flutter获取本地图片高度、宽度

  /*获取本地图片宽度
  * */
  getLocalImageWidth(String path){
    int width;
    Completer<int> completer = new Completer<int>();
    Image image = Image.file(File.fromUri(Uri.parse(path)));
    // 预先获取图片信息
    image.image.resolve(new ImageConfiguration()).addListener(
        new ImageStreamListener((ImageInfo info, bool _) {
          width = info.image.width;
          print('height===$width');
          completer.complete(width);
        }));
    return completer.future;
  }

  /*获取本地图片高度
  * */
  getLocalImageHeight(String path){
    int height;
    Completer<int> completer = new Completer<int>();
    Image image = Image.file(File.fromUri(Uri.parse(path)));
    // 预先获取图片信息
    image.image.resolve(new ImageConfiguration()).addListener(
        new ImageStreamListener((ImageInfo info, bool _) {
          height = info.image.height;
          print('height===$height');
          completer.complete(height);
        }));
    return completer.future;
  }
//使用
int originalWidth,originalHeight;
originalWidth =  await Utils().getLocalImageWidth(imagePath);
originalHeight = await Utils().getLocalImageHeight(imagePath);