getSdkVersion function

Implementation

int? getSdkVersion() {
  int? sdk;
  try {
    const title = 'compileSdkVersion';
    File('android/app/build.gradle')
        .readAsStringSync()
        .split('\n')
        .forEach((line) {
      if (line.contains(title)) {
        var sdkVersion = line.substring(line.indexOf(title) + title.length);
        sdk = int.tryParse(sdkVersion.trim());
      }
    });
  } catch (e) {
    return null;
  }
  return sdk;
}