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Android Build a Simple Android App Basic Android Programming Accessing Views in Code: Assigning Variables

Markus Henze
Markus Henze
1,798 Points
Posted by Markus Henze
Markus Henze
1,798 Points

factTextView stays red

nFactTextView = (TextView)findViewById(R.id.factTextView); When I put the cursor over iy I get the error "Cannot resolve symbol factTextView"

4 Answers

christopher vaughan
christopher vaughan
1,411 Points

Make sure you gave your view that exact id in the layout xml file. if that checks out, try going to Build->Clean Project and see if that clears it up.

also I notice you wrote nFactTextView. the convention is to use a lowercase m in front, and that's how it is in the video, so just make sure those match. (sidenote: the lower case m is short for "member variable" which tells us that the variable is a member of the main class, rather than whatever function it's being used in).

April Carter
April Carter
15,568 Points
April Carter
April Carter
15,568 Points

I just figured out why I was having this same problem and how to fix it. Go back to "Creating the Screen Layout" and re-watch the "adding a button" video. towards the end, make sure you follow the steps for "refactoring." I didn't the first time that I watched the videos because it was late and I thought that I would do it the next time I picked up the course. Hopefully that fixes the problem for you too.

sukjae lee
sukjae lee
5,705 Points
sukjae lee
sukjae lee
5,705 Points

check res > layout > activity_fun_facts.xml. (in android view) should have [android:id="@+id/factTextView"] inside of [TextView]

think this as selector in html&css

Markus Henze
Markus Henze
1,798 Points
Markus Henze
Markus Henze
1,798 Points

I already figured it out, thanks for the n I used refactor to change it to a m its good I did that sooner than latter.