Sequence of command?
<p>I wrote this code</p>

<pre><code>    WindowManager.LayoutParams params = getWindow().getAttributes();
    params.flags |= LayoutParams.FLAG_KEEP_SCREEN_ON;
    params.screenBrightness = 0.1F;
    getWindow().setAttributes(params);

    SystemClock.sleep(5000);

    TextView Text01 = (TextView) findViewById(R.id.Text1);
    Text01.setText("Hello");
</code></pre>

<p>to set the screen brightness and then, after 5 seconds, it displays text. The problem is that it waits 5 secs then Android dims the screen and output the text at the same time. Why it does not work sequentially?
Thanks</p>
