Build an Android Development Environment

Android2.1 The system is open-source and easy to use, but there are also many disadvantages. For example, native cannot install programs on the SD card, there is no built-in File Manager, and proxy cannot be set for wifi access, video calls cannot be used and versions are updated too quickly, leading to problems in software compatibility. However, compared with the first three generations of Apple systems, video calls do not have many low-level disadvantages. Now let's take a look at how to build Android 2.1 on the Windows platformDevelopment Environment.

The software package to be downloaded in advance is as follows:

1. JDK 1.6 +

2. Android sdks 1.6

3. Android SDK Setup

4. Eclipse IDE for Java Developers

When you see this, you may be anxious to ask: "Isn't it necessary to build an Android 2.1 Development Environment? How can I download Android SDK 1.6 instead of 2.1 ?"

That's right. It's about how to build the Android 2.1 development environment. However, after several attempts, I found that there was a problem with directly downloading and installing Android SDK 2.0 and 2.1. What's the problem? To put it simply, the two latest sdkpackages do not contain the adb.exe file. Therefore, you cannot specify the Android SDK location in Eclipse, which means you cannot use Eclipse for development ). Therefore, this has taken the path of saving the nation. Maybe, as my own attempt has proved, Android SDK 2.0 and 2.1 are actually upgrade packages, rather than the complete development packages. After comparison, the sizes of Android SDK 2.0 and 2.1 are 77.3 MB and 1.6 MB respectively, while the size of Android SDK 248 is MB, which is quite different, this seems to prove my judgment. However, in any case, download Android SDK 1.6 first, and then download and update Android SDK 2.0 and 2.1 through the ADTAndroid Developer Tools and Android Developer Tools) and Android SDK Setup program, yes.

First, access: http://java.sun.com/javase/downloads/widget/jdk6.jsp
Download Java SE Development Kit 6u20jdk-6u20-windows-i586.exe)
The file size is 76.67 MB.

Second, access: http://dl.google.com/android/archives/android-sdk-windows-1.6_r1.zip
Download Android SDK 1.6android-sdk-windows-1.6_r1.zip)
The file size is 248 MB.

Then, access: http://dl.google.com/android/android-sdk_r04-windows.zip
Download Android SDK Setupandroid-sdk_r04-windows.zip)
The file size is 22 MB.

Finally, access http://www.eclipse.org/downloads/
Download Eclipse IDE for Java Developerseclipse-java-galileo-SR2-win32.zip)
The file size is 92.7 MB.

After the download is complete, start installation and configuration.

Step 1: install and configure JDK.

After the download, run jdk-6u20-windows-i586.exe in double-click mode. If you select to install jdk-6u20-windows-i586.exe in the C: \ Java \ jdk1.6.0 _ 20 directory, there is no problem when installing it in the default path ). After installation, configure the environment variables. The procedure is as follows:

(1) set the JAVA path

Right-click "my computer", select "properties", open the "System Properties" dialog box, click the "advanced" tab, and click "environment variables, in the displayed dialog box, click "new" under "system variables", enter JAVA_HOME in "variable name", and enter C in "variable value: \ Java \ jdk1.6.0 _ 20, click "OK ".

(2) set the CLASS path

Create a system variable, enter CLASSPATH in the variable name, and enter.; % JAVA_HOME % \ lib \ tools. jar in the variable value.
Note: At the beginning, "." in ";" indicates the current path, and "Semicolon" indicates the path separator. The following % JAVA_HOME % references the previously created JAVA installation path.

(3) set the PATH

Generally, PATH variables are available. Select "edit" and add "% JAVA_HOME % \ bin" after "variable value". % JAVA_HOME % \ jre \ bin, pay attention to the semicolon.

In this way, JDK is installed. "Start-> Run", Enter cmd, and enter "java-version" in the command line prompt. the java version "1.6.0 _ 20" information should be displayed. JDK is successfully installed.

Step 2: decompress and configure Android SDK 1.6

It is okay to decompress the downloaded android-sdk-windows-1.6_r1.zip to the C: \ android-sdk-windows-1.6_r1 directory ). Then, configure the environment variable. The procedure is as follows:

(1) set the Android path

Repeat Step 1 (1), create a new "system variable", enter Android_Home in "variable name" in case no problem), and add C: \ android-sdk-windows-1.6_r1 in "variable value.

(2) set the PATH

"Edit" PATH variable, and add; % Android_Home % \ tools after "variable value". Note the semicolon before.

In this way, Android SDK 1.6 is installed. "Start-> Run", Enter cmd, and enter "android-help" in the command line prompt. The help information should be displayed. Android SDK 1.6 is successfully installed.

Step 3: Decompress Eclipse, associate Android SDK, and install ADT

Decompress the downloaded eclipse-java-galileo-sr2-win32.zip file to C: \ eclipse. then, double-click eclipse.exe to start Eclipse.

Install ADT: menu "Help-> Install New Software ...", Open the Install dialog box and click Add... Add Site), enter ADT in Name, and enter https://dl-ssl.google.com/android/eclipse/in Location /. Then download and install ADT.

Associate with Adnroid SDK: menu "Windows-> Preferences". Open the Preferences dialog box and click Android. In the Android Reference on the right, Click Browse… on the right of the SDK Location text box... Button, locate C: \ android-sdk-windows-1.6_r1, OK ".

If you do not upgrade the Android SDK, 1.5 or 1.6 will also work)
Step 4: Decompress Android SDK Setup and download and update Android SDK 2.0 and 2.1

Decompress the downloaded android-sdk_r04-windows.zip file to C: \ android-sdk-windows, enter the folder, double-click SDK Setup.exe, start Android SDK and AVD Manager, and select the Settings item on the left, then select Force https: //… In the right-side pane ://... Sources to be fetched using http: //, and then select Save & Apply. Then, see the illustration here:

How to Use Android SDK Setup? Http://www.android123.com.cn/zhongwensdk/366.html

I have selected all the content to be updated, including:

Android SDK Tools, revision 5

Documentation for Android SDK, API 7, revision 1

SDK Platform Android 2.1, API 7 revision 1

Sapmles for sdk api 7, revision 1

SDK Platform Android 2.0.1, API 6, revision 1

Wait patiently -- Note that if there is a prompt during the update process, it may be because you are using the C: \ android-sdk-windows-1.6_r1 directory, or anti-virus software does not allow rewriting of files in it, in this case, You need to exit all programs or temporarily disable anti-virus software.

If everything goes well, the Android 2.1 development environment or the Android 1.6, 2.0, and 2.1 development environments will be ready.

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