I am using a simple text field alert dialog with a positive and a cancel button. I want to validate my alert dialog and prevent the done button from closing the AlertDialog if the input is invalid.
Is there any way short of creating a custom dialog to prevent the PositiveButton onClick() handler from closing the dialog if the validation fails?
class CreateNewCategoryAlertDialog {
final EditText editText;
final AlertDialog alertDialog;
class PositiveButtonClickListener implements OnClickListener {
@Override
public void onClick(DialogInterface dialog, int which) {
String name = editText.getText().toString();
if(name.equals("")) {
editText.requestFocus();
editText.setError("Please enter a name");
// Some code to stop AlertDialog from closing goes here...
} else {
doSomethingUsefulWithName();
}
}
}
AlertDialog buildAlertDialog(Context context) {
return new AlertDialog.Builder(context)
.setTitle(context.getString(R.string.enter_name))
.setMessage(context.getString(R.string.enter_name_msg))
.setView(editText)
.setPositiveButton(context.getString(R.string.done), new PositiveButtonClickListener())
.setNegativeButton(context.getString(R.string.cancel), null).create();
}
}
Here's how I did it. Technically, it doesn't technically keep the dialog open, it closes it momentarily and re-opens it, but the net result is the same.