This property declares whether your application is willing to support right-to-left (RTL) layouts. In the AndroidManifest.xml file, we need to set the android:supportsRtl property to true. To make sure an Android app is global-ready, we need to take care of a few key configurations both in the Manifest and Gradle file. Now that we're familiar with the basics of the Android i18n & l10n framework, we'll focus on four topics crucial to the development of multilingual Android apps: The relation between Unicode CLDR, ICU, and Android Implementing I18n & L10n in Your Android App 🔗 Resource » Get a brief overview of ICU and CLDR in The Missing Guide to the ICU Message Format. In general terms, Android leverages the ICU library and CLDR project to provide Unicode and other internationalization support. It also provides mechanisms for locale awareness, resource loading, locale matching, fallback, etc. Ideally, you can refer to SDK classes, which provide full, standardized support. Additionally, Android has the localization framework, responsible for localizing the OS itself, as well as all applications. Let's say you're developing an app focused on European financial markets and need to handle all date-time differences, as well as identify both the currency and numbering system of each region. Put another way, Android already provides a set of libraries within its SDK, such as date-time formatting, number formatting, message formatting, currency, measurement units, timezone, collation rules, plural rules, gender rules, transliteration, Bidi layout support, Emoji support, etc. The internationalization framework is part of the wider Android application framework, in which some – if not all – components rely on internationalization. We can now start digging into the details! The Android I18n & L10n Framework This means you don't need to import any external i18n or l10n libraries to enable multi-language support for your Android app. If you're looking for best practices for building a multilingual Android app, the following Android app development tutorial will walk you through all the dos and don'ts.īefore we get it started, let's note that the Android application framework is powered by several i18n and l10n libraries/utilities. In the summer of 2020, it controlled 74.6 percent of the entire mobile OS market.

Android has been the leading mobile OS worldwide for quite a while.

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