com.google.android.exoplayer2.util.Util.castNonNull()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中com.google.android.exoplayer2.util.Util.castNonNull()方法的一些代码示例，展示了Util.castNonNull()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Util.castNonNull()方法的具体详情如下：
包路径：com.google.android.exoplayer2.util.Util
类名称：Util
方法名：castNonNull

Util.castNonNull介绍

[英]Casts a nullable variable to a non-null variable without runtime null check.

Use Assertions#checkNotNull(Object) to throw if the value is null.
[中]将可空变量强制转换为非空变量，而无需运行时空检查。
如果值为null，则使用断言#checkNotNull（Object）抛出。

代码示例

代码示例来源：origin: google/ExoPlayer

  1. /* package */ CommentFrame(Parcel in) {
  2.  super(ID);
  3.  language = castNonNull(in.readString());
  4.  description = castNonNull(in.readString());
  5.  text = castNonNull(in.readString());
  6. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ InternalFrame(Parcel in) {
  2.  super(ID);
  3.  domain = castNonNull(in.readString());
  4.  description = castNonNull(in.readString());
  5.  text = castNonNull(in.readString());
  6. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ UrlLinkFrame(Parcel in) {
  2.  super(castNonNull(in.readString()));
  3.  description = in.readString();
  4.  url = castNonNull(in.readString());
  5. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ TextInformationFrame(Parcel in) {
  2.  super(castNonNull(in.readString()));
  3.  description = in.readString();
  4.  value = castNonNull(in.readString());
  5. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ GeobFrame(Parcel in) {
  2.  super(ID);
  3.  mimeType = castNonNull(in.readString());
  4.  filename = castNonNull(in.readString());
  5.  description = castNonNull(in.readString());
  6.  data = castNonNull(in.createByteArray());
  7. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ ApicFrame(Parcel in) {
  2.  super(ID);
  3.  mimeType = castNonNull(in.readString());
  4.  description = castNonNull(in.readString());
  5.  pictureType = in.readInt();
  6.  pictureData = castNonNull(in.createByteArray());
  7. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ PrivFrame(Parcel in) {
  2.  super(ID);
  3.  owner = castNonNull(in.readString());
  4.  privateData = castNonNull(in.createByteArray());
  5. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ EventMessage(Parcel in) {
  2.  schemeIdUri = castNonNull(in.readString());
  3.  value = castNonNull(in.readString());
  4.  presentationTimeUs = in.readLong();
  5.  durationMs = in.readLong();
  6.  id = in.readLong();
  7.  messageData = castNonNull(in.createByteArray());
  8. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ BinaryFrame(Parcel in) {
  2.  super(castNonNull(in.readString()));
  3.  data = castNonNull(in.createByteArray());
  4. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Unregister a task.
  3.  *
  4.  * @param priority The priority of the task.
  5.  */
  6. public void remove(int priority) {
  7.  synchronized (lock) {
  8.   queue.remove(priority);
  9.   highestPriority = queue.isEmpty() ? Integer.MIN_VALUE : Util.castNonNull(queue.peek());
  10.   lock.notifyAll();
  11.  }
  12. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ ChapterFrame(Parcel in) {
  2.  super(ID);
  3.  this.chapterId = castNonNull(in.readString());
  4.  this.startTimeMs = in.readInt();
  5.  this.endTimeMs = in.readInt();
  6.  this.startOffset = in.readLong();
  7.  this.endOffset = in.readLong();
  8.  int subFrameCount = in.readInt();
  9.  subFrames = new Id3Frame[subFrameCount];
  10.  for (int i = 0; i < subFrameCount; i++) {
  11.   subFrames[i] = in.readParcelable(Id3Frame.class.getClassLoader());
  12.  }
  13. }

代码示例来源：origin: google/ExoPlayer

  1. private MdtaMetadataEntry(Parcel in) {
  2.  key = Util.castNonNull(in.readString());
  3.  value = new byte[in.readInt()];
  4.  in.readByteArray(value);
  5.  localeIndicator = in.readInt();
  6.  typeIndicator = in.readInt();
  7. }

代码示例来源：origin: google/ExoPlayer

  1. /** Notifies listeners that a transfer ended. */
  2.  protected final void transferEnded() {
  3.   DataSpec dataSpec = castNonNull(this.dataSpec);
  4.   for (int i = 0; i < listenerCount; i++) {
  5.    listeners.get(i).onTransferEnd(/* source= */ this, dataSpec, isNetwork);
  6.   }
  7.   this.dataSpec = null;
  8.  }
  9. }

代码示例来源：origin: google/ExoPlayer

  1. /* package */ ChapterTocFrame(Parcel in) {
  2.  super(ID);
  3.  this.elementId = castNonNull(in.readString());
  4.  this.isRoot = in.readByte() != 0;
  5.  this.isOrdered = in.readByte() != 0;
  6.  this.children = in.createStringArray();
  7.  int subFrameCount = in.readInt();
  8.  subFrames = new Id3Frame[subFrameCount];
  9.  for (int i = 0; i < subFrameCount; i++) {
  10.   subFrames[i] = in.readParcelable(Id3Frame.class.getClassLoader());
  11.  }
  12. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Notifies listeners that bytes were transferred.
  3.  *
  4.  * @param bytesTransferred The number of bytes transferred since the previous call to this method
  5.  *     (or if the first call, since the transfer was started).
  6.  */
  7. protected final void bytesTransferred(int bytesTransferred) {
  8.  DataSpec dataSpec = castNonNull(this.dataSpec);
  9.  for (int i = 0; i < listenerCount; i++) {
  10.   listeners
  11.     .get(i)
  12.     .onBytesTransferred(/* source= */ this, dataSpec, isNetwork, bytesTransferred);
  13.  }
  14. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Skips any bytes that need skipping. Else does nothing.
  3.  * <p>
  4.  * This implementation is based roughly on {@code libcore.io.Streams.skipByReading()}.
  5.  *
  6.  * @throws InterruptedIOException If the thread is interrupted during the operation.
  7.  * @throws EOFException If the end of the input stream is reached before the bytes are skipped.
  8.  */
  9. private void skipInternal() throws IOException {
  10.  if (bytesSkipped == bytesToSkip) {
  11.   return;
  12.  }
  13.  while (bytesSkipped != bytesToSkip) {
  14.   int readLength = (int) Math.min(bytesToSkip - bytesSkipped, SKIP_BUFFER.length);
  15.   int read = castNonNull(responseByteStream).read(SKIP_BUFFER, 0, readLength);
  16.   if (Thread.currentThread().isInterrupted()) {
  17.    throw new InterruptedIOException();
  18.   }
  19.   if (read == -1) {
  20.    throw new EOFException();
  21.   }
  22.   bytesSkipped += read;
  23.   bytesTransferred(read);
  24.  }
  25. }

代码示例来源：origin: google/ExoPlayer

  1. int read = castNonNull(responseByteStream).read(buffer, offset, readLength);
  2. if (read == -1) {
  3.  if (bytesToRead != C.LENGTH_UNSET) {

代码示例来源：origin: google/ExoPlayer

  1. private void maybeUpdateLatency(long systemTimeUs) {
  2.  if (isOutputPcm
  3.    && getLatencyMethod != null
  4.    && systemTimeUs - lastLatencySampleTimeUs >= MIN_LATENCY_SAMPLE_INTERVAL_US) {
  5.   try {
  6.    // Compute the audio track latency, excluding the latency due to the buffer (leaving
  7.    // latency due to the mixer and audio hardware driver).
  8.    latencyUs =
  9.      castNonNull((Integer) getLatencyMethod.invoke(Assertions.checkNotNull(audioTrack)))
  10.          * 1000L
  11.        - bufferSizeUs;
  12.    // Sanity check that the latency is non-negative.
  13.    latencyUs = Math.max(latencyUs, 0);
  14.    // Sanity check that the latency isn't too large.
  15.    if (latencyUs > MAX_LATENCY_US) {
  16.     listener.onInvalidLatency(latencyUs);
  17.     latencyUs = 0;
  18.    }
  19.   } catch (Exception e) {
  20.    // The method existed, but doesn't work. Don't try again.
  21.    getLatencyMethod = null;
  22.   }
  23.   lastLatencySampleTimeUs = systemTimeUs;
  24.  }
  25. }

代码示例来源：origin: google/ExoPlayer

  1. case MSG_ADD:
  2.  MessageData<Collection<MediaSourceHolder>> addMessage =
  3.    (MessageData<Collection<MediaSourceHolder>>) Util.castNonNull(msg.obj);
  4.  shuffleOrder = shuffleOrder.cloneAndInsert(addMessage.index, addMessage.customData.size());
  5.  addMediaSourcesInternal(addMessage.index, addMessage.customData);
  6.  break;
  7. case MSG_REMOVE:
  8.  MessageData<Integer> removeMessage = (MessageData<Integer>) Util.castNonNull(msg.obj);
  9.  int fromIndex = removeMessage.index;
  10.  int toIndex = removeMessage.customData;
  11.  break;
  12. case MSG_MOVE:
  13.  MessageData<Integer> moveMessage = (MessageData<Integer>) Util.castNonNull(msg.obj);
  14.  shuffleOrder = shuffleOrder.cloneAndRemove(moveMessage.index, moveMessage.index + 1);
  15.  shuffleOrder = shuffleOrder.cloneAndInsert(moveMessage.customData, 1);
  16. case MSG_SET_SHUFFLE_ORDER:
  17.  MessageData<ShuffleOrder> shuffleOrderMessage =
  18.    (MessageData<ShuffleOrder>) Util.castNonNull(msg.obj);
  19.  shuffleOrder = shuffleOrderMessage.customData;
  20.  scheduleListenerNotification(shuffleOrderMessage.actionOnCompletion);
  21.  break;
  22. case MSG_ON_COMPLETION:
  23.  List<Runnable> actionsOnCompletion = (List<Runnable>) Util.castNonNull(msg.obj);
  24.  Handler handler = Assertions.checkNotNull(applicationThreadHandler);
  25.  for (int i = 0; i < actionsOnCompletion.size(); i++) {

代码示例来源：origin: google/ExoPlayer

  1. @Override
  2. public void render(long positionUs, long elapsedRealtimeUs) throws ExoPlaybackException {
  3.  // Keep reading available samples as long as the sample time is not too far into the future.
  4.  while (!hasReadStreamToEnd() && lastTimestampUs < positionUs + SAMPLE_WINDOW_DURATION_US) {
  5.   buffer.clear();
  6.   int result = readSource(formatHolder, buffer, /* formatRequired= */ false);
  7.   if (result != C.RESULT_BUFFER_READ || buffer.isEndOfStream()) {
  8.    return;
  9.   }
  10.   buffer.flip();
  11.   lastTimestampUs = buffer.timeUs;
  12.   if (listener != null) {
  13.    float[] rotation = parseMetadata(buffer.data);
  14.    if (rotation != null) {
  15.     Util.castNonNull(listener).onCameraMotion(lastTimestampUs - offsetUs, rotation);
  16.    }
  17.   }
  18.  }
  19. }

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