怎么把PixelMap图片转BASE64
ImagePackerimagePackerImagePacker.create();ByteArrayOutputStreambyteArrayOutputStreamnewByteArrayOutputStream();ImagePacker.PackingOptionspackingOptionsnewImagePacker.PackingOptions();imagePacker.initializePacking(byteArrayOutputStream,packingOptions);imagePacker.addImage(pixelMap);imagePacker.finalizePacking();byte[]bytesbyteArrayOutputStream.toByteArray();Stringbase64StringBase64.getEncoder().encodeToString(bytes);