How to filter Android logcat by application

Question

How can I filter Android logcat output by application  I need this because when I attach a device  I can t find the output I want due to spam from other processes

User · Answer

On Linux Un X Cygwin you can get list of all tags in project  with appended  V after each  with this command  split because readability      git grep  String s  TAG s   s          perl -ne  s   String s TAG s   s                  1 V g  amp  amp  print         sort   xargs AccelerometerListener V ADNList V Ashared V AudioDialog V BitmapUtils V         It covers tags defined both ways of defining tags   private static final String TAG    AudioDialog   private static final String TAG   SipProfileDb class getSimpleName      And then just use it for adb logcat

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If you use Eclipse you are able to filter by application just like it is possible with Android Studio as presented by shadmazumder   Just go to logcat  click on Display Saved Filters view  then add new logcat filter  It will appear the following     Then you add a name to the filter and  at by application name you specify the package of your application

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Hi I got the solution by using this     You have to execute this command from terminal  I got the result   adb logcat   grep  adb shell ps   grep com package   cut -c10-15

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Add your application s package in  Filter Name  by clicking on     button on left top corner in logcat

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put this to applog sh     bin sh PACKAGE  1 APPPID  adb -d shell ps   grep    PACKAGE     cut -c10-15   sed -e  s    g   adb -d logcat -v long      tr -d   r    sed -e             N  s  n        grep -v           grep     APPPID      then  applog sh com example my package

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to filter the logs on command line use the below script  adb logcat com yourpackage v

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Use fully qualified class names for your log tags   public class MyActivity extends Activity     private static final String TAG   MyActivity class getName        Then  Log i TAG   hi      Then use grep  adb logcat   grep com myapp

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What I usually do is have a separate filter by PID which would be the equivalent of the current session  But of course it changes every time you run the application  Not good  but it s the only way the have all the info about the app regardless of the log tag

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The Android Device Monitor application available under sdk tools monitor has a logcat option to filter  by Application Name  where you enter the application package name

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my  bash profile function  it may be of any use  logcat         if   -z   1        then         echo  Process Id argument missing    return     fi     pidFilter   b 1 b      pid   adb shell ps   egrep  pidFilter   cut -c10-15      if   -z   pid        then         echo  Process  1 is not running    return     fi     adb logcat   grep  pid    alias logcat-myapp  logcat com sample myapp    Usage     logcat-myapp    logcat com android something app

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If you could live with the fact that you log are coming from an extra terminal window  I could recommend pidcat  Take only the package name and tracks PID changes

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On my Windows 7 laptop  I use  adb logcat   find  com example name   to filter the system program related logcat output from the rest  The output from the logcat program is piped into the find command  Every line that contains  com example name  is output to the window  The double quotes are part of the find command     To include the output from my Log commands  I use the package name  here  com example name   as part of the first parameter in my Log commands like this   Log d  com example name activity1    message      Note  My Samsung Galaxy phone puts out a lot less program related output than the Level 17 emulator

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In Android Studio in the Android Monitor window  1  Select the application you want to filter 2  Select  Show only selected application

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use first parameter as your application name  Log d  your Application Name   message     and in LogCat   create Filter ---  Filter Name  amp  by Log Tag    is equal to  your Application Name  it will create new tab for your application

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On the left in the logcat view you have the  Saved Filters  windows  Here you can add a new logcat filter by Application Name  for example  com your package

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Generally  I do this command  adb shell ps  in prompt  allows to see processes running  and it s possible to discover aplication s pid  With this pid in hands  go to Eclipse and write pid XXXX  XXXX is the application pid  then logs output is filtered by this application   Or  in a easier way    in logcat view on Eclipse  search for any word related with your desired application  discover the pid  and then do a filter by pid  pid XXXX

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Edit  The original is below  When one Android Studio didn t exist  But if you want to filter on your entire application I would use pidcat for terminal viewing or Android Studio  Using pidcat instead of logcat then the tags don t need to be the application  You can just call it with pidcat com your application  You should use your own tag  look at  http   developer android com reference android util Log html   Like     Log d  AlexeysActivity   what you want to log      And then when you want to read the log use    adb logcat -s AlexeysActivity    That filters out everything that doesn t use the same tag

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I use to store it in a file            int pid   android os Process myPid            File outputFile   new File Environment getExternalStorageDirectory       logs logcat txt            try               String command    logcat   grep     pid      gt      outputFile getAbsolutePath                Process p    Runtime getRuntime   exec  su                OutputStream os   p getOutputStream                os write  command     n   getBytes  ASCII               catch  IOException e                e printStackTrace

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This is probably the simplest solution    On top of a solution from Tom Mulcahy  you can further simplify it like below   alias logcat  adb logcat   grep  adb shell ps   egrep   bcom your package name b    cut -c10-15     Usage is easy as normal alias  Just type the command in your shell   logcat   The alias setup makes it handy  And the regex makes it robust for multi-process apps  assuming you care about the main process only    Of coz you can set more aliases for each process as you please  Or use hegazy s solution      In addition  if you want to set logging levels  it is  alias logcat-w  adb logcat   W   grep  adb shell ps   egrep   bcom your package name b    cut -c10-15

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I have found an app on the store which can show the name   process of a log  Since Android Studio just puts a     on the logs being generated by the other processes  I found it useful to know which process is generating this log  But still this app is missing the filter by the process name  You can find it here

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I am working on Android Studio  there is a nice option to get the message using package name  On the  Edit Filter Configuration  you can create a new filter by adding your package name on the  by package name

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Suppose your application named MyApp contains the following components    MyActivity1 MyActivity2 MyActivity3 MyService   In order to filter the logging output from your application MyApp using logcat you would type the following   adb logcat MyActivity1 v MyActivity2 v MyActivity3 v MyService v   s   However this requires you to know the TAG names for all of the components in your application rather than filtering using the application name MyApp  See logcat for specifics   One solution to allow filtering at the application level would be to add a prefix to each of your unique TAG s    MyAppActivity1 MyAppActivity2 MyAppActivity3 MyAppService   Now a wild card filter on the logcat output can be performed using the TAG prefix    adb logcat   grep MyApp   The result will be the output from the entire application

User · Answer

According to http   developer android com tools debugging debugging-log html      Here s an example of a filter expression that suppresses all log messages except those with the tag  ActivityManager   at priority  Info  or above  and all log messages with tag  MyApp   with priority  Debug  or above    adb logcat ActivityManager I MyApp D   S     The final element in the above expression    S  sets the priority level for all tags to  silent   thus ensuring only log messages with  View  and  MyApp  are displayed     V     Verbose  lowest priority  D     Debug I     Info W     Warning E     Error F     Fatal S     Silent  highest priority  on which nothing is ever printed

User · Answer

The log cat output can be filtered to only display messages from your package by using these arguments   adb com your package I   s  Edit - I spoke to soon   adb com your package v

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When we get some error from our application  Logcat will show session filter automatically  We can create session filter by self  Just add a new logcat filter  fill the filter name form  Then fill the by application name with your application package   for example   my application is  Adukan  and the package is  com adukan   so I fill by application name with application package  com adukan

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you can achieve this in Eclipse logcat by entering the following to the search field   app com example myapp   com example myapp is the application package name

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Yes now you will get it automatically     Update to AVD 14  where the logcat will automatic session filter where it filter log in you specific app  package

[android] How to filter Android logcat by application?

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