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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/login_username_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

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@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    super.onCreateDialog(savedInstanceState);
    Log.i(TAG, "onCreateDialog");
    LayoutInflater lf = LayoutInflater.from(getActivity());
    
    /** 
     *  Inflate our custom view for this dialog, it contains
     *  two TextViews and two EditTexts, one set for the username
     *  and a second set for the password

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<EditText
    android:id="@+id/login_password"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:imeOptions="actionDone"
    android:inputType="textPassword" />

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public class LoginDialogFragment extends DialogFragment implements
        OnEditorActionListener, TextWatcher, OnShowListener {

    private TextView            password;
    private TextView            username;

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password.setOnEditorActionListener(this);

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/**
 * Perform the login if the user presses the Done key from the
 * password field
 */
@Override
public boolean onEditorAction(TextView v, int actionId,
        KeyEvent event) {
    if (actionId == EditorInfo.IME_ACTION_DONE) {
        doLogin();
        return true;

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public class LoginDialogFragment extends DialogFragment implements

         OnEditorActionListener, TextWatcher, OnShowListener {

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/**
 * We have to override setOnShowListener here (min API level 8) in
 * order to validate the inputs before closing the dialog. Just
 * overriding setPositiveButton closes the automatically when the
 * button is pressed
 * 
 * @return The onShowListener for the AlertDialog
 */
@Override
public void onShow(DialogInterface dialog) {

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/**
 * These TextWatchers are used to clear the error icons
 * automatically once the user has remedied an error
 */
username.addTextChangedListener(this);
password.addTextChangedListener(this);

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@Override
public void beforeTextChanged(CharSequence s, int start, int count,
        int after) {}

@Override
public void onTextChanged(CharSequence s, int start, int before,
        int count) {}

/**
 * If the user receives an error message due to a blank field, this