为什么SpinnerAdapter getView（）无法正常工作？

Question

我正在重写SpinnerAdapter并使用getView方法。现在我的目标是设置一个默认文本，以便提示用户做什么（在这种情况下，选择一所学校）。现在我做了一个arraylist并在我的结尾处提示我。我设置了一个布尔值来检查这是否是用户第一次查看。如果是这样，我设置适当的视图并删除arraylist的最后一个元素。现在我的问题出现在我尝试选择下拉视图的第一个元素时。当我选择它时，默认文本保持不变。它只会在我选择不同视图时更改。有任何想法吗？谢谢！

boolean firstTime = true;

@Override
/**
* getView sets the spinner view when it 
* isn't in drop down view.
*/
public View getView(int position, View convertView, ViewGroup parent) {

    /*
     * The firstTime boolean variable determines if the client
     * hasn't made any previous selection. This enables a default
     * text explaining to the client that they must select the
     * appropriate school.
    */
    if (firstTime) {
        firstTime = false;
        TextView firstView = new TextView(ForgotPasswordActivity.this);
        firstView.setTypeface(robotoFont);
        firstView.setText(spinnerSchoolList.get(spinnerSchoolList.size() - 1));
        spinnerSchoolList.remove(spinnerSchoolList.size() - 1);
        return firstView;
    }
    TextView secondView = new TextView(ForgotPasswordActivity.this);
    secondView.setTypeface(robotoFont);
    secondView.setText(spinnerSchoolList.get(position));
    tickChange(correctEmail, selectedSchool);
    return secondView;
}