nicksnyder

//  Created by Nick Snyder on 11/13/12.
//  https://gist.github.com/nicksnyder/4075682
//  http://stackoverflow.com/questions/12927027/uicollectionview-flowlayout-not-wrapping-cells-correctly-ios
//  NDCollectionViewFlowLayout.h
@interface NDCollectionViewFlowLayout : UICollectionViewFlowLayout

@end

ole

# (File moved to https://github.com/ole/Storyboard-Strings-Extraction)

lisamelton

#!/bin/bash
#
# transcode-video.sh
#
# Copyright (c) 2013-2015 Don Melton
#

about() {
    cat <<EOF
$program 5.13 of April 8, 2015

lisamelton

#!/bin/bash
#
# detect-crop.sh
#
# Copyright (c) 2013-2015 Don Melton
#

about() {
    cat <<EOF
$program 3.3 of January 22, 2015

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

smileyborg

// For the best results, your tableHeaderView/tableFooterView should be a UITableViewHeaderFooterView with your content inside the contentView.
let tableHeaderView = UITableViewHeaderFooterView()
    
let fittingSize = CGSize(width: tableView.bounds.width - (tableView.safeAreaInsets.left + tableView.safeAreaInsets.right), height: 0)
let size = tableHeaderView.systemLayoutSizeFitting(fittingSize, withHorizontalFittingPriority: .required, verticalFittingPriority: .fittingSizeLevel)
tableHeaderView.frame = CGRect(origin: .zero, size: size)
tableView.tableHeaderView = tableHeaderView

// When you set this view to the tableHeaderView/tableFooterView on the table view, the table view will preserve the existing size of its frame.
// If you need to change the size, remove the tableHeaderView/tableFooterView, set a new frame on it, then re-set it on the table view again.