cdcsgit / lognote

Log viewer, Android logcat viewer for Windows, Linux, Mac

LogNote

Log viewer, Android logcat viewer for Windows, Linux, Mac

Filtered log viewer

Online / offline logcat view

Regular expression filter

Aging Test : Save split file by lines

Kotlin + swing

Run

Windows : start javaw -Dfile.encoding=utf8 -Xmx1024m -jar LogNote.jar
Linux : java -Dfile.encoding=utf8 -Xmx2048m -jar LogNote.jar
Mac : java -Dfile.encoding=utf8 -Xmx2048m -jar LogNote.jar

Config path

Save to the path set in the environment variable "LOGNOTE_HOME"
Default current path

Mode

1. Read Cmd: Read the result after executing the command (ex: adb logcat)
   • You must set the Scrollback value.
     • If the value is not set, logs pile up and occur hang.
     • Recommended - Scrollback: 100000 (approximately 10 Mbytes), enable “Split File” option
2. Read File: Read a file (File > Open, read multiple files continuously)
   • Multiple files : Drag & drop or File > Open files
   • Append files : Ctrl + drag & drop or File > append files
   • Save recent file view config on exit(filters, bookmarks)
   • Open recent files: set to saved view config
3. Follow File: Continue reading logs added to the file (ex: adb logcat > a.log, File > Follow - a.log)
   • Used when you want to read the log of processing results of commands other than adb

Shortcut keys

1. Ctrl + B: Toggle Bookmarks, multiple selected lines can be set at the same time
2. Enter: View log dialog (Show long log(with the ends cut off), select string and add to log combo(filter))
3. Ctrl+F: Show find toolbar
   • F3: Move to previous item
   • F4: Move to next item
4. Ctrl + Page Down: Go to end of the log
5. Ctrl + Page Up: Go to the beginning of the log
6. Ctrl + R : stop cmd - connect device - clear log view - start cmd
7. Ctrl + G : Go to line
8. Ctrl + ` : Focus to log combo
9. Ctrl + Del : Clear log view
10. Ctrl + T : Show trigger list panel(aging test util)

Filter combobox color tag

If enter '#' in the filter combo box, the color tag list is displayed

Filter combobox style

Setting > Filter Style : set style, color

1. Single line
2. Single line - highlight
   
3. Multi line
4. Multi line - highlight
   

Highlight color : Include text, Exclude text, Separator

Filter combobox size

Filter manager

Click : replace
Ctrl + Click : append

Search

Ctrl + F : show search bar
ESC : hide search bar
F3 : move to previous
F4 : move to next
Click Filter or Full View : Set search target view

Show process info

When mode is logcat receiving, process info is shown as a tooltip
Right click > Popup menu > Process info => Show all process list

Log format setting

In addition to logcat logs, you can also use other logs by setting the format

Log trigger - Aging test util(Ctrl-T)

When a specific log occurs, a command is executed or a dialog is displayed

Log cmd setting

Set the adb path(to view online log) and Add log cmds

Color settings

Light(default)

Dark

Setting > Appearance
Fixed-width fonts are recommended : The columns for logcat entries(time, pid, tag...) are aligned

View Control

View > Rotation - Rotate 90 degrees clockwise
View > Full Logs - Toggle show/hide full log view
Full log view > Windowed Mode - Move the view to new window

Button Icons

Save split file by lines for aging test

Each time 100000 lines are saved, it is changed to a new file

lognote's Issues

CANNOT SWITCH TO DARK MODE

when I touch apply dark mode, it revert back to light mode. even I restart the application

I touch apply and switch like this

after I touch X on setting window, it back to light mode

even I restarted the app, no changes

CANNOT RESIZE WINDOW ON SETTINGS WINDOW

the height of setting windows larger than my screen, when i swipe the border of windows, it never resized

when I swipe the border, the window goes down

LogNote constantly Freeze and had to terminate with task manager.

I don't have Java installed, i used version from portableapps and also OpenJDK platform, LogNote always freezing when using filters weather i use static log file or connect trough ADB.

Windows 10 x64.

can't filter for package name

the pid will change when app restart ,it's annoying to find the pid then change the pid. thx

lognote hangs while collecting adb logs

While adb caglogs are being collected live, and if you click on any line, the lognote would freeze and hange until the cable is removed from the device. But again you will face hangs afterwards too.

The one that was working for me fine was v0.3.0
I am tried v0.3.4 also hangs

It is a nice tool and I like it.. If there is anything that you need me to collect to figure out the hang, please let me know

I cannot find lognote.jar

Filter by tag: Inconsistency of $

Hi, thanks for the excellent log viewer.
This is a minor issue, but something annoying nonetheless.
When filtering by tag using a regex pattern, ^ always matches the beginning of the tag, but $ doesn't always match the end of it.
Example:

12-05 22:22:48.538   728  1160 I zygote  : Verified 41637 classes from mainline modules in 4.623s

Filtering by ^zygote$ correctly finds this line.
However:

12-05 22:23:37.314  1436  1753 D PackageManager: writeLegacyPermissionState for user 0 in 13 ms.

Filtering by ^PackageManager$ finds nothing.
Filtering by ^PackageManager:$ finds the line, but the : is not really part of the tag, just like it's not part of the zygote tag (filtering by ^zygote:$ or ^zygote :$ finds nothing).

Hope you can patch it up.
Thanks in any case.