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6

Android has an official guide from Google. And iTunes too So, to avoid Copyrights issues and all kind of related stuff I suggest to follow their guidelines.


3

This page on the developer.android.com website shows that Lollipop now has a marketshare of 5.4% over all Android versions. According to this page, material design will work on Android 5.0 (API 21) or higher only. That said, it would not be smart to focus on such a small group only. What you can do is check the current API level of the user's phone, and ...


1

44px is the minimum recommended size for tap areas. https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/ContentViews.html As with all UI objects that users might want to tap, ensure that the minimum target area for each item in a collection view is 44 x 44 points. 16px is a default margin, from the screen edge, ...


1

The Android docs provide some guideance around toasts, notifications and dialogs. The main difference between toasts and dialogs is that toasts provide feedback unobtrusively whereas dialogs demand an immediate response. Toasts A toast provides simple feedback about an operation in a small popup. It only fills the amount of space required for the ...


1

Installing 4 apps to do 1 thing is bad UX App Overload is a real thing and people are more hesitant to put things on their phone in general. If you require multiple app downloads before the user can complete their task at hand then many people won't bother or even worse may download the core app only to find out it doesn't work without 3 other apps at ...


1

Material Design has no flat rectangular buttons The Material Design guidelines specify that rectangular colored need to be raised to prevent exactly the kind of confusion you are encountering. Otherwise it's not clear to the user that the button is an interactive element (can be pressed). You can add a drop shadow to make the buttons raised and compliant ...


1

If you're using Material, then the answer is in Material itself. See http://www.google.com/design/spec/components/list-controls.html#list-controls-types-of-list-controls and specifically the "Expand/collapse" section. Also, as we're using Material, remember to set a Primary color and an accent color, then build your palette by adding white or black to that ...


1

If the default is to show the contextual help and then you give the user the option to turn the help off then the first option "put this settings in the navigation drawer, with a simple on/off switch" should work very well. The user was aware that there was contextual help and turned it off. If you want to go one extra step, after the user selects "turn off ...


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You shouldn't ever force your users to do something. As soon as you start doing that, you will begin to quickly lose users. Users need to be given an incentive to turn it on and keep it on. If your users don't feel like they are getting a good enough deal from what your application has to offer, they will not keep it on. The best approach would be to softly ...



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