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Android Build a Simple Android App (2014) Basic Android Programming Initializing a Button

Posted by MUZ140596 Simba Maoneyi
MUZ140596 Simba Maoneyi
792 Points

how to declare a show Fact Button in android

Button showFactButton;

FunFactsActivity.java 
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 {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fun_facts);

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

    }
}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hiya,

You need to type cast the findViewById line so that it converts the returned value to a button type:

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

Everything else is spot on!

Steve.

MUZ140596 Simba Maoneyi
MUZ140596 Simba Maoneyi
792 Points

thanks a lot