Viewing an Android database cursor

Would anyone know how I can view what a cursor has in it during debugging so that I can determine the functionality of my database开发者_C百科 helper?

It keeps acting like it's returning data, but then when I attempt to use the cursor.isNull(0) method, I keep getting NullPointerException thrown and not being able to see what the cursor has in it while stepping through the execution is really frustrating me.

Any help would be extremely appreciated.

Thanks.

Android has provided a specific class just for debugging Cursors. It is called DatabaseUtils.

Call the method DatabaseUtils.dumpCursorToString(cursor) to view the contents of your cursor.

This helper loops through and prints out the content of the Cursor for you, and returns the cursor to its original position so that it doesn't mess up your iterating logic.

If that's null pointer exception, it seems your cursor really is null.

I would use Log.d() to help debug my cursors, you can simply create a helper method to dump the whole row of your cursor to LogCat.