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

Abdulraheem Bakare
Abdulraheem Bakare
809 Points

how do i make this work

i followed the instructions but i still don't get it

1 Answer

Ari Misha
Ari Misha
19,323 Points

Hello there! Challenge is merely simple which tells you to create a Button named showFactButton (aka initialize it) and cast it and assign the button view to it, right? Hence your code should look like:

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

OR (thats how it should look like Kotlin)

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

class FunFactsActivity : Activity {

    override fun onCreate(savedInstanceState: Bundle?) {

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

I hope it helped!

~ Ari