Autofill framework
Account creation, login, and credit card transactions take time and are prone to errors. Users can easily get frustrated with apps that require these types of repetitive tasks.
Android 8.0 (API level 26) makes filling out forms, such as login and credit card forms, easier with the introduction of the Autofill Framework. Existing and new apps work with Autofill Framework after the user opts in to autofill.
You can take some steps to optimize how your app works with the framework. For more information, see Autofill Framework Overview.
Downloadable fonts
Android 8.0 (API level 26) and Android Support Library 26 let you request fonts from a provider application instead of bundling fonts into the APK or letting the APK download fonts. This feature reduces your APK size, increases the app installation success rate, and allows multiple apps to share the same font.
For more information about downloading fonts, refer to Downloadable Fonts.
Fonts in XML
Android 8.0 (API level 26) introduces a new feature, Fonts in XML, which lets you use fonts as resources. This means, there is no need to bundle fonts as assets. Fonts are compiled in
Rfile and are automatically available in the system as a resource. You can then access these fonts with the help of a new resource type, font.
The Support Library 26 provides full support to this feature on devices running API versions 14 and higher.
For more information, about using fonts as resources and retrieving system fonts, see Fonts in XML.
Autosizing TextView
Android 8.0 (API level 26) lets you set the size of your text expand or contract automatically based on the size of the TextView. This means, it is much easier to optimize the text size on different screens or with dynamic content. For more information, about autosizing TextView in Android 8.0, see Autosizing TextView.
Adaptive icons
Android 8.0 (API level 26) introduces adaptive launcher icons. Adaptive icons support visual effects, and can display a variety of shapes across different device models. To learn how to create adaptive icons, see the Adaptive Icons guide.
Color management
Android developers of imaging apps can now take advantage of new devices that have a wide-gamut color capable display. To display wide gamut images, apps will need to enable a flag in their manifest (per activity) and load bitmaps with an embedded wide color profile (AdobeRGB, Pro Photo RGB, DCI-P3, etc.).
WebView APIs
Android 8.0 provides several APIs to help you manage the
WebView objects that display web content in your app. These APIs, which improve your app's stability and security, include the following:- Version API
- Google SafeBrowsing API
- Termination Handle API
- Renderer Importance API
To learn more about how to use these APIs, see Managing WebViews.
The
WebView class now includes a Safe Browsing API to enhance the security of web browsing. For more information, see Google Safe Browsing API.Pinning shortcuts and widgets
Android 8.0 (API level 26) introduces in-app pinning of shortcuts and widgets. In your app, you can create pinned shortcuts and widgets for supported launchers, subject to user permission.
For more information, see the Pinning Shortcuts and Widgets feature guide.
Maximum screen aspect ratio
Android 8.0 (API level 26) brings changes to how to configure an app's maximum aspect ratio.
First, Android 8.0 introduces the maxAspectRatio attribute, which you can use to set your app's maximum aspect ratio. In addition, in Android 8.0 and higher, an app's default maximum aspect ratio is the native aspect ratio of the device on which the app is running.
For more information about declaring maximum aspect ratio, see Supporting Multiple Screens.
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