On Feb 9, 6:00 am, GiladH <[email protected]> wrote:
> Is there a way of querying Android (or G1 or DDMS) for a list of all
> currently live objects
> by type and by nymber of instances.
>
> That is:
>    - your app currently have 122 objects of type MyClass
>    - your app currently have 201 objects of type MyOtherClass

You can generate an "hprof" dump by using "runhat"; some information
is available in this thread:

  
http://groups.google.com/group/android-developers/browse_thread/thread/e2653bff9e0eee3e/620b68305da4586e

The android-specific dump must be converted with "hprof-conv"; sources
are currently available here:

  http://bigflake.com/HprofConv.c.txt

The conversion tool, and a new API for generating dumps, will be
included in a future release.

Once you have the hprof output, you can process it with a number of
tools, including "jhat" (part of the JDK) and "MAT".

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