MOTODEV App Validator

Improving Enterprise ApplicationQuality with MOTODEV App ValidatorEric Cloninger (ericc@motorola.com)Product Line Manager, Development Tools #appvalMOTOROLA and the Stylized M Logo are trademarks or registered trademarks of Motorola Trademark Holdings, LLC. All othertrademarks are the property of their respective owners. © 2012 Motorola Mobility, Inc. All rights reserved. moto.ly/appvalint

Improving Enterprise Application Quality with MOTODEV App ValidatorAgenda• Asset management in an Android project• The Matrix of Pain• The MOTODEV App Validator• Extending the MOTODEV App Validator• Q&A © 2012 Motorola Mobility, Inc. #appval 2

Improving Enterprise Application Quality with MOTODEV App ValidatorAsset Management in Android• An Android app (“APK”, aka “application package”) is a container for both code and non-code assets• An app can have multiple copies of the same asset• Applies to images, menus, strings, layouts, sounds, icons, etc.• The Android runtime has an algorithm that determines the best resource to use based on location, carrier, language, display, screen orientation, dock status, keyboard availability, etc. © 2012 Motorola Mobility, Inc. #appval 3

Improving Enterprise Application Quality with MOTODEV App ValidatorStatisticshttp://bit.ly/fxFY7P Platform Codename API Level Distribution Android 1.5 Cupcake 3 0.6% Android 1.6 Donut 4 1.1% Android 2.1 Eclair 7 8.5% Android 2.2 Froyo 8 30.4% Android 2.3 - Gingerbread 9 0.6% Android 2.3.2 Android 2.3.3 - 10 54.9% Android 2.3.7 Android 3.0 Honeycomb 11 0.1% Android 3.1 12 1.5% Android 3.2 13 1.7% Android 4.0 - Ice Cream 14 0.3%Data collected during a 14-day period Android 4.0.2 Sandwich 15 0.3%ending on January 3, 2012 Android 4.0.3 © 2012 Motorola Mobility, Inc. #appval 8

Improving Enterprise Application Quality with MOTODEV App ValidatorStatistics, cont’d http://bit.ly/AfeZHn ldpi mdpi hdpi xhdpi small 1.3% 2.9% normal 1.0% 17.5% 71% large 0.1% 3.1% xlarge 3.1%Data collected during a 14-day periodending on January 3, 2012 © 2012 Motorola Mobility, Inc. #appval 9

Improving Enterprise Application Quality with MOTODEV App ValidatorStatic Analysis• Solves a different problem set than runtime tests• Finds “Matrix of Pain” issues that runtime tests don‟t• Catches errors early in the development cycle• Automatable / scriptable systems © 2012 Motorola Mobility, Inc. #appval 11

MOTODEV App Validator

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV App Validator• Free static analysis tool that runs on Mac, Windows, and Linux• Available as Eclipse plugins, a stand-alone command line tool, and as a drag-and-drop web app• Operates on .APK files as well as contents of Eclipse projects• Highly customizable for your needs• Generates output as text, CSV, or XML for easy integration into existing development processes• Download at http://moto.ly/mdsdl © 2012 Motorola Mobility, Inc. #appval 13

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV App Validator – What it does• Determines if an app requests too few or too many permissions• Reports missing localized or default strings and missing drawable resources• Discovers duplicate IDs in layouts• Code problems (e.g. open database cursors that aren‟t closed)• 35 unique conditions tested, described at the MOTODEV site – http://moto.ly/appvaldocs – More checkers and conditions added with each release © 2012 Motorola Mobility, Inc. #appval 14

Demo App Validator &MOTODEV Studio

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV App Validator – How it works• Decomposes an Android application into its “file system”• Examines the app manifest for improper values• Decompiles Java code in the APK and examines code patterns• Compares values of Android APIs parameters against the contents of resource directories• Compares an app against device specifications to find issues that might occur on certain devices © 2012 Motorola Mobility, Inc. #appval 16

Improving Enterprise Application Quality with MOTODEV App ValidatorApp Validator vs. lint• App Validator is a pre-flighting tool, meant to be your “last set of eyes” before you deploy your app• lint is an improvement on the existing SDK tool called „layoutopt‟, which is intended for iterative improvement of your user interface• Use lint during layout, design and coding• Use App Validator while coding and before deploying to users or the Android Market © 2012 Motorola Mobility, Inc. #appval 17

Demo App Validator onthe command line

Improving Enterprise Application Quality with MOTODEV App ValidatorCommand LineUsage:APPVALIDATOR [OPTION[PRM]]...APPVALIDATOR [OPTION[PRM]]... -input [FILE] [OPTION[PRM]]...Options:-sdk SDKPATH Specify an Android SDK to be used during validation instead of the default one-c CHK [PRM] Specify a checker to be run by supplying its ID (CHK) and specific checker parameters (PRM).-dc CHK[.CND] Specify a checker or condition that should not run by supplying its ID. The other checkers will run normally.-d [DEV] Specify a device that will be checked against your application for incompatibilities. Use none to skip.-wx [CHK[.CND]] Increases the warning level for all or for a particular set of checkers or conditions specified by CHK and CND IDs-xw [CHK[.CND]] Decreases warning level for all or for the particular set of checkers or conditions specified by CHK and CND IDs-output [TYPE] Format output to the specified type. TYPE can be [text (default) | csv | xml].-limit [COUNT] Limit the number of output entries.-list-checkers List available checkers-list-devices List available devices-describe-device [DEV] Show information about a specific device-help [CHK] See information about general usage or about a checker by specifying its ID (CHK)-vN Specify verbosity level, where N is one of: 0 (default, most succinct), 1, 2 (most verbose)-wN Specify warning level, where N is one of: 0 (most severe warnings only), 1, 2 (default), 3, 4 (all warnings) © 2012 Motorola Mobility, Inc. #appval 19

Improving Enterprise Application Quality with MOTODEV App ValidatorCSV outputappvalidator -input demo.apk -w4 output csv > foo.csvtype checker_id condition description file suggestionWARNING codeChecker openedCurso The cursor c at comdemoapp Make sure that all cursors are closed to rs "com.demoapp.MainActivity.onCreate" does MainActivity.jav avoid problems during app execution. not seem to be closed. 1 instance(s) using this a variable were not closed."WARNING layout missingId The following ID was not defined in your layout reslayout- Add the missing ID to the layout file. file: myText"." xlargemain.xmlWARNING missingDrawable missingDraw Folder drawable-xhdpi" does not exist." res Create the drawable-xhdpi" folder inside Resources ableFolders the "res" folder and add the appropriate drawables to it." © 2012 Motorola Mobility, Inc. #appval 20

DemoApp Validator @ MOTODEV moto.ly/webvalidator

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV Testing Programs• Online App Validator – http://moto.ly/webvalidator• MOTOREADY App Testing for Motorola XOOM™ • http://developer.motorola.com/testing/motoready/ © 2012 Motorola Mobility, Inc. #appval 22

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV App Validator SDK• Extend the App Validator to add checkers and conditons that meet your own criteria• Download the SDK at http://moto.ly/mdsdl• Install guide at http://moto.ly/appvalsdkinstall• Installs into MOTODEV Studio or Eclipse (requires PDE)• Supported on the MOTODEV discussion boards – http://moto.ly/studiodb © 2012 Motorola Mobility, Inc. #appval 23

Improving Enterprise Application Quality with MOTODEV App ValidatorMOTODEV App Validator SDK• Context-aware API reference while editing and offline HTML Javadoc documentation• Requires Eclipse and Java experience • Implement one method to get started • Operates on APKs and Eclipse projects• Two samples for developers to begin their own work • findviewbyid – Search for calls to findViewById() that are within loops • androidlabel – Ensures that android:label in AndroidManifest.xml has a specific value or pattern © 2012 Motorola Mobility, Inc. #appval 24

Improving Enterprise Application Quality with MOTODEV App ValidatorThank you• Slides available at slideshare.net/motodev later today• “Office hours” with the MOTODEV Tools team and developer support members, February 15, 1:00 PM PT (21:00 UTC)• Follow-up email, including a link to the recording, to registered attendees• Q&A © 2012 Motorola Mobility, Inc. #appval 25

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MOTODEV App Validator

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