@Override
protected void showDialog(Bundle state) {
super.showDialog(state);
// If the dialog isn't an instance of alert dialog this code is useless
if (super.getDialog() instanceof AlertDialog) {
final AlertDialog theDialog = (AlertDialog) super.getDialog();
// get originalBottomPadding to know when adjust the underlying
// layouts bottom padding (ie has room already
// been created for an error message)
int padding = Integer.MIN_VALUE;
try {
padding = ((LinearLayout) getEditText().getParent()).getPaddingBottom();
} catch (Exception e) {
// some exception thrown. Unable to do increase space for error
// message
}
final int originalBottomPadding = padding;
Button b = theDialog.getButton(AlertDialog.BUTTON_POSITIVE);
// attach our validating on click listener
ValidatingOnClickListener l = new ValidatingOnClickListener(originalBottomPadding, theDialog);
b.setOnClickListener(l);
// add an editor action listener for the 'done/next' buttons on a
// soft keyboard
getEditText().setOnEditorActionListener(l);
}
}
@Override
protected void showDialog(Bundle state) {
super.showDialog(state);
EditText et = getEditText();
et.addTextChangedListener(
new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {}
@Override
public void afterTextChanged(Editable s) {
Dialog d = getDialog();
if (d instanceof AlertDialog) {
AlertDialog dialog = (AlertDialog) d;
Button postiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
// Check if the EditText is empty
if (s.length() < mMinLength) {
// Disabled OK Button
postiveButton.setEnabled(false);
} else {
// Re-enabled the button.
postiveButton.setEnabled(true);
}
}
}
});
}
@Override
protected void showDialog(Bundle state) {
super.showDialog(state);
getEditText().removeTextChangedListener(m_watcher);
getEditText().addTextChangedListener(m_watcher);
}