![]() ![]() Providers that enable apps to access data from other apps, such as Manages the lifecycle of apps and provides a common navigation back stack Manager that enables all apps to display custom alerts in the status bar Providing access to non-code resources such as localized strings, graphics, System you can use to build an app’s UI, including lists, grids, textīoxes, buttons, and even an embeddable web browser These APIs form the building blocks you need toĬreate Android apps by simplifying the reuse of core, modular systemĬomponents and services, which include the following: ![]() The entire feature-set of the Android OS is available to you through APIs If you are developing an app that requires C or C++ code, you can use theĪndroid NDK to access some of these native platform libraries directly from Support for drawing and manipulating 2D and 3D graphics in your app. ![]() For example, you can accessĪndroid framework’s Java OpenGL API to add ![]() Of some of these native libraries to apps. The Android platform provides Java framework APIs to expose the functionality Many core Android system components and services, such as ART and HAL, areīuilt from native code that requires native libraries written in C and C++. The functionality of the Java programming language, including some Java 8 language features, that the Java If your app runs well on ART, then it can work on Dalvik as well, butĪndroid also includes a set of core runtime libraries that provide most of Prior to Android version 5.0 (API level 21), Dalvik was the Android runtime.
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