How to debug the following android problem

The application that i'm working on has a problem, namely: When I start it everything is okay, but when I leave the program in landscape mode en then start it 开发者_如何学JAVAup again in portrait mode it gives a FC.

Is there a way to get debug information in this situation?

Thanks for your help.

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Google has a good instructional guide. Breakpoints/debugging and logcat (I prefer to monitor it by using adb locat in a command prompt window) are the best way to go.