Hi Thanks for your reply. but NUM_TARGETS is given as  static const int, which can not be modified, means i i passing a value from java file to videoplayback.cpp but becuase of static const int it can not be modified, also i tried to make it simple varible then try to assign in it, still it was not workig.

here is my code to  assign value to NUM_TARGETS from videoplayback.java to videoplayback.cpp file

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Java file:-

public native void sum(int a);

inside oncreate-

sum(100);

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CPP file:-

JNIEXPORT void JNICALL

Hi,

in the VP sample you have this code:

if (strcmp(imageTarget.getName(), "stones") == 0)
            currentTarget=STONES;
        else
            currentTarget=CHIPS;

Then, you can use the same basic idea (to associate target name to current target) but you need to extend it with a bit of extra C++ coding.

You can also pass variables from Java to C++; an an example, take a look at the

setActivityPortraitMode function in VideoPlayback.cpp and VideoPlayback.java as an example of how to pass variable values from Java to C++.