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Android Build an Interactive Story App (Retired) Intents and Multiple Activities Getting Data from an Intent

Posted by Stephen Ford
Stephen Ford
2,836 Points

Hello Treehouse family, "if" statement using null.

Hello Treehouse family,

In this video Ben uses an "if" statement and then places "null" as the response returned if there is no textField entry.

I did not find this method to work. I tested it by placing a toast within the "if" statement and went to work. I found if I set the "if" statement to if(name != null) I would finally get into the body of the if statement.

After looking around I found the method ".matches("") " in this case... if(name.matches("")){} and this worked. I have found this in Java programming in the past as well. A textField not used still has a value therefore null is not applicable.

Just wondering what the guru's had to add... :)

Cheers

1 Answer

miguelcastro2
miguelcastro2
Courses Plus Student 6,573 Points

TextView in Android returns a CharSequence , which can either be empty or not. So like you discovered it does not return null and perhaps did in prior versions of Android.