好，不啰嗦，上代码：
(PS:为了丰富执行逻辑，本人在练习时，有添加了几个app：请仅限于技术研究使用)

#coding:utf-8
import os
import threading
import re
import time
import random
    
stepOut1 = ""
stepOut2 = ""
stepOut3 = ""           
curAppType = "7"                
AppTypeList = ["1", "2", "3", "5", "7"]
startReadTime = int(time.time())    
MaxReadTimeInOnePlatform = 60*20 # 秒
curAppStartActivity = ""    
curAppMainActivity = ""         
curAppMainReadActivity = ""                         
                                    
def setAppInfoByType():             
    global curAppMainActivity
    global curAppMainReadActivity
    global curAppStartActivity          
    global curAppType                   
    if curAppType == "2": # 聚看点             
        curAppStartActivity = "com.xiangzi.jukandian/com.xiangzi.jukandian.activity.V2WelcomeActivity"
        curAppMainActivity = "com.xiangzi.jukandian/com.xiangzi.jukandian.activity.MainActivity"    
        curAppMainReadActivity = ["com.xiangzi.jukandian/com.xiangzi.jukandian.activity.WebViewActivity"]
    if curAppType == "3": # 微鲤看看                                    
        curAppStartActivity = "cn.weli.story/cn.etouch.ecalendar.MainActivity"  
        curAppMainActivity = "cn.weli.story/cn.etouch.ecalendar.MainActivity"   
        curAppMainReadActivity = ["cn.weli.story/cn.etouch.ecalendar.tools.life.LifeDetailsActivity"]
    if curAppType == "5": # 搜狐资讯            
        curAppStartActivity = "com.sohu.infonews/com.sohu.quicknews.splashModel.activity.SplashActivity"
        curAppMainActivity = "com.sohu.infonews/com.sohu.quicknews.homeModel.activity.HomeActivity"
        curAppMainReadActivity = ["com.sohu.infonews/com.sohu.quicknews.articleModel.activity.DetailActivity", "com.sohu.infonews/com.sohu.quicknews.articleModel.activity.VideoDetailActivity"]
    if curAppType == "7": # 牛牛咨询     
        curAppStartActivity = "com.huolea.bull/com.huolea.bull.page.other.activity.SplashActivity"
        curAppMainActivity = "com.huolea.bull/com.huolea.bull.page.other.activity.MainActivity" 
        curAppMainReadActivity = ["com.huolea.bull/com.huolea.bull.page.news.activity.NewsDetailActivity"]
    if curAppType == "1" or curAppType == "": # 趣头条     
        curAppStartActivity = "com.jifen.qukan/com.jifen.qkbase.main.MainActivity"
        curAppMainActivity = "com.jifen.qukan/com.jifen.qkbase.main.MainActivity"   
        curAppMainReadActivity = ["com.jifen.qukan/com.jifen.qukan.content.newsdetail.news.NewsDetailNewActivity", "com.jifen.qukan/com.jifen.qukan.content.newsdetail.video.VideoNewsDetailNewActivity"]
              
    if curAppMainActivity == "":            
        curAppType = AppTypeList[0]             
            
def startActivity():    
    os.system('adb shell am start -n ' + curAppStartActivity)
        

def isActivityInList(activity_des):
    for activity in curAppMainReadActivity:
        if activity_des.find(activity) != -1:
            return True

    return False    


def toutiaoRead(device_name):       
    print(device_name)          
        
    setAppInfoByType()      
    startActivity()
    time.sleep(10)                                        
    while True:     
        curTime = int(time.time())  
        global startReadTime
        global curAppType  
        if ((curTime - startReadTime) > MaxReadTimeInOnePlatform):
            print("切换app-------------")
            startReadTime = curTime
            print("关闭当前app-------------")  
            os.popen("adb shell input keyevent 4")  
            time.sleep(0.1)
            os.popen("adb shell input keyevent 4")  
            time.sleep(0.1) 
            os.popen("adb shell input keyevent 4")              
            if AppTypeList.index(curAppType) == len(AppTypeList) - 1:
                curAppType = AppTypeList[0]                 
            else:
                curAppType = AppTypeList[AppTypeList.index(curAppType) + 1]

            setAppInfoByType()      
            if curAppType == "":  
                print("error")  
                return  

            print("切换中-------------")   
            startActivity()
            time.sleep(10)

        global stepOut1 
        stepOut1 = os.popen("adb shell dumpsys window windows |grep 'Current'").read()
        if curAppMainActivity in stepOut1:
            os.popen("adb shell input swipe 200 800 200 400 100").read()    
            time.sleep(2+random.uniform(0, 2))      
            os.popen("adb shell input tap 200 700") 
            time.sleep(4+random.uniform(0, 2))  

        global stepOut2         
        stepOut2 = os.popen("adb shell dumpsys window windows |grep 'Current'").read()
        if isActivityInList(stepOut2):
            readPageContentCount = 0                    
            while readPageContentCount < 7:  
                randomTime = 5;     
                if readPageContentCount == 0:
                    randomTime = 3      
                os.system("adb shell input swipe 200 650 200 400 100")
                time.sleep(randomTime)        
                readPageContentCount = readPageContentCount + 1
                                      
        global stepOut3                                         
        stepOut3 = os.popen("adb shell dumpsys window windows |grep 'Current'").read()
        exitCount = 0       
        while (stepOut3.find(curAppMainActivity) == -1) or (stepOut3.find(curAppStartActivity) == -1):  
            exitCount = exitCount + 100 
            os.popen("adb shell input keyevent 4")        
            time.sleep(2)           
            stepOut3 = os.popen("adb shell dumpsys window windows |grep 'Current'").read()      
            if exitCount > 5:
                break           

        if stepOut3.find(curAppMainActivity) == -1: # 有可能是意外退出
            print("重新唤醒中-------------") 
            startActivity()         
            time.sleep(10)          
    pass                                                                            
        
out = os.popen("adb devices").read()
device_list = re.sub('\tdevice', '', out[25:]).strip().split("\n")
        
for device in device_list:  
    if device:          
        toutiaoRead(device) 

实在是非常之抱歉，本人写代码不怎么习惯于书写注释。除非公司特别强调或者逻辑非常难以理解的时候，才会写点注释，如果这里有大人看不太懂的地方，请联系我QQ: 467598557，我可以做讲解，欢迎交流

附: 要跑本段代码，请保证你的USB调试模式已经开启，且手机上已经装了这些app，如果您不想安装这些app，那就把上面部分代码修改一下，仅安装您想安装的或者已经安装的就可以了。

QQ: 467598557