[Reprinted] records of commonly used Debugging techniques for Android development and android debugging

[Reprinted] records of commonly used Debugging techniques for Android development and android debugging

• ANDROID debugging technology:

• 1) Ps command

• Ls-l/proc/27/

• The cat/proc/27/cmdline # cmdline file indicates the command line of the process.

• The cat/proc/27/status # status file indicates that information about the process is obtained. # Stat contains more information, but it is difficult to read.

• The cat/proc/27/task # task file indicates the process information.

• 2) Run vmstat to view the virtual memory statistics.

• 3) top statistics on CPU consumption

• 4) dumpstat dumpsys

• # Adb shell dumpstat | grep CPU

• 5) dmesg

• 6) ioctl

• Ioctl-l 16-r/dev/graphics/fb0 0x4600

• Android-specific Debugging commands:

• 1) netcfg

• 2) service

• 1. service list

• Lists All running services on the local machine.

• Service call:

• Service call phone <span style = "color: # FF0000;"> 2 </span> s16 "123"

• Service call isms <span style = "color: # FF0000;"> 4 </span> s16 "12345678" s16 "" s16 "hello world! "S16" "s16 ""

• 3) am

• # Am start-n com. android. music/com. android. music. MusicBrowserActivity

• # Am start-n com. android. music/com. android. music. VideoBrowserActivity

• # Am start-n com. android. music/com. android. music. MediaPlaybackActivity

• The start method of Camera (Camera) is as follows:

• # Am start-n com. android. camera/com. android. camera. Camera

• Browser is started as follows:

• # Am start-n com. android. browser/com. android. browser. BrowserActivity

• Start the browser:

• Am start-a android. intent. action. VIEW-d http://www.google.cn/

• Call number:

• Am start-a android. intent. action. CALL-d tel: 10086

• Start google map to go directly to Beijing:

• Am start-a android. intent. action. VIEW geo: 0, 0? Q = beijing

• Appendix: android shell table

• Dumpcrash

• Sh

• Date

• Am

• Hciattach

• Dd

• Dumpstate

• Sdptool

• Cmp

• Input

• Logcat

• Cat

• Itr

• Servicemanager

• Dmsg

• Monkey

• Alibaba-daemon

• Df

• Pm

• Debug_tool

• Getevent

• Svc

• Flash_image

• Getprop

• Ssltest

• Installd

• Hd

• Debugadh

• Dvz

• Id

• Dhcpcd

• Hostapd

• Ifconfig

• Hostapd_cli

• Htclogkernel

• Insmod

• Fillup

• Mountd

• Ioctl

• Linker

• Qemud

• Kill

• Logwrapper

• Radiooptions

• Ln

• Telnetd

• Toolbox

• Log

• Iftop

• Hcid

• Lsmod

• Mkdosfs

• Route

• Ls

• Mount

• Setprop

• Mkdir

• Mv

• Sleep

• Dumpsys

• Notify

• Setconsole

• Service

• Netstat

• Smd

• Playmp3

• Printenv

• Stop

• Sdutil

• Reboot

• Top

• Rild

• Ps

• Start

• Dalvikvm

• Renice

• Umount

• Dexopt

• Rm

• Vmstat

• Surfaceflinger

• Rmdir

• Wipe

• App_process

• Rmmod

• Watchprops

• Mediaserver

• Sendevent

• Sync

• System_server

• Schedtop

• Netcfg

• Ping

• Chmod

Common debugging methods in Android Development

You can enter the required string or expression (in the string form) in the brackets of log. I () where you want to view the information ). Then, you can see in logcat whether the sentence is executed or whether the obtained information is the information you want.

How to debug android Development

Generally, you can handle minor errors in logCat as prompted. Sometimes you need to debug and set a breakpoint line by line. errors are generally the same as developing java programs.