102-Managing Android Virtual Devices
1) Before you develop an Android app, you need to setup an Android Emulator for testing your Android Apps..
2) Click Menu Window/Android Virtual Device Manager.
2) Set the machine configuration.
2.1) Click "New..."
2.2) Enter the required details. Click OK.
2.3) To test the machine, select the macine name and click Start… button.
3) Set Launch options.
3.1) Accept the default and click Launch.
3.2) The Starting progress windows pops up.
3.3) The Android emulator starts loading.
3.4) You have to wait for logon screen to appear. Use your mouse to tap on the padlock icon and drag it to the right to unlock the machine.
3.5) Look at the title of the window, 5554:WQVA33
5554 is the port number of the emulator that allows it to communicate with other software.
WQVA33 is the name given in Step (11).
4) You can leave this emulator window open while building the app.