How to get Android crash logs

Question

I have an app that is not in the market place  signed with a debug certificate   but would like to get crash log data  whenever my application crashes  Where can I find a log of why my app crashed

User · Answer

I have created this library to solve all your problems. Crash Reporter is a handy tool to capture all your crashes and log them in device locally

Just add this dependency and you're good to go.

compile 'com.balsikandar.android:crashreporter:1.0.1'

Find all your crashes in device locally and fix them at your convenience. Crashes are saved using date and time format easy to track. Plus it also provides API for capture Logged Exceptions using below method.

CrashRepoter.logException(Exception e)

User · Answer

If you re just looking for the crash log while your phone is connected to the computer  use the DDMS view in Eclipse and the report is right there in LogCat within DDMS when your app crashes while debugging

User · Answer

Use acra crash reporter for android app  Acra lib

User · Answer

Here is a solution that can help you dump all the logs onto a text file  adb logcat -d  gt  logs txt

User · Answer

Try Carsh log app from android   use the link to download app

User · Answer

You can use Apphance  This is a cross-platform service  now mainly Android  iOS with other platforms on their way  which allows to debug remotely any mobile device  Android  iOS now - others under development   It s much more than just a crashlog  in fact it is much more  logging  reporting of problems by testers  crashlogs  It takes about 5 minutes to integrate  Currently you can request for access to closed beta   Disclaimer  I am CTO of Polidea  a company behind Apphance and co-creator of it   Update  Apphance is no longer closed beta  Update 2  Apphance is available as part of http   applause com offering

User · Answer

You can use ACRA from this  Including this library to your projects and configuring it  you could receive  into your email or gdocs  their crash reports  Sorry for my bad English

User · Answer

The way to do this is to implement the Thread UncaughtExceptionHandler interface and pass it to Thread setDefaultUncaughtExceptionHandler   at the beginning of your Activity s onCreate                                                                                 Here is the implementation class TopExceptionHandler   public class TopExceptionHandler implements Thread UncaughtExceptionHandler       private Thread UncaughtExceptionHandler defaultUEH      private Activity app   null       public TopExceptionHandler Activity app            this defaultUEH   Thread getDefaultUncaughtExceptionHandler            this app   app             public void uncaughtException Thread t  Throwable e            StackTraceElement   arr   e getStackTrace            String report   e toString     n n           report     --------- Stack trace --------- n n           for  int i 0  i lt arr length  i                  report           arr i  toString     n                     report     ------------------------------- n n               If the exception was thrown in a background thread inside            AsyncTask  then the actual exception can be found with getCause          report     --------- Cause --------- n n           Throwable cause   e getCause            if cause    null                report    cause toString       n n               arr   cause getStackTrace                for  int i 0  i lt arr length  i                      report           arr i  toString     n                                   report     ------------------------------- n n            try               FileOutputStream trace   app openFileOutput  stack trace                                                            Context MODE PRIVATE               trace write report getBytes                 trace close              catch IOException ioe                                      defaultUEH uncaughtException t  e             Note  We let the Android framework s defaultUEH to handle it   At the top of your Activity register an instance of above class like this    Override public void onCreate Bundle savedInstanceState    super onCreate savedInstanceState    Thread setDefaultUncaughtExceptionHandler new TopExceptionHandler this          This handler saves the trace in a file  When ReaderScope restarts next time  it detects the file and prompts the user if he she wants to email it to the developer   To Email the Stack Trace  execute following code to pack it in an email    try       BufferedReader reader   new BufferedReader          new InputStreamReader ReaderScopeActivity this openFileInput  stack trace          while  line   reader readLine       null            trace    line   n           catch FileNotFoundException fnfe                 catch IOException ioe                  Intent sendIntent   new Intent Intent ACTION SEND   String subject    Error report   String body    Mail this to appdeveloper gmail com        n    trace     n    sendIntent putExtra Intent EXTRA EMAIL  new String     readerscope altcanvas com     sendIntent putExtra Intent EXTRA TEXT  body   sendIntent putExtra Intent EXTRA SUBJECT  subject   sendIntent setType  message rfc822     ReaderScopeActivity this startActivity Intent createChooser sendIntent   Title       ReaderScopeActivity this deleteFile  stack trace      Or you can also use ACRA Error Reporting System Just Include the ACRA jar in your project libs and use the below code snippet before your launcher activity class declaration   ReportsCrashes formKey       mailTo    abc gmail com def yahoo com   mode   ReportingInteractionMode SILENT     or You can try this from console -  adb logcat -b crash

User · Answer

This is from http   www herongyang com Android Debug-adb-logcat-Command-Debugging html  You can use adb    adb logcat AndroidRuntime E   S

User · Answer

1  Plug in Phone through USB  w  Developer Debugging options enabled   2  Open Terminal and Navigate to your Android SDK  for Mac    cd   Library Android sdk platform-tools  3  Logcat from that directory  in your terminal  to generate a constant flow of logs  for Mac      adb logcat  4  Open your app that crashes to generate crash logs  5  Ctrl C to stop terminal and look for the logs associated with the app that crashes   It may say something like the following   AndroidRuntime  FATAL EXCEPTION  main

User · Answer

If you are looking for a basic crash reporting tool  try crashlytics   If you want a more advanced reporting tool  Checkout Gryphonet  It logs all the crashes occured along with the exact line of code that caused the crash along with automated markers that show you the steps the user took prior to the crash and more   Good luck

User · Answer

If you re using Eclipse  make sure you use debug and not run  Make sure you are in the debug perspective  top right  You may have to hit  Resume   F8  a few times for the log to print  The crash log will be in the Logcat window at the bottom- double click for fullscreen and make sure you scroll to the bottom  You ll see red text for errors  the crash trace will be something like   09-04 21 35 15 228  ERROR AndroidRuntime 778   Uncaught handler  thread main exiting due to uncaught exception 09-04 21 35 15 397  ERROR AndroidRuntime 778   java lang RuntimeException  Unable to start activity ComponentInfo com dazlious android helloworld com dazlious android helloworld main   java lang ArrayIndexOutOfBoundsException 09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread performLaunchActivity ActivityThread java 2268   09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread handleLaunchActivity ActivityThread java 2284  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread access 1800 ActivityThread java 112  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread H handleMessage ActivityThread java 1692  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android os Handler dispatchMessage Handler java 99  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android os Looper loop Looper java 123  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread main ActivityThread java 3948  09-04 21 35 15 397  ERROR AndroidRuntime 778       at java lang reflect Method invokeNative Native Method  09-04 21 35 15 397  ERROR AndroidRuntime 778       at java lang reflect Method invoke Method java 521  09-04 21 35 15 397  ERROR AndroidRuntime 778       at com android internal os ZygoteInit MethodAndArgsCaller run ZygoteInit java 782  09-04 21 35 15 397  ERROR AndroidRuntime 778       at com android internal os ZygoteInit main ZygoteInit java 540  09-04 21 35 15 397  ERROR AndroidRuntime 778       at dalvik system NativeStart main Native Method  09-04 21 35 15 397  ERROR AndroidRuntime 778   Caused by  java lang ArrayIndexOutOfBoundsException 09-04 21 35 15 397  ERROR AndroidRuntime 778       at com example android helloworld main onCreate main java 13  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app Instrumentation callActivityOnCreate Instrumentation java 1123  09-04 21 35 15 397  ERROR AndroidRuntime 778       at android app ActivityThread performLaunchActivity ActivityThread java 2231  09-04 21 35 15 397  ERROR AndroidRuntime 778           11 more   The important parts for this one are   09-04 21 35 15 397  ERROR AndroidRuntime 778   Caused by  java lang ArrayIndexOutOfBoundsException 09-04 21 35 15 397  ERROR AndroidRuntime 778       at com example android helloworld main onCreate main java 13    those tell us it was an array out of bounds exception on on line 13 of main java in the onCrate method

User · Answer

If your app is being downloaded by other people and crashing on remote devices  you may want to look into an Android error reporting library  referenced in this SO post    If it s just on your own local device  you can use LogCat   Even if the device wasn t connected to a host machine when the crash occurred  connecting the device and issuing an adb logcat command will download the entire logcat history  at least to the extent that it is buffered which is usually a loooot of log data  it s just not infinite    Do either of those options answer your question   If not can you attempt to clarify what you re looking for a bit more

User · Answer

Base on this POST  use this class as replacement of  TopExceptionHandler   class TopExceptionHandler implements Thread UncaughtExceptionHandler   private Thread UncaughtExceptionHandler defaultUEH  private Activity app   null  private String line   public TopExceptionHandler Activity app        this defaultUEH   Thread getDefaultUncaughtExceptionHandler        this app   app     public void uncaughtException Thread t  Throwable e            StackTraceElement   arr   e getStackTrace        String report   e toString     n n       report     --------- Stack trace --------- n n       for  int i 0  i lt arr length  i              report           arr i  toString     n             report     ------------------------------- n n           If the exception was thrown in a background thread inside        AsyncTask  then the actual exception can be found with getCause      report     --------- Cause --------- n n       Throwable cause   e getCause        if cause    null            report    cause toString       n n           arr   cause getStackTrace            for  int i 0  i lt arr length  i                  report           arr i  toString     n                       report     ------------------------------- n n        try           FileOutputStream trace   app openFileOutput  stack trace                   Context MODE PRIVATE           trace write report getBytes             trace close               Intent i   new Intent Intent ACTION SEND           i setType  message rfc822            i putExtra Intent EXTRA EMAIL    new String    kevineyni gmail com             i putExtra Intent EXTRA SUBJECT   crash report azar            String body    Mail this to kevineyni gmail com        n    trace     n           i putExtra Intent EXTRA TEXT     body           try               startActivity Intent createChooser i   Send mail                  catch  android content ActivityNotFoundException ex                  Toast makeText MyActivity this   There are no email clients installed    Toast LENGTH SHORT  show                              ReaderScopeActivity this startActivity Intent createChooser sendIntent   Title                 ReaderScopeActivity this deleteFile  stack trace           catch IOException ioe                              defaultUEH uncaughtException t  e      private void startActivity Intent chooser                     in same java class file  Activity            Public class MainActivity                 Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       Thread setDefaultUncaughtExceptionHandler new TopExceptionHandler this

User · Answer

Here is another solution for Crash Log   Android market has tool named  Crash Collector   check following link for more information  http   kpbird blogspot com 2011 08 android-application-crash-logs html

User · Answer

You can try this from the console   adb logcat --buffer crash    More info on this option   adb logcat --help         -b  lt buffer gt   --buffer  lt buffer gt          Request alternate ring buffer   main                      system    radio    events    crash    default  or  all                     Multiple -b parameters or comma separated list of buffers are                   allowed  Buffers interleaved  Default -b main system crash

User · Answer

You can also use library crashcatcher

[android] How to get Android crash logs?

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