android - How to create a folder in internal storage like WhatsApp or Allo?

Question

I have a task to save the bitmap in internal storage. I tried in all ways. I can't get the required output. The folder created and saved in internal device in folder data/user/0/data/~~. --tried

File mediaFile = new File(c.getExternalCacheDir(), "/MaherSaad");

worked and create folder in cache -- android/data/com.myapp.~/cache

i want to create folder and appear like that

internal storage / Myapp / newFolder

Answer 1

finally found the solution creating a folder outside data folder

simply

File mFolder = new File(Environment.getExternalStorageDirectory(), "Folder_Name");
            if (!mFolder.exists()) {
                boolean b =  mFolder.mkdirs();

            }

the mistake is not handling the Run time permission code simply ...

String TAG = "Permsission : ";
        if (Build.VERSION.SDK_INT >= 23) {
            if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    == PackageManager.PERMISSION_GRANTED) {
                Log.v(TAG,"Permission is granted");
                return true;
            } else {

                Log.v(TAG,"Permission is revoked");
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                return false;
            }
        }
        else { //permission is automatically granted on sdk<23 upon installation
            Log.v(TAG,"Permission is granted");
            return true;
        }

handle permission

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        String TAG = "Permsission : ";
        if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
            Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);
            //resume tasks needing this permission
            //Define the path you want
            File mFolder = new File(Environment.getExternalStorageDirectory(), "Folder_Name");
            if (!mFolder.exists()) {
                boolean b =  mFolder.mkdirs();

            }
        }
    }