Android ProgressDialog delayed before showing up
<p>I'm using the ProgressDialog in android to prevent the user from, say, pressing a button multiple times while a long task is updating the UI. </p>

<p>My problem is that the ProgressDialog does not seem to show up after awhile, as it seems to be another thread. </p>

<p>In my experiment I called this ProgressDialog show() in an EditText's text changed listener. It still allows me to type in multiple characters in a short period before showing up.</p>

<p>Is there a way I can detect that the ProgressDialog has already started?</p>

<p>Edit 1:
This was done on a real device. The code is simply this:</p>

<pre><code>    editText.addTextChangedListener( new TextWatcher() {
            ...
            public void onTextChanged(CharSequence s, int start, int before, int count) {

                    ProgressDialog lock = new ProgressDialog(UIClass.this);
                    lock.show();

        }
            ...
    });
</code></pre>

<p>My first assumption was that this would show the dialog immediately after the first character I type, but when I tested by typing multiple characters in a short period it was still possible, and the locking only starts after the 2nd or 3rd character. I am assuming that this is because the ProgressDialog is another thread. I wish to know how to make it properly lock the UI at the exact point I am interested in.</p>
