原理：從系統的各種配置文件中讀取信息。
init.rc
default.prop
/system/build.prop
| $ adb shell getprop | getprop 查看機器的全部信息參數 |
| af.policy.r_submix_prio_adjust | |
| bgw.current3gband | |
| bwc.mm.VideoDecodeCodec | |
| bwc.mm._Profile | |
| camera.open | |
| curlockscreen | |
| dalvik.vm.heapgrowthlimit | |
| dalvik.vm.heapmaxfree | |
| dalvik.vm.heapminfree | |
| dalvik.vm.heapsize | |
| dalvik.vm.heaptargetutilization | |
| dalvik.vm.mtk-stack-trace-file | |
| dalvik.vm.mtk-vm-version | |
| dalvik.vm.stack-trace-file | |
| debug.MB.running | |
| debug.force_rtl | |
| debug.hwc.compose_level | |
| debug.log2sd.defaultpath | |
| debug.mdlogger.Running | |
| debug.mtklog.netlog.Running | |
| debug.sf.busyswap | |
| debug.st.aux_support | |
| dev.bootcomplete | |
| dhcp.ipv6.wlan0.dns1 | |
| dhcp.ipv6.wlan0.dns2 | |
| dhcp.ipv6.wlan0.ipaddress | |
| dhcp.ipv6.wlan0.leasetime | |
| dhcp.ipv6.wlan0.result | |
| dhcp.wlan0.dns1 | |
| dhcp.wlan0.dns2 | |
| dhcp.wlan0.dns3 | |
| dhcp.wlan0.dns4 | |
| dhcp.wlan0.domain | |
| dhcp.wlan0.gateway | |
| dhcp.wlan0.ipaddress | 獲得IP |
| dhcp.wlan0.leasetime | |
| dhcp.wlan0.mask | |
| dhcp.wlan0.mtu | |
| dhcp.wlan0.pid | |
| dhcp.wlan0.reason | |
| dhcp.wlan0.result | |
| dhcp.wlan0.server | |
| dhcp.wlan0.vendorInfo | |
| drm.service.enabled | |
| external_sd_path | |
| fmradio.driver.enable | |
| gsm.3gswitch | |
| gsm.baseband.capability | |
| gsm.current.phone-type | |
| gsm.enbr.rat | |
| gsm.gcf.testmode | |
| gsm.network.type | |
| gsm.operator.alpha | |
| gsm.operator.iso-country | |
| gsm.operator.isroaming | |
| gsm.operator.numeric | |
| gsm.phone.created | |
| gsm.project.baseband | |
| gsm.ril.eboot | |
| gsm.ril.uicctype | |
| gsm.roaming.indicator.needed.2 | |
| gsm.roaming.indicator.needed | |
| gsm.serial | |
| gsm.sim.operator.default-name | |
| gsm.sim.retry.pin1 | |
| gsm.sim.retry.pin2 | |
| gsm.sim.retry.puk1 | |
| gsm.sim.retry.puk2 | |
| gsm.sim.ril.phbready | |
| gsm.sim.state | |
| gsm.siminfo.ready | |
| gsm.version.baseband | |
| gsm.version.ril-impl | |
| init.svc.DMAgent | |
| init.svc.MtkCodecService | |
| init.svc.NvRAMAgent | |
| init.svc.PPLAgent | |
| init.svc.adbd | |
| init.svc.afmsvr | |
| init.svc.agpsd | |
| init.svc.autokd | |
| init.svc.backgrounddata | |
| init.svc.batterywarning | |
| init.svc.bootanim | |
| init.svc.bootlogoupdater | |
| init.svc.bwc | |
| init.svc.conn_launcher | |
| init.svc.custom_sn | |
| init.svc.debuggerd | |
| init.svc.dhcpcd_wlan0 | |
| init.svc.drm | |
| init.svc.drvbd | |
| init.svc.eemcs_fsd | |
| init.svc.eemcs_mdinit | |
| init.svc.emcsmdlogger | |
| init.svc.emsvr_user | |
| init.svc.enableswap | |
| init.svc.flash_recovery | |
| init.svc.fuse_sdcard1 | |
| init.svc.gsm0710muxd | |
| init.svc.healthd | |
| init.svc.installd | |
| init.svc.keystore | |
| init.svc.matv | |
| init.svc.media | |
| init.svc.mobile_log_d | |
| init.svc.msensord | |
| init.svc.mtkbt | |
| init.svc.nac_server | |
| init.svc.nac_ue | |
| init.svc.netd | |
| init.svc.netdiag | |
| init.svc.nvram_daemon | |
| init.svc.nvram_proximity | |
| init.svc.p2p_supplicant | |
| init.svc.poad | |
| init.svc.pq | |
| init.svc.ril-daemon | |
| init.svc.sbchk | |
| init.svc.sdcard | |
| init.svc.servicemanager | |
| init.svc.sn | |
| init.svc.surfaceflinger | |
| init.svc.terservice | |
| init.svc.thermal | |
| init.svc.thermal_manager | |
| init.svc.thermald | |
| init.svc.ueventd | |
| init.svc.vold | |
| init.svc.vtservice | |
| init.svc.wlanLoader | |
| init.svc.wmtLoader | |
| init.svc.writeconfig | |
| init.svc.xlogboot | |
| init.svc.xlogdebugchanged | |
| init.svc.zygote | |
| internal_sd_path | |
| launcherplus.allappsgrid | |
| media.wfd.video-format | |
| mediatek.extmd.usbport | |
| mediatek.wlan.chip | |
| mediatek.wlan.ctia | |
| mediatek.wlan.module.postfix | |
| mtk_wifi.fw_path | |
| mux.report.case | |
| net.bt.name | |
| net.change | |
| net.dns1 | |
| net.dns2 | |
| net.dns3 | |
| net.dns4 | |
| net.hostname | |
| net.qtaguid_enabled | |
| net.tcp.buffersize.default | |
| net.tcp.buffersize.edge | |
| net.tcp.buffersize.gprs | |
| net.tcp.buffersize.hsdpa | |
| net.tcp.buffersize.hspa | |
| net.tcp.buffersize.hspap | |
| net.tcp.buffersize.hsupa | |
| net.tcp.buffersize.lte | |
| net.tcp.buffersize.umts | |
| net.tcp.buffersize.wifi | |
| nvram_init | |
| persist.backgrounddata.enable | |
| persist.bootanim.mp4done | |
| persist.bt.fwdump | |
| persist.clearMotion.fblevel.bdr | |
| persist.clearMotion.fblevel.nrm | |
| persist.first_boot | |
| persist.gemini.sim_num | |
| persist.ipo.shutdown.process.wl | |
| persist.lenovo.fmradio.rds | |
| persist.lenovo.ltetype | |
| persist.mtk.aee.aed | |
| persist.mtk.anr.mechanism | |
| persist.mtk.wcn.combo.chipid | |
| persist.radio.default_sim_mode | |
| persist.radio.fd.counter | |
| persist.radio.fd.off.counter | |
| persist.radio.fd.off.r8.counter | |
| persist.radio.fd.r8.counter | |
| persist.radio.ia-apn | |
| persist.radio.ia | |
| persist.ril.cfu.querytype | |
| persist.service.acm.enable | |
| persist.service.adb.enable | |
| persist.sys.afmsvr | |
| persist.sys.bubble2_tips_show | |
| persist.sys.dalvik.vm.lib | |
| persist.sys.disp.pq.gammaidx | |
| persist.sys.disp.pq.pqparamidx | |
| persist.sys.display.clearMotion | |
| persist.sys.first_time_boot | |
| persist.sys.ideadesk_theme_name | |
| persist.sys.input.area | |
| persist.sys.mute.state | |
| persist.sys.profiler_ms | |
| persist.sys.timezone | |
| persist.sys.usb.config | |
| ril.active.md | |
| ril.current.share_modem | |
| ril.ecclist | |
| ril.external.md | |
| ril.fd.mode | |
| ril.first.md | |
| ril.flightmode.poweroffMD | |
| ril.iccid.sim1 | |
| ril.ipo.radiooff | |
| ril.radiooff.poweroffMD | |
| ril.ready.sim | |
| ril.specific.sm_cause | |
| ril.telephony.mode | |
| rild.libargs | |
| rild.libpath | |
| ro.adb.secure | |
| ro.allow.mock.location | |
| ro.audio.silent | |
| ro.baseband | |
| ro.board.platform | 主板平臺 |
| ro.boot.serialno | |
| ro.bootloader | 查看SPL（Hboot）版本號 |
| ro.bootmode | |
| ro.btstack | |
| ro.build.characteristics | |
| ro.build.date.utc | |
| ro.build.date | 製作者及製作時間 |
| ro.build.description | 用戶的KEY |
| ro.build.display.id | |
| ro.build.fingerprint | 系統指紋 |
| ro.build.flavor | |
| ro.build.host | 編譯主機系統 |
| ro.build.id | |
| ro.build.product | 建立產品 |
| ro.build.tags | 編譯標籤 |
| ro.build.type | 編譯模式,如user,userdebug,eng,test模式 |
| ro.build.user | 編譯賬戶 |
| ro.build.version.codename | 版本代號 |
| ro.build.version.incremental | 版本增量 |
| ro.build.version.release | Android系統版本 |
| ro.build.version.sdk | sdk版本 |
| ro.camera.sound.forced | |
| ro.com.google.clientbase | |
| ro.com.lenovo.smart.config | |
| ro.config.alarm_alert | |
| ro.config.low_ram | |
| ro.config.notification_sound | |
| ro.config.ringtone | |
| ro.config.ringtone_2 | |
| ro.config.sms_notifi_sound | |
| ro.config.sms_notifi_sound_2 | |
| ro.crypto.fs_flags | |
| ro.crypto.fs_mnt_point | |
| ro.crypto.fs_options | |
| ro.crypto.fs_real_blkdev | |
| ro.crypto.fs_type | |
| ro.crypto.fuse_sdcard | |
| ro.crypto.state | |
| ro.custom.build.version | |
| ro.debuggable | |
| ro.factorytest | |
| ro.gemini.smart_3g_switch | |
| ro.gemini.smart_sim_switch | |
| ro.hardware | 查看機器板子代號 |
| ro.lenovo.adb | |
| ro.lenovo.bqb | |
| ro.lenovo.cta | |
| ro.lenovo.device | |
| ro.lenovo.operator | |
| ro.lenovo.platform | |
| ro.lenovo.region | |
| ro.lenovo.signalbars | |
| ro.lenovo.sim | |
| ro.lenovo.videocall | |
| ro.lenovo.wificert | |
| ro.lte.dc.support | |
| ro.mediatek.chip_ver | |
| ro.mediatek.gemini_support | |
| ro.mediatek.platform | |
| ro.mediatek.version.branch | |
| ro.mediatek.version.release | |
| ro.mediatek.version.sdk | |
| ro.mediatek.wlan.p2p | |
| ro.mediatek.wlan.wsc | |
| ro.mount.fs | |
| ro.mtk.hardware | |
| ro.mtprof.disable | |
| ro.opengles.version | |
| ro.persist.partition.support | |
| ro.product.board | 採用的處理器 |
| ro.product.brand | 手機品牌 |
| ro.product.cpu.abi2 | cpu的品牌 |
| ro.product.cpu.abi | cpu的版本 |
| ro.product.device | 採用的設備 |
| ro.product.hw.version | |
| ro.product.locale.language | 手機默認語言 |
| ro.product.locale.region | 地區語言 |
| ro.product.manufacturer | 手機製造商 |
| ro.product.model | 內部手機代號 |
| ro.product.name | 手機正式名稱 |
| ro.product.ota.model | |
| ro.product.particular.version | |
| ro.product.sw.internal.version | |
| ro.revision | |
| ro.runtime.firstboot | |
| ro.secure | |
| ro.serialno | 查看機器的SN號 |
| ro.setupwizard.mode | |
| ro.sf.hwrotation | |
| ro.sf.lcd_density | 屏幕密度 |
| ro.sys.usb.bicr | |
| ro.sys.usb.charging.only | |
| ro.sys.usb.mtp.whql.enable | |
| ro.sys.usb.storage.type | |
| ro.wifi.channels | WIFI連接的渠道 |
| ro.zygote.preload.enable | |
| service.bootanim.exit | |
| service.sf.status | |
| streamout.lowlatency.allow | |
| sys.autok.is_done | |
| sys.boot.reason | |
| sys.boot_completed | |
| sys.customsn.showcode | |
| sys.display.clearMotion.dimmed | |
| sys.ipo.pwrdncap | |
| sys.ipowin.done | |
| sys.lenovo.romui.version.sdk | |
| sys.md5.state | |
| sys.settings_global_version | |
| sys.settings_system_version | |
| sys.sysctl.extra_free_kbytes | |
| sys.usb.config | |
| sys.usb.mtpConnect | |
| sys.usb.state | |
| sys.usb.vid | |
| ter.service.enable | |
| vold.post_fs_data_done | |
| vold_swap_state | |
| wfd.dummy.enable | |
| wifi.direct.interface | |
| wifi.interface | |
| wifi.tethering.interface | |
| wlan.driver.status | |
| wlan.wfd.security.image |
