TOAST

- Toast cơ bản:
Toast toast = Toast.makeText(MainActivity.this, "Hello World", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.TOP, 0, 0);
toast.show();
- Chèn View vào bên trong Toast:
LayoutInflater inflater = getLayoutInflater();
View layoutQC = inflater.inflate(R.layout.thongbao, (ViewGroup)findViewById(R.id.layoutThongbao));
Toast t = new Toast(MainActivity.this);
t.setView(layoutQC);
t.show();