public interface ProgressListener
ProgressListenermay be used to display a progress bar or do stuff like that.
void update(long pBytesRead, long pContentLength, int pItems)
pBytesRead- The total number of bytes, which have been read so far.
pContentLength- The total number of bytes, which are being read. May be -1, if this number is unknown.
pItems- The number of the field, which is currently being read. (0 = no item so far, 1 = first item is being read, ...)
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