Flutter How to save Image file to new folder in gallery?

Question

I want to save the image in the gallery after I get the file from the camera, how to create a new directory and save the image file that we have obtained from the camera?

 Future getImageCamera() async {
var imageFile = await ImagePicker.pickImage(
    source: ImageSource.camera, maxHeight: 20.0, maxWidth: 20.0);

DateTime ketF = new DateTime.now();
String baru = "${ketF.year}${ketF.month}${ketF.day}";

//proses kompres
final temDirk = await getTemporaryDirectory();
final pathss = temDirk.path;

int rand = new math.Random().nextInt(100000);

//mengganti nama file
// String juduld = controllerJudul.text;

img.Image gambard = img.decodeImage(imageFile.readAsBytesSync());
img.Image gambarKecilx = img.copyResize(gambard,
    700); //parameter awal adalah sumber gambar // parameter kedua ukuran width, hp=>1k

var kompresimg = new File("$pathss/image_$baru$rand.jpg")
  ..writeAsBytesSync(img.encodeJpg(gambarKecilx, quality: 95));

setState(() {
  _gambar = kompresimg;
  namafile = "image_$baru$rand.jpg";
});

Answer 1

You need to save the image into external storage directory for showing the image on gallery. Instead of getting temporary directory, obtain external storage directory.

final directory = await getExternalStorageDirectory();

You need to provide the permission on AndroidManifest.xml file of your android/app/src/main folder

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

then let's say that you want to create a folder named MyImages and add the new image to that folder,

final myImagePath = '${directory.path}/MyImages' ;
final myImgDir = await new Directory(myImagePath).create();

then write to the file to the path.

var kompresimg = new File("$myImagePath/image_$baru$rand.jpg")
  ..writeAsBytesSync(img.encodeJpg(gambarKecilx, quality: 95));

for getting the number of files, just obtain the files to a list and check the length of the list

var listOfFiles = await myImgDir.list(recursive: true).toList();
var count = countList.length;