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Image saving in local storage. #20

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ibrahim-cse opened this issue Feb 9, 2022 · 6 comments
Closed

Image saving in local storage. #20

ibrahim-cse opened this issue Feb 9, 2022 · 6 comments

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@ibrahim-cse
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Hello,
I am trying to save the image in local storage using a path. But facing some issues. I was using your code but seems like I am unable to solve these errors.
image
@omarhurani
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Can you show me the full code please?

@ibrahim-cse
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ibrahim-cse commented Feb 9, 2022 via email

@omarhurani
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omarhurani commented Feb 9, 2022 •
edited
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Yes, you'll just need to make the function asynchronous and await the future.

void renderAndSaveImage() async {
    if (backgroundImage == null) return;
    final backgroundImageSize = Size(
        backgroundImage!.width.toDouble(), backgroundImage!.height.toDouble());

    // Render the image
    // Returns a [ui.Image] object, convert to to byte data and then to Uint8List
    final image = await controller.renderImage(backgroundImageSize);
    final byteData = await image.pngBytes;

    if(byteData  == null) return;

    // Save image to the temporary directory.
    final file = File('${(await getTemporaryDirectory()).path}/img.png');
    await file.writeAsBytes(byteData.buffer.asUint8List(byteData.offsetInBytes, byteData.lengthInBytes));
}

@ibrahim-cse
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ibrahim-cse commented Feb 9, 2022 via email

@omarhurani
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Well getTemporaryDirectory gets the cache directory of the device. Check out the path provider documentation to see which directory suits you better.

@ibrahim-cse
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ibrahim-cse commented Feb 10, 2022 via email

vickyleu pushed a commit to vickyleu/flutter_painter that referenced this issue Sep 8, 2022
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vickyleu pushed a commit to vickyleu/flutter_painter that referenced this issue Sep 8, 2022
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fullscreen zoom in/out in macos and windows compatible, but zoom still crash

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@omarhurani @ibrahim-cse