android - Conditional pop window -

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so i'm still new java , android programming. scenario here have created app scores users progress based on how many of goals have achieved @ end of week. @ end of scoring process accumulate points. based on accumulated score on several weeks can acquire trophies. once finish scoring taken result activity changes background image based on score achieved particular week. on same result activity use popup window inform them based on accumulated points when have 1 trophy. of sample code have seen use button open pop up. open result activity starts , based on whether met points each of trophies. tried myself open activity crashed. please help?!


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