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onProgress method of the TextRecognitionCallback interface

Reports the approximate percentage of operation completed and delivers the warnings that occurred during processing. Allows you to cancel processing.

note Note: This method is a part of an interface which is available only in the extended version of the library.

This method is to be implemented on the client side, which may include a progress indicator and/or a message to the user about the warnings.

boolean onProgress( int percentage, Warning warning )



The approximate percentage of the work currently done. This parameter is in the range from 0 to 100.


The warning which occurred, if any; represented by a constant of the Warning enumeration.

Return values

The method should return true if you wish to terminate the current operation, false otherwise.