Three things I didn’t realize until reading the Apple HIG-Feng

  1. The Font

I have thought about the font size and image size of the iOS system. In my idea, developer have to and must to follow the default setting of the ios system, which means we need to use the same typeface. But in this sentence, “. iOS system fonts automatically adjust letter spacing and line height so that text is easy to read and looks great at every size. Whether you use system or custom fonts, be sure to adopt Dynamic Type so your app can respond when the user chooses a different text size”, it claim there is a possibility to customize the fonts.

  1. Start and Stop.

Before I read this documentation, I didn’t think about how important it is to delay a login page. I do use some apps which allow users to use their function before login or sign in, this strategy really change how I feel about this app.

  1. Always preserved user’s work unless they cancel or delete it.

This design is not only applied in iphone app, but also the web app, and the web site (especially the shopping website). They always save the people’s work or chosen products.