Скачать или смотреть How to Easily Change Android Number Locale for Multiple Languages

Discover a simple solution to switch number locales in your Android app effectively, ensuring numbers are displayed correctly in different languages.
---
This video is based on the question https://stackoverflow.com/q/62749444/ asked by the user 'Mohammad Hossein Kalantarian' ( https://stackoverflow.com/u/5515075/ ) and on the answer https://stackoverflow.com/a/62788435/ provided by the user 'Mohammad Hossein Kalantarian' ( https://stackoverflow.com/u/5515075/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Changing android number locale

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Changing Android Number Locale: A Complete Guide

When developing an Android app that targets users from different linguistic backgrounds, it’s essential to personalize the experience to their specific needs. One common issue that arises during localization is ensuring that numbers are displayed correctly according to the selected locale. A developer recently faced a frustrating challenge where switching locales worked fine for everything except for numbers, which remained unchanged. If you've ever been caught in a similar situation, this guide is for you!

Understanding the Locale Issue

In the context of Android development, a locale refers to a specific geographical, political, or cultural region that determines the formatting of text, numbers, and dates. For instance, depending on the locale set, the numeral representation can differ significantly.

For instance:

English (US): 123

Persian: ١٢٣

When switching from English to Persian, while the text and other elements might change as expected, the numbers may continue to display in their original format. This inconsistency can be frustrating, especially when you want a seamless experience for your users.

The Proposed Solution

The good news is that there is a workaround to ensure that numeral representations reflect the chosen locale appropriately. Although it may seem complex, the solution is fairly straightforward once broken down:

Step 1: Create Font Files

You will start by creating multiple font files for your app. These files will help in forcing the numeral appearance based on the selected locale. Here’s how you can set it up:

Navigate to your res directory.

Create a new folder named font if it doesn't already exist.

Within the font folder, create the following font files:

font-en.xml for English

font-ar.xml for Arabic

font-fa.xml for Persian

Step 2: Define Locale-Based Themes

Next, you will need to assign these font files to specific themes that are based on the user’s locale. This is essential for applying the correct font to the text views for each locale.

Create theme files under the values directory. The file names should correspond to the locales:

values-en/themes.xml for English

values-ar/themes.xml for Arabic

values-fa/themes.xml for Persian

Inside each themes.xml file, associate the font with the android:fontFamily attribute. This associates numerical representations with the right numeral fonts.

Example Snippet

Here is what your setup might look like:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Testing

Once your font files and themes are set up correctly, it’s crucial to test how numbers appear when toggling between locales. Make sure to check:

All numbers transition seamlessly from English to Persian/Arabic and vice versa.

No additional formatting issues arise during the transition.

Conclusion

Implementing locale-specific numeral representation in your Android app doesn't have to be a cumbersome process. By creating custom font files and linking them to locale-specific themes, you can easily manage how numbers are displayed according to the user's selected language.

Creating a user-friendly experience that accurately reflects linguistic differences will garner positive feedback from users and improve the overall impression of your application. If you successfully implemented this solution or have suggestions for improvement, feel free to share your experiences in the comments below!