有更快的方法来转储UI层次结构吗? [英] Any faster way to dump UI hierarchy?

问题描述

现在我正在使用uiautomator来转储用户界面，如下所示:

Right now I'm using uiautomator do dump the UI like this:

adb shell uiautomator dump

它工作正常，但执行该过程大约需要3秒钟.所以我想知道是否有更快的方法?就像创建转储UI的服务一样，还是需要花费同样长的时间?

And it works fine except that it takes around 3 seconds to perform it. So I wonder if there is a faster way to do it? Like creating a service that dump the UI or will it take just as long?

推荐答案

猜我应该回答自己的问题，因为我找到了一种更好的方法.我发现这个项目将uiautomator togheter与重量轻的rpc服务器配合使用，因此您可以将命令发送到设备:

Guess I should answer my own question as I found a better way to do it. I found this project that use uiautomator togheter with a light weight rpc server so you can send commands to the device:

https://github.com/xiaocong/android-uiautomator-server#build

这几乎可以立即进行倾销，并且效果非常好.如果您想了解如何进行rpc调用，他也有一个python项目:

This make the dumping almost instantly and works really nice. He also have a python project if you want to see how to make the rpc calls:

https://github.com/xiaocong/uiautomator

但是我在这里创建了一个小例子.

But I have created a small example here.

启动服务器:

# Start the process
process = subprocess.Popen(
        'adb shell uiautomator runtest '
        'bundle.jar uiautomator-stub.jar '
        '-c com.github.uiautomatorstub.Stub', stdout=subprocess.PIPE, shell=True)
# Forward adb ports 
subprocess.call('adb forward tcp:9008 tcp:9009')

调用命令的功能("ping"，"dumpWindowHierarchy"等):

Function to call commands ("ping", "dumpWindowHierarchy" etc):

def send_command(self, method_name, *args):
    """
    Send command to the RPC server

    Args:
        method_name(string): Name of method to run
        *args: Arguments
    """
    data = {
        'jsonrpc': '2.0',
        'method': method_name,
        'id': 1,
    }
    if args:
        data['params'] = args
    request = urllib2.Request(
        'http://localhost:{0}/jsonrpc/0'.format(self.local_port),
        json.dumps(data),
        {
            'Content-type': 'application/json'
        })
    try:
        result = urllib2.urlopen(request, timeout=30)
    except Exception as e:
        return None
    if result is None:
        return None
    json_result = json.loads(result.read())
    if 'error' in json_result:
        raise JsonRPCError('1',
                           'Exception when sending command to '
                           'UIAutomatorServer: {0}'.format(
                               json_result['error']))
    return json_result['result']

请注意，您必须先将文件(bundle.jar和uiautomator-stub.jar)从第一个项目推送到设备，然后将其放入"/data/local/tmp/"

Note that you have to push the files (bundle.jar anduiautomator-stub.jar) from the first project to the device first and put them in "/data/local/tmp/"

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