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@talhanai
talhanai / UsingPreferenceKey.md
Last active October 31, 2023 09:39
An example .swift code to retrieve GeometryReader value externally using PreferenceKey method.

If you are using SwiftUI elements and want to determine the location of an element on the screen, then you will need to use GeometryReader. However GeometryReader values cannot be accessed externally by parent elements unless you use the PreferenceKey method.

Useful links to references:

@jaredsinclair
jaredsinclair / set-build-number.sh
Last active January 1, 2020 15:41
Git-friendly run script for automated build numbering in Xcode
# Set the build number to the current git commit count.
#
# Permanent home:
# https://gist.github.com/jaredsinclair/af6898f93674ee5923f3
#
# Based on: http://w3facility.info/question/how-do-i-force-xcode-to-rebuild-the-info-plist-file-in-my-project-every-time-i-build-the-project/
# Updated with dSYM handling from http://yellowfeather.co.uk/blog/auto-incrementing-build-number-in-xcode-revisited/
git=`sh /etc/profile; which git`
appBuild=`"$git" rev-list HEAD --count`
@electronut
electronut / ldr.py
Created May 4, 2014 06:14
Display analog data from Arduino using Python (matplotlib animation)
"""
ldr.py
Display analog data from Arduino using Python (matplotlib)
Author: Mahesh Venkitachalam
Website: electronut.in
"""
import sys, serial, argparse
@lelandbatey
lelandbatey / whiteboardCleaner.md
Last active May 20, 2025 13:11
Whiteboard Picture Cleaner - Shell one-liner/script to clean up and beautify photos of whiteboards!

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

@kageurufu
kageurufu / flask.py
Created October 3, 2013 17:42
Flask-WTF FieldLists with Dynamic Entries
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.wtf import Form
from flask.ext.babel import gettext
from wtforms import SelectField, TelField, TextField, FormField, Fieldlist, SubmitField
from wtforms.validators import Optional, Required
app = Flask(__name__)
db = SQLAlchemy(app)
@sloria
sloria / recorder.py
Last active June 24, 2025 11:28
WAV recording functionality using pyaudio
# -*- coding: utf-8 -*-
'''recorder.py
Provides WAV recording functionality via two approaches:
Blocking mode (record for a set duration):
>>> rec = Recorder(channels=2)
>>> with rec.open('blocking.wav', 'wb') as recfile:
... recfile.record(duration=5.0)
Non-blocking mode (start and stop recording):
@akisute
akisute / gist:1141953
Created August 12, 2011 12:41
Create an animated gif file from images in iOS
#import <UIKit/UIKit.h>
#import <ImageIO/ImageIO.h>
#import <MobileCoreServices/MobileCoreServices.h>
- (void)exportAnimatedGif
{
UIImage *shacho = [UIImage imageNamed:@"shacho.png"];
UIImage *bucho = [UIImage imageNamed:@"bucho.jpeg"];
NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"animated.gif"];