在spinner上选择某一项后没有文本出现

Question

我在程序中设置了一个spinner，但是选择spinner的任何一项，都没有文本出现。 错误出在哪里呢？

ArrayAdapter<String> pSelectAdapter =  new ArrayAdapter<String>(PCreate.this,android.R.layout.simple_spinner_item, pNames);
    pSelectAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    selectP.setAdapter(pSelectAdapter);

    selectP.setOnItemSelectedListener(new OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1,
            int arg2, long arg3) {
        // TODO Auto-generated method stub
        String nameSelected = pNames.get(arg2);
        pID = pMatch.get(nameSelected);
        p.setText(nameSelected);

        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
        // TODO Auto-generated method stub

        }
    });

Answer 1

我觉得你忘记创建 View 类的对象了，请用代码匹配这一行。

selectP.setOnItemSelectedListener(new View.OnItemSelectedListener() {
(new View.OnItemSelectedListener() instaed (new OnItemSelectedListener()