Android Development Research Articles

How Internet Resources Might Be Helping You Develop Faster but Less Securely

In this experimental study, Android developers using Stack Overflow to solve common security issues were more likely to produce functional--but less secure--code. Given today's time constraints and economic pressures, developers need improved official documentation that's both secure and usable.

Generating API Call Rules from Version History and Stack Overflow Posts

Researchers have shown that related functions can be mined from groupings of functions found in the version history of a system. Our first contribution is to expand this approach to a community of applications and set of similar applications. Android developers use a set of application programming interface (API) calls when creating apps. These API calls are used in similar ways across multiple applications. By clustering co-changing API calls used by 230 Android apps across 12k versions, we are able to predict the API calls that individual app developers will use with an average precision of 75% and recall of 22%. When we make predictions from the same category of app, such as Finance, we attain precision and recall of 81% and 28%, respectively. Our second contribution can be characterized as “programmers who discussed these functions were also interested in these functions.” Informal discussions on Stack Overflow provide a rich source of information about related API calls as developers provide solutions to common problems. By grouping API calls contained in each positively voted answer posts, we are able to create rules that predict the calls that app developers will use in their own apps with an average precision of 66% and recall of 13%. For comparison purposes, we developed a baseline by clustering co-changing API calls for each individual app and generated association rules from them. The baseline predicts API calls used by app developers with a precision and recall of 36% and 23%, respectively.

Bluetooth API Implementation into Android

Bluetooth is a popular method of communication between devices. Many smartphones today have the capability to communicate using Bluetooth. Android developers sometimes need to use Bluetooth in their projects. Android OS provides a powerful API for Bluetooth that allows to simplify scanning the environment for devices, pairing and connecting, data transfer between devices and more. However, utilizing the Bluetooth API can be difficult for first-time users. The objective of this article is to demonstrate the key points of implementing Bluetooth API in the Android application.

From Android Bug Reports to Android Bug Handling Process

Android is an operating system for mobile devices. Its development is led by Google and some other companies. Because of the open-source property of Android, anyone can report a bug through its online bug tracking system. In this paper, we analyze the bug reports of Android operating systems. Specifically, through this study, we would like to answer the following questions regarding Android development and its project management: (1) Could Android bug reports be handled on time? (2) What is the distribution of different maintenance activities initiated by Android bug reports? (3) How long does it take to handle an Android bug report? (4) Are the number of followers and the number of following messages of an Android bug report related to the effort spent on handling this bug report? Through answering these questions, this paper presents a comprehensive study of Android bug reporting and handling process. The information and knowledge obtained through this case study could help us better understand open-source software project, such as its development process and project management.

Free‐range apps

Free‐range apps

BLOOD AND ORGAN FOR PATIENT USING ANDROID APPLICATION

Blood donation is one of the most significant contributions that a person can make towards the society. B.O.P system is a combination of website application and android application made for such noble and great cause. The growing technology in android development has made this possible. The hospitals, blood banks, medical stores, ambulances and users can register through website. And on other hand, the android application provides a way to seeker to search for donors were calling and messaging to friends through app on android kitkat version 4.4.4. This application can also be used by organ donor and seeker where person can register for interested in organ donation .User can get medical stores, hospitals and blood banks location through GPS and calling to them will be present.In B.O.P. there will be use GPS technology that will be used to trace the way to the blood banks and hospitals. The user will get the route to reach the desired location and he does not have to ask manually, therefore time can be saved.

Visible light communication application scenarios based on Android smart devices’ LED lamp

Visible light communication (VLC), which uses visible light to achieve wireless communication just as its name implies, transmits information mainly through the high-speed light flashing of LED or fluorescent lamp. And it has many advantages, such as high security, high energy efficiency, and long life expectancy. In recent years, the application of smart devices based on the Android system is becoming more and more abundant. If the VLC is combined with smart devices based on Android system, we will have a wide range of application scenarios in the future. In this paper, by using LED lamps as the transmission side, two methods of different Android mechanisms to make the flicker in different data rate are presented. By optimizing the code framework, using new function in the hardware driver layer, the operating efficiency can be increased greatly, and the maximum data rate of 5000 bps on the Android development board is achieved. In the meantime, due to the LED's features and experiments' result, we give two flowcharts of application scenarios: the mobile payment and ships communication.

Automatic image resizing in android application development

Smartphones are produced in various sizes, resolutions, and designs, to address market expansion and customer demand. In the current smartphone market, developers of Android smartphone applications face difficulties when creating programs with varying specifications. This study proposes automatic image resizing to reduce the time and effort required for Android application development.

Case Study on Efficient Android Programming Education using Multi Android Development Tools

The purpose of this study is to propose education model using Eclipse ADT with android SDK and App Inventor together for efficient teaching for developing Android application. Android is an operating system for mobile devices, one of the most used in the world today. Android is now used in more devices, including smart phones and more users than any other mobile operating system. Android SDK is required to Android app developer, but students are difficult for Android SDK because Android SDK requires students the prior knowledge of Java programming language and Android SDK class library. MIT App Inventor is a web based tool, which allows users with no programming experience to develop mobile apps. The Android programming education model designed in this study was applied to a course for mobile apps. This model using multi Android development tools have shown to be more efficient compared to education using Android SDK only

Design of a Microlecture Mobile Learning System Based on Smartphone and Web Platforms

This paper first analyzes the concept and features of microlecture, mobile learning, and ubiquitous learning, then presents the combination of microlecture and mobile learning, to propose a novel way of micro-learning through mobile terminals. Details are presented of a microlecture mobile learning system (MMLS) that can support multiplatforms, including PC terminals and smartphones. The system combines intelligent push, speech recognition, video annotation, Lucene full-text search, clustering analysis, Android development, and other technologies. The platform allows learners to access microlecture videos and other high-quality microlecture resources wherever and whenever they like, in whatever time intervals they have available. Teachers can obtain statistical analysis results of the microlecture in MMLS to provide teaching/learning feedback and an effective communication platform. MMLS promotes the development of microlecture and mobile learning. A statistical analysis of the implementation of the system shows that students using MMLS to assist their learning had improved results on their final exams and gave a higher evaluation of the curriculum than those who did not. The advantages and disadvantages of MMLS are also analyzed.

Blending an Android development course with software engineering concepts

The tremendous popularity of mobile computing and Android in particular has attracted millions of developers who see opportunities for building their own start-ups. As a consequence Computer Science students express an increasing interest into the related technology of Java development for Android applications. Android projects are complex by nature and relatively large software products while their development calls for the application of established software engineering practices and tools. However, most software engineering courses focus on `conventional' software development for desktop or web applications. In this paper we report on the design, implementation and assessment of a novel short course aiming at bridging the gap between software engineering and Android development. The goal is to demonstrate the need for applying software engineering principles on Android development as well as to emphasize that writing software for mobile devices should be regarded as an equally serious programming activity. The proposed course covers design principles, patterns, metrics, refactorings and collaborative software development. The course has been delivered to three groups of undergraduate and postgraduate students at two different institutes. The course has been evaluated: a) by performing a student satisfaction survey, b) through summative assessment of students' performance, c) by investigating whether the proposed course modified the students' career interests and d) by employing assessment by peers based on rubrics. The results indicate that such a short course is capable of increasing student's interest on Android development as well as their awareness of the importance of software engineering concepts on mobile application software development.

Mining usage patterns for the Android API

5 API methods are not used alone, but in groups and following some patterns. However, despite being a key information for API users, most usage patterns are not explicitly described in official API documents. In this article, we report a study to evaluate the feasibility of automatically enriching API documents with information on usage patterns. For this purpose, we extract and analyze 1,952 usage patterns, from a set of 396 Android applications. As part of our findings, we report that the Android API has many undocumented and non-trivial usage patterns, which can be inferred using association rule mining algorithms. We also describe a field study where a version of the original Android documentation was instrumented with the extracted usage patterns and source code examples. During 17 months, this documentation received 77,863 visits from real Android developers. . 6

Smartphone Energy Drain in the Wild

The limited battery life of modern smartphones remains a leading factor adversely affecting the mobile experience of millions of smartphone users. In order to extend battery life, it is critical to understand where and how is energy drain happening on users' phones under normal usage, for example, in a one-day cycle. In this paper, we conduct the first extensive measurement and modeling of energy drain of 1520 smartphone in the wild. We make two primary contributions. First, we develop a hybrid power model that integrates utilization-based models and FSM-based models for different phone components with a novel technique that estimates the triggers for the FSM-based network power model based on network utilization. Second, through analyzing traces collected on 1520 Galaxy S3 and S4 devices in the wild, we present detailed analysis of where the CPU time and energy are spent across the 1520 devices, inside the 800 apps, as well as along several evolution dimensions, including hardware, Android, cellular, and app updates. Our findings of smartphone energy drain in the wild have significant implications to the various key players of the Android phone eco-system, including phone vendors Samsung , Android developers, app developers, and ultimately millions of smartphone users, towards the common goal of extending smartphone battery life and improving the user mobile experience.

The Impact of API Change- and Fault-Proneness on the User Ratings of Android Apps

The mobile apps market is one of the fastest growing areas in the information technology. In digging their market share, developers must pay attention to building robust and reliable apps. In fact, users easily get frustrated by repeated failures, crashes, and other bugs; hence, they abandon some apps in favor of their competition. In this paper we investigate how the fault- and change-proneness of APIs used by Android apps relates to their success estimated as the average rating provided by the users to those apps. First, in a study conducted on 5,848 (free) apps, we analyzed how the ratings that an app had received correlated with the fault- and change-proneness of the APIs such app relied upon. After that, we surveyed 45 professional Android developers to assess (i) to what extent developers experienced problems when using APIs, and (ii) how much they felt these problems could be the cause for unfavorable user ratings. The results of our studies indicate that apps having high user ratings use APIs that are less fault- and change-prone than the APIs used by low rated apps. Also, most of the interviewed Android developers observed, in their development experience, a direct relationship between problems experienced with the adopted APIs and the users’ ratings that their apps received.

Windows Based Graphical Objective C IDE

On the growing demand of mobile application development, the learning and knowledge of the basic languages used in the development becomes a necessity. For the Android development, we need the basics of Java technology, for Windows phone application, the Dot Net and C# technology is promoted and for iOS development, the basics of Objective C is the main prerequisite. For most of the Windows based system users, it becomes difficult to practice the Objective C programs, since Windows provide no specific tool for it. Based upon this issue, by learning and doing a tremendous research on the working of different available Objective C IDEs and the methodologies used by them, we have come up with a Windows based User-friendly Objective C IDE that provides a cross platform advantage with graphical features.

Attendances System for College Students

Android has now been considered one of the top most platforms for mobile app development. It has gained remarkable popularity across the globe in the field of mobile applications. The key reason behind this popularity is the convenience offered by this platform to design stylish and wonderful utility applications. Since mobile devices have become more and more powerful and distributive, mobile computing has greatly changed our daily life. As one of the most popular mobile operating systems, Android provides the tools and API for Android developer to develop Android applications. In this work the aims is to build an Android application on the phone to help students for knowing their absences were easily and quickly using the android language (eclipse-IDE) where the application has been linked to database (MySQL) by using (json language) and send it to database as json object to add and receive information and comparing whether the student has absence or not. We will create a Web Service in PHP, read from the MySQL database, and let the Android connect with the Web Service and send data, and the Web Service will save it and another Web Service will read data from MySQL and send it to the Android app. This paper propse an new program for student attendances.

Evaluation of Augmented Reality Frameworks for Android Development

Augmented Reality (AR) is the evolution of the concept of Virtual Reality (VR). Its goal is to enhance a person's perception of the surrounding world. AR is a fast growing state of the art technology and a variety of implementation tools thereof exist today. Due to the heterogeneity of available technologies, the choice of the appropriate framework for a mobile application is difficult to make. These frameworks implement different tracking techniques and have to provide support to various constraints. This publication aims to point out that the choice of the appropriate framework depends on the context of the app to be developed. As expected, it is accurate that no framework is entirely the best, but rather that each exhibits strong and weak points. Our results demonstrate that given a set of constraints, one framework can outperform others. We anticipate our research to be the starting point for testing of other frameworks, given various constraints. The frameworks evaluated here are open-source or have been purchased under Academic License.

A Chinese Small Vocabulary Offline Speech Recognition System Based on Pocketsphinx in Android Platform

This paper describes a Chinese small-vocabulary offline speech recognition system based on PocketSphinx which acoustic models are regenerated by improving the existing models of Sphinx and language model is generated by LMTool online tool. And then build an offline speech recognition system which could run on the Android smartphone in Android development environment in Linux system. The experiment results show that the system used for recognizing the voice commands for cell phone has good recognition performance.

PENGEMBANGAN MEDIA BELAJAR PUPUH BERBASIS ANDROID

Pupuh is one of the four types of songs that exist in Bali. Pupuh is used to express advices, stories of heroism and feelings that usually shown on dramatari which is developedin Bali such as drama gong, arja and Bondres. This Media Belajar Pupuh Berbasis Android is a learning media pupuh with an Android device. This research aims to design andimplement application design Media Belajar Pupuh Berbasis Android.Development of the Media Belajar Pupuh Berbasis Android is using the software development life cycle SDLC (Software Development Life Cycle) with the waterfall model.Features in this application are intended as a learning pupuh for users with an Androiddevice. The features of this application are the theory of pupuh, uger-uger of pupuh, tunings of pupuh, songs of pupuh and recordings of the user.The result of this research is the design and implementation of the Media BelajarPupuh Berbasis Android that has been successfully carried out. The design is done by using a functional model of the UML (Unified Modeling Language). Implemented in Javaprogramming language using the Eclipse editor and ADT (Android Development Tools) plug- ins, and also using AndEngine as additional libraries. The entire functional requirementshave been successfully implemented in accordance with the design.

PENGEMBANGAN MEDIA BELAJAR PUPUH BERBASIS ANDROID

Pupuh is one of the four types of songs that exist in Bali. Pupuh is used to express advices, stories of heroism and feelings that usually shown on dramatari which is developedin Bali such as drama gong, arja and Bondres. This Media Belajar Pupuh Berbasis Android is a learning media pupuh with an Android device. This research aims to design andimplement application design Media Belajar Pupuh Berbasis Android.Development of the Media Belajar Pupuh Berbasis Android is using the software development life cycle SDLC (Software Development Life Cycle) with the waterfall model.Features in this application are intended as a learning pupuh for users with an Androiddevice. The features of this application are the theory of pupuh, uger-uger of pupuh, tunings of pupuh, songs of pupuh and recordings of the user.The result of this research is the design and implementation of the Media BelajarPupuh Berbasis Android that has been successfully carried out. The design is done by using a functional model of the UML (Unified Modeling Language). Implemented in Javaprogramming language using the Eclipse editor and ADT (Android Development Tools) plug- ins, and also using AndEngine as additional libraries. The entire functional requirementshave been successfully implemented in accordance with the design.