flutter_package / mobile_scanner

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Navaron Bracke
71b9aa8c 1 parent 9c8bc1a1

intercept startup errors in example

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Showing 3 changed files with 15 additions and 33 deletions
@@ -25,23 +25,17 @@ class _BarcodeListScannerWithControllerState @@ -25,23 +25,17 @@ class _BarcodeListScannerWithControllerState
25 ); 25 );
26 26
27 bool isStarted = true; 27 bool isStarted = true;
  28 + MobileScannerException? exception;
28 29
29 void _startOrStop() { 30 void _startOrStop() {
30 if (isStarted) { 31 if (isStarted) {
31 controller.stop(); 32 controller.stop();
32 } else { 33 } else {
33 controller.start().catchError((error) { 34 controller.start().catchError((error) {
34 - final exception = error as MobileScannerException;  
35 -  
36 - switch (exception.errorCode) {  
37 - case MobileScannerErrorCode.controllerUninitialized:  
38 - break; // This error code is not used by `start()`.  
39 - case MobileScannerErrorCode.genericError:  
40 - debugPrint('Scanner failed to start');  
41 - break;  
42 - case MobileScannerErrorCode.permissionDenied:  
43 - debugPrint('Camera permission denied');  
44 - break; 35 + if (mounted) {
  36 + setState(() {
  37 + exception = error as MobileScannerException;
  38 + });
45 } 39 }
46 }); 40 });
47 } 41 }
@@ -25,23 +25,17 @@ class _BarcodeScannerWithControllerState @@ -25,23 +25,17 @@ class _BarcodeScannerWithControllerState
25 ); 25 );
26 26
27 bool isStarted = true; 27 bool isStarted = true;
  28 + MobileScannerException? exception;
28 29
29 void _startOrStop() { 30 void _startOrStop() {
30 if (isStarted) { 31 if (isStarted) {
31 controller.stop(); 32 controller.stop();
32 } else { 33 } else {
33 controller.start().catchError((error) { 34 controller.start().catchError((error) {
34 - final exception = error as MobileScannerException;  
35 -  
36 - switch (exception.errorCode) {  
37 - case MobileScannerErrorCode.controllerUninitialized:  
38 - break; // This error code is not used by `start()`.  
39 - case MobileScannerErrorCode.genericError:  
40 - debugPrint('Scanner failed to start');  
41 - break;  
42 - case MobileScannerErrorCode.permissionDenied:  
43 - debugPrint('Camera permission denied');  
44 - break; 35 + if (mounted) {
  36 + setState(() {
  37 + exception = error as MobileScannerException;
  38 + });
45 } 39 }
46 }); 40 });
47 } 41 }
@@ -27,23 +27,17 @@ class _BarcodeScannerReturningImageState @@ -27,23 +27,17 @@ class _BarcodeScannerReturningImageState
27 ); 27 );
28 28
29 bool isStarted = true; 29 bool isStarted = true;
  30 + MobileScannerException? exception;
30 31
31 void _startOrStop() { 32 void _startOrStop() {
32 if (isStarted) { 33 if (isStarted) {
33 controller.stop(); 34 controller.stop();
34 } else { 35 } else {
35 controller.start().catchError((error) { 36 controller.start().catchError((error) {
36 - final exception = error as MobileScannerException;  
37 -  
38 - switch (exception.errorCode) {  
39 - case MobileScannerErrorCode.controllerUninitialized:  
40 - break; // This error code is not used by `start()`.  
41 - case MobileScannerErrorCode.genericError:  
42 - debugPrint('Scanner failed to start');  
43 - break;  
44 - case MobileScannerErrorCode.permissionDenied:  
45 - debugPrint('Camera permission denied');  
46 - break; 37 + if (mounted) {
  38 + setState(() {
  39 + exception = error as MobileScannerException;
  40 + });
47 } 41 }
48 }); 42 });
49 } 43 }