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Android

Posted by Zainul Dedanwala
Zainul Dedanwala
686 Points

Error:(33) No resource identifier found for attribute 'nestedScrollingEnabled' in package 'android'

Error:(33) No resource identifier found for attribute 'nestedScrollingEnabled' in package 'android' THIS ERROR OCCURED SUDDENLY WORKING YESTERDAY ON CODING FOR AN ANDROID APP.THE PROGRAM AINT COMPILING BECAUSE I GOT THIS ERROR. WHAT TO DO TO GET RID OFF THIS ERROR.

adamghani
adamghani
7,955 Points

Hi Zainul, Please add in your code or link to a github repository, and include anything that might help us help you.

https://teamtreehouse.com/community/howto-guide-asking-forum-questions

Zainul Dedanwala
Zainul Dedanwala
686 Points

public class FunFacts extends Activity { private FactBook mFactBook = new FactBook(); private ColorWheel mColorWheel = new ColorWheel(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fun_facts); final TextView factLabel = (TextView) findViewById(R.id.FactTextBox); Button showFactButton = (Button) findViewById(R.id.clickFactButton); final RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout); View.OnClickListener Listener = new View.OnClickListener() { @Override public void onClick(View view) { String Fact = mFactBook.getFact(); factLabel.setText(Fact); int color = mColorWheel.getColor(); relativeLayout.setBackgroundColor(color); } }; showFactButton.setOnClickListener(Listener);

    Toast WelcomeToast = Toast.makeText(this,"Application Initialized",Toast.LENGTH_LONG);
    WelcomeToast.show();
}

}

adamghani
adamghani
7,955 Points

This is the same version you posted, but well formatted.

public class FunFacts extends Activity {
    private FactBook mFactBook = new FactBook();
    private ColorWheel mColorWheel = new ColorWheel();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fun_facts);
        final TextView factLabel = (TextView) findViewById(R.id.FactTextBox);
        Button showFactButton = (Button) findViewById(R.id.clickFactButton);
        final RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout);
        View.OnClickListener Listener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String Fact = mFactBook.getFact();
                factLabel.setText(Fact);
                int color = mColorWheel.getColor();
                relativeLayout.setBackgroundColor(color);
            }
        };
        showFactButton.setOnClickListener(Listener);

        Toast WelcomeToast = Toast.makeText(this, "Application Initialized", Toast.LENGTH_LONG);
        WelcomeToast.show();
    }
}
Zainul Dedanwala
Zainul Dedanwala
686 Points

Yes. But the code line setContentView(R.layout.activity_fun_facts); The letter R appears red on the IDE and when I hover over it, it shows "Cannot Resolve Symbol 'R' ". And the Gradle message shows this error while running the code Error:(33) No resource identifier found for attribute 'nestedScrollingEnabled' in package 'android'