setOutlineAlpha method

  1. @override
bool setOutlineAlpha(
  1. double alpha
)
override

Method is used to specify the opacity of the polyline’s outline. alpha Opacity multiplier (0 to 1). Values below 0 are set to 0. Default: 1. Returns true if the operation is successful, false otherwise.

Example:

// Set outline alpha
bool outlineAlphaSuccess = _polylineMapObject!.setOutlineAlpha(0.8);
print("Set polyline outline alpha to 0.8: $outlineAlphaSuccess");

Implementation

@override
bool setOutlineAlpha(double alpha) {
    final _setOutlineAlphaFfi = __lib.catchArgumentError(() => __lib.nativeLibrary.lookupFunction<
        Uint8 Function(Pointer<Void>, Float),
        int Function(Pointer<Void>, double)
      >('navigine_sdk_flutter_PolylineMapObject_setOutlineAlpha__Alpha'));
    final _alphaHandle = navigine_sdk_flutter_double_ToFfi(alpha);
    final _handle = this.handle;
    final __resultHandle = _setOutlineAlphaFfi(_handle, _alphaHandle);
    navigine_sdk_flutter_double_ReleaseFfiHandle(_alphaHandle);
    final _result = navigine_sdk_flutter_bool_FromFfi(__resultHandle);
    navigine_sdk_flutter_bool_ReleaseFfiHandle(__resultHandle);
    return _result;
}