flutter获取本地图片宽高

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于 2024-12-23 15:08:20 发布

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文章标签： flutter android

本文链接：https://blog.csdn.net/androidhyf/article/details/144667660

版权

/*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('width===$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;
  }