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Android Build a Simple Android App Basic Android Programming Initializing a Button

Not sure what it wants me to do here.

The assignment is: "Initialize the showFactButton variable using the findViewById() method like the TextView above it. The ID for the button is showFactButton, and don't forget to cast it to a Button with (Button)!" I am probably just really bad at this whole coding thing, but I don't know what it is asking for when it says to "Initialize the variable." Any help would be appreciated; my code is below.

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class FunFactsActivity extends Activity {

    public void onCreate(Bundle savedInstanceState) {

        // Declare our View variables and assign them the Views from the layout file
        TextView factLabel = (TextView) findViewById(R.id.factTextView);
        Button showFactButton;

1 Answer

Grigorij Schleifer
Grigorij Schleifer
10,365 Points

Hi Uriah,

just do it like the line above. Declare a Button and don´t forget to cast it :)

Button showFactButton = (Button) findViewById(R.id. showFactButton);

showFactButton is the Id. The Button inside the parenthesis tells the compiler that we are assigning a Button to "showFactButton".

Makes sense?


Yes, this makes sense, Grigorij. Thank you.

Grigorij Schleifer
Grigorij Schleifer
10,365 Points

You are very welcome !

Glad I could help.

See you in the forum