Is there a way to take a memory dump on app crash?

I am busy writing an app and I have 开发者_如何学Gonoticed that it sometimes crashes, and when it does and I get back to my computer then I only have the stack trace.

Is there a way for me to take a memory dump of the app at crash time?

Thanks

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If you call android.os.Debug.dumpHprofData(String fileName), you can capture an HPROF dump that can be viewed with jhat or MAT. You'll need to trap the exception somehow (either try/catch or specify your own global default exception handler), and if you want to write to /sdcard you'll need the WRITE_EXTERNAL_STORAGE permission.

See also Dalvik Heap Profiling.

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Not a memory dump but ACRA, http://code.google.com/p/acra/, (Application Crash Report for Android) is pretty good at recording info about what's going on. With the most detailed info being a stack trace.

The debugging info on it's own might not be super helpful, but you could modify their code to do and send a logcat when your application crashes so you would get some more details about what's going on. I think they don't do this by default for privacy/security reasons but it's a bit more useful to see the logcat around the crash.

Other than that you'd need to debug it with the debugger.

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Is there a way for me to take a memory dump of the app at crash time?

Not that I am aware of -- sorry!