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#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>
#include <arpa/inet.h>
- (void)broadCast
{
int socketSD = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (socketSD <= 0) {
NSLog(@"Error: Could not open socket.");
@oanhnn
oanhnn / using-multiple-github-accounts-with-ssh-keys.md
Last active June 5, 2025 15:33
Using multiple github accounts with ssh keys

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

  1. Generate ssh key pairs for accounts and add them to GitHub accounts.
@hootlex
hootlex / laravellocal.md
Last active May 22, 2025 18:37
Run laravel project locally

##Windows users:

cmder will be refered as console

##Mac Os, Ubuntu and windows users continue here:

  • Create a database locally named homestead utf8_general_ci
@MihaelIsaev
MihaelIsaev / CameraViewController.swift
Created April 16, 2015 19:30
This is the example of camera view for iOS written in Swift
import UIKit
import AVFoundation
class ViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
@IBOutlet weak var myView: UIView!
var session: AVCaptureSession?
var device: AVCaptureDevice?
var input: AVCaptureDeviceInput?
@JeOam
JeOam / Animation.md
Last active March 14, 2025 01:34
iOS Core Animation: Advanced Techniques, Part 1: The Layer Beneath

Author: https://www.cyanhall.com/

1. The Layer Tree

Core Animation's original name is Layer Kit

Core Animation is a compositing engine; its job is to compose different pieces of visual content on the screen, and to do so as fast as possible. The content in question is divided into individual layers stored in a hierarchy known as the layer tree. This tree forms the underpinning for all of UIKit, and for everything that you see on the screen in an iOS application.

In UIView, tasks such as rendering, layout and animation are all managed by a Core Animation class called CALayer. The only major feature of UIView that isn’t handled by CALayer is user interaction.

There are four hierarchies, each performing a different role:

@naufraghi
naufraghi / MyImageView.java
Created December 15, 2012 15:38
Move and zoom image with Gestures in and android View
package com.develer.circularsliderule;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;
import android.view.View;
@adamawolf
adamawolf / Apple_mobile_device_types.txt
Last active June 5, 2025 19:13
List of Apple's mobile device codes types a.k.a. machine ids (e.g. `iPhone1,1`, `Watch1,1`, etc.) and their matching product names
i386 : iPhone Simulator
x86_64 : iPhone Simulator
arm64 : iPhone Simulator
iPhone1,1 : iPhone
iPhone1,2 : iPhone 3G
iPhone2,1 : iPhone 3GS
iPhone3,1 : iPhone 4
iPhone3,2 : iPhone 4 GSM Rev A
iPhone3,3 : iPhone 4 CDMA
iPhone4,1 : iPhone 4S
@paulmillr
paulmillr / active.md
Last active May 15, 2025 11:20
Most active GitHub users (by contributions). https://paulmillr.com

Most active GitHub users (git.io/top)

The list would not be updated for now. Don't write comments.

The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Wed, 21 Sep 2022 till Thu, 21 Sep 2023.

Because of GitHub search limitations, only 1000 first users according to amount of followers are included. If you are not in the list you don't have enough followers. See raw data and source code. Algorithm in pseudocode:

githubUsers