debugging - Android with jdb confusion using waitForDebugger

Question

I'd like to debug my Android application on my device (Nexus One - not the emulator) using the command line.

I'm confused at how to set a breakpoint using jdb in combination with android.os.Debug.waitForDebugger.

Say I put the following code in my main activity onCreate:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    android.os.Debug.waitForDebugger();
    int j = 10;
    int r = j;
}

Using ddms I can see that my application is waiting for the debugger (red bug icon) when I start it.

However, I don't understand how to set a breakpoint after the waitForDebugger() call so that I can start stepping.

Obviously just attaching jdb is going to immediately continue running the app without stopping.

e.g.

jdb -attach localhost:8700

Is there way to preset breakpoints prior to running jdb or a way to start jdb set breakpoints and then attach?

Answer 1

jdb has a config file : ~/.jdrbc in Linux. e.g in mine I have:

stop in net.richardriley.myproj.myact.onCreate

The in your device emulator dev settings you can set "wait for debugger" for the application class in question. Run the application, start the debugger and it will break.