Here you'll find sets of lessons within classes that describe how to accomplish a specific task with code samples you can re-use in your app. Classes are organized into several groups you can see at the top-level of the left navigation. This first group, Getting Started, teaches you the bare essentials for Android app development. If you're a new Android app developer, you should complete each of these classes in order. If you think you might prefer to learn the basics through interactive video training, check out this trailer for a course in the fundamentals of Android development.
FaceDetector.Face. Class Overview A Face contains all the information identifying the location of a face in a bitmap.
Summary Constants public static final float CONFIDENCE_THRESHOLD The minimum confidence factor of good face recognition Constant Value: 0.4 public static final int EULER_X The x-axis Euler angle of a face. Constant Value: 0 (0x00000000) public static final int EULER_Y The y-axis Euler angle of a face. Constant Value: 1 (0x00000001) public static final int EULER_Z The z-axis Euler angle of a face. Constant Value: 2 (0x00000002) Public Methods public float confidence () Returns a confidence factor between 0 and 1. Public float eyesDistance () The Developer's Guide. Android provides a rich application framework that allows you to build innovative apps and games for mobile devices in a Java language environment.
The documents listed in the left navigation provide details about how to build apps using Android's various APIs. If you're new to Android development, it's important that you understand the following fundamental concepts about the Android app framework: Apps provide multiple entry points Android apps are built as a combination of distinct components that can be invoked individually. For instance, an individual activity provides a single screen for a user interface, and a service independently performs work in the background. From one component you can start another component using an intent.
Learn more: Apps adapt to different devices Android provides an adaptive app framework that allows you to provide unique resources for different device configurations. SDK. Before installing Android Studio or the standalone SDK tools, you must agree to the following terms and conditions.
Terms and Conditions This is the Android Software Development Kit License Agreement 1. Introduction 1.1 The Android Software Development Kit (referred to in this License Agreement as the "SDK" and specifically including the Android system files, packaged APIs, and Google APIs add-ons) is licensed to you subject to the terms of this License Agreement. 2. 2.1 In order to use the SDK, you must first agree to this License Agreement. 3. 3.1 Subject to the terms of this License Agreement, Google grants you a limited, worldwide, royalty-free, non-assignable and non-exclusive license to use the SDK solely to develop applications to run on the Android platform. 3.2 You agree that Google or third parties own all legal right, title and interest in and to the SDK, including any Intellectual Property Rights that subsist in the SDK. Installing the SDK.
You should have already downloaded the Android SDK Tools.
(If you downloaded the ADT Bundle, you should instead read Setting Up the ADT Bundle.) The SDK Tools package is not the complete SDK environment. It includes only the core SDK tools, which you can use to download the rest of the SDK packages (such as the latest system image). Getting started on Windows Your download package is an executable file that starts an installer. Android Scripting With Python - Installation and Hello World. Installation and Hello World August 19, 2010 By Paul Ferrill One of the things about the Android platform that appeals to many in the Linux community is the fact that it's based extensively on open source, Oracle lawsuits notwithstanding.
The primary way to write applications for an Android-based phone is still Java. Google provides a Software Development Kit (SDK) with all the documentation, libraries and tools you need. There's even an add-on for the open-source Eclipse Integrated Development Environment (IDE) to help you along. figure 1 Google recently released a new and improved version of what was previously called the Android Scripting Edition (ASE) now renamed to Scripting Layer for Android (SL4A).