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@bkase
Created January 18, 2012 22:38
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CircleTimeActivity from mobile apps club
package org.cmu.mobileappsclub.circletime;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class CircleTimeActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button areaButton = (Button) this.findViewById(R.id.areaButton);
areaButton.setOnClickListener(new AreaListener());
Button clearButton = (Button) this.findViewById(R.id.clearButton);
clearButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
EditText input = (EditText) CircleTimeActivity.this.findViewById(R.id.textbox);
input.setText("");
Log.d("clear", "We pressed the clear button");
}
});
}
private class AreaListener implements OnClickListener {
public void onClick(View arg0) {
// TODO Auto-generated method stub
EditText input = (EditText) CircleTimeActivity.this.findViewById(R.id.textbox);
double radius = Double.parseDouble(input.getEditableText().toString());
double area = radius*radius*Math.PI;
Toast.makeText(CircleTimeActivity.this, "The area of the circle is " + area, Toast.LENGTH_LONG).show();
}
}
}
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