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Start your free trialMichał Juszczuk
885 PointsWhy, in my program the proper form of initialising factTextView is R.id.facttextView instead of R.id.factTextView?
I made everything as it was in toutorial, but Android Studio gave me a tip to write : factTextView = findViewById(R.id.facttextView); - It's working.
factTextView = findViewById(R.id.factTextView); - It's how it's made in toutorial, and it's not working in my case.
Why i had to write it differently, even though variable name is "factTextView" (capital T)?
This is the code: //declare our view variables private TextView factTextView; private Button showFactButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fun_facts);
// Assign Views from the layout file to the corresponding variables
factTextView = findViewById(R.id.facttextView);
showFactButton =findViewById(R.id.showFactbutton);
3 Answers
Maciej Czuchnowski
36,441 PointsYou most likely used the name facttextView
(lower case t) in your layout. Check your res/layout/activity_main.xml
or similar file in that folder.
Michał Juszczuk
885 PointsOk, dzięki za odpowiedź.
zoxol zoxol
Courses Plus Student 75 Points@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fun_facts);
// Assign the Views form the layout file to the corresponding variables
factTextView = findViewById(R.id.factTextView);
showFactButton = findViewById(R.id.showFactButton);