@Override
public void resume() {
if (handler != null && handler.isPrepared()) handler.resume();
else if (handler == null) {
restart();
}
}
@Override
public void prepare(BaseDanmakuParser parser) {
prepare();
handler.setParser(parser);
handler.setCallback(mCallback);
handler.prepare();
}
@Override
public void resume() {
if (handler != null && mDrawThread != null && handler.isPrepared()) handler.resume();
else {
restart();
}
}
@Override
public void start(long postion) {
if (handler == null) {
prepare();
} else {
handler.removeCallbacksAndMessages(null);
}
handler.obtainMessage(DrawHandler.START, postion).sendToTarget();
}
@Override
protected void onDraw(Canvas canvas) {
if ((!mDanmakuVisible) && (!mRequestRender)) {
super.onDraw(canvas);
return;
}
if (mClearFlag) {
DrawHelper.clearCanvas(canvas);
mClearFlag = false;
} else {
if (handler != null) {
RenderingState rs = handler.draw(canvas);
if (mShowFps) {
if (mDrawTimes == null) mDrawTimes = new LinkedList<Long>();
String fps =
String.format(
Locale.getDefault(),
"fps %.2f,time:%d s,cache:%d,miss:%d",
fps(),
getCurrentTime() / 1000,
rs.cacheHitCount,
rs.cacheMissCount);
DrawHelper.drawFPS(canvas, fps);
}
}
}
mRequestRender = false; // 复位
unlockCanvasAndPost();
}
@Override
public boolean isShown() {
if (handler == null || !isViewReady()) {
return false;
}
return handler.getVisibility();
}
@Override
public long getCurrentTime() {
if (handler != null) {
return handler.geCurrenttTime();
}
return 0;
}
@Override
public boolean isPaused() {
if (handler != null) {
return handler.isStop();
}
return false;
}
public void toggle() {
if (isSurfaceCreated) {
if (handler == null) start();
else if (handler.isStop()) {
resume();
} else pause();
}
}
@Override
public void showAndResumeDrawTask(Long position) {
mDanmakuVisibile = true;
if (handler == null) {
return;
}
handler.showDanmakus(position);
}
@Override
public void hide() {
mDanmakuVisibile = false;
if (handler == null) {
return;
}
handler.hideDanmakus(false);
}
@Override
public long hideAndPauseDrawTask() {
mDanmakuVisibile = false;
if (handler == null) {
return 0;
}
return handler.hideDanmakus(true);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (handler != null) {
handler.notifyDispSizeChanged(right - left, bottom - top);
}
isSurfaceCreated = true;
}
private void stopDraw() {
if (handler != null) {
handler.quit();
handler = null;
}
if (mDrawThread != null) {
try {
mDrawThread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
mDrawThread.quit();
mDrawThread = null;
}
}
@Override
public synchronized long drawDanmakus() {
if (!isSurfaceCreated) return 0;
long stime = System.currentTimeMillis();
if (!isShown()) return -1;
long dtime = 0;
Canvas canvas = lockCanvas();
if (canvas != null) {
if (handler != null) {
handler.draw(canvas);
if (mShowFps) {
if (mDrawTimes == null) mDrawTimes = new LinkedList<Long>();
dtime = System.currentTimeMillis() - stime; // not so accurate
String fps = String.format(Locale.getDefault(), "%02d MS, fps %.2f", dtime, fps());
DrawHelper.drawFPS(canvas, fps);
}
}
if (isSurfaceCreated) unlockCanvasAndPost(canvas);
}
dtime = System.currentTimeMillis() - stime;
return dtime;
}
private void lockCanvas() {
if (mDanmakuVisible == false) {
return;
}
postInvalidateCompat(); // 设置 mRequestRender = true;
// --->invalidate触发onDraw(画完后mRequestRender = false; //复位
// 并unlockCanvasAndPost();)
// --->unlockCanvasAndPost中
// mDrawFinished = true; 标志画完
/* synchronized(obj) {
while(!condition) {
obj.wait();
}
obj.doSomething();
}
当线程A获得了obj锁后，发现条件condition不满足，无法继续下一处理，于是线程A就wait() , 放弃对象锁.
之后在另一线程B中，如果B更改了某些条件，使得线程A的condition条件满足了，就可以唤醒线程A：
synchronized(obj) {
condition = true;
obj.notify();
}*/
synchronized (mDrawMonitor) {
while ((!mDrawFinished) && (handler != null)) {
try {
mDrawMonitor.wait(200);
} catch (InterruptedException e) {
if (mDanmakuVisible == false || handler == null || handler.isStop()) {
break;
} else {
Thread.currentThread().interrupt();
}
}
}
mDrawFinished = false; // 复位
}
}
public void addDanmaku(BaseDanmaku item) {
if (handler != null) {
handler.addDanmaku(item);
}
}
@Override
public void removeAllLiveDanmakus() {
if (handler != null) {
handler.removeAllLiveDanmakus();
}
}
@Override
public void clearDanmakusOnScreen() {
if (handler != null) {
handler.clearDanmakusOnScreen();
}
}
public void setCallback(Callback callback) {
mCallback = callback;
if (handler != null) {
handler.setCallback(callback);
}
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
if (handler != null) {
handler.notifyDispSizeChanged(width, height);
}
}
@Override
public boolean isPrepared() {
return handler != null && handler.isPrepared();
}
public void seekTo(Long ms) {
if (handler != null) {
handler.seekTo(ms);
}
}
@Override
public void pause() {
if (handler != null) handler.pause();
}