setFilter method

Future<void> setFilter(
  1. int type, {
  2. String? filePath,
})

The set filter

Android 滤镜类型包含：15 边缘检测（性能模式）、43 边缘检测 Sobel 高质量（RootEncoder 2.7.0+）等，详见原生 CameraNativeView。

Throws a CameraException if the capture fails.

Implementation

Future<void> setFilter(int type, {String? filePath}) async {
  if (!value.isInitialized! || _isDisposed) {
    throw CameraException(
      'Uninitialized CameraController.',
      'setFilter was called on uninitialized CameraController',
    );
  }
  if (!Platform.isAndroid) {
    throw CameraException(
      'Unsupported platforms.',
      'setFilter supported android.',
    );
  }
  try {
    await _channel.invokeMethod<void>(
      'setFilter',
      <String, dynamic>{'type': type, 'filePath': filePath},
    );
  } on PlatformException catch (e) {
    throw CameraException(e.code, e.message);
  }
}