Battery percentages

iOS shows percentages related to battery usage in 2 different places. You can show (if enabled in settings) the percentage of battery power left in the upper right corner, next to the battery icon, something that has been in iOS since the early years.


Since iOS 8, you can also see which apps are causing the largest battery drain during the last 24 hours or 7 days.


I had never thought about it, but this is causing some confusion, as observed by Matt Henderson. In the images above, Tweetbot is not responsible for draining 21 percentage points of the 64 percentage points my battery is already. Instead, Tweetbot caused 21% of the total battery drainage over the last 24 hours. I suppose this number is directly calculated by dividing the battery drainage caused by Tweetbot in the last 24 hours (in some physical unit I don't know because I don't know or remember enough about electricity) by the total amount of battery drainage (in the same unit) in the last 24 hours. I suspect the same goes for the percentages in the "Last 7 Days" overview.

These two percentage numbers (21% for Tweetbot and 34% next to the battery indicator) are not directly related, but it's easy to see that one could think that. Can we come up with a better, less confusing way of showing the same information?

Tomas Verschoren suggests in a tweet to show the actual percentage points of drainage relative to the percentage number next to the battery indicator in the iOS status bar. Something like this:

Image/drawing by @tverschoren

Image/drawing by @tverschoren

While having the advantage of being visually much more clear, it has the disadvantage that it is related to the variable time passed since the last (full) charge. If your phone is (almost) fully charged, all these percentages will be tiny and won't give any useful information. Furthermore how do you calculate the 7 day overview in this way?

I believe that the percentages iOS is showing right now in the 24 hours and 7 days overviews are the right numbers to show, but maybe Apple could show them in a more intuitive / less confusing UI. Perhaps a good UI/UX expert has some interesting insights about this?


It's all in the details

(Updated with a third example.)

One thing i like about Apple is it's attention to detail. I know it's a cliché, but sometimes those little things can be so delightful. Here are two examples i encountered this week thanks to @gruber and @inferis.

In the introduction video of the new retina iMac there is a scene where an "exploded" iMac is shown. Impressive CGI indeed, but that's not the point.

image by Matthew Palmer

image by Matthew Palmer

As Matthew Palmer notes:

But look behind the exploded iMac. Behind the new 'TCON' there's a girl holding her father's hand. Not brought to the centre of the frame, not inflated to be the story of the video, just a consequence of this device being in their home. That's incredible storytelling.

The other example is Apple's implementation of the 'open book' emoji. Turns out, if you magnify it enough, you can read the text of the "Here's to the Crazy Ones" ad.

via @stroughtonsmith, image by @bradchoate

via @stroughtonsmith, image by @bradchoate

Things like that just make my day.


UPDATE 2014-10-19 19:40

A third example just popped up on twitter. During thursday's keynote there was a demo of a video montage software. During the demo, iOS autocorrected "Utah road trip" to "It's road trip", generating lot's of laughs and snarky tweets. Apparently, in the video of the keynote that Apple posted afterwards, the segment is slightly altered.

Attention to details, in every case.

> Marco about recruiters

Being in the app-industry, I come across my share of recruiters. Not one of them has been able to provide some added value to me or the company I work for. And even worse, some of them keep calling/emailing, even after you have politely let them know that you aren't interested.

In a recent post, Marco Arment replies to a particular recruiter's email:

I responded to the Senior Recruiter with my requirements — $10 million a year (plus medical) and relocation of the company to New York — but disclosed that I am probably not qualified for this position since I do not have any experience in Agile.

Read the entire post, it's funny/painful. I agree with his conclusion:

Robert Half Technology does everything that gives tech recruiters a bad name, and everything that makes looking for a tech job so incredibly difficult when you’re young and inexperienced. They do the entire industry a great disservice. Nobody who works there should be proud of what their company does, or be under the illusion that they’re helping anyone.

Hello (Podcast) World

I've been toying with the idea of having my own blog for some time now. Until now I had a few ideas for a first post, but nothing jumped out. That changed yesterday when I had a conversation with a few colleagues.

We started talking about Marco's most recent app, Overcast, and sharing our favorite podcasts. I learned about some new podcasts I hadn't heard about and certainly will try out. It gave me the idea of sharing my favorite podcasts as a first post on this blog. Of course i'm not the first with that idea, but I always enjoy these kinds of posts.

The Regulars

These are podcasts I listen to every week/episode (almost) as soon as they come out.

Occcasional Listens

I don't listen to every episode of these shows, only when they have interesting (to me) guests or subjects.

Retired or On Hiatus

If you enjoy these shows or have other recommendations, please let me know on twitter!