Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
303 views
in Technique[技术] by (71.8m points)

android - How can I get the results from an AlertDialog?

I am using an AlertDialog.Builder to display a dialog to prompt the user to enter a password, I then want to save that password in a preference, however I can't figure out how to get the result from the alert dialog's input method.

Here is essentially what I would like to be able to do:

    String result;
    AlertDialog.Builder b = new AlertDialog.Builder(this);
    b.setTitle("Please enter a password");
    final EditText input = new EditText(this);
    b.setView(input);
    b.setPositiveButton("OK", new DialogInterface.OnClickListener()
    {
        @Override
        public void onClick(DialogInterface dialog, int whichButton)
        {
           //I get a compile error here, it wants result to be final.
           result = input.getText().toString();
        }
    });
    b.setNegativeButton("CANCEL", null);
    b.create().show();

However, I am open to doing something such as showDialog(int); then using the onCreateDialog(int) method and somehow setting the result and receiving it in some other method, but I have no idea how to go about the last part.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)
public class MyActivity extends Activity {
    private String result;

    void showDialog() {
        AlertDialog.Builder b = new AlertDialog.Builder(this);
        b.setTitle("Please enter a password");
        final EditText input = new EditText(this);
        b.setView(input);
        b.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int whichButton) {
                result = input.getText().toString();
            }
        });
        b.setNegativeButton("CANCEL", null);
        b.show();
    }
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

2.1m questions

2.1m answers

60 comments

56.8k users

...