<uses-permission

android:name="android.permission.WRITE_EXTERNAL_STORAGE"

tools:ignore="ScopedStorage" />

Bitmap bmp;

btnShareQR.setOnClickListener(v -> shareImg(bmp));

private void shareImg(Bitmap bitmap){

Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, null,null));

Intent intent = new Intent();

intent.setAction(Intent.ACTION_SEND);

intent.setType("image/png");

intent.putExtra(Intent.EXTRA_STREAM, uri);

intent = Intent.createChooser(intent, "Share");

startActivity(intent);

}

Bitmap bmp;

btnLuuQR.setOnClickListener(v -> {

if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE)

== PackageManager.PERMISSION_GRANTED){

SaveQRcode(bmp);

}

});

private void SaveQRcode(Bitmap bitmap) {

try {

String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();

File myDir = new File(root + "/saved_images");

myDir.mkdirs();

String fname = "QR_" + tvTenDuAn.getText() + ".jpg";

File file = new File(myDir, fname);

FileOutputStream out = new FileOutputStream(file);

bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);

out.flush();

out.close();

Snackbar snackbar = Snackbar.make(rlCreateQRcode, getString(R.string.da_luu_ma_QR), Snackbar.LENGTH_LONG);

snackbar.show();

} catch (Exception e) {

Toast.makeText(this, e.toString(), Toast.LENGTH_SHORT).show();

}

}