Yes/NO Alert Dialog box in Android
<p>I want to Show an Alert Dialog Box in android on onBackPressed() event</p>

<pre><code>DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {

    //@Override
    public void onClick(DialogInterface dialog, int which) {
        switch (which){
        case DialogInterface.BUTTON_POSITIVE:
            //Yes button clicked
            break;

        case DialogInterface.BUTTON_NEGATIVE:
            //No button clicked
            break;
        }
    }
};
</code></pre>

<p><strong>But I am getting error when executing it in onBackPressed() event</strong></p>

<pre><code>@Override
public void onBackPressed() {
    super.onBackPressed();  
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Are you sure?").setPositiveButton("Yes", dialogClickListener)
        .setNegativeButton("No", dialogClickListener).show();

}
</code></pre>

<p>Error :
"<em>com.java.mypkg has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@406c3798 that was originally added here</em>"</p>

<p>Do I have missed something. Pls help.</p>
