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    <blockquote> <p>I was wondering if I can override the action of the back and home button is some cases.</p> </blockquote> <p>Yes you can do override <code>Home</code> button.</p> <p>I have developed an application which disable hard button, you can have a look. I have taken a <strong>toggle button</strong> which locks all hard button to work except <strong>Power</strong> button</p> <pre><code>public class DisableHardButton extends Activity { /** Called when the activity is first created. */ TextView mTextView; ToggleButton mToggleButton; boolean isLock=false; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mTextView=(TextView) findViewById(R.id.tvInfo); mToggleButton=(ToggleButton) findViewById(R.id.btnLock); mToggleButton.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub isLock=isChecked; onAttachedToWindow(); } }); } @Override public boolean dispatchKeyEvent(KeyEvent event) { if ( (event.getKeyCode() == KeyEvent.KEYCODE_HOME) &amp;&amp; isLock) { mTextView.setText("KEYCODE_HOME"); return true; } else return super.dispatchKeyEvent(event); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // TODO Auto-generated method stub if( (keyCode==KeyEvent.KEYCODE_BACK) &amp;&amp; isLock) { mTextView.setText("KEYCODE_BACK"); return true; } else return super.onKeyDown(keyCode, event); } @Override public void onAttachedToWindow() { System.out.println("Onactivity attached :"+isLock); if(isLock) { this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD); super.onAttachedToWindow(); } else { this.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION); super.onAttachedToWindow(); } } } </code></pre> <p>main.xml</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;TextView android:id="@+id/tvInfo" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /&gt; &lt;ToggleButton android:id="@+id/btnLock" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textOff="UnLocked" android:textOn="Locked" /&gt; &lt;/LinearLayout&gt; </code></pre>
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    1. USAzhar Shaikh
    1. USAzhar Shaikh
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    1. COWow, this is great, exactly what I´m looking for!
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    2. CODidn't knew this, thought you couldn't change it, +1 :)
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    3. COGreat! its working perfectoo.
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      1. USDharmendra
 

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