0));
// OR: remove the line ABOVE for fun effect.
Future<void> a(value) async {
dotdoom / main.dart
Created Dec 25, 2018
Default initializer vs constructor
View main.dart
class A {
String value;
A(this.value) { print(value); }
String toString() => value;
class B {
A a = A('Default');
dotdoom / main.dart
Created Dec 7, 2018
URI schemes for sending emails (iOS)
View main.dart
import 'dart:core';
void main() {
final commonOptions = {
'subject': 'test',
'body': 'foobar',
print(Uri(scheme: 'mailto', path: '', queryParameters: commonOptions));
dotdoom / flutter-firebase-order-by-child.dart
Created Jul 15, 2018
Demo of FirebaseDatabase orderByChild with Flutter
View flutter-firebase-order-by-child.dart
import 'package:flutter/material.dart';
import 'package:firebase_database/firebase_database.dart';
import 'package:flutter/foundation.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
const subpath = 'flutter-firebase-order-by-child';
MyApp() {
dotdoom /
Created Mar 22, 2018
Forgot PIN for Linux Remote Desktop, but still have SSH access? Here's a solution. Remember to backup all config files!
#!/usr/bin/env python
# Portions Copyright Chromium Project.
import base64
import hashlib
import hmac
import json
import os
import sys
View wait-for-play-services-boot.yml
- emulator -avd test -no-window:
background: true
- circle-android wait-for-boot
# Wait until there's no log spam for some time -- means all Google Play Services have booted.
- >
while ! cmp /tmp/android.log /tmp/android-previous.log; do
mv /tmp/android.log /tmp/android-previous.log
sleep 20
# Compare the last few lines of logcat
adb logcat -t 25 >/tmp/android.log
dotdoom / adbtcpipd
Last active Jul 31, 2016
A "daemon" constantly trying to enable ADB tcpip on any connected device
View adbtcpipd
#!/usr/bin/env bash
sleep 5
if /sbin/ifconfig usb0 &>/dev/null; then
# usb0 is present - we are in slave mode, this script won't work.
led() {
dotdoom / verify.go
Last active Jul 11, 2016
Verify Google-issued OAuth2 token in Go
View verify.go
package main
import (
dotdoom / i2c.ino
Created Jun 1, 2016
An example of doing an i2c slave with Arduino
View i2c.ino
#define I2CAddress 0x42
void setup() {
// Remember to keep those handlers as time-critical as possible:
// no interrupts will be happening while these are running.
// Also the other end of i2c communication might just
// give up waiting. So keep the logic in loop() and let i2c
// handlers only operate on ready data.
dotdoom /
Created Mar 24, 2016
ZVV Tarifzonen KML (Google Maps)
#!/usr/bin/env python
# Fetch ZVV Tarifzonen map in SVG and convert to KML.
# You can save the output and import into Google Maps.
# Use at your own risk. The API used is not publicly disclosed,
# improper use may lead to lawsuits.
import sys
import urllib2
import xml.etree.ElementTree as ET
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