SeraphimSerapis schrieb:
package android.and01.lektion3;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.view.View;
import android.widget.LinearLayout;
// Listener-klasse bekanntmachen:
import android.view.View.OnClickListener;
public class ClearInputActivity extends Activity
{
//textView in dieser Klasse bekanntmachen:
public EditText textView;
/** Called when the activity is created (!not only on the first run of the Activity!) */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
LinearLayout viewGroup = new LinearLayout(this);
viewGroup.setOrientation(LinearLayout.VERTICAL);
//textView-Objekt erzeugen:
textView = new EditText(this);
Button buttonClear = new Button(this);
//Zusammenbau:
buttonClear.setText("Clear");
viewGroup.addView(textView);
viewGroup.addView(buttonClear);
//Listener-Objekt anmelden:
buttonClear.setOnClickListener( new Button.OnClickListener {
@Override
public void onClick(View view) {
//EditText-Objekt zuruecksetzen:
textView.setText("");
});
this.setContentView(viewGroup);
}
}