Im trying to upload images from Android app to Php Server . I found way to upload the image by encode it as base64 using c# and decode it again using php base64 decoder . Everything working well i can upload the image to the server successfully but after i upload it, the images dose not open using any image viewer i got this error
couldn't open this file
it just works inside the chrome or edge internet explorer or any other internet explorer. I hope you could help me to open it using image viewer like windows images viewer my c# code is like :
public override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
if ((requestCode == PickImageId) && (resultCode == Result.Ok) && (data != null))
{
Stream stream = Activity.ContentResolver.OpenInputStream(data.Data);
Bitmap bitmap = BitmapFactory.DecodeStream(stream);
MemoryStream memStream = new MemoryStream();
bitmap.Compress(Bitmap.CompressFormat.Webp, 100, memStream);
byte[] picData = memStream.ToArray();
WebClient client = new WebClient();
Uri uri = new Uri(statics_class.request_url+"request.php");
NameValueCollection parameters = new NameValueCollection();
parameters.Add("Image", Convert.ToBase64String(picData));
parameters.Add("Image_id", image_id.ToString());
parameters.Add("user_id", user_id);
client.UploadValuesAsync(uri, parameters);
client.UploadValuesCompleted += Client_UploadValuesCompleted;
}
}
And my php code :
if (isset($_POST['Image']) && isset($_POST['Image_id']) && isset($_POST['user_id']))
{
$user_id = $_POST['user_id'] ;
$Image_id = $_POST['Image_id'] ;
$now = DateTime::createFromFormat('U.u',microtime(true));
$id = $now->format('YmdHisu');
$upload_folder = "upload/$user_id";
if(!is_dir($upload_folder)){
mkdir($upload_folder);
}
$path = "upload/$user_id/$id.jpg";
$image = $_POST['Image'] ;
if(file_put_contents($path , base64_decode($image)) != false){
printf('<img src="data:image/jpg;base64,%s" />', $image);
echo "successed ";
exit;
}else{
echo "failed";
}
}
