Method progress

android/src/org/coolreader/crengine/Scanner.java:244–254

( int percent )

			boolean progressShown = false;
			final Collection<FileInfo> booksToSave = new ArrayList<FileInfo>();
			void progress( int percent )
			{
				if ( recursiveScan )
					return; // no progress dialog for recursive scan
				long ts = System.currentTimeMillis();
				if ( ts>=nextProgressTime ) {
					engine.showProgress(percent, R.string.progress_scanning);
					nextProgressTime = ts + 1500;
					progressShown = true;
				}
			}
			
			public void done() {
				baseDir.isScanned = true;