So I have the body of my oncreate method something like this:
<code>
pd = ProgressDialog.show(this,
"Calculating...",
"Please be
patient. ",
true, false);
Thread thread = new Thread(this);
thread.start();
</code>
My activity also extends Runnable so here is the run method along with
the handler:
<code>
public void run() {
Thread.sleep(25000L);
// in real world some calculation call would go here
handler.sendEmptyMessage(0);
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
MyActivity.this.populateMainView();
pd.dismiss();
}
};
</code>
All of the above works great unless someone changes the screen
orientation while the calculation is running. If the orientation
changes the OnCreate method runs again. Additionally, if someone
changes the orientation _AFTER_ the run method has completed (and the
view has been populated), The onCreate Runs again and the values are
recreated even though the data has not changed. I want my method views
to reorient without affecting the state of my thread. What is the
right way to do this? I know there is a very basic concept of
activity lifecycle that I am missing, but I cannot find anything about
this anywhere.
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