关闭AlertDialog框

Question

这可能看起来像是一个简单的问题需要解决，但我是Android新手所以请耐心等待。我有以下代码片段，显示一个警告框：

Builder pwBox = new AlertDialog.Builder(this);
    AlertDialog pwDialog;
    LayoutInflater mInflater = (LayoutInflater) this
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View pwView = mInflater.inflate(R.layout.passworddialog, null);

    Button btnSetPassword = (Button) pwView
            .findViewById(R.id.btnSetPassword);

    pwBox.setView(pwView);
    pwBox.setCancelable(false);
    pwBox.setTitle("New Password");
    pwDialog = pwBox.create();

    btnSetPassword.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {

            //pwDialog.dismiss(); <------ Problem Line
        }
    });

    pwDialog.show();

一切正常。问题是，我无法访问“pwDialog”变量，那么如何关闭对话框呢？

Answer 1

看起来你应该有权访问你的pwDialog变量。您可能需要将其声明为最终版。

final AlertDialog pwDialog = pwBox.create();

Answer 2

你想要的东西：

private static final CommandWrapper DISMISS = new CommandWrapper(Command.NO_OP);

public static AlertDialog createDeletionDialog(final Context context,
    final String message, final String positiveLabel, final Command positiveCommand) {

  AlertDialog.Builder builder = new AlertDialog.Builder(context);
  builder.setCancelable(true);
  builder.setMessage(message);

  builder.setInverseBackgroundForced(true);
  builder.setPositiveButton(positiveLabel, new CommandWrapper(positiveCommand));
  builder.setNeutralButton("Cancel", DISMISS);
  return builder.create();
}