# TextDataScannerStep constructor

TextDataScannerStep(

1. String guidanceText,
2. String? pattern,
3. bool? shouldMatchSubstring,
4. double preferredZoom,
5. AspectRatio aspectRatio,
6. double? unzoomedFinderHeight,
7. String? allowedSymbols,
8. int? significantShakeDelay,

)

## Implementation

    TextDataScannerStep(
      this.guidanceText,
      this.pattern,
      this.shouldMatchSubstring,
      this.preferredZoom,
      this.aspectRatio,
      this.unzoomedFinderHeight,
      this.allowedSymbols,
      this.significantShakeDelay,
    );