UI自动化偷懒必备：AirTest封装好ADB命令_airtest打包后adb路劲

前言

在UI自动化测试的过程中免不了要跟ADB打交道，原生的ADB命令用是没问题，问题是结合实际业务和效率来说，基本都要封装一下，如果用Python语言的同学就可以偷懒一下，偷懒是为了避免重复造轮子，网易开源的AirTest里有ADB的封装源码，我们拿出来，结合自己需求灵活使用，这里要感谢网易的测开团队。

安装依赖

上面有提到ADB是基于AirTest的，所以要安装AirTest库

pip -U install airtest
1

源码

注意：如果有安装有多个adb版本，出现路径冲突的话，需指定对应的adb路径
使用也比较简单，初始化时传入设备号：serialno就可以，其他参数按需传入
大部分的ADB命令已封装，喜欢的朋友复制拿走

#!/usr/bin/env python
# -*- encoding: utf-8 -*-

import os
import re
import sys
import time
import random
import platform
import warnings
import subprocess
import threading

from six import PY3, text_type, binary_type, raise_from
from six.moves import reduce

from airtest.core.android.constant import (DEFAULT_ADB_PATH, IP_PATTERN,
                                           SDK_VERISON_ANDROID7)
from airtest.core.error import (AdbError, AdbShellError, AirtestError,
                                DeviceConnectionError)
from airtest.utils.compat import decode_path, raisefrom, proc_communicate_timeout, SUBPROCESS_FLAG
from airtest.utils.logger import get_logger
from airtest.utils.nbsp import NonBlockingStreamReader
from airtest.utils.retry import retries
from airtest.utils.snippet import get_std_encoding, reg_cleanup, split_cmd

LOGGING = get_logger(__name__)


class ADB(object):
    """adb client object class"""

    _instances = []
    status_device = "device"
    status_offline = "offline"
    SHELL_ENCODING = "utf-8"

    def __init__(self, serialno=None, adb_path=None, server_addr=None, display_id=None, input_event=None):
        self.serialno = serialno
        self.adb_path = adb_path or self.builtin_adb_path()
        self.display_id = display_id
        self.input_event = input_event
        self._set_cmd_options(server_addr)
        self.connect()
        self._sdk_version = None
        self._line_breaker = None
        self._display_info = {}
        self._display_info_lock = threading.Lock()
        self._forward_local_using = []
        self.__class__._instances.append(self)

    @staticmethod
    def builtin_adb_path():
        """
        Return built-in adb executable path

        Returns:
            adb executable path

        """
        system = platform.system()
        machine = platform.machine()
        adb_path = DEFAULT_ADB_PATH.get('{}-{}'.format(system, machine))
        if not adb_path:
            adb_path = DEFAULT_ADB_PATH.get(system)
        if not adb_path:
            raise RuntimeError("No adb executable supports this platform({}-{}).".format(system, machine))

        # overwrite uiautomator adb
        if "ANDROID_HOME" in os.environ:
            del os.environ["ANDROID_HOME"]
        return adb_path

    def _set_cmd_options(self, server_addr=None):
        """
        Set communication parameters (host and port) between adb server and adb client

        Args:
            server_addr: adb server address, default is 127.0.0.1:5037

        Returns:
            None

        """
        self.host = server_addr[0] if server_addr else "127.0.0.1"
        self.port = server_addr[1] if server_addr else 5037
        self.cmd_options = [self.adb_path]
        if self.host not in ("localhost", "127.0.0.1"):
            self.cmd_options += ['-H', self.host]
        if self.port != 5037:
            self.cmd_options += ['-P', str(self.port)]

    def start_server(self):
        """
        Perform `adb start-server` command to start the adb server

        Returns:
            None

        """
        return self.cmd("start-server", device=False)

    def kill_server(self):
        """
        Perform `adb kill-server` command to kill the adb server

        Returns:
            None

        """
        return self.cmd("kill-server", device=False)

    def version(self):
        """
        Perform `adb version` command and return the command output

        Returns:
            command output

        """
        return self.cmd("version", device=False).strip()

    def start_cmd(self, cmds, device=True):
        """
        Start a subprocess with adb command(s)

        Args:
            cmds: command(s) to be run
            device: if True, the device serial number must be specified by `-s serialno` argument

        Raises:
            RuntimeError: if `device` is True and serialno is not specified

        Returns:
            a subprocess

        """
        if device:
            if not self.serialno:
                raise RuntimeError("please set serialno first")
            cmd_options = self.cmd_options + ['-s', self.serialno]
        else:
            cmd_options = self.cmd_options

        cmds = cmd_options + split_cmd(cmds)
        LOGGING.debug(" ".join(cmds))

        if not PY3:
            cmds = [c.encode(get_std_encoding(sys.stdin)) for c in cmds]

        proc = subprocess.Popen(
            cmds,
            stdin=subprocess.PIPE,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            creationflags=SUBPROCESS_FLAG
        )
        return proc

    def cmd(self, cmds, device=True, ensure_unicode=True, timeout=None):
        """
        Run the adb command(s) in subprocess and return the standard output

        Args:
            cmds: command(s) to be run
            device: if True, the device serial number must be specified by -s serialno argument
            ensure_unicode: encode/decode unicode of standard outputs (stdout, stderr)
            timeout: timeout in seconds

        Raises:
            DeviceConnectionError: if any error occurs when connecting the device
            AdbError: if any other adb error occurs

        Returns:
            command(s) standard output (stdout)

        """
        proc = self.start_cmd(cmds, device)
        if timeout:
            stdout, stderr = proc_communicate_timeout(proc, timeout)
        else:
            stdout, stderr = proc.communicate()

        if ensure_unicode:
            stdout = stdout.decode(get_std_encoding(sys.stdout))
            stderr = stderr.decode(get_std_encoding(sys.stderr))

        if proc.returncode > 0:
            # adb connection error
            pattern = DeviceConnectionError.DEVICE_CONNECTION_ERROR
            if isinstance(stderr, binary_type):
                pattern = pattern.encode("utf-8")
            if re.search(pattern, stderr):
                raise DeviceConnectionError(stderr)
            else:
                raise AdbError(stdout, stderr)
        return stdout

    def close_proc_pipe(self, proc):
        """close stdin/stdout/stderr of subprocess.Popen."""

        def close_pipe(pipe):
            if pipe:
                pipe.close()

        close_pipe(proc.stdin)
        close_pipe(proc.stdout)
        close_pipe(proc.stderr)

    def devices(self, state=None):
        """
        Perform `adb devices` command and return the list of adb devices

        Args:
            state: optional parameter to filter devices in specific state

        Returns:
            list od adb devices

        """
        patten = re.compile(r'^[\w\d.:-]+\t[\w]+$')
        device_list = []
        # self.start_server()
        output = self.cmd("devices", device=False)
        for line in output.splitlines():
            line = line.strip()
            if not line or not patten.match(line):
                continue
            serialno, cstate = line.split('\t')
            if state and cstate != state:
                continue
            device_list.append((serialno, cstate))
        return device_list

    def connect(self, force=False):
        """
        Perform `adb connect` command, remote devices are preferred to connect first

        Args:
            force: force connection, default is False

        Returns:
            None

        """
        if self.serialno and ":" in self.serialno and (force or self.get_status() != "device"):
            connect_result = self.cmd("connect %s" % self.serialno)
            LOGGING.info(connect_result)

    def disconnect(self):
        """
        Perform `adb disconnect` command

        Returns:
            None

        """
        if ":" in self.serialno:
            self.cmd("disconnect %s" % self.serialno)

    def get_status(self):
        """
        Perform `adb get-state` and return the device status

        Raises:
            AdbError: if status cannot be obtained from the device

        Returns:
            None if status is `not found`, otherwise return the standard output from `adb get-state` command

        """
        proc = self.start_cmd("get-state")
        stdout, stderr = proc.communicate()

        stdout = stdout.decode(get_std_encoding(sys.stdout))
        stderr = stderr.decode(get_std_encoding(sys.stdout))

        if proc.returncode == 0:
            return stdout.strip()
        elif "not found" in stderr:
            return None
        else:
            raise AdbError(stdout, stderr)

    def wait_for_device(self, timeout=5):
        """
        Perform `adb wait-for-device` command

        Args:
            timeout: time interval in seconds to wait for device

        Raises:
            DeviceConnectionError: if device is not available after timeout

        Returns:
            None

        """
        try:
            self.cmd("wait-for-device", timeout=timeout)
        except RuntimeError as e:
            raisefrom(DeviceConnectionError, "device not ready", e)

    def start_shell(self, cmds):
        """
        Handle `adb shell` command(s)

        Args:
            cmds: adb shell command(s)

        Returns:
            None

        """
        cmds = ['shell'] + split_cmd(cmds)
        return self.start_cmd(cmds)

    def raw_shell(self, cmds, ensure_unicode=True):
        """
        Handle `adb shell` command(s) with unicode support

        Args:
            cmds: adb shell command(s)
            ensure_unicode: decode/encode unicode True or False, default is True

        Returns:
            command(s) output

        """
        cmds = ['shell'] + split_cmd(cmds)
        out = self.cmd(cmds, ensure_unicode=False)
        if not ensure_unicode:
            return out
        # use shell encoding to decode output
        try:
            return out.decode(self.SHELL_ENCODING)
        except UnicodeDecodeError:
            warnings.warn("shell output decode {} fail. repr={}".format(self.SHELL_ENCODING, repr(out)))
            return text_type(repr(out))

    def shell(self, cmd):
        """
        Run the `adb shell` command on the device

        Args:
            cmd: a command to be run

        Raises:
            AdbShellError: if command return value is non-zero or if any other `AdbError` occurred

        Returns:
            command output

        """
        if self.sdk_version < SDK_VERISON_ANDROID7:
            # for sdk_version < 25, adb shell do not raise error
            # https://stackoverflow.com/questions/9379400/adb-error-codes
            cmd = split_cmd(cmd) + [";", "echo", "---$?---"]
            out = self.raw_shell(cmd).rstrip()
            m = re.match("(.*)---(\d+)---$", out, re.DOTALL)
            if not m:
                warnings.warn("return code not matched")
                stdout = out
                returncode = 0
            else:
                stdout = m.group(1)
                returncode = int(m.group(2))
            if returncode > 0:
                raise AdbShellError("", stdout)
            return stdout
        else:
            try:
                out = self.raw_shell(cmd)
            except AdbError as err:
                raise AdbShellError(err.stdout, err.stderr)
            else:
                return out

    def keyevent(self, keyname):
        """
        Perform `adb shell input keyevent` command on the device

        Args:
            keyname: key event name

        Returns:
            None

        """
        self.shell(["input", "keyevent", keyname.upper()])

    def getprop(self, key, strip=True):
        """
        Perform `adb shell getprop` on the device

        Args:
            key: key value for property
            strip: True or False to strip the return carriage and line break from returned string

        Returns:
            propery value

        """
        prop = self.raw_shell(['getprop', key])
        if strip:
            if "\r\r\n" in prop:
                # Some mobile phones will output multiple lines of extra log
                prop = prop.split("\r\r\n")
                if len(prop) > 1:
                    prop = prop[-2]
                else:
                    prop = prop[-1]
            else:
                prop = prop.strip("\r\n")
        return prop

    @property
    @retries(max_tries=3)
    def sdk_version(self):
        """
        Get the SDK version from the device

        Returns:
            SDK version
        """
        if self._sdk_version is None:
            keyname = 'ro.build.version.sdk'
            self._sdk_version = int(self.getprop(keyname))
        return self._sdk_version

    def push(self, local, remote):
        """
        Perform `adb push` command

        Args:
            local: local file to be copied to the device
            remote: destination on the device where the file will be copied

        Returns:
            None

        """
        self.cmd(["push", local, remote], ensure_unicode=False)

    def pull(self, remote, local):
        """
        Perform `adb pull` command
        Args:
            remote: remote file to be downloaded from the device
            local: local destination where the file will be downloaded from the device

        Returns:
            None
        """
        self.cmd(["pull", remote, local], ensure_unicode=False)

    def forward(self, local, remote, no_rebind=True):
        """
        Perform `adb forward` command

        Args:
            local: local tcp port to be forwarded
            remote: tcp port of the device where the local tcp port will be forwarded
            no_rebind: True or False

        Returns:
            None

        """
        cmds = ['forward']
        if no_rebind:
            cmds += ['--no-rebind']
        self.cmd(cmds + [local, remote])
        # register for cleanup atexit
        if local not in self._forward_local_using:
            self._forward_local_using.append(local)

    def get_forwards(self):
        """
        Perform `adb forward --list`command

        Yields:
            serial number, local tcp port, remote tcp port

        Returns:
            None

        """
        out = self.cmd(['forward', '--list'])
        for line in out.splitlines():
            line = line.strip()
            if not line:
                continue
            cols = line.split()
            if len(cols) != 3:
                continue
            serialno, local, remote = cols
            yield serialno, local, remote

    @classmethod
    def get_available_forward_local(cls):
        """
        Generate a pseudo random number between 11111 and 20000 that will be used as local forward port

        Returns:
            integer between 11111 and 20000

        Note:
            use `forward --no-rebind` to check if port is available
        """
        return random.randint(11111, 20000)

    @retries(3)
    def setup_forward(self, device_port):
        """
        Generate pseudo random local port and check if the port is available.

        Args:
            device_port: it can be string or the value of the `function(localport)`,
                         e.g. `"tcp:5001"` or `"localabstract:{}".format`

        Returns:
            local port and device port

        """
        localport = self.get_available_forward_local()
        if callable(device_port):
            device_port = device_port(localport)
        self.forward("tcp:%s" % localport, device_port)
        return localport, device_port

    def remove_forward(self, local=None):
        """
        Perform `adb forward --remove` command

        Args:
            local: local tcp port

        Returns:
            None

        """
        if local:
            cmds = ["forward", "--remove", local]
        else:
            cmds = ["forward", "--remove-all"]
        self.cmd(cmds)
        # unregister for cleanup
        if local in self._forward_local_using:
            self._forward_local_using.remove(local)

    def install_app(self, filepath, replace=False, install_options=None):
        """
        Perform `adb install` command

        Args:
            filepath: full path to file to be installed on the device
            replace: force to replace existing application, default is False

                e.g.["-t",  # allow test packages
                    "-l",  # forward lock application,
                    "-s",  # install application on sdcard,
                    "-d",  # allow version code downgrade (debuggable packages only)
                    "-g",  # grant all runtime permissions
                ]

        Returns:
            command output

        """
        if isinstance(filepath, str):
            filepath = decode_path(filepath)

        if not os.path.isfile(filepath):
            raise RuntimeError("file: %s does not exists" % (repr(filepath)))

        if not install_options or type(install_options) != list:
            install_options = []
        if replace:
            install_options.append("-r")
        cmds = ["install", ] + install_options + [filepath, ]
        out = self.cmd(cmds)

        if re.search(r"Failure \[.*?\]", out):
            raise AdbShellError("Installation Failure", repr(out))

        return out

    def install_multiple_app(self, filepath, replace=False, install_options=None):
        """
            Perform `adb install-multiple` command

            Args:
                filepath: full path to file to be installed on the device
                replace: force to replace existing application, default is False
                install_options:  list of options
                    e.g.["-t",  # allow test packages
                        "-l",  # forward lock application,
                        "-s",  # install application on sdcard,
                        "-d",  # allow version code downgrade (debuggable packages only)
                        "-g",  # grant all runtime permissions
                        "-p",  # partial application install (install-multiple only)
                    ]

            Returns:
                command output
        """
        if isinstance(filepath, str):
            filepath = decode_path(filepath)

        if not os.path.isfile(filepath):
            raise RuntimeError("file: %s does not exists" % (repr(filepath)))

        if not install_options or type(install_options) != list:
            install_options = []
        if replace:
            install_options.append("-r")
        cmds = ["install-multiple", ] + install_options + [filepath, ]

        try:
            out = self.cmd(cmds)
        except AdbError as err:
            if "Failed to finalize session".lower() in err.stderr.lower():
                return "Success"
            else:
                return self.install_app(filepath, replace)

        if re.search(r"Failure \[.*?\]", out):
            raise AdbShellError("Installation Failure", repr(out))

        return out

    def pm_install(self, filepath, replace=False):
        """
        Perform `adb push` and `adb install` commands

        Note:
            This is more reliable and recommended way of installing `.apk` files

        Args:
            filepath: full path to file to be installed on the device
            replace: force to replace existing application, default is False

        Returns:
            None

        """
        filename = os.path.basename(filepath)
        device_dir = "/data/local/tmp"
        # if the apk file path contains spaces, the path must be escaped
        device_path = '\"%s/%s\"' % (device_dir, filename)

        out = self.cmd(["push", filepath, device_dir])
        print(out)

        if not replace:
            self.shell(['pm', 'install', device_path])
        else:
            self.shell(['pm', 'install', '-r', device_path])

    def uninstall_app(self, package):
        """
        Perform `adb uninstall` command
        Args:
            package: package name to be uninstalled from the device

        Returns:
            command output

        """
        return self.cmd(['uninstall', package])

    def pm_uninstall(self, package, keepdata=False):
        """
        Perform `adb uninstall` command and delete all related application data

        Args:
            package: package name to be uninstalled from the device
            keepdata: True or False, keep application data after removing the app from the device

        Returns:
            command output

        """
        cmd = ['pm', 'uninstall', package]
        if keepdata:
            cmd.append('-k')
        self.shell(cmd)

    def snapshot(self):
        """
        Take the screenshot of the device display

        Returns:
            command output (stdout)

        """
        if self.display_id:
            raw = self.cmd('shell screencap -d {0} -p'.format(self.display_id), ensure_unicode=False)
        else:
            raw = self.cmd('shell screencap -p', ensure_unicode=False)
        return raw.replace(self.line_breaker, b"\n")

    # PEP 3113 -- Removal of Tuple Parameter Unpacking
    # https://www.python.org/dev/peps/pep-3113/
    def touch(self, tuple_xy):
        """
        Perform user input (touchscreen) on given coordinates

        Args:
            tuple_xy: coordinates (x, y)

        Returns:
            None

        """
        x, y = tuple_xy
        self.shell('input tap %d %d' % (x, y))
        time.sleep(0.1)

    def swipe(self, tuple_x0y0, tuple_x1y1, duration=500):
        """
        Perform user input (swipe screen) from start point (x,y) to end point (x,y)

        Args:
            tuple_x0y0: start point coordinates (x, y)
            tuple_x1y1: end point coordinates (x, y)
            duration: time interval for action, default 500

        Raises:
            AirtestError: if SDK version is not supported

        Returns:
            None

        """
        # prot python 3
        x0, y0 = tuple_x0y0
        x1, y1 = tuple_x1y1

        version = self.sdk_version
        if version <= 15:
            raise AirtestError('swipe: API <= 15 not supported (version=%d)' % version)
        elif version <= 17:
            self.shell('input swipe %d %d %d %d' % (x0, y0, x1, y1))
        else:
            self.shell('input touchscreen swipe %d %d %d %d %d' % (x0, y0, x1, y1, duration))

    def logcat(self, grep_str="", extra_args="", read_timeout=10):
        """
        Perform `adb shell logcat` command and search for given patterns

        Args:
            grep_str: pattern to filter from the logcat output
            extra_args: additional logcat arguments
            read_timeout: time interval to read the logcat, default is 10

        Yields:
            logcat lines containing filtered patterns

        Returns:
            None

        """
        cmds = "shell logcat"
        if extra_args:
            cmds += " " + extra_args
        if grep_str:
            cmds += " | grep " + grep_str
        logcat_proc = self.start_cmd(cmds)
        nbsp = NonBlockingStreamReader(logcat_proc.stdout, print_output=False)
        while True:
            line = nbsp.readline(read_timeout)
            if line is None:
                break
            else:
                yield line
        nbsp.kill()
        logcat_proc.kill()
        return

    def exists_file(self, filepath):
        """
        Check if the file exits on the device

        Args:
            filepath: path to the file

        Returns:
            True or False if file found or not

        """
        try:
            out = self.shell(["ls", filepath])
        except AdbShellError:
            return False
        else:
            return not ("No such file or directory" in out)

    def file_size(self, filepath):
        """
        Get the file size

        Args:
            filepath: path to the file

        Returns:
            The file size

        Raises:
            AdbShellError if no such file
        """
        out = self.shell(["ls", "-l", filepath])
        file_size = int(out.split()[4])
        return file_size

    def _cleanup_forwards(self):
        """
        Remove the local forward ports

        Returns:
            None
        """
        for local in self._forward_local_using:
            self.start_cmd(["forward", "--remove", local])

        self._forward_local_using = []

    @property
    def line_breaker(self):
        """
        Set carriage return and line break property for various platforms and SDK versions

        Returns:
            carriage return and line break string

        """
        if not self._line_breaker:
            if self.sdk_version >= SDK_VERISON_ANDROID7:
                line_breaker = os.linesep
            else:
                line_breaker = '\r' + os.linesep
            self._line_breaker = line_breaker.encode("ascii")
        return self._line_breaker

    @property
    def display_info(self):
        """
        Set device display properties (orientation, rotation and max values for x and y coordinates)

        Notes:
        if there is a lock screen detected, the function tries to unlock the device first

        Returns:
            device screen properties

        """
        self._display_info_lock.acquire()
        if not self._display_info:
            self._display_info = self.get_display_info()
        self._display_info_lock.release()
        return self._display_info

    def get_display_info(self):
        """
        Get information about device physical display (orientation, rotation and max values for x and y coordinates)

        Returns:
            device screen properties

        """
        display_info = self.getPhysicalDisplayInfo()
        orientation = self.getDisplayOrientation()
        max_x, max_y = self.getMaxXY()
        display_info.update({
            "orientation": orientation,
            "rotation": orientation * 90,
            "max_x": max_x,
            "max_y": max_y,
        })
        return display_info

    def getMaxXY(self):
        """
        Get device display maximum values for x and y coordinates

        Returns:
            max x and max y coordinates

        """
        ret = self.shell('getevent -p').split('\n')
        max_x, max_y = None, None
        for i in ret:
            if i.find("0035") != -1:
                patten = re.compile(r'max [0-9]+')
                ret = patten.search(i)
                if ret:
                    max_x = int(ret.group(0).split()[1])

            if i.find("0036") != -1:
                patten = re.compile(r'max [0-9]+')
                ret = patten.search(i)
                if ret:
                    max_y = int(ret.group(0).split()[1])
        return max_x, max_y

    def getRestrictedScreen(self):
        """
        Get value for mRestrictedScreen (without black border / virtual keyboard)`

        Returns:
            screen resolution mRestrictedScreen value as tuple (x, y)

        """
        # get the effective screen resolution of the device
        result = None
        # get the corresponding mRestrictedScreen parameters according to the device serial number
        dumpsys_info = self.shell("dumpsys window")
        match = re.search(r'mRestrictedScreen=.+', dumpsys_info)
        if match:
            infoline = match.group(0).strip()  # like 'mRestrictedScreen=(0,0) 720x1184'
            resolution = infoline.split(" ")[1].split("x")
            if isinstance(resolution, list) and len(resolution) == 2:
                result = int(str(resolution[0])), int(str(resolution[1]))

        return result

    def getPhysicalDisplayInfo(self):
        """
        Get value for display dimension and density from `mPhysicalDisplayInfo` value obtained from `dumpsys` command.

        Returns:
            physical display info for dimension and density

        """
        phyDispRE = re.compile('.*PhysicalDisplayInfo{(?P<width>\d+) x (?P<height>\d+), .*, density (?P<density>[\d.]+).*')
        out = self.raw_shell('dumpsys display')
        m = phyDispRE.search(out)
        if m:
            displayInfo = {}
            for prop in ['width', 'height']:
                displayInfo[prop] = int(m.group(prop))
            for prop in ['density']:
                # In mPhysicalDisplayInfo density is already a factor, no need to calculate
                displayInfo[prop] = float(m.group(prop))
            return displayInfo

        # This could also be mSystem or mOverscanScreen
        phyDispRE = re.compile('\s*mUnrestrictedScreen=\((?P<x>\d+),(?P<y>\d+)\) (?P<width>\d+)x(?P<height>\d+)')
        # This is known to work on older versions (i.e. API 10) where mrestrictedScreen is not available
        dispWHRE = re.compile('\s*DisplayWidth=(?P<width>\d+) *DisplayHeight=(?P<height>\d+)')
        out = self.raw_shell('dumpsys window')
        m = phyDispRE.search(out, 0)
        if not m:
            m = dispWHRE.search(out, 0)
        if m:
            displayInfo = {}
            for prop in ['width', 'height']:
                displayInfo[prop] = int(m.group(prop))
            for prop in ['density']:
                d = self._getDisplayDensity(None, strip=True)
                if d:
                    displayInfo[prop] = d
                else:
                    # No available density information
                    displayInfo[prop] = -1.0
            return displayInfo

        # gets C{mPhysicalDisplayInfo} values from dumpsys. This is a method to obtain display dimensions and density
        phyDispRE = re.compile('Physical size: (?P<width>\d+)x(?P<height>\d+).*Physical density: (?P<density>\d+)', re.S)
        m = phyDispRE.search(self.raw_shell('wm size; wm density'))
        if m:
            displayInfo = {}
            for prop in ['width', 'height']:
                displayInfo[prop] = int(m.group(prop))
            for prop in ['density']:
                displayInfo[prop] = float(m.group(prop))
            return displayInfo

        return {}

    def _getDisplayDensity(self, key, strip=True):
        """
        Get display density

        Args:
            key:
            strip: strip the output

        Returns:
            display density

        """
        BASE_DPI = 160.0
        d = self.getprop('ro.sf.lcd_density', strip)
        if d:
            return float(d) / BASE_DPI
        d = self.getprop('qemu.sf.lcd_density', strip)
        if d:
            return float(d) / BASE_DPI
        return -1.0

    def getDisplayOrientation(self):
        """
        Another way to get the display orientation, this works well for older devices (SDK version 15)

        Returns:
            display orientation information

        """
        # another way to get orientation, for old sumsung device(sdk version 15) from xiaoma
        SurfaceFlingerRE = re.compile('orientation=(\d+)')
        output = self.shell('dumpsys SurfaceFlinger')
        m = SurfaceFlingerRE.search(output)
        if m:
            return int(m.group(1))

        # Fallback method to obtain the orientation
        # See https://github.com/dtmilano/AndroidViewClient/issues/128
        surfaceOrientationRE = re.compile('SurfaceOrientation:\s+(\d+)')
        output = self.shell('dumpsys input')
        m = surfaceOrientationRE.search(output)
        if m:
            return int(m.group(1))

        # We couldn't obtain the orientation
        warnings.warn("Could not obtain the orientation, return 0")
        return 0

    def get_top_activity(self):
        """
        Perform `adb shell dumpsys activity top` command search for the top activity

        Raises:
            AirtestError: if top activity cannot be obtained

        Returns:
            top activity as a tuple: (package_name, activity_name, pid)

        """
        dat = self.shell('dumpsys activity top')
        activityRE = re.compile(r'\s*ACTIVITY ([A-Za-z0-9_.$]+)/([A-Za-z0-9_.$]+) \w+ pid=(\d+)')
        # in Android8.0 or higher, the result may be more than one
        m = activityRE.findall(dat)
        if m:
            return m[-1]
        else:
            raise AirtestError("Can not get top activity, output:%s" % dat)

    def is_keyboard_shown(self):
        """
        Perform `adb shell dumpsys input_method` command and search for information if keyboard is shown

        Returns:
            True or False whether the keyboard is shown or not

        """
        dim = self.shell('dumpsys input_method')
        if dim:
            return "mInputShown=true" in dim
        return False

    def is_screenon(self):
        """
        Perform `adb shell dumpsys window policy` command and search for information if screen is turned on or off

        Raises:
            AirtestError: if screen state can't be detected

        Returns:
            True or False whether the screen is turned on or off

        """
        screenOnRE = re.compile('mScreenOnFully=(true|false)')
        m = screenOnRE.search(self.shell('dumpsys window policy'))
        if m:
            return m.group(1) == 'true'
        else:
            # MIUI11
            screenOnRE = re.compile('screenState=(SCREEN_STATE_ON|SCREEN_STATE_OFF)')
            m = screenOnRE.search(self.shell('dumpsys window policy'))
            if m:
                return m.group(1) == 'SCREEN_STATE_ON'
        raise AirtestError("Couldn't determine screen ON state")

    def is_locked(self):
        """
        Perform `adb shell dumpsys window policy` command and search for information if screen is locked or not

        Raises:
            AirtestError: if lock screen can't be detected

        Returns:
            True or False whether the screen is locked or not

        """
        lockScreenRE = re.compile('(?:mShowingLockscreen|isStatusBarKeyguard|showing)=(true|false)')
        m = lockScreenRE.search(self.shell('dumpsys window policy'))
        if not m:
            raise AirtestError("Couldn't determine screen lock state")
        return (m.group(1) == 'true')

    def unlock(self):
        """
        Perform `adb shell input keyevent MENU` and `adb shell input keyevent BACK` commands to attempt
        to unlock the screen

        Returns:
            None

        Warnings:
            Might not work on all devices

        """
        self.shell('input keyevent MENU')
        self.shell('input keyevent BACK')

    def get_package_version(self, package):
        """
        Perform `adb shell dumpsys package` and search for information about given package version

        Args:
            package: package name

        Returns:
            None if no info has been found, otherwise package version

        """
        package_info = self.shell(['dumpsys', 'package', package])
        matcher = re.search(r'versionCode=(\d+)', package_info)
        if matcher:
            return int(matcher.group(1))
        return None

    def list_app(self, third_only=False):
        """
        Perform `adb shell pm list packages` to print all packages, optionally only
          those whose package name contains the text in FILTER.

        Options
            -f: see their associated file
            -d: filter to only show disabled packages
            -e: filter to only show enabled packages
            -s: filter to only show system packages
            -3: filter to only show third party packages
            -i: see the installer for the packages
            -u: also include uninstalled packages


        Args:
            third_only: print only third party packages

        Returns:
            list of packages

        """
        cmd = ["pm", "list", "packages"]
        if third_only:
            cmd.append("-3")
        output = self.shell(cmd)
        packages = output.splitlines()
        # remove all empty string; "package:xxx" -> "xxx"
        packages = [p.split(":")[1] for p in packages if p]
        return packages

    def path_app(self, package):
        """
        Perform `adb shell pm path` command to print the path to the package

        Args:
            package: package name

        Raises:
            AdbShellError: if any adb error occurs
            AirtestError: if package is not found on the device

        Returns:
            path to the package

        """
        try:
            output = self.shell(['pm', 'path', package])
        except AdbShellError:
            output = ""
        if 'package:' not in output:
            raise AirtestError('package not found, output:[%s]' % output)
        return output.split("package:")[1].strip()

    def check_app(self, package):
        """
        Perform `adb shell dumpsys package` command and check if package exists on the device

        Args:
            package: package name

        Raises:
            AirtestError: if package is not found

        Returns:
            True if package has been found

        """
        output = self.shell(['dumpsys', 'package', package])
        pattern = r'Package\s+\[' + str(package) + '\]'
        match = re.search(pattern, output)
        if match is None:
            raise AirtestError('package "{}" not found'.format(package))
        return True

    def start_app(self, package, activity=None):
        """
        Perform `adb shell monkey` commands to start the application, if `activity` argument is `None`, then
        `adb shell am start` command is used.

        Args:
            package: package name
            activity: activity name

        Returns:
            None

        """
        if not activity:
            self.shell(['monkey', '-p', package, '-c', 'android.intent.category.LAUNCHER', '1'])
        else:
            self.shell(['am', 'start', '-n', '%s/%s.%s' % (package, package, activity)])

    def start_app_timing(self, package, activity):
        """
        Start the application and activity, and measure time

        Args:
            package: package name
            activity: activity name

        Returns:
            app launch time

        """
        out = self.shell(['am', 'start', '-S', '-W', '%s/%s' % (package, activity),
                          '-c', 'android.intent.category.LAUNCHER', '-a', 'android.intent.action.MAIN'])
        if not re.search(r"Status:\s*ok", out):
            raise AirtestError("Starting App: %s/%s Failed!" % (package, activity))

        # matcher = re.search(r"TotalTime:\s*(\d+)", out)
        matcher = re.search(r"TotalTime:\s*(\d+)", out)
        if matcher:
            return int(matcher.group(1))
        else:
            return 0

    def stop_app(self, package):
        """
        Perform `adb shell am force-stop` command to force stop the application

        Args:
            package: package name

        Returns:
            None

        """
        self.shell(['am', 'force-stop', package])

    def clear_app(self, package):
        """
        Perform `adb shell pm clear` command to clear all application data

        Args:
            package: package name

        Returns:
            None

        """
        self.shell(['pm', 'clear', package])

    def get_ip_address(self):
        """
        Perform several set of commands to obtain the IP address.

            * `adb shell netcfg | grep wlan0`
            * `adb shell ifconfig`
            * `adb getprop dhcp.wlan0.ipaddress`

        Returns:
            None if no IP address has been found, otherwise return the IP address

        """

        def get_ip_address_from_interface(interface):
            """Get device ip from target network interface."""
            # android >= 6.0: ip -f inet addr show {interface}
            try:
                res = self.shell('ip -f inet addr show {}'.format(interface))
            except AdbShellError:
                res = ''
            matcher = re.search(r"inet (\d+\.){3}\d+", res)
            if matcher:
                return matcher.group().split(" ")[-1]

            # android >= 6.0 backup method: ifconfig
            try:
                res = self.shell('ifconfig')
            except AdbShellError:
                res = ''
            matcher = re.search(interface + r'.*?inet addr:((\d+\.){3}\d+)', res, re.DOTALL)
            if matcher:
                return matcher.group(1)

            # android <= 6.0: netcfg
            try:
                res = self.shell('netcfg')
            except AdbShellError:
                res = ''
            matcher = re.search(interface + r'.* ((\d+\.){3}\d+)/\d+', res)
            if matcher:
                return matcher.group(1)

            # android <= 6.0 backup method: getprop dhcp.{}.ipaddress
            try:
                res = self.shell('getprop dhcp.{}.ipaddress'.format(interface))
            except AdbShellError:
                res = ''
            matcher = IP_PATTERN.search(res)
            if matcher:
                return matcher.group(0)

            # sorry, no more methods...
            return None

        interfaces = ('eth0', 'eth1', 'wlan0')
        for i in interfaces:
            ip = get_ip_address_from_interface(i)
            if ip and not ip.startswith('172.') and not ip.startswith('127.') and not ip.startswith('169.'):
                return ip

        return None

    def get_gateway_address(self):
        """
        Perform several set of commands to obtain the gateway address.
            * `adb getprop dhcp.wlan0.gateway`
            * `adb shell netcfg | grep wlan0`

        Returns:
            None if no gateway address has been found, otherwise return the gateway address

        """
        ip2int = lambda ip: reduce(lambda a, b: (a << 8) + b, map(int, ip.split('.')), 0)
        int2ip = lambda n: '.'.join([str(n >> (i << 3) & 0xFF) for i in range(0, 4)[::-1]])
        try:
            res = self.shell('getprop dhcp.wlan0.gateway')
        except AdbShellError:
            res = ''
        matcher = IP_PATTERN.search(res)
        if matcher:
            return matcher.group(0)
        ip = self.get_ip_address()
        if not ip:
            return None
        mask_len = self._get_subnet_mask_len()
        gateway = (ip2int(ip) & (((1 << mask_len) - 1) << (32 - mask_len))) + 1
        return int2ip(gateway)

    def _get_subnet_mask_len(self):
        """
        Perform `adb shell netcfg | grep wlan0` command to obtain mask length

        Returns:
            17 if mask length could not be detected, otherwise the mask length

        """
        try:
            res = self.shell('netcfg')
        except AdbShellError:
            pass
        else:
            matcher = re.search(r'wlan0.* (\d+\.){3}\d+/(\d+) ', res)
            if matcher:
                return int(matcher.group(2))
        # 获取不到网段长度就默认取17
        print('[iputils WARNING] fail to get subnet mask len. use 17 as default.')
        return 17

    def get_memory(self):
        res = self.shell("dumpsys meminfo")
        pat = re.compile(r".*Total RAM:\s+(\S+)\s+", re.DOTALL)
        _str = pat.match(res).group(1)
        if ',' in _str:
            _list = _str.split(',')
            _num = int(_list[0])
            _num = round(_num + (float(_list[1]) / 1000.0))
        else:
            _num = round(float(_str) / 1000.0 / 1000.0)
        res = str(_num) + 'G'
        return res

    def get_storage(self):
        res = self.shell("df /data")
        pat = re.compile(r".*\/data\s+(\S+)", re.DOTALL)
        if pat.match(res):
            _str = pat.match(res).group(1)
        else:
            pat = re.compile(r".*\s+(\S+)\s+\S+\s+\S+\s+\S+\s+\/data", re.DOTALL)
            _str = pat.match(res).group(1)
        if 'G' in _str:
            _num = round(float(_str[:-1]))
        elif 'M' in _str:
            _num = round(float(_str[:-1]) / 1000.0)
        else:
            _num = round(float(_str) / 1000.0 / 1000.0)
        if _num > 64:
            res = '128G'
        elif _num > 32:
            res = '64G'
        elif _num > 16:
            res = '32G'
        elif _num > 8:
            res = '16G'
        else:
            res = '8G'
        return res

    def get_cpuinfo(self):
        res = self.shell("cat /proc/cpuinfo").strip()
        cpuNum = res.count("processor")
        pat = re.compile(r'Hardware\s+:\s+(\w+.*)')
        m = pat.match(res)
        if not m:
            pat = re.compile(r'Processor\s+:\s+(\w+.*)')
            m = pat.match(res)
        cpuName = m.group(1).replace('\r', '')
        return dict(cpuNum=cpuNum, cpuName=cpuName)

    def get_cpufreq(self):
        res = self.shell("cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq")
        num = round(float(res) / 1000 / 1000, 1)
        res = str(num) + 'GHz'
        return res.strip()

    def get_cpuabi(self):
        res = self.shell("getprop ro.product.cpu.abi")
        return res.strip()

    def get_gpu(self):
        res = self.shell("dumpsys SurfaceFlinger")
        pat = re.compile(r'GLES:\s+(.*)')
        m = pat.search(res)
        if not m:
            return None
        _list = m.group(1).split(',')
        gpuModel = ""
        opengl = ""
        if len(_list) > 0:
            gpuModel = _list[1].strip()
        if len(_list) > 1:
            m2 = re.search(r'(\S+\s+\S+\s+\S+).*', _list[2])
            if m2:
                opengl = m2.group(1)
        return dict(gpuModel=gpuModel, opengl=opengl)

    def get_model(self):
        return self.getprop("ro.product.model")

    def get_manufacturer(self):
        return self.getprop("ro.product.manufacturer")

    def get_device_info(self):
        """
        Get android device information, including: memory/storage/display/cpu/gpu/model/manufacturer...

        Returns:
            Dict of info

        """
        handlers = {
            "platform": "Android",
            "serialno": self.serialno,
            "memory": self.get_memory,
            "storage": self.get_storage,
            "display": self.getPhysicalDisplayInfo,
            "cpuinfo": self.get_cpuinfo,
            "cpufreq": self.get_cpufreq,
            "cpuabi": self.get_cpuabi,
            "sdkversion": self.sdk_version,
            "gpu": self.get_gpu,
            "model": self.get_model,
            "manufacturer": self.get_manufacturer,
            # "battery": getBatteryCapacity
        }
        ret = {}
        for k, v in handlers.items():
            if callable(v):
                try:
                    value = v()
                except Exception:
                    value = None
                ret[k] = value
            else:
                ret[k] = v
        return ret

    def get_display_of_all_screen(self, info):
        """
        Perform `adb shell dumpsys window windows` commands to get window display of application.

        Args:
            info: device screen properties

        Returns:
            None if adb command failed to run, otherwise return device screen properties

        """
        output = self.shell("dumpsys window windows")
        windows = output.split("Window #")
        offsetx, offsety, x, y = info['width'], info['height'], 0, 0
        package = self._search_for_current_package(output)
        if package:
            for w in windows:
                if "package=%s" % package in w:
                    arr = re.findall(r'Frames: containing=\[(\d+\.?\d*),(\d+\.?\d*)]\[(\d+\.?\d*),(\d+\.?\d*)]', w)
                    if len(arr) >= 1 and len(arr[0]) == 4:
                        offsetx, offsety, x, y = float(arr[0][0]), float(arr[0][1]), float(arr[0][2]), float(arr[0][3])
                        if info["orientation"] in [1, 3]:
                            offsetx, offsety, x, y = offsety, offsetx, y, x
                        x, y = x - offsetx, y - offsety
        return {
            "offset_x": offsetx,
            "offset_y": offsety,
            "offset_width": x,
            "offset_height": y
        }

    def _search_for_current_package(self, ret):
        """
        Search for current app package name from the output of command "adb shell dumpsys window windows"

        Returns:
            package name if exists else ""
        """
        try:
            packageRE = re.compile('\s*mCurrentFocus=Window{.* ([A-Za-z0-9_.]+)/[A-Za-z0-9_.]+}')
            m = packageRE.findall(ret)
            if m:
                return m[-1]
            else:
                return self.get_top_activity()[0]
        except Exception as e:
            print("[Error] Cannot get current top activity")
        return ""


def cleanup_adb_forward():
    for adb in ADB._instances:
        adb._cleanup_forwards()


reg_cleanup(cleanup_adb_forward)


# if __name__ == "__main__":
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