Dice Emulation - ImageView
- by Michelle Harris
I am trying to emulate dice using ImageView. When I click the button, nothing seems to happen. I have hard coded this example to replace the image with imageView4 for debugging purposes (I was making sure the random wasn't fail). Can anyone point out what I am doing wrong? I am new to Java, Eclipse and Android so I'm sure I've probably made more than one mistake.
Java:
import java.util.Random;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.Toast;
public class Yahtzee4Activity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Spinner s = (Spinner) findViewById(R.id.spinner);
ArrayAdapter adapter = ArrayAdapter.createFromResource(
this, R.array.score_types, android.R.layout.simple_spinner_dropdown_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
s.setAdapter(adapter);
}
public void onMyButtonClick(View view)
{
ImageView imageView1 = new ImageView(this);
Random rand = new Random();
int rndInt = 4; //rand.nextInt(6) + 1; // n = the number of images, that start at index 1
String imgName = "die" + rndInt;
int id = getResources().getIdentifier(imgName, "drawable", getPackageName());
imageView1.setImageResource(id);
}
}
XML for the button:
<Button
android:id="@+id/button_roll"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/roll"
android:onClick="onMyButtonClick"
/>
