imageToStorage function
将文件拷贝到Storage ID
sourcePath 源文件路径
返回 String 存储ID,如果文件不存在则返回null
Implementation
String? imageToStorage(String sourcePath) {
String uuid = Uuid().v4();
String destFile = FilePath.imagePath + uuid;
File file = File(sourcePath);
if (file.existsSync()) {
file.copySync(destFile);
return uuid;
} else {
return null;
}
}