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Return null if latRef or longRef's format is invalid on parsing location from EXIF

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This commit is contained in:
ashilkn 2023-04-28 17:21:08 +05:30
parent 27abbbcae2
commit e028d16173
1 changed files with 24 additions and 6 deletions
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30
lib/services/location_service.dart
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@ -198,16 +198,16 @@ class LocationService {
}
class GPSData {
final String? latRef;
String? latRef;
final List<double>? lat;
final String? longRef;
String? longRef;
final List<double>? long;
GPSData(this.latRef, this.lat, this.longRef, this.long);
Location? toLocationObj() {
final int latSign;
final int longSign;
int? latSign;
int? longSign;
if (lat == null || long == null) {
return null;
}
@ -225,8 +225,26 @@ class GPSData {
long![long!.indexOf(element)] = element.abs();
}
} else {
latSign = latRef == "N" ? 1 : -1;
longSign = longRef == "E" ? 1 : -1;
latRef = latRef!.toUpperCase();
longRef = longRef!.toUpperCase();
if (latRef!.startsWith("N")) {
latSign = 1;
} else if (latRef!.startsWith("S")) {
latSign = -1;
}
if (longRef!.startsWith("E")) {
longSign = 1;
} else if (longRef!.startsWith("W")) {
longSign = -1;
}
}
//At this point, latSign and longSign will only be null if latRef and longRef
//is of invalid format.
if (latSign == null || longSign == null) {
return null;
}
return Location(