If you do not build an Android development environment you can see http://blog.csdn.net/yzhj2005/article/details/6980676/this blog post
Create your first Android project
Open eclipse--file--new--android Application project click 650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M02/5A/0A /wkiol1t1jmpc6_pyaadivrxe9wo222.jpg "title=" 1.png "alt=" Wkiol1t1jmpc6_pyaadivrxe9wo222.jpg "/>
To the Configuration interface
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Fill in the required parameters and choose your own version number
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Then select Next--next--next--next directly to the last interface to select Finish (project creation complete)
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The Myfirstapp development directory is generated when completed
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Select Myfirstapp (Name of the project you created) right---run as--1 Android Application
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The Android emulator now generates the first Android app
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Android Case-the first app