If I like a developer I buy their wares just to support their work. When I say “I like a developer” I don’t just mean I like their products. I mean that I like the people behind the products.

The reasons he highlights in this article are the same reasons why I develop software.

• Safari Omnibar by Olivier Poitrey — A nifty way to get Google Chrome’s Address/Search bar into the Mac’s default browser.
• Advanced Git | PeepCode Screencasts — I’m just learning git now, in 2012. I met Geoffrey Grosenbach recently at a Cocoaheads meetup in 2011 and Ben Hoskings is a Melbourne local and a git hero.
• App Store - Remotix — An excellent VNC client for iPad and iPhone. Recommended by @abhibeckert
• Continuous Deployment of iOS Apps with Jenkins and TestFlight — I haven’t been doing much iOS work recently, but I will definitely be trying this out when I get back into it.
• Brandon Grotesque - Webfont & Desktop font « MyFonts — A clean looking font that I bought for use on the North of Three logo
• The Ui Toolkit — A collection of handy icons, photoshop textures, patterns and styles. I know a few people who have purchased this already. It only cost me $8 but I’m sure they could get away with charging at least $15–20 for it.

All of these links come highly recommended. Let me know on Twitter (@mattlangtree) if you you liked this post or have any feedback.

I adapted the instructions that JD posted in his article to generate a PNG image of the ERD of a database.

Here are the instructions in full:

• Download the latest version of Sequel Pro
• Install graphviz via homebrew (note - sudo isn’t required for my installation of homebrew). brew install graphviz
• Connect to your MySQL database using Sequel Pro.
• In Sequel Pro, go to File > Export… > Choose Dot as the export type > Export.
• Launch Terminal.app and run the following command from the directory where the .dot file was exported to dot -Tpng your_database.dot > your_database.png 
• I found that on a larger database that this produced a 5355 × 3784px image (which is probably great for printing out on A3 paper)
• I was looking for an ERD I could print out to pass around to some other developers, so I opted for the fdp binary to give me the best results. Again in Terminal.app run: fdp -Tpng localhost-ios-15-11-11.dot > your_database.png 

My instructions vary from JD’s a little in that I use homebrew for installing graphviz and that I export using a different binary (included in the graphviz package). I also took the shortcut of exporting to PNG directly rather than converting to an SVG file first.

The following link helped quite a bit:

http://www.houseofding.com/2008/11/generate-a-self-signed-ssl-certificate-for-local-development-on-a-mac/

The instructions don’t directly match the Lion install, and I ended up putting my apache config options in /etc/apache2/extra/httpd-ssl.conf.

Having a bit of experience with setting up Apache and mod-rewrite previously, it didn’t take longer than 30 minutes to work out - including using my custom URL namespace:

https://myfancysite.mac/

My only suggestion is that if you are sure you’ve done everything right but you can’t get Apache to start then try typing the following command to test for syntax/startup errors.

sudo apachectl configtest

- (CGFloat) tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section

If you are using the same code for tables with and without section headers there’s a good chance that you have some logic like the code below. The important point to note with the release of iOS5 is that it is no longer suitable in iOS5 to only return nil on the - (UIView ) tableView:(UITableView )tableView viewForHeaderInSection:(NSInteger)section if you don’t want the section header to show. You now need to explicitly set a height of 0 for the section header.

If you don’t follow this rule, you may end up with an empty section header being drawn, like so:

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- (CGFloat) tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
  // This is the new important bit for iOS5.
  if ([self currentViewNeedsTableHeaders] ) {
      return 0;
  }
  
  return 45;
}
// Will produce a green view with a black bottom separator line.
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
  if ([self currentViewNeedsTableHeaders] ) {
      return nil;
  }

  // How wide is the screen?
  float w = [[UIScreen mainScreen] bounds].size.width;
  headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0,0.0, w, 44.0)];
  headerLabel.text = [self tableView:tableView titleForHeaderInSection:section];
  headerLabel.backgroundColor = [UIColor colorWithRed:0.431 green:0.820 blue:0.137 alpha:1.0];
  headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, w, 45)];
  headerView.backgroundColor = [UIColor blackColor];
  headerLabel.font = [UIFont boldSystemFontOfSize:15];
  
  // Add Label to the headerView's view hierarchy
  [headerView addSubview:headerLabel];
  return headerView;
}
- (BOOL)currentViewNeedsTableHeaders
{
  return ([self.someProperty isEqualToString:@"parrot"]) ? FALSE : TRUE;
}

So you have a large XML feed with lots of rows/columns that you want to turn into an iPad app. Let’s see what options we have for presenting this data.

1. Start with UITableView and create a subclass of UITableViewCell to layout all of the columns. Sure, but maybe you’ve got more columns than you can show on a single iPad screen. UITableView is not going to be an elegant solution here.
2. OK, you’ll just hook up an NSTableView right? ba-bum! — It’s Mac only.
3. Maybe you could grab Daniel Tull’s DTGridView and add a bunch of UILabel’s to a grid view. This is pretty good, but there is an easier way..
4. Try a UIWebView and use HTML, CSS and Javascript? Well this is the easiest of the lot, so let’s give this a go. What I have created is a hybrid native/web app. We take an iPad app shell, throw in a UIWebView, and use HTML, Javascript, and some CSS to come up with a great looking table of information. I have used HTML 5, jQuery,  Twitter’s Bootstrap and Last.fm’s XML API for events at venues.

{ % img http://mattlangtree.com.au/wp-content/uploads/app-breakdown1.jpg % }

The example project DataTable isn’t modelling a particularly large dataset, but it’s a good start. Additionally, you can use this as a reference for future iPad web apps.

DataTable: View on GitHub | Download Source (Requires Xcode 4.1 or higher)

From Pat’s project description:

Introspect is small set of tools for iOS that aid in debugging user interfaces built with UIKit. It’s especially useful for UI layouts that are dynamically created or can change during runtime, or for tuning performance by finding non-opaque views or views that are re-drawing unnecessarily. It’s designed for use in the iPhone simulator, but can also be used on a device.

If you are laying out custom views and tracking their position/movement throughout the lifecycle of your app this tool will be quite useful.

I heard about this project via word of mouth a while ago, and a few Swipe Conference speakers were speaking very highly of it.

Three things to check out in the included demo app (and to use in your app):

1. Hit spacebar to activate DCIntrospect’s inspector in the iOS simulator.
2. Select any view in your app and press the ‘p’ button on your Mac’s keyboard to dump the properties of that view
3. Use the arrow keys on your keyboard to nudge views around whilst your app is running (similar to Webkit’s Web inspector) Example of properties logged by DCIntrospect’s inspector:

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** UIImageView : UIView : UIResponder : NSObject **
** UIView properties **
tag: 0
frame: {{147, 20}, {64, 64}} | bounds: {{0, 0}, {64, 64}} | center: {179, 52}
transform: [1, 0, 0, 1, 0, 0]
autoresizingMask: UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleBottomMargin
autoresizesSubviews: YES
contentMode: UIViewContentModeScaleToFill | contentStretch: {{0, 0}, {1, 1}}
backgroundColor: R: 0 G: 0 B: 0 A: 0.00
alpha: 1.00 | opaque: NO | hidden: NO | clips to bounds: NO | clearsContextBeforeDrawing: YES
userInteractionEnabled: NO | multipleTouchEnabled: NO
gestureRecognizers: nil
** UIImageView properties **
drawMode: 0
image:
highlightedImage: nil
animationImages: nil
highlightedAnimationImages: nil
animationDuration: 0
animationRepeatCount: 0

Melbourne Cocoaheads July ‘11 - Talk 2 - Patrick Richards - DCIntrospect from Oliver Jones on Vimeo.

Here is the list of libraries and frameworks I use with great success in my projects:

ASIHTTPRequest — A perfectly decent library for all of your HTTP requests including downloading the content of a URL or submitting a form to a website API/endpoint. (Alternatives: GTM HTTP Fetcher thanks @neilang)

SBJSON — A great JSON parser and generator. Turn JSON into NSDictionary’s NSArrays (etc) and vice versa.

Apple’s Reachability class — Included in ASIHTTPRequest, but worth a mention. Apple provides a class for detecting whether you have 3G/Edge access and the device is capable of routing IP traffic. It also pings Apple’s servers to check if you have “greater internet” availability.

EGOImageView — If you are working on a web-based app and you need to show a tableview full of web-loaded images you will want a library like this.

MBProgressHUD — A fairly easy to implement class for showing a translucent HUD (Heads Up Display). Use this if you want to notify a user that an operation has completed or the progress of some database operations that are running.

SFHFKeychainUtils — Fairly straightforward class for interacting with iOS’ keychain. If you are storing user’s passwords in NSUserDefaults – stop. Use the keychain and give this class a go.

MOC/NSManagedObject+Additions — Custom proprietary class for handling core data interaction.  Written by @abhibeckert with additions from yours truly. If you are using or have written a very light weight Core Data wrapper, let me know in the comments.

If you have tried any of these and have found an alternative that works better let me know in the comments.

I would recommend that if you are running an older iMac without an SSD and you log in/out of your machine on a regular basis that you follow my lead  — At least until the option of installing an SSD in your machine is a feasible option (a highly recommended option).

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- (void)restartVideo
{
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:MPMoviePlayerPlaybackDidFinishNotification
                                                  object:nil];
    [mp stop];
    [mp play];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackDidFinish:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:nil];
}

Update: Thanks to @avenjamin for suggesting that I call the method -restartVideo rather than -rewindVideo as the meaning was slightly incorrect.

These are the steps that I followed to get MySQL working on Lion:

1. Update php.ini - enable all mysql extensions (because I use Zend, wordpress and other frameworks)
2. Make sure MySQL is started and you can connect to it in Sequel Pro
3. Go to Database > Server Variables and search for ‘socket’. It will most likely be set to ‘/tmp/mysql.sock’
4. Update the socket locations for MySQL in your php.ini to /tmp/mysql.sock

Before:

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`pdo_mysql.default_socket=/var/mysql/mysql.sock mysql.default_socket =
/var/mysql/mysql.sock mysqli.default_socket = /var/mysql/mysql.sock`

After:

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`pdo_mysql.default_socket=/tmp/mysql.sock mysql.default_socket =
/tmp/mysql.sock mysqli.default_socket = /tmp/mysql.sock`

Go to System Preferences > Sharing and restart ‘Web Sharing’ by unticking then ticking the checkbox next to it.

Refresh the local website you were working on it should all be working. Fingers Crossed.

Installing Sequel Pro and Connecting via a socket and SSH Tunnel

I’ve had a fair bit of feedback from peers about the way I present in my screencasts:

• I need to speak slower. - I need to emphasise stumbling points for new users. - Screencasts are for new users, not me. So make it easy to follow. - The typing is a little loud but it is good to get that additional audible indication of what is happening. - Mouse movements need to be more clear and concise.
  If it all gets too real, I may have to turn commenting off, but for now let me know what you think.

http://boredzo.org/stuph/Xcode_4_Shortcuts_bw-2page.pdf | Local Copy

Upload and comment on your Medium Stack images, share with SMS, Twitter and via the clipboard.

The  iPhone app takes full advantage of the Medium Stack API for accessing all of your media.

He proceeds to rap in the empty warehouse, by himself.

He blows sh*t up and disses a bunch of rappers. finito.

Have a look through the photos and leave a comment on Flickr or on the blog.

But here they are, photos from Mooloolaba to Canberra. There is plenty of video still to come :P

Here’s the quick itinerary of my last few days..

Thursday: Hang out with Belinda and Fabrizio, check out Mooloolaba Main Beach and have beers at O’Malleys with Fabrizio, drive a few hours to pick up some Trials boots for Dave from Brisbane..
Friday: Driving and driving (Mooloolaba to Coffs Harbour)
Saturday: Coffs Harbour to Newcastle (to see a relatives new 350Z and say Hi!), then to Sydney.
Saturday Night: Yummy Thai food + Buzz on PS2 + Ţuica (thanks to Marius Ursache) at Ben Perry’s apartment (avenjamin) in Sydney.
Sunday: 15 minute train ride to Sydney — saw the Harbour bridge, Opera House and Australia’s flagship Apple Store. Drive to Canberra..
Monday: Questacon in the afternoon. Taking Pelham 123 at Hoyts at Woden Plaza. Chased a wombat (we called her Jill) across the road into the bushes near KRudd’s house.
Tomorrow: Check out Jindabyne.. Perisher.. Thredbo .. :)

I was a bit slow off the start, with a few pre-travel requirements stealing the daylight away from me. At the last minute before I thought I was leaving, I asked my awesome dad to give the car a once over and check the essentials.

Oil .. OK, Wiper Fluid ..OK, Tyres .. FAIL!