RequestLoggingListener.java 文件源码

@Override
public synchronized void onRequestFailure(
    ImageRequest request,
    String requestId,
    Throwable throwable,
    boolean isPrefetch) {
  if (FLog.isLoggable(FLog.WARN)) {
    Long startTime = mRequestStartTimeMap.remove(requestId);
    long currentTime = getTime();
    FLog.w(
        TAG,
        "time %d: onRequestFailure: {requestId: %s, elapsedTime: %d ms, throwable: %s}",
        currentTime,
        requestId,
        getElapsedTime(startTime, currentTime),
        throwable.toString());
  }
}