/**
* Calculates average tempo of touches, sets it and starts metronome. Calculates tempo from 57 to
* 200 bpm. Re-calculate after 1100 ms pause*
*/
private void tapTempo() {
int hp = metronome.headPosition();
bpmf = bpm;
playStatePrevious = metronome.getPlayState();
// If tapped while playing, just after the previous click, it doesn't click again, just delays
// next click.
if (playStatePrevious == 3) {
if (hp < 8820) {
metronome.setDelay(hp / 44100 * 1000);
}
} else {
flasher();
metronome.play();
startDelayHandler.postDelayed(startDelay, 20000 / bpm); //
}
if (tapCount == 0) { // On the first tap it only records time
timeFirstTap = System.currentTimeMillis();
timeLastTap = timeFirstTap;
tapCount++;
} else if ((System.currentTimeMillis() - timeLastTap)
< 1050) { // Maximum time between taps is set to 1050 ms (57 bpm)
if (hp
> 8820) { // If tapped while playing, after less than 8820 samples from the previous
// click, it doesn't stop, just delays next click.
metronome.stop();
}
timeLastTap = System.currentTimeMillis();
exactBpmMs = (double) (timeLastTap - timeFirstTap) / tapCount;
exactBpm = 60000 / exactBpmMs;
tapBpm = (int) Math.round(exactBpm);
Log.i("exactBpm", "" + exactBpm);
Log.i("tapBpm", "" + tapBpm);
if (tapBpm > 200) tapBpm = 200;
metronome.setTempo(tapBpm);
bpm = tapBpm;
bpmTextView.setText(String.valueOf(tapBpm));
tapCount++;
if (hp > 7340) {
metronome.play();
startDelayHandler.postDelayed(startDelay, (20000 / bpm));
}
} else {
tapCount = 1;
timeFirstTap = System.currentTimeMillis();
timeLastTap = timeFirstTap;
}
}
@Override
public void onLongPress(MotionEvent e) {
metronome.stop();
}
@Override
protected void onDestroy() {
super.onDestroy();
metronome.stop(); // Prevents creating new AudioTrack over existing one
}
