MonkeyRunner 连续两次点击报“Error sending touch event”

最近用monkeyrunner做自动化测试，遇到连续两次点击，第二次点击就会报错“Error sending touch event”。

具体做法如下:

device.touch(234,112, 'MonkeyDevice.DOWN_AND_UP')

time.sleep(3)

device.touch(297,250,'MonkeyDevice.DOWN_AND_UP')

第二次touch的时候报错如下：

 Error sending touch event: 297 250 DOWN_AND_UP
java.net.SocketException: Software caused connection abort: recv failed
 at java.net.SocketInputStream.socketRead0(Native Method)
 at java.net.SocketInputStream.read(SocketInputStream.java:150)
 at java.net.SocketInputStream.read(SocketInputStream.java:121)
 at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
 at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
 at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
 at java.io.InputStreamReader.read(InputStreamReader.java:184)
 at java.io.BufferedReader.fill(BufferedReader.java:154)
 at java.io.BufferedReader.readLine(BufferedReader.java:317)
 at java.io.BufferedReader.readLine(BufferedReader.java:382)
 at com.android.chimpchat.ChimpManager.sendMonkeyEventAndGetResponse(ChimpManager.java:188)

google后找到的解决方案，是在每次使用device的时候必须先要给他初始化device。在第二个device.touch(297,250,'MonkeyDevice.DOWN_AND_UP')前面加上device = MonkeyRunner.waitForConnection()就可以了。 

百度了半天都没结果，还是上stackoverflow.com找到的。

具体可以参考：http://stackoverflow.com/questions/16466013/device-press-touch-with-monkeyrunner-on-droidbox-dont-work