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 lo

Answer 1

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.