Android software development - Wikipedia. Android software development is the process by which new applications are created for the Android operating system. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available. Official development tools. Currently supported development platforms include computers running Linux (any modern desktop Linux distribution), Mac OS X 1. Windows 7 or later. The SDK also supports older versions of the Android platform in case developers wish to target their applications at older devices. Development tools are downloadable components, so after one has downloaded the latest version and platform, older platforms and tools can also be downloaded for compatibility testing. APK package contains . Limbo PC Emulator is a port of QEMU (Quick Emulator) for Android Devices. It consists of both client and server- side programs that communicate with one another. The ADB is typically accessed through the command- line interface. For the PC fast booting ability, see Instant- on. Fastboot is a diagnostic protocol included with the SDK package used primarily to modify the flashfilesystem via a USB connection from host computer. Running Android L Developer Preview on 64-bit ARM QEMU Did you know the Android emulator is based on QEMU? When the Android SDK was first made available to the world. Porting FreeBSD to Android Emulator. The latest version of Android Emulator is identical to QEMU in that it loads. Emulation = For usage as a substitute. A simulator is an environment which models but an emulator is one that. It can currently emulate lightweight Operating Systems. Tools->Android->SDK Manager. Android Emulator Qemu Serial ConsoleIt requires that the device be started in a boot loader or Secondary Program Loader mode, in which only the most basic hardware initialization is performed. After enabling the protocol on the device itself, it will accept a specific set of commands sent to it via USB using a command line. Some of the most commonly used fastboot commands include: flash . These native libraries can be called from Java code running under the Dalvik VM using the System. Library call, which is part of the standard Android Java classes. Native code can be compiled using GCC or the Intel C++ Compiler on a standard PC. The graphics library that Android uses to arbitrate and control access to this device is called the Skia Graphics Library (SGL), and it has been released under an open source licence. When an Android- powered device is in accessory mode, the connected accessory acts as the USB host (powers the bus and enumerates devices) and the Android- powered device acts as the USB device. Android USB accessories are specifically designed to attach to Android- powered devices and adhere to a simple protocol (Android accessory protocol) that allows them to detect Android- powered devices that support accessory mode. It compiles and installs the created app in the device. App Inventor for Android. It makes android programming much simpler for regular Visual Basic programmers who find coding in Java difficult. Basic. 4android is very active, and there is a strong online community of Basic. Corona SDK. Corona SDK allows software programmers to build mobile applications for i. Phone, i. Pad and Android devices. Corona lets developers build graphic applications by using its integrated Lua language, which is layered on top of C++/Open. GL. The SDK uses a subscription- based purchase model, without requiring any per- application royalties and imposes no branding requirements. Delphi can also be used for creating Android application in the Object Pascal language. The latest release is Delphi 1. Seattle, developed by Embarcadero. Additionally, non- visual components for interaction with the various sensors (like Camera, Gyroscope, GPS and Bluetooth etc.) are available. Other services, such as access to certain keyboard events, are available in a platform- independent manner as well; this is done using interfaces. The compiler is based on the LLVM architecture, and debugging from IDE is possible. The generated apps are based on the NDK, but in contrast to Xamarin, the runtime is compiled into the application itself. Hyper. Next Android Creator. It is based on Hyper. Card that treated software as a stack of cards with only one card being visible at any one time and so is well suited to mobile phone applications that have only one window visible at a time. Hyper. Next Android Creator's main programming language is simply called Hyper. Next and is loosely based on Hypercard's Hyper. Talk language. Hyper. Next is an interpreted English- like language and has many features that allow creation of Android applications. It supports a growing subset of the Android SDK including its own versions of the GUI control types and automatically runs its own background service so apps can continue to run and process information while in the background. Kivy is an open source Python library for developing multitouchapplication software with a natural user interface (NUI) for a wide selection of devices. Kivy provides the possibility of maintaining a single application for numerous operating systems (. Kivy has a custom- built deployment tool for deploying mobile applications called Buildozer, which is available only for Linux. Buildozer is currently alpha software, but is far less cumbersome than older Kivy deployment methods. Applications programmed with Kivy can be submitted to any Android mobile application distribution platform. Lazarus. Qt application development is done in standard C++ and QML, requiring both the Android NDK and SDK. As of version 3. 0, Ruby. Motion supports Android. Ruby. Motion Android apps can call into the entire set of Java Android APIs from Ruby, can use 3rd- party Java libraries, and are statically compiled into machine code. By injection of a small Java shim and JNI the usage of native SDL code is possible. Its features include platform- specific Intelli. Sense, breakpoints, device deployment and emulation. Over 1 million developers use Xamarin's products in more than 1. May 2. 01. 5. Google offered prizes totaling 1. US dollars, distributed between ADC I and ADC II. ADC I accepted submissions from January 2 to April 1. The 5. 0 most promising entries, announced on May 1. Voting for the second round also opened on the same day and ended on November 2. Google announced the top winners of ADC II on November 3. Sweet. Dreams, What the Doodle!? Rooting allows users root access to the operating system, enabling full control of the phone. Rooting has several disadvantages as well, including increased risk of hacking, high chances of bricking, losing warranty, increased virus attack risks, etc. Modified firmwares allow users of older phones to use applications available only on newer releases. Cyanogen. Mod and OMFGB are examples of such firmware. On September 2. 4, 2. Google issued a cease and desist letter. Even though most of Android OS is open source, phones come packaged with closed- source Google applications for functionality such as the Google Play and GPS navigation. Google has asserted that these applications can only be provided through approved distribution channels by licensed distributors. Cyanogen has complied with Google's wishes and is continuing to distribute this mod without the proprietary software. It has provided a method to back up licensed Google applications during the mod's install process and restore them when the process is complete. This prevents compatibility between Java applications written for those platforms and those written for the Android platform. Android only reuses the Java language syntax and semantics, but it does not provide the full class libraries and APIs bundled with Java SE or ME. The early feedback on developing applications for the Android platform was mixed. It's clearly not ready for prime time. The first publicly available application was the Snake game. While developers can use regular consumer devices purchased at retail to test and use their applications, some developers may choose not to use a retail device, preferring an unlocked or no- contract device. A preview release of the Android SDK was released on November 1. On July 1. 5, 2. 00. Android Developer Challenge Team accidentally sent an email to all entrants in the Android Developer Challenge announcing that a new release of the SDK was available in a . The email was intended for winners of the first round of the Android Developer Challenge. The revelation that Google was supplying new SDK releases to some developers and not others (and keeping this arrangement private) led to widely reported frustration within the Android developer community at the time. This release provided an updated and extended API, improved development tools and an updated design for the home screen. Detailed instructions for upgrading are available to those already working with an earlier release. Multiple versions have been released since it was developed . In 2. 01. 7, Android announced they would make a texting app that comes with your phone and is every bit as powerful as dedicated messaging apps. According to technology analyst, David Garrity, the Android Messenger app will be key to the whole equation as it is where users will engage with the new features along with the old SMS and MMS messages. Retrieved February 2, 2. Retrieved April 1. Developer. android. Retrieved March 1. Retrieved September 1. Retrieved September 1. Android Developers Blog. Retrieved March 2. Retrieved December 7, 2. Developer. android. Retrieved March 1. Archived from the original on December 1. Retrieved December 1. Retrieved September 3, 2. Archived from the original on September 1. Retrieved September 4, 2. Developer. android. Retrieved June 1. Retrieved June 1. Archived from the original on December 1. Retrieved December 1. Developer. android. Retrieved October 2, 2. There are two ways to use Go in an Android App. The first is as a library called from Java, the second is to use a restricted set of features but work entirely in Go. This results in a significantly simpler programming environment (and eventually, portability to i. OS), however only a very restricted set of Android APIs are available. The provided interfaces are focused on games. It is expected that the app will draw to the entire screen (via Open. GL, see the go. mobile/gl package), and that none of the platform's screen management infrastructure is exposed. On Android, this means a native app is equivalent to a single Activity (in particular a Native.
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