Android Wear User Interface Essentials
Although we can use the Android SDK to build interfaces for Android Wear, its widgets and views were designed for handheld devices and are often not effective on wearables. A ListView, for instance, should not be used in Android Wear because tapping on a list item requires precise gestures that are difficult to make on a small screen. The design principles for Android Wear (see https://developer.android.com/design/wear/principles.html ) remind us to keep user interactions to a minimum and to rely exclusively on coarse gestures. Thankfully, the wearable UI library contains several widgets and views designed specifically for Android Wear, such as WearableListView, which allows users to select an item from a list using coarse gestures (see Chapter 4).