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I'm trying to set alarm times for a single object with two views; one for quick presets, another with any number of custom times. The two buttons at the top (Presets | Custom) switch between these two methods for setting the alarm.

Preset alarms

On the first view (Preset, shown above) you select how often the alarm sounds, and one time. Changing the time in the bottom picker immediately adjusts the times displayed on the top table.

Custom alarms

When you go to the custom view (Above), it's empty. The plus sign on the top right adds the currently shown time in the bottom picker to the list of alarms.

Alarm summary

Once you press back on the navigation controller, the alarm times currently displayed are saved, and you see the summary screen for the alarm (Above).

The main problem I am having is I feel like there is a disconnection between the two views. I like that you can easily switch between Presets and Custom with one press, but there are scenarios that I feel will create user frustration.

For example, if you start on the Preset and choose once per day, then switch to Custom (which starts blank), then hit Back you will have saved no times (since the active screen when you hit Back is blank). This does not seem friendly to the user. Similarly, if you are on the Custom view and spend time adding several times, then go to Preset before hitting back, again the user's work is lost.

One partial solution to the above is to have the Presets screen populate the Custom screen. So if you choose 4x a day then go to Custom, the four times from the preset would populate the Custom screen. Unfortunately this method does not work in reverse, as there is currently no way to represent arbitrary times on the preset screen. In addition, if I set some Custom times, go to Presets, change my mind and return to Custom, the work I did in Custom has now been replaced by my selected presets. So sometimes it seems like it would be better to keep the views disjoint.

These are the scenarios I'm going through. Does anyone have suggestions on how I can get these two views to work well together, or other suggestions on improving this interface?

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That is a big improvement to your question. It could be clearer, but I now understand what you are asking. The important part is that you have two different methods for setting the date (views), and if you have one view affect the other then you could clobber settings. This is compunded because the iOS UI convention does not allow 'submit' buttons; all setting changes are immediate. –  Myrddin Emrys Apr 26 '12 at 7:45

2 Answers 2

up vote 1 down vote accepted

What I would recommend is combining the interfaces. Make it so that the Preset times simply add a set of times to the Custom list, which you can then remove and modify. This will combine the two screens into one, which should simplify the result.

mockup

download bmml source – Wireframes created with Balsamiq Mockups

In this alteration, the picker time is at the bottom and the list above, but there is only one interface. The interface is mostly like the Custom screen you proposed, but you can add one item as well as adding a shotgun spread of times using the other buttons. With a single screen you eliminate the split between two different interfaces for the same task.

The downsides of this method are that the list becomes even more cramped than before, and the +Two, +Three, and +Four buttons have nowhere to display what times they will add so you can only find out by experimenting.

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I'm trying to understand your answer a bit better. With + pressed, it adds a row. When Two is pressed, does it just go back down to 2 rows or are two rows added to what was previously there? –  Crystal Apr 27 '12 at 1:22
    
It adds two items, the same two that would have been used in the previous 'Preset' view. –  Myrddin Emrys Apr 27 '12 at 1:38
    
I find the one-two-three buttons not discoverable and actually hard to explain. –  Kris Van Bael May 3 '12 at 5:38
    
I agree that it is not very discoverable. I think part of the issue is that I'm not sure why someone would choose to add 'sets' of times. Without a good understanding of the use case, it's hard to give good names. Better button names would alleviate the confusion. –  Myrddin Emrys May 3 '12 at 7:56

I find several things unoptimal wih your design:

  1. The use of a segment button in the title bar as a mean of data entry. I would expect such controls only for navigation.

  2. Orphan spinners: on iOS a spinner is like the keyboard. It is to edit a line that is clearly highlighted in the top half. Your spinners are not linked 1 to 1 with a field in the top half.

I would make more use of a grouped list. The first item is the 'first alarm'. Then follows a line with a toggle to switch between your two modes. Depending on that toggle, the next lines are different.

E.g. For preset (pardon my ASCII art)

  • First alarm: 9:17. (when selected, shows the spinners)
  • Regular intervals [ On ]. (a toggle)
  • repeats: 3 > (when tapped, pushes a new list with all preset repeat options)

    Alarm times: 9:17. 2:17. 7:17. (this is footer comment below the grouped list)

E.g for custom:

  • First alarm: 9:17
  • Regular intervals [ Off ]
  • Second alarm: 10:23 (can be edited just like first alarm)
  • Third alarm: -:- (tap to add another alarm)
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