Android system folder structure

/System/APP
This mainly stores applications that are routinely downloaded. You can see that all files end with the APK format. The program in this folder is the default component of the system. The installed software will not appear here, but in the/data/folder. The following is a detailed introduction:
/System/APP/alarmclock.apk alarm clock
/System/APP/alarmclock. odex
/System/APP/browser.apk Browser
/System/APP/browser. odex
/System/APP/bugreport.apk bug report
/System/APP/bugreport. odex
/System/APP/calculator.apk Calculator
/System/APP/calculator. odex
/System/APP/calendar.apk calendar
/System/APP/calendar. odex
/System/APP/calendarprovider.apk calendar
/System/APP/calendarprovider. odex
/System/APP/camera.apk camera
/System/APP/camera. odex
/System/APP/com.amazon.mp3.apk Amazon music
/System/APP/contacts.apk contact
/System/APP/contacts. odex
/System/APP/downloadprovider.apk
/System/APP/downloadprovider. odex
/System/APP/drmprovider.apk DRM
/System/APP/drmprovider. odex
/System/APP/email.apk email client
/System/APP/email. odex
/System/APP/fieldtest.apk Test Program
/System/APP/fieldtest. odex
/System/APP/gdatafeedsprovider.apk googledata
/System/APP/gdatafeedsprovider. odex
/System/APP/gmail.apk Gmail email
/System/APP/Gmail. odex
/System/APP/gmailprovider.apk provided by Gmail
/System/APP/gmailprovider. odex
/System/APP/googleapps.apk Google package
/System/APP/googleapps. odex
/System/APP/googlesearch.apk search tool
/System/APP/googlesearch. odex
/System/APP/gtalkservice.apk Gtalk Service
/System/APP/gtalkservice. odex
/System/APP/htmlviewer.apk HTML Viewer
/System/APP/htmlviewer. odex
/System/APP/im.apk
/System/APP/imcredentialprovider.apk
/System/APP/improvider.apk
/System/APP/improvider. odex
/System/APP/launcher.apk start Loader
/System/APP/launcher. odex
/System/APP/maps.apk Electronic Map
/System/APP/maps. odex
/System/APP/mediaprovider.apk multimedia playback
/System/APP/mediaprovider. odex
/System/APP/mms.apk SMS and MMS
/System/APP/MMS. odex
/System/APP/music.apk music player
/System/APP/music. odex
/System/APP/myfaves.apk T-Mobile myfaves Program
/System/APP/myfaves. odex
/System/APP/packageinstaller.apk APK Installer
/System/APP/packageinstaller. odex
/System/APP/phone.apk dialing device
/System/APP/phone. odex
/System/APP/settings.apk system settings
/System/APP/settings. odex
/System/APP/settingsprovider.apk
/System/APP/settingsprovider. odex
/System/APP/setupwizard.apk setting wizard
/System/APP/setupwizard. odex
/System/APP/soundrecorder.apk recording tool
/System/APP/soundrecorder. odex
/System/APP/street.apk street view map
/System/APP/street. odex
/System/APP/sync.apk synchronization Program
/System/APP/Sync. odex
/System/APP/talk.apk speech program
/System/APP/talk. odex
/System/APP/telephonyprovider.apk
/System/APP/telephonyprovider. odex
/System/APP/updater.apk update program
/System/APP/Updater. odex
/System/APP/vending.apk manufacturer information
/System/APP/vending. odex
/System/APP/voicedialer.apk voice dial
/System/APP/voicedialer. odex
/System/APP/youtube.apk YouTube video
/System/APP/YouTube. odex

[Nextpage]

 

/System/bin
The files in this directory are all local programs of the system. From the bin folder name, we can see that they are binary programs, which are mainly components of the Linux system, the Android mobile phone network provides a brief analysis of the main files:
/System/bin/akmd
/System/bin/AM
/System/bin/app_process system process
/System/bin/dalvikvm Dalvik VM host
/System/bin/container-daemon system bus monitoring
/System/bin/debugadh Debugger
/System/bin/debug_tool
/System/bin/dexopt Dex Option
/System/bin/dhcpcd DHCP server
/System/bin/dumpstate status capture failed
/System/bin/dumpsys
/System/bin/dvz
/System/bin/fillup
/System/bin/flash_image flash Image
/System/bin/hciattach
/System/bin/hcid Kernel
/System/bin/hostapd
/System/bin/hostapd_cli
/System/bin/htclogkernel
/System/bin/Input
/System/bin/installd
/System/bin/itr
/System/bin/linker
/System/bin/logcat log Printing
/System/bin/logwrapper
/System/bin/mediaserver
/System/bin/monkey
/System/bin/mountd storage mounts
/System/bin/netcfg network settings
/System/bin/Ping program
/System/bin/playmp3 MP3 player
/System/bin/PM Package Manager
/System/bin/qemud qemu VM
/System/bin/radiooptions wireless options
/System/bin/rild RIL component
/System/bin/sdptool
/System/bin/sdutil
/System/bin/service
/System/bin/servicemanager Service Manager
/System/bin/sh
/System/bin/ssltest SSL Test
/System/bin/surfaceflinger touch sensor driver
/System/bin/svc Service
/System/bin/system_server
/System/bin/telnetd Telnet component
/System/bin/toolbox
/System/bin/wlan_loader
/System/bin/wpa_cli
/System/bin/wpa_supplicant

[Nextpage]

 

/System/etc
From the folder name, the system configuration files are saved, such as the core configuration of the APN Access Point settings.
/System/etc/apns-conf.xml APN Access Point configuration file
/System/etc/audiofilter.csv audio filter configuration file
/System/etc/audiopara4.csv
/System/etc/bookmarks. xml bookmarks Database
/System/etc/monitoring. conf bus monitoring configuration file
/System/etc/dhcpcd
/System/etc/event-log-tags
/System/etc/favorites. xml favorites
/System/etc/firmware information
/System/etc/GPS. conf GPS setting file
/System/etc/hcid. conf kernel hcid configuration file
/System/etc/hosts network DNS Cache
/System/etc/init. Goldfish. Sh
/System/etc/location positioning
/System/etc/mountd. conf stores the mounting configuration file
/System/etc/notice.html prompt webpage
/System/etc/permissions. xml permission
/System/etc/pvplayer. conf
/System/etc/security
/System/etc/Wi-Fi Components
/System/etc/dhcpcd-hooks
/System/etc/dhcpcd-run-hooks
/System/etc/dhcpcd. conf
/System/etc/dhcpcd-hooks/01-test
/System/etc/dhcpcd-hooks/20-dns.conf
/System/etc/dhcpcd-hooks/95-configured
/System/etc/firmware/brf6300.bin
/System/etc/location/GPS
/System/etc/location/GPS/location positioning
/System/etc/location/GPS/nmea gps data parsing
/System/etc/location/GPS/Properties
/System/etc/security/cacerts. BKS
/System/etc/security/otacerts.zip OTA download Verification
/System/etc/WiFi/fw1251r1c. Bin
/System/etc/WiFi/tiwlan. ini
/System/etc/WiFi/wpa_supplicant.conf WPA verification component

[Nextpage]

 

/System/Fonts
Font folder, in addition to the standard font, bold, and italic, you can see that the largest file size may be a Chinese font, or some Unicode font, from T-Mobile G1, we can clearly see that the display of Simplified Chinese is normal, among which droidsansfallback. TTF File Size
/System/fonts/DroidSans-Bold.ttf
/System/fonts/droidsans. TTF
/System/fonts/droidsansfallback. TTF
/System/fonts/droidsansmono. TTF
/System/fonts/DroidSerif-Bold.ttf
/System/fonts/DroidSerif-BoldItalic.ttf
/System/fonts/DroidSerif-Italic.ttf
/System/fonts/DroidSerif-Regular.ttf
/System/framework
The framework is mainly a number of core files. It can be seen from the suffix jar that it is a system platform framework.
/System/framework/AM. Jar
/System/framework/AM. odex
/System/framework/Android. AWT. Jar AWT Library
/System/framework/Android. AWT. odex
/System/framework/Android. Policy. Jar
/System/framework/Android. Policy. odex
/System/framework/Android. Test. Runner. Jar
/System/framework/Android. Test. Runner. odex
/System/framework/COM. Google. Android. gtalkservice. Jar Gtalk Service
/System/framework/COM. Google. Android. gtalkservice. odex
/System/framework/COM. Google. Android. Maps. Jar Image Library
/System/framework/COM. Google. Android. Maps. odex
/System/framework/CORE. Jar core library, first load this
/System/framework/CORE. odex
/System/framework/EXT. Jar
/System/framework/EXT. odex
/System/framework/framework-res.apk
/System/framework/framework-tests.jar
/System/framework/framework-tests.odex
/System/framework. Jar
/System/framework. odex
/System/framework/input. Jar input Library
/System/framework/input. odex
/System/framework/itr. Jar
/System/framework/itr. odex
/System/framework/monkey. Jar
/System/framework/monkey. odex
/System/framework/PM. jar package management library
/System/framework/PM. odex
/System/framework/services. Jar
/System/framework/services. odex
/System/framework/ssltest. Jar
/System/framework/ssltest. odex
/System/framework/svc. Jar System Service
/System/framework/svc. odex