Android™ How to Program, Second Edition

2.3.5. Configure Launcher Icon Step

When your app is installed on a device, its icon and name appear with all other installed apps in the launcher, which you can access via the icon on your device’s home screen. Android runs on a wide variety of devices that have different screen sizes and resolutions. To ensure that your images look good on all devices, you should provide several versions of each image your app uses. Android can automatically choose the correct image based on various specifications, such as the screen’s resolution (width and height in pixels) or DPI (dots per inch). We discuss these mechanisms starting in Chapter 3. You can find ...