I am triying to do an app using the notepad tutorial of Android as a guide. I can insert new elements in my expandable list (simple expandable adapter)without problems, but if i want to update the fields of one of this elements an error is prompted. I revisited the tutorial lots of times but i cant find the solution. I am using a context menu ,and when I clicked to me the index which called the new activity, the app force close. So I added 4 groups, and when I clicked to the third group ,the new activity had the extras of the first group.When I clicked to the first one, the app forse closes and get the error above. Then after looking for the solution in web I achieve not to force close, but the new activity doesn't get the any extras. Just dispaly the new activity. Why does this happen? Any help? I supposed tha the problem is in the way I bring the data from database. Also, I tried to fix the cursor, but it doesn;t get the extras. If there is a problem in my database ? It returns a null cursor? Why ? How could I fix this? I am trying this for a long time and I cant find the reason. If you want to see my code, I could upload it. Thanks in advance, and forgive me for my english.
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