I'm trying to display a toast when you click the button "boton\_continuar" given the following conditions:
EditExt vacuum (numero\_celular) and ckeckbox (check) check no. This is my code

```
boton_continuar.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View arg0) {
        //Verificamos que se halla clikeado y se halla ingresado
        if(check.isChecked() && numero_celular.getText().length() != 0){

            Intent intent = new Intent(RegisterActivity.this, PrincipalActivity.class);
            startActivity(intent);
        }else{
            Context contexto = getApplicationContext();
            if(!check.isChecked()){                 
                Toast.makeText(contexto, "Debe aceptar los términos", 2000);
            }
            if(numero_celular.getText().length() == 0){
                Toast.makeText(contexto, "Debe ingresar su número", 2000);
            }
    }
}});

```