问题描述

我有一个包含 3 个 EditText 的对话框，用于获取 ftp 地址、用户名和密码.我使用 .setNeutralButton 创建了一个测试连接"按钮.我让它连接到 ftp 并显示一个带有结果的 Toast，但我不希望测试按钮关闭对话框.如何在连接测试期间保持对话框打开?

I have a Dialog with 3 EditTexts that I use to get an ftp address, username, and password. I used .setNeutralButton to create a button to "Test Connection". I got it working to connect to the ftp and show a Toast with the result but I don't want the Test Button to close the Dialog. How can I keep the Dialog open during the connection test?

livePreviewChk.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        LinearLayout lila1 = new LinearLayout(NewSite.this);
        lila1.setOrientation(1); // 1 is for vertical orientation

        final EditText serverName = new EditText(NewSite.this);
        serverName.setHint("Server name");

        final EditText serverAddress = new EditText(NewSite.this);
        serverAddress.setHint("Server Address");

        final EditText username = new EditText(NewSite.this);
        username.setHint("Username:");

        final EditText password = new EditText(NewSite.this);
        password.setHint("Password");

        AlertDialog.Builder alt_bld = new AlertDialog.Builder(
                NewSite.this);
        alt_bld.setIcon(R.drawable.ftpicon);
        alt_bld.setTitle("Enter the login details for the host FTP")
                .setCancelable(true)
                .setPositiveButton("Save",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                }
                            }
                        })
                .setNeutralButton("Test Connection",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                FTPConnector testConnection = new FTPConnector();
                                boolean status = testConnection
                                        .ftpConnect(host, user, pass,
                                                port);
                                if (status == true) {
                                    connectionSuccessfull = true;
                                } else {
                                    connectionSuccessfull = false;
                                }
                            }
                        })
                .setNegativeButton("Cancel",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,
                                    int id) {
                                // if this button is clicked, just close
                                // the dialog box and do nothing
                                dialog.cancel();
                            }
                        });

        lila1.addView(serverName);
        lila1.addView(serverAddress);
        lila1.addView(username);
        lila1.addView(password);

        AlertDialog alert = alt_bld.create();
        alert.setView(lila1);
        alert.show();
    }
});

推荐答案

据我所知，不扩展 Dialog 类是不可能的.但是，使用您拥有的功能，将其放在自己的 Activity 中并使用 Dialog 主题 可能会更容易和更好.您所要做的就是为此将您的代码放入一个新的 Activity 中，并在您的 manifest 中使用 dialog 主题

From what I know, it is not possible without extending the Dialog class. However, with the functionality that you have it may be easier and better just to put it in its own Activity and use a Dialog theme. All you have to do is put your code into a new Activity for this and in your manifest use the dialog theme

<activity
        android:name="com.your.package.YourClassName"
        android:label="YOurLabel"
        android:theme="@android:style/Theme.Dialog" >
</activity>

这将提供 Dialog 的外观和感觉，同时包含在它自己的 Activity

This will give the look and feel of a Dialog while being contained in its own Activity

这是一个 关于扩展对话框的答案.我还没有看透这一切，但看起来如果你选择这个选项，它可能会给你你需要的东西.

Here is a SO answer on extending Dialog. I haven't looked through it all but looks like it may give you what you need if you choose this option.

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