3.3. Construction of Android development environment

发布时间 :2025-10-25 12:24:10 UTC      

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First, you can start Android application development on the following operating systems:

  • Microsoft Windows XP or later.

  • Mac OS X10.5.8 or higher with Intel chips.

  • Includes GNU C library 2. 7 or later Linux systems.

Second, all the tools needed to develop Android applications are free and can be downloaded from the Internet. The following is a list of software you need to start developing Android applications.

  • Java JDK5 or later

  • Android SDK

  • Java Runtime Environment (JRE)

  • Android Studio

  • (optional) Eclipse IDE used by Java developers

  • (optional) Android development tools (ADT) Eclipse plug-in

The last two components are optional and will facilitate the development of Java-based applications if you are working on a Windows machine. So let’s take a look at how to set up the desired environment.

3.3.1. Install the Java Development Kit (JDK)

You can access it from Oracle’s Java website: JDKJava SE下载 Download the latest version of Java. Find the documentation for installing JDK in the downloaded file and follow the given instructions to install and configure the settings. Last set PATH And JAVA_HOME Environment variable to refer to the containing javac And java The directory of, usually, java_install_dir/bin And java_install_dir .

If you are running Windows, install JDK in C:jdk1.6.0_15 and in C:\autoexec.bat Add the following to the file:

set PATH=C:\jdk1.6.0_15\bin;%PATH%
set JAVA_HOME=C:\jdk1.6.0_15

You can also right-click my computer, select Properties = “Advanced” = “Environment variables”, and then update the PATH value by pressing the “OK” button.

On Linux, if SDK is installed in the /usr/local/jdk1.6.0_15 And using C shell, put the following code into the .cshrc Files.

setenv PATH /usr/local/jdk1.6.0_15/bin:$PATH
setenv JAVA_HOME /usr/local/jdk1.6.0_15

If you use the integrated development environment Eclipse, it automatically knows where Java has been installed.

3.3.2. Android IDE

There are many complex and sophisticated techniques for developing Android applications. At present, the main and similar technologies are the following two:

  • Android Studio

  • Eclipse ID

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.