创建AlertDialog的问题

Question

我似乎遇到了创建AlertDialog的问题.我想要做的是创建一个自定义AlertDialog,当单击一个特定的RadioButton时弹出.这是我的相关代码:

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        m_Minutes = -1;
        m_this=this;

        String prefName = getString(R.string.prefsfile);
        SharedPreferences settings = getSharedPreferences(prefName, 0);
        String defaultTextBackMessage = settings.getString("textBackMessage", getString(R.string.defaultTextBackMessage));
        EditText txtMessage = (EditText)findViewById(R.id.editText1);
        txtMessage.setText(defaultTextBackMessage);

        final Button button = (Button)findViewById(R.id.button1);
        final RadioButton manualButton = (RadioButton)findViewById(R.id.radio0);
        final RadioButton button15 = (RadioButton)findViewById(R.id.radio1);
        final RadioButton button30 = (RadioButton)findViewById(R.id.radio2);
        final RadioButton customButton = (RadioButton)findViewById(R.id.radio3);

        manualButton.setChecked(true);
        customButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Context c = v.getContext();
                LayoutInflater factory = LayoutInflater.from(v.getContext());
                final View minuteEntryView = factory.inflate(R.layout.customtime, null);
                AlertDialog ad = AlertDialog.Builder(c).create(); // this is the trouble line
            }
        });

我在线上收到错误AlertDialog ad = AlertDialog.Builder(c).create();.我得到的错误是The Method Builder(Context) is undefined for the type AlertDialog.但是,很明显,Google API Docs确实有一个Builder构造函数.我究竟做错了什么？

Answer 1

你不应该这样说......

AlertDialog ad = new AlertDialog.Builder(c).create();

你忘记了newkeyWord ..正如你可以清楚地看到的那样,它没有发现Method,这意味着你以通常的方式调用它的构造函数,但是你调用方法的方式.