07.04.2011 15:57, Gabriel пишет:
I'm making kind of a calculator and everything is working fine. Except when I leave one of the 4 EditText fields blank, the application cracks ("stops unexpectly"). How can I work this out?
In general, when something like this happens, you use the debugger to find out what's really happening.
Some ideas: When an EditText is empty, its getText returns null. When you call toString() on a null object, you get a NullPointerException.
It would be good to, when this happens (EditText blank) just put a "empty" message at the destination.
Take a look at this: http://developer.android.com/reference/android/widget/TextView.html#setError(java.lang.CharSequence) -- Kostya Vasilyev -- http://kmansoft.wordpress.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en