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Android 3.

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A simple approach to developing Android applications using Android Studio Arctic Fox Essentials and Kotlin Key Features The latest Material Design components to build modern user interface designs Step-by-step instruction to building view model-based apps and modern user interface designs using the Jetpack architecture and the latest material design components Coding practice with the Kotlin programming language, including multi-threaded Kotlin code using Coroutines Book Description Android Studio is an Integrated Development Environment based on the JetBrains IntelliJ IDEA. It offers developers a unique platform to design and develop Android apps using various developer tools. Fully updated for Android Studio Arctic Fox, the goal of this book is to teach the skills necessary to develop Android-based applications using the Kotlin programming language. This book begins with an outline of the steps necessary to set up an Android development and testing environment, followed by an introduction to programming in Kotlin which includes data types, control flow, functions, lambdas, and object-oriented programming. An overview of Android Studio covers areas such as tool windows, the code editor, and the layout editor tool. An introduction to the architecture of Android is followed by an in-depth look at the design of Android applications and user interfaces using the Android Studio environment. Early chapters detail Android architecture components such as view models, lifecycle management, Room database access, the Database Inspector, app navigation, live data, and data binding. More advanced topics such as intents are also covered, as are touch screen handling, gesture recognition, and the recording and playback of audio. This edition of the book also covers printing, transitions, cloud-based file storage, and foldable device support. The concepts of material design are also discussed in detail, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars. Other key features of Android Studio Arctic Fox and Android taught in this book include the Layout Editor, the ConstraintLayout and ConstraintSet classes, MotionLayout Editor, view binding, constraint chains, barriers, and direct reply to notifications. Chapters also explore more advanced features of Android Studio such as app links, dynamic delivery, Gradle build configuration, and submitting apps to the Google Play developer c...

Application software --- Development. --- Android (Electronic resource)

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This book will equip you to create high-quality, visually appealing Android 11 apps from scratch with Kotlin. You'll discover a wide range of real-world development challenges faced by developers and explore various techniques to overcome them.

Application software --- Kotlin (Computer program language) --- Android (Electronic resource) --- Development.

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Today, almost everyone carries a mobile device, which is used for various purposes such as communicating with friends or watching videos on an online video sharing platform. However, it requires the presence of a centralised access point, which is not always available. This restriction could be avoided by transitioning to ad hoc wireless communications, where devices would communicate with each other directly. Even so, there are few resources available for the development of ad hoc applications. This master thesis presents the port of a Java mobile ad hoc library to Dart. Therefore, the ported library could be used by the Flutter framework, which allows to develop ad hoc mobile apps regardless of the mobile platforms used. Since the Java mobile ad hoc library is based on a layered architecture, each layer has been individually ported one by one. Another wireless technology, Bluetooth Low Energy, has been explored and used instead of Bluetooth Classic. Despite having a lower data rate, Bluetooth Low Energy is still used to overcome the limitation of Wi-Fi Direct, which is the non-support for multi-hop communications. Then, a new layer has been introduced and implemented, which is responsible for encryption and decryption of data. As a result, a key management system is needed and the on-demand self-organised public key management has been chosen and implemented for end-to-end secure communication. To provide secure communication beyond the end-to-end secure communication, the CRTDH group key agreement has been implemented and provides the possibility to have secure group communications. Study in the literature has shown that the symmetric cryptography ChaCha20 has proven to be very efficient in terms of computation time and energy consumption.

Ad Hoc --- Network --- Cryptography --- Flutter --- Dart --- Bluetooth Low Energy --- Wi-Fi Direct --- AODV --- Android --- Ingénierie, informatique & technologie > Sciences informatiques

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This book presents valuable research results in the challenging field of systems (cyber)security. It is a reprint of the Information (MDPI, Basel) - Special Issue (SI) on Advanced Topics in Systems Safety and Security. The competitive review process of MDPI journals guarantees the quality of the presented concepts and results. The SI comprises high-quality papers focused on cutting-edge research topics in cybersecurity of computer networks and industrial control systems. The contributions presented in this book are mainly the extended versions of selected papers presented at the 7th and the 8th editions of the International Workshop on Systems Safety and Security—IWSSS. These two editions took place in Romania in 2019 and respectively in 2020. In addition to the selected papers from IWSSS, the special issue includes other valuable and relevant contributions. The papers included in this reprint discuss various subjects ranging from cyberattack or criminal activities detection, evaluation of the attacker skills, modeling of the cyber-attacks, and mobile application security evaluation. Given this diversity of topics and the scientific level of papers, we consider this book a valuable reference for researchers in the security and safety of systems.

Technology: general issues --- industrial control safety --- attack quantification --- common vulnerability scoring system --- attack tree --- distribution automation system --- Command and Control Citizen Security Center --- Command and Control Information System (C2IS) --- crime detection --- homeland security --- Android applications --- multi-threading --- operational semantics --- reverse engineering --- Smali+ --- cyber attack --- attacker --- attacker profile --- attacker behaviour --- metrics --- features --- attributes --- intelligent data analysis --- attack forecasting --- comparative review --- alert correlation --- attack evaluation --- attacker skill level --- attack prediction --- attack projection --- early-stage detection --- Bayesian network --- industrial control safety --- attack quantification --- common vulnerability scoring system --- attack tree --- distribution automation system --- Command and Control Citizen Security Center --- Command and Control Information System (C2IS) --- crime detection --- homeland security --- Android applications --- multi-threading --- operational semantics --- reverse engineering --- Smali+ --- cyber attack --- attacker --- attacker profile --- attacker behaviour --- metrics --- features --- attributes --- intelligent data analysis --- attack forecasting --- comparative review --- alert correlation --- attack evaluation --- attacker skill level --- attack prediction --- attack projection --- early-stage detection --- Bayesian network