How to install the Android SDK（Software Development Kit）on your computer?

Before getting started with the Android SDK,take a moment to get to know what is ADB
Detailed process:（We take Windows XP SP3 for example.In theroy,it could do Windows XP、Windows Vista、Windows 7 etc. Windows System）

• You need to ready to install Oracle JDK on your computer
• You need to ready to install related USB Driver on your computer
       HTC USB Driver（Download the file directly）
       Samsung USB Driver（Download the file directly）
       Motorola USB Driver
       LG USB Driver
• Ready to download Android SDK file package.it is a zip format file,we call it compressed file
• UnZip downloaded compressed file to system disk on our computer.We take C drive.There is a file——android-sdk-windows-XX_rN（XX_rN is build number,as 1.0_r2）.To simplify command,we rename it to SDK folder.So C:\ SDK folder
• Browse to the SDK folder folder.Check “tools”or“platform-tools” sub folder.If without this sub folder,we need to run SDK Manager,and select Android SDK Platform-tools package.we can unckeck all the other packages by select the Reject button.And click Install button to process.You will have a “tools”or“platform-tools” sub folder after done.The sub folder include fastboot.exe、adb.exe、AdbWinApi.dll or all other unit
• Set the path variable to c:\SDK folder\tools;c:\SDK folder\platform-tools on your computer.You can do this by——
       Right click My Computer      Click Properties      Click Advanced Button in the System Properties window
       Click Environment Variables Button on Advanced tab
       Check and select Path in the System variables section and click Edit button
       Add string ;c:\SDK folder\tools;c:\SDK folder\platform-tools to the end of Variable value section.Confirm not to delete the existing string
       Click OK button
       Click OK button
• Reboot your computer
• Please enable USB debugging.You can do this by launching “Settings”——“Developer options”——“USB debugging” in turn on your device
• Connect your Android device to your Computer.Make sure the computer can recognize
• Done

Yeah!you are great!You have successfully install Android SDK on your computer.Now we use it:

• Launching Command Window（cmd）on your computer.You can do this by launching “Start”——“Run”——Type“cmd”——“OK”
• Type related Command.Such as adb devices