How to display blob image in react native
15,873
You can convert the blob
to base64
from FileReader
api and then display it.
Code:
const fileReaderInstance = new FileReader();
fileReaderInstance.readAsDataURL(blob);
fileReaderInstance.onload = () => {
base64data = fileReaderInstance.result;
console.log(base64data);
}
and display it once you get it as:
<Image source={{uri: base64ImageData}} style={{ height: 200, width: null, flex: 1 }} />
Author by
Caitlin Wen
Updated on June 12, 2022Comments
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Caitlin Wen almost 2 years
Here is my code:
<Image source={BlobImage} style={{ height: 200, width: null, flex: 1 }} />
Where BlobImage is an image in blob string like this
c916851b-3e53-432d-8d18-3de293776859?offset=0&size=371537
.Edit:
I upload a base64 image to cpanel, and it is automatically cast to Blob. When I fetch the data from cpanel, I get a buffer array and unable to display it. I tried this but it doesn't work
var blob = new Blob([img], {type: "image/png"}) var blobUrl = URL.createObjectURL(blob);
And in render
<Image source={{uri:blobUrl}} style={{ height: 200, width: null, flex: 1 }} />
Where
img
is the raw data from cpanel and it's a byte array.This is how I get the data using react-native-photo-upload
<PhotoUpload onPhotoSelect={avatar => { if (avatar) { this.setState({ imageUrl: avatar }); }}}>
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Ma9ic about 5 yearsIs this still the best option when using expo?
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A G over 2 yearsWorks as of Nov, 2021.