Customize toast in asyntask in android

Customize toast in asyntask in android

I just wanna ask if it is possible to use my customize toast in
onPostExecute of my Asyntask in android. If yes then how? I tried to put
it on the onPostExecute but I got a lot red lines. Here is my code for my
customize toast:
Typeface tfR= Typeface.createFromAsset(getAssets(), "Gothic_Regular.TTF");
LayoutInflater inflater = getLayoutInflater();
View layouttoast = inflater.inflate(R.layout.toast_bg,
(ViewGroup)findViewById(R.id.toastAttribute));
TextView msg = ((TextView) layouttoast.findViewById(R.id.txt_toast));
msg.setTypeface(tfR);
msg.setText(toast_msg);
msg.setTextSize(TypedValue.COMPLEX_UNIT_PX,16);
Toast mytoast = new Toast(getBaseContext());
mytoast.setView(layouttoast);
mytoast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
mytoast.setDuration(Toast.LENGTH_SHORT);
mytoast.show();
Then I want to put it here:
protected void onPostExecute(Boolean valid)
{
progressDialog.dismiss();
Log.d("RESULT", String.valueOf(valid));
if(valid){
//Customzize toast here.
new DoPost(mContext,_username, _password, _code, _remarks, _date,
_province, _infotype,_competitor,_brands, _segments).execute();
}else{
//Customzize toast here.
}
}