Flutter asset to base64

Base64 is an encoding algorithm that converts any characters, binary data, and even images or sound files into a readable string , which can be saved or transported over the network without data loss. The characters generated from Base64 encoding consist of Latin letters, digits, plus, and slash.

toByteData() method allows converting the image into a byte array. We need to pass the format in the format argument which specifies the format in which the bytes will be returned. It’ll return the future that completes with binary data or error.

Practice

here comes the main function which will convert any Image URL to the File format. Future<File> urlToFile(String imageUrl) async {// generate random number. var rng = new Random();// get temporary directory of device. Directory tempDir = await getTemporaryDirectory();// get temporary path from temporary directory.