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Android Build a Simple Android App (2014) Basic Android Programming Accessing Views in Code

Claudio Chandia
Claudio Chandia
357 Points

Cannot resolve "factTextView".

Hello, I'm trying to code the FunFactApp, and It says it "cannot resolve symbol "factTextView", in the line:

TextView factLabel = (TextView) findViewById(R.id.factTextView)

Can someone help me? I've immported the TextView before, so I guess that's not the problem.

Thank you¡

2 Answers

Yes, you need to change something.

You're trying to link to a TextView called factTextView here:

TextView factLabel = (TextView) findViewById(R.id.factTextView);

But your XML has two TextViews - one is called: android:id="@+id/textView" and the other is android:id="@+id/FunFactText".

You need to decide which one you want to access with the line of code above and either change the id in that line or change the id of the TextView.

I hope that helps!

Steve.

Claudio Chandia
Claudio Chandia
357 Points

That definetly helped me, thank you¡

Have you definitely called the TextView factTextView? It looks like Android Studio thinks you haven't done that.

Post the xml file for the activity you are working in.

Steve.

Claudio Chandia
Claudio Chandia
357 Points

This is my "activity_fun_facts.xml" file. Do you think I have to change something?

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".FunFactsActivity" android:background="#ff51b46d">

<TextView
    android:text="Did you know?"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="24sp"
    android:id="@+id/textView"
    android:layout_alignParentTop="true"
    android:layout_alignLeft="@+id/FunFactText"
    android:layout_alignStart="@+id/FunFactText"
    android:textColor="#80ffffff" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Ants like food..."
    android:id="@+id/FunFactText"
    android:layout_centerVertical="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:textSize="24sp"
    android:textColor="@android:color/white" />

<Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Show another Fun Fact"
    android:id="@+id/ShowFactButton"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    android:background="@android:color/white" />

</RelativeLayout>