Quickly Develop Android Applications for Multiple Languages

Android Applications - Localization Quickly develop applications for multiple languages Karan Deep Geddam Developer Advocate, MOTODEV Motorola Mobility, Inc.

AGENDA Introduction Android Apps – Why Localize? Android Platform Android Support for Localization Sample Application Demo of Sample Application using Eclipse and ADT An Easier Way: MOTODEV Studio Summary Q & A

INTRODUCTION MOTODEV Developer outreach division of Motorola Mobility, Inc. http:// developer.motorola.com Aid developers during app design, development, test, distribution Product details, documentation, articles Technical support and advice through discussion boards Blogs, podcasts Tools to quickly develop applications Get early access to information on Motorola devices

ANDROID APPLICATIONS Android-based devices are activated around the globe Demo of simple application Application downloads Application reach

ANDROID PLATFORM Android is open Apache 2 license Android is extensible Any Android app can be replaced/extended Android is breaking barriers Broad range of Application Programming Interfaces (APIs) and tools Android has a relaxed security model No manufacturer or operator signing Developer declares permissions Android allows native applications Great for porting applications developed in C, Open GL implementations Allows taking full advantage of hardware power

ANDROID PLATFORM Android introduces XML-based UI declarative model Easy to form User Interface (UI) Good model for resolution independence Easy for localization Android allows applications to be written for wide range of displays Includes support for different orientations

ANDROID SUPPORT FOR LOCALIZATION Android allows developers to define application static data separately text strings, layouts, sounds, graphics, etc. Define separate resource sets for different languages/locales Android selects which resources to load based on the device’s locale

RESOURCES & CONFIGURATIONS Android platform support for different features allows for multiple configurations Mobile Country Code (MCC) & Mobile Network Code (MNC) Language and region (ISO 639-1 & ISO 3166-1-alpha-2) Screen size, etc. Android iteratively checks for the configuration qualifier with the best match

LOCALIZATION – DESIGN CONSIDERATIONS Choose a localization strategy Which countries and languages to support? Default language, country Handling missing resources for a particular locale Layout considerations Identify those aspects of app that need localizing text, sounds, currency, dates, times Design UI for culturally different markets Avoid hard-coding of strings, drawables and layouts Use R.string and strings.xml files Use R.drawable and R.layout

LOCALIZATION – CONTENT CONSIDERATIONS Create a full set of default resources Obtain reliable translations of all strings Static text, menu text, button labels, error messages, help text Check for handling of word breaks, punctuation, alphabetical sorting in each supported language Create locale-specific resources Graphics Layouts Sounds etc.

LOCALIZATION – TESTING CONSIDERATIONS Test for every supported locale Test for locales not supported by Device/Emulator Test landscape and portrait modes

SAMPLE APPLICATION Simple Body Mass Index (BMI) Calculator Formulae: Imperial Formula BMI = (Wt in pounds * 703) / (ht in inches) 2 Metric Formula BMI = (Wt in Kgs)/(ht in metres) 2 Obese Over 30 Overweight 25 – 29.9 Normal 18.5 – 24.9 Underweight Below 18.5 Weight Status BMI

DEMO USING ECLIPSE AND ADT Eclipse is a universal platform for integrating development tools Open, extensible architecture based on plug-ins Based on Java http://eclipse.org

DISCLAIMER Except as noted, this source code is licensed as described below. BSD License Copyright © 2010, Motorola, Inc. All rights reserved unless otherwise explicitly indicated. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of Motorola, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Apache License, Version 2 Copyright © 2010, Android Open Source Project. All rights reserved unless otherwise explicitly indicated. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

EASIER: MOTODEV STUDIO MOTODEV Studio for Android A complete development tools package, based on Eclipse An integral component of Motorola’s handset strategy around building the Android ecosystem. Designed to work with all Android Products Free download from MOTODEV, with registration http:// developer.motorola.com/docstools/motodevstudio Supported on MOTODEV discussion boards Version 1.3 available now on Windows, Linux and Mac OS

MOTODEV Studio vs. Eclipse MOTODEV Studio is the Eclipse IDE Eclipse projects open in MOTODEV Studio (and vice versa) Installs the Android plug-ins for Android development Strong emphasis on supporting the full development life cycle Support for Motorola handsets Useful features not found in Eclipse or Android plug-ins Can install as plug-in into existing Eclipse installation

OUT OF THE BOX EXPERIENCE Single download and installation Streamlined download, installation and configuration of Android Software Development Kit(SDK), SDK add-ons and language packs Eclipse and Android SDKs are pre-configured to immediate use MOTODEV Studio perspective provides access to the most necessary functions Go from installation to debugging in the emulator in 20 minutes or less

KEY FEATURES Code Snippets Application Creation Wizards Database Management Handset Emulators Deploy Packages Application Signing Translate your App Screen Capture Advance Debugging Tools Develop with C/C++

Demo Using MOTODEV Studio for Android

SUMMARY Need to localize Android application Features of Android and support for localization Develop and localize a simple Android application Easier way to develop and localize an Android application

Participate in the community Get help, give help Google groups MOTODEV discussion board ( http://community.developer.motorola.com ) Local user groups Where to contribute Google/OHA (OS/Tools) Eclipse Foundation (Tools & SDKs) Pulsar, JDT, CDT, Sequoyah OpenIntents (components)

Questions? Join the conversation at http://community.developer.motorola.com

Quickly Develop Android Applications for Multiple Languages

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Quickly Develop Android Applications for Multiple Languages