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Start your free trialJace Galloway
1,464 PointsAccessing Views in Code
I am working on this video in getting started with android and when I get to this part of the code in MainActivity
//Declare our View variables TextView answerLabel = findViewById(R.id.TextView1); Button getAnswerButton;
I can't get it to work... when in the video is says to do (R.id.) and then it will call up the option to add TextView1, it doesn't, so I add it manually and it doesn't work.
TextView1 can not be resolved or is not a field
is the error I get when I hover over the error marker.
3 Answers
Ernest Grzybowski
Treehouse Project ReviewerVery quickly!
You wrote TextView answerLabel = findViewById(R.id.TextView1);
The method findViewById()
returns a view, but you are selecting a TextView
, so you must cast it to a TextView
. Something like this...
TextView answerLabel = (TextView) findViewByID(R.id.TextView1);
Devon Artis
327 PointsIt seems like there may be a problem with your R.java file.
You can do a project clean that should help you.
Last resort is to delete the Rename the R.java file so a new one will be built and then delete the one that you renamed.
william kenny
5,428 PointsI had this problem as well. I deleted the line at the top that says import android.R and that fixed it. Not sure why...
Ernest Grzybowski
Treehouse Project ReviewerYou usually don't need android.R and it will actually cause things to break.
http://stackoverflow.com/questions/15309941/import-android-r-in-eclipse-why