Android 带有LinearLayout的AlertDialog不应在单击按钮时关闭

我只希望我的AlertDialog在满足某些条件且给定的名称和姓氏有效时被取消，否则它应该始终位于父视图的顶部。我的代码是：

    final AlertDialog.Builder alert = new AlertDialog.Builder(this);
    final TextView instructions = new TextView(this);
    instructions.setText(R.string.alert_enter_data);
    final EditText name = new EditText(this);
    name.setHint(R.string.name);
    final EditText surname = new EditText(this);
    surname.setHint(R.string.surname);
    LinearLayout ll=new LinearLayout(this);
    ll.setOrientation(LinearLayout.VERTICAL);
    ll.addView(instructions);
    ll.addView(name);
    ll.addView(surname);
    alert.setView(ll);
    alert.setNeutralButton(R.string.enter, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int whichButton) {
            String name_txt = name.getText().toString();
            String surname_txt = surname.getText().toString();
            if ((name_txt.length() > 1) && (surname_txt.length() > 1)) {
                dialog.dismiss();
            }
        }
    });
    final AlertDialog alert_dialog = alert.create();
    alert_dialog.setCanceledOnTouchOutside(false);
    alert_dialog.show();

使用此代码，无论输入文本如何，按下按钮时AlertDialog都会消失。然后我试了一下：

alert_dialog.setOnShowListener(new DialogInterface.OnShowListener() {

    @Override
    public void onShow(DialogInterface dialog) {

        Button b = alert.getButton(AlertDialog.BUTTON_POSITIVE);
        b.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                String name_txt = name.getText().toString();
                String surname_txt = surname.getText().toString();
                String email_txt = email.getText().toString();
                String cellphone_txt = cellphone.getText().toString();
                String postcode_txt = postcode.getText().toString();
                if ((name_txt.length() > 1) && (surname_txt.length() > 1) && (email_txt.length() > 4)) {
                    if (debug_mode) {Log.i(TAG,"clause 1");}
                    String data_to_upload = name_txt + ", " + surname_txt + ", " + email_txt + ", "+ cellphone_txt + ", " + postcode_txt + "\n";
                    // upload_to_github(data_to_upload);
                    alert_dialog.dismiss();
                }
            }
        });
    }
});

但这样我就一点也不需要扣子了。“警报”对话框仅包含编辑文本字段

alert.setNeutralButton(R.string.enter, new DialogInterface.OnClickListener() {

及

两者都是不同的按钮

试一试

按钮b=alert.GetButtonAllertDialog.Button\u中性

---

你读过这里吗。您需要使用dialog.GetButtonAllertDialog.button\u POSITIVE.setOnClickListener….覆盖按钮侦听器，以防止AlertDialog在选择单击时自动关闭。。。。您可以删除showListener，因为它不是必需的，请小心，在更改按钮Listener之前，您需要创建并显示对话框。这是我在第二个代码片段中所做的，但这样我就根本没有按钮了-我想是因为我使用的是LinearLayout，但我在这里迷路了。

Button b = alert.getButton(AlertDialog.BUTTON_POSITIVE);