private void prepare(final Runnable runnable) {
if (drawTask == null) {
drawTask =
createTask(
mDanmakuView.isDanmakuDrawingCacheEnabled(),
timer,
mDanmakuView.getContext(),
mDanmakuView.getWidth(),
mDanmakuView.getHeight(),
new IDrawTask.TaskListener() {
@Override
public void ready() {
runnable.run();
}
});
} else {
runnable.run();
}
}
@Override
public void handleMessage(Message msg) {
int what = msg.what;
switch (what) {
case PREPARE:
if (mParser == null || !mDanmakuView.isViewReady()) {
sendEmptyMessageDelayed(PREPARE, 100);
} else {
prepare(
new Runnable() {
@Override
public void run() {
mReady = true;
if (mCallback != null) {
mCallback.prepared();
}
}
});
}
break;
case START:
Long startTime = (Long) msg.obj;
if (startTime != null) {
pausedPostion = startTime.longValue();
} else {
pausedPostion = 0;
}
case RESUME:
quitFlag = false;
if (mReady) {
mTimeBase = System.currentTimeMillis() - pausedPostion;
timer.update(pausedPostion);
removeMessages(RESUME);
sendEmptyMessage(UPDATE);
drawTask.start();
} else {
sendEmptyMessageDelayed(RESUME, 100);
}
break;
case SEEK_POS:
Long deltaMs = (Long) msg.obj;
mTimeBase -= deltaMs;
timer.update(System.currentTimeMillis() - mTimeBase);
if (drawTask != null) drawTask.seek(timer.currMillisecond);
pausedPostion = timer.currMillisecond;
removeMessages(RESUME);
sendEmptyMessage(RESUME);
break;
case UPDATE:
if (quitFlag) {
break;
}
long startMS = System.currentTimeMillis();
long d = timer.update(startMS - mTimeBase);
if (mCallback != null) {
mCallback.updateTimer(timer);
}
if (d < 0) {
removeMessages(UPDATE);
sendEmptyMessageDelayed(UPDATE, 60 - d);
break;
}
d = mDanmakuView.drawDanmakus();
removeMessages(UPDATE);
if (d == -1) {
// reduce refresh rate
sendEmptyMessageDelayed(UPDATE, 100);
break;
}
if (d <= 16) {
sendEmptyMessage(UPDATE);
SystemClock.sleep(16 - d);
break;
}
sendEmptyMessage(UPDATE);
break;
case SHOW_DANMAKUS:
Long start = (Long) msg.obj;
if (start == null && drawTask != null) {
drawTask.requestClear();
} else if (start != null && drawTask != null) {
drawTask.start();
drawTask.seek(start);
drawTask.requestClear();
obtainMessage(START, start).sendToTarget();
}
mDanmakusVisible = true;
break;
case HIDE_DANMAKUS:
if (mDanmakuView != null) {
mDanmakuView.clear();
}
Boolean quitDrawTask = (Boolean) msg.obj;
if (quitDrawTask.booleanValue() && this.drawTask != null) {
this.drawTask.quit();
}
mDanmakusVisible = false;
if (!quitDrawTask) {
break;
}
case PAUSE:
case QUIT:
removeCallbacksAndMessages(null);
quitFlag = true;
mDrawTimes.clear();
pausedPostion = timer.currMillisecond;
if (what == QUIT) {
if (this.drawTask != null) {
this.drawTask.quit();
}
if (this.getLooper() != Looper.getMainLooper()) this.getLooper().quit();
if (mParser != null) {
mParser.release();
}
}
break;
}
}
