Langes drücken des Back-Button in meiner App deaktivieren

1package com.tabletizer.killbuttons;
2
3import android.app.Activity;
4import android.os.Bundle;
5import android.view.KeyEvent;
6import android.widget.TextView;
7import android.widget.Toast;
8
9public class KillButtonsActivity extends Activity {
10 /** Called when the activity is first created. */
11 @Override
12 public void onCreate(Bundle savedInstanceState) {
13 super.onCreate(savedInstanceState);
14 setContentView(R.layout.main);
15
16 }
17
18
19 @Override
20 public boolean onKeyUp(int keyCode, KeyEvent event) {
21 if (keyCode == KeyEvent.KEYCODE_BACK && event.isTracking()
22 && !event.isCanceled()) {
23 //Toast.makeText(KillButtonsActivity.this, "Released", Toast.LENGTH_SHORT).show();
24 TextView greetingField = (TextView) findViewById(R.id.textfield);
25 greetingField.setText("Released");
26 return true;
27 }
28 return super.onKeyUp(keyCode, event);
29 }
30
31 @Override
32 public boolean onKeyDown(int keyCode, KeyEvent event) {
33 if (keyCode == KeyEvent.KEYCODE_BACK) {
34 //Toast.makeText(KillButtonsActivity.this, "Pressed", Toast.LENGTH_SHORT).show();
35 TextView greetingField = (TextView) findViewById(R.id.textfield);
36 greetingField.setText("Pressed");
37 event.startTracking();
38 return true;
39 }
40 return super.onKeyDown(keyCode, event);
41 }
42
43 @Override
44 public boolean onKeyLongPress(int keyCode, KeyEvent event) {
45 if (keyCode == KeyEvent.KEYCODE_BACK) {
46 //Toast.makeText(KillButtonsActivity.this, "LongPressed", Toast.LENGTH_SHORT).show();
47 TextView greetingField = (TextView) findViewById(R.id.textfield);
48 greetingField.setText("LongPressed");
49
50 return true;
51 }
52 return super.onKeyLongPress(keyCode, event);
53 }
54
55
56}