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Android Build an Interactive Story App (Retired) Finishing the User Interface Formatting Strings

Posted by Dawit Habtemariam
Dawit Habtemariam
2,708 Points

Why do all the areas in my code have red dotted lines under R?

I changed the ids for my choice buttons and then ran my code. It reported errors in the findByViewId method because it didn't recognize R. When I click alt+enter on top of it it just asks me to created classes, enum, fields and etc.

3 Answers

Jared M
Jared M
3,680 Points
Jared M
Jared M
3,680 Points

Please show an example.

Dawit Habtemariam
Dawit Habtemariam
2,708 Points
Dawit Habtemariam
Dawit Habtemariam
2,708 Points

protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);

    mNameField=(EditText)findViewById(R.id.nameEditText);
    mStartButton=(Button)findViewById(R.id.startButton);

The Rs are red and AndroidStudio says it can't resolve the symbol.

Jared M
Jared M
3,680 Points
Jared M
Jared M
3,680 Points

Try these:

  1. Clean your project (Build - Clean Project)
  2. "Tools" -> "Android" -> "Sync Project with Gradle Files"
  3. Or just restart Android Studio?

Hope one works for ya!

Dawit Habtemariam
Dawit Habtemariam
2,708 Points

My problem was that I made mistake in labeling my id for the relative layout. I fixed it. Thanks!