android monkeyrunner显示高度与快照图像高度

Question

我在monkeyrunner脚本下面运行但看起来display.height与快照图像高度不一样。

在我的情况下，显示.height为2360，但快照图像高度为2560。

#!/usr/bin/env monkeyrunner
import time
from com.android.monkeyrunner import MonkeyRunner, MonkeyDevice  

#----------------------------------------#
def main():
    device = MonkeyRunner.waitForConnection() 
    device.wake()
    time.sleep(1)

    screenW = float(device.getProperty("display.width"))
    screenH = float(device.getProperty("display.height"))
    screenD = device.getProperty("display.density")
    print "screen size: %dx%d density:%s"%(screenW,screenH,screenD)
    return

#----------------------------------------#
def touch(device,x,y,action=MonkeyDevice.DOWN_AND_UP):
    screenW = float(device.getProperty("display.width"))
    screenH = float(device.getProperty("display.height"))
    screenD = device.getProperty("display.density")

    print int(screenW*x),int(screenH*y)
    device.touch(int(screenW*x),int(screenH*y),action) 
    return

#----------------------------------------#
def startActivity(device,package,activity):
    component_name = package + "/" + activity                        
    device.startActivity(component=component_name)
    return

#----------------------------------------#
def snapshot(device,filename):
    result = device.takeSnapshot()
    result.writeToFile(filename,'png')
    return

#----------------------------------------#
if __name__ == '__main__':
    main()
#----------------------------------------#

如何获得2560（就像快照高度一样）作为属性？我想也许display.height不是指屏幕高度？