Comments on: New Easy! app: Tipr http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/ It’s a work in progress Fri, 25 Jul 2008 12:24:32 +0000 http://wordpress.org/?v=2.0 by: Aaron http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11987 Mon, 15 Oct 2007 18:57:34 +0000 http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11987 Thanks for the suggestions Chris. I may look into some options like that, but I'll need to add them in as unobtrusive a way as possible. I am also trying to remain extremely conscious of download times and the fact that over 1/3 of our users are using the non-Ajax version of Tipr, meaning their JavaScript support may be spotty, non-existent, or turned off. On the subject of the tip percentage though, I do know some people who do tip upwards of 30% on special occasions or who do tip less than 10% when warranted. I wanted to keep it flexible, but start with a sensible default. As a side-note, the SMS interface (via Twitter) allows for fully-customized tip amounts. Thanks for the suggestions Chris. I may look into some options like that, but I’ll need to add them in as unobtrusive a way as possible. I am also trying to remain extremely conscious of download times and the fact that over 1/3 of our users are using the non-AJAX version of Tipr, meaning their JavaScript support may be spotty, non-existent, or turned off.

On the subject of the tip percentage though, I do know some people who do tip upwards of 30% on special occasions or who do tip less than 10% when warranted. I wanted to keep it flexible, but start with a sensible default. As a side-note, the SMS interface (via Twitter) allows for fully-customized tip amounts.

]]> by: Christopher Fahey http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11986 Mon, 15 Oct 2007 18:47:12 +0000 http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11986 Cool! Two UI improvement ideas: 1. For the Check field, don't use the normal iPhone keyboard. Create a purely-javascript numeric keypad with big-ass buttons that are easy to type that populates a text area. No need to use the normal keyboard when all you need is 0-9 and a decimal point 2. And for the percentages, don't have a pull down but instead simply have 10 buttons, one for each percentage (in fact, nobody tips more than 30%, or for that matter less than 10%, so five or six buttons should be fine). With this, you can then just drop the submit button entirely and simply initiate the calculation with the tap on the appropriate percentage button. The palindrome thing is great. My wife will love that! Cool! Two UI improvement ideas:
1. For the Check field, don’t use the normal iPhone keyboard. Create a purely-javascript numeric keypad with big-ass buttons that are easy to type that populates a text area. No need to use the normal keyboard when all you need is 0-9 and a decimal point
2. And for the percentages, don’t have a pull down but instead simply have 10 buttons, one for each percentage (in fact, nobody tips more than 30%, or for that matter less than 10%, so five or six buttons should be fine). With this, you can then just drop the submit button entirely and simply initiate the calculation with the tap on the appropriate percentage button.

The palindrome thing is great. My wife will love that!

]]> by: Aaron http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11981 Sat, 13 Oct 2007 16:12:26 +0000 http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11981 That's pretty much what it does, but it also makes sure to round up because, on smaller checks (like $10), it was pretty substantially reducing the tip by just reversing the numbers. Now it tests to see if the palindromic tip amount is less than the original tip amount would be and rounds up if it needs to (so you're tipping just slightly in excess of your intended tip amount). I've thought about opening up the Tipr calculator as a web service to other applications, but I haven't found a compelling reason to yet...maybe one day. That’s pretty much what it does, but it also makes sure to round up because, on smaller checks (like $10), it was pretty substantially reducing the tip by just reversing the numbers. Now it tests to see if the palindromic tip amount is less than the original tip amount would be and rounds up if it needs to (so you’re tipping just slightly in excess of your intended tip amount).

I’ve thought about opening up the Tipr calculator as a web service to other applications, but I haven’t found a compelling reason to yet…maybe one day.

]]> by: Troy Goodson http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11980 Fri, 12 Oct 2007 17:03:47 +0000 http://www.easy-reader.net/archives/2007/07/12/new-easy-app-tipr/#comment-11980 I really like Tipr, particularly the palindrome feature. Could you describe the math you used to force the result to be a palindrome? The easiest approach that came to my mind is to compute the accurate tip, observe the digits on the left-hand side, then copy those digits to the right-hand side in reverse order. I really like Tipr, particularly the palindrome feature. Could you describe the math you used to force the result to be a palindrome? The easiest approach that came to my mind is to compute the accurate tip, observe the digits on the left-hand side, then copy those digits to the right-hand side in reverse order.

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