0.1.6+1 fix issues #52. 0.1.6 sound null safety and WKWebView. 0.1.5 fix ssl and rotate scan problem. 0.1.4+2 fix point problem. 0.1.4 add RScanCamera. 0.1.3 add the barcode type and the point in result. 0.1.2 fix android camera draw. 0.1.1 add turn on / turn off flash lamp and get flash lamp status. 0.1.0 add ios platform and finish. 0.0.1 init project,and android platform finish.