I have an AsyncTask, where I hide a video view, start the video playback,
and show the video view when the video is playing.
But the video would just not start when the video view is set to invisible,
the async task keeps hanging in onBackground. If I comment out this line
(or set it to View.VISIBLE), the video starts playing. Why does the video
view require a *visible* surface?
public void walk(final View v) {
new AsyncTask() {
@Override
protected void onPreExecute() {
super.onPreExecute();
mVideoView.setVisibility(View.INVISIBLE); // this line causes video
not to start
mVideoView.start();
}
@Override
protected Object doInBackground(Object... objects) {
while (!mVideoView.isPlaying()) {}
return null;
}
@Override
protected void onPostExecute(Object o) {
super.onPostExecute(o);
mVideoView.setVisibility(View.VISIBLE);
}
}.execute();
A bit of background why I'm doing this:
I try to avoid the well-known issue of the black flash that you usually
have when starting a video (or in my case, play one video right after
another one, without any gap / black flash):
http://stackoverflow.com/search?q=%5Bandroid%5D+videoview+black
http://stackoverflow.com/search?q=%5Bandroid%5D+video+%5Bmediaplayer%5D+black
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