the application has stopped unexpectedly
I have built a game. When the user clicks a button on the main page, he is redirected to another activity for a predefined time(say 20 s) and then he returns to the main page where he can choose another button. Now, this works perfectly on the emulator but on the phone when I clicks another button on the main page, it says the application has stopped unexpectedly. Force close. However, if I wait for say 3 s before clicking another button, it works. Is it because the images on the background of the buttons are too heavy?? Kindly help. Thanks in advance. 
the application has stopped unexpectedly
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I have built a game. When the user clicks a button on the main page, he is redirected to another activity for a predefined time(say 20 s) and then he returns to the main page where he can choose another button. Now, this works perfectly on the emulator but on the phone when I clicks another button on the main page, it says the application has stopped unexpectedly. Force close. However, if I wait for say 3 s before clicking another button, it works. Is it because the images on the background of the buttons are too heavy?? Kindly help. Thanks in advance. 