python调用aapt工具直接获取包名和tagertSdkversion

背景：

每次海外游戏上架都需要符合google的上架规则，其中适配方面tagetSdkversion有硬性要求，比如需要适配安卓q就需要tagetSdkversion达到28，水平太渣的我每次调用aapt工具都需要在cmd中输入大量指令，且aapt dump baging指令会返回大量相关以及无关信息，为了方便过滤相应信息，编写代码直接获取相关信息，排除无关信息

以剑网3指尖江湖的安装包为例

若直接使用aapt工具，返回信息如下图所示

思路：

re模块使用正则表达式过滤无关信息，os模块调用环境变量中的ANDROID_HOME，subprocess创建一个新的进程让其执行另外的程序，并与它进行通信，获取标准的输入、标准输出、标准错误以及返回码等。 

我们实际需要的相关信息红框部分，其余都是无关信息，所以需要re模块去过滤出相关信息

代码：

# -*- coding: utf-8 -*-
import re
import subprocess
import os

class ApkInfo:
    def __init__(self, apk_path):
        self.apkPath = apk_path
        self.aapt_path = self.get_aapt()

    @staticmethod
    def get_aapt():
        if "ANDROID_HOME" in os.environ:
            root_dir = os.path.join(os.environ["ANDROID_HOME"], "build-tools")
            for path, subdir, files in os.walk(root_dir):
                if "aapt.exe" in files:
                    return os.path.join(path, "aapt.exe")
        else:
            return "ANDROID_HOME not exist"

    def get_apk_base_info(self):
        p = subprocess.Popen(self.aapt_path + " dump badging %s" % self.apkPath, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE,
                             stdin=subprocess.PIPE, shell=True)
        (output, err) = p.communicate()
        match = re.compile("package: name='(\S+)'").match(output.decode())
        if not match:
            raise Exception("can't get packageinfo")
        package_name = match.group(1)
        return package_name

    def get_apk_activity(self):
        p = subprocess.Popen(self.aapt_path + " dump badging %s" % self.apkPath, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE,
                             stdin=subprocess.PIPE, shell=True)
        (output, err) = p.communicate()
        match = re.compile("launchable-activity: name='(\S+)'").search(output.decode())
        if match is not None:
            return match.group(1)

    def get_apk_sdkVersion(self):
        p = subprocess.Popen(self.aapt_path + " dump badging %s" % self.apkPath, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE,
                             stdin=subprocess.PIPE, shell=True)
        (output, err) = p.communicate()
        match = re.compile("sdkVersion:'(\S+)'").search(output.decode())
        return match.group(1)

    def get_apk_targetSdkVersion(self):
        p = subprocess.Popen(self.aapt_path + " dump badging %s" % self.apkPath, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE,
                             stdin=subprocess.PIPE, shell=True)
        (output, err) = p.communicate()
        match = re.compile("targetSdkVersion:'(\S+)'").search(output.decode())
        return match.group(1)

if __name__ == '__main__':
    apk_info = ApkInfo(r"apk文件路径")
    print("Activity:%s"%apk_info.get_apk_activity())
    print("apkName:%s"%apk_info.get_apk_base_info())
    print("sdkVersion:%s"%apk_info.get_apk_sdkVersion())
    print("targetSdkVersion:%s"%apk_info.get_apk_targetSdkVersion())

 在pycharm中直接运行，结果如下图所示