![]() CyanogenMod and OMFGB are examples of such firmware. ![]() Those firmware packages are updated frequently, incorporate elements of Android functionality that haven't yet been officially released within a carrier-sanctioned firmware, and tend to have fewer limitations. Custom firmware allows users of older phones to use applications available only on newer releases. It is also possible to install custom firmware, although the device's boot loader must also be unlocked. Rooting has several disadvantages as well, including increased risk of hacking, high chances of bricking, losing warranty, increased virus attack risks, etc. Rooting allows users root access to the operating system, enabling full control of the phone. This usually involves rooting the device. firmware) with a number of customizations and additional features, such as FLAC lossless audio support and the ability to store downloaded applications on the microSD card. There is a community of open source enthusiasts that build and share Android-based distributions (i.e. See also: List of custom Android distributions Google announced the top winners of ADC II on November 30, with SweetDreams, What the Doodle!? and WaveSecure being nominated the overall winners of the challenge. Voting for the second round also opened on the same day and ended on November 25. The first-round winners of ADC II comprising the top 200 applications were announced on November 5, 2009. The first round of the ADC II closed on October 6, 2009. It ended in early September with the announcement of ten teams that received $275,000 each, and ten teams that received $100,000 each. The 50 most promising entries, announced on May 12, 2008, each received a $25,000 award to further development. ADC I accepted submissions from January 2 to April 14, 2008. Google offered prizes totaling 10 million US dollars, distributed between ADC I and ADC II. The Android Developer Challenge was a competition to find the most innovative application for Android. Main article: Android Developer Challenge External hardware development ĭevelopment tools intended to help an Android device interact with external electronics include IOIO, Android Open Accessory Development Kit, Microbridge, Triggertrap, etc. 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. 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. The Android 3.1 platform (also backported to Android 2.3.4) introduces Android Open Accessory support, which allows external USB hardware (an Android USB accessory) to interact with an Android-powered device in a special "accessory" mode. Code written in C/ C++ can be compiled to ARM, or x86 native code (or their 64-bit variants) using the Android Native Development Kit (NDK).Īndroid Open Accessory Development Kit ![]() Fastboot is a protocol used for flashing filesystems. The Android Debug Bridge (ADB) is a tool to run commands on a connected Android device. The Android SDK Platform Tools are a separately downloadable subset of the full SDK, consisting of command-line tools such as adb and fastboot. The Android software development kit (SDK) includes a comprehensive set of development tools. The official Android app distribution mechanism to end users is Google Play it also allows staged gradual app release, as well as distribution of pre-release app versions to testers. Third party tools, development environments, and language support have also continued to evolve and expand since the initial SDK was released in 2008. Some programming languages and tools allow cross-platform app support (i.e. All non- Java virtual machine (JVM) languages, such as Go, JavaScript, C, C++ or assembly, need the help of JVM language code, that may be supplied by tools, likely with restricted API support. Google states that "Android apps can be written using Kotlin, Java, and C++ languages" using the Android software development kit (SDK), while using other languages is also possible. ![]() The Android stack The Nexus 4, part of the Google Nexus series, a line of "developer-friendly" devices Īndroid software development is the process by which applications are created for devices running the Android operating system. ![]() Process of writing software for Android operating system ![]()
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