monkeyrunner截图限时免费阅读#2:多线程保存

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这是monkeyrunner截图限时免费阅读#1的后作.
之前的脚本中将所有的东西都放在主线程里面执行, 实际上, 保存MonkeyImage到磁盘的过程是IO相当大的, 将这类操作放入单独的线程进行处理能大大提高脚本运行的效率.
我们创建一个线程, 指定一个方法和要传入的参数, 就可以让这个方法在线程中执行, 线程需要是非守护线程, 不过这个是默认的.

from com.android.monkeyrunner import MonkeyRunner, MonkeyDevice, MonkeyImageimport sys, os, time, threadingdef saveMonkeyImageToFile(img, name):    '''save monkey img to file'''    img.writeToFile(name, "png")def saveMonkeyImageByThread(img, name):    '''save monkey img to file using thread'''    t = threading.Thread(target=saveMonkeyImageToFile, args=(img, name,))    t.start()if (__name__ == '__main__'):    PF_PNG = ".png"    PN_WIDTH = "display.width"    PN_HEIGHT = "display.height"    DOWN_AND_UP = "down_and_up"    TARGET_PATH = os.getcwd() + '/freeder' + str(int(round(time.time()*1000))) + '/'    os.mkdir(TARGET_PATH)    print 'create dir: ' + TARGET_PATH    print 'waiting for connection'    device = MonkeyRunner.waitForConnection()    print 'device connected'    touch_x = int(device.getProperty(PN_WIDTH)) - 10    touch_y = int(device.getProperty(PN_HEIGHT)) / 2    page = 1    if (len(sys.argv) == 2):        page = int(sys.argv[1])    old_img = device.takeSnapshot()    while (True):        device.touch(touch_x, touch_y, DOWN_AND_UP)        time.sleep(1)        new_img = device.takeSnapshot()        if (new_img.sameAs(old_img)):            print 'snapshot is same, exit'            break        else:            saveMonkeyImageByThread(old_img, TARGET_PATH + str(page) + PF_PNG)            print 'write image to file, nameing ' + str(page) + '.png'            old_img = new_img            page += 1    print 'done exit'

脚本的主要改动在于将存储图片的过程变为了新建一个线程去处理.

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