captureAndSaveScreenshot static method

Future<ScreenshotDetails?> captureAndSaveScreenshot(GlobalKey<State<StatefulWidget>> key)

Implementation

static Future<ScreenshotDetails?> captureAndSaveScreenshot(
  GlobalKey key,
) async {
  try {
    RenderRepaintBoundary? boundary =
        key.currentContext?.findRenderObject() as RenderRepaintBoundary?;

    if (boundary != null) {
      // No need for the delay; toImage() already waits for rendering
      ui.Image image = await boundary.toImage(pixelRatio: 2.0);

      final data = await image.toByteData(
        format: ui.ImageByteFormat.png,
      );

      if (data == null) {
        NLogger.e('Error: Could not convert image to byte data.');
        return null;
      }

      final bytes = data.buffer.asUint8List(); // No need for toList()

      final Directory cacheDir = await getTemporaryDirectory();
      final String filePath =
          '${cacheDir.path}/screenshot_${DateTime.now().millisecondsSinceEpoch}.png';
      final File imageFile = File(filePath);

      await imageFile.writeAsBytes(bytes);

      final Size imageDimensions = Size(
        image.width.toDouble(),
        image.height.toDouble(),
      );

      NLogger.i('Screenshot saved to: $filePath');
      NLogger.i('Screenshot dimensions: $imageDimensions');

      return ScreenshotDetails(
        filePath: filePath,
        screenshotSize: imageDimensions,
      );
    } else {
      NLogger.e('Error: Could not find RenderRepaintBoundary.');
      return null;
    }
  } catch (e) {
    NLogger.e('Error capturing and saving screenshot: $e');
    return null;
  }
}