Java Code Examples for android.text.InputFilter#LengthFilter

@Override
@CallSuper
public void setFilters(InputFilter[] filters) {
    if (filters == null) {
        throw new IllegalArgumentException("filters can not be null");
    }
    boolean havingFilter = false;
    for (int i = 0; i < filters.length; i++) {
        if (filters[i] instanceof InputFilter.LengthFilter) {
            mLengthFilterDelegate = new LengthFilterDelegate(filters[i]);
            filters[i] = mLengthFilterDelegate;
        } else if (filters[i] instanceof PlaceholderFilter) {
            havingFilter = true;
        }
    }
    if (!havingFilter) {
        InputFilter[] replaceFilters = new InputFilter[filters.length + 1];
        replaceFilters[0] = new PlaceholderFilter();
        System.arraycopy(filters, 0, replaceFilters, 1, filters.length);
        super.setFilters(replaceFilters);
        return;
    }
    super.setFilters(filters);
}
 

public TextInputProxyEditTextbox(Context context, int allowedLength, boolean limitInput) {
    super(context);
    this.allowedLength = allowedLength;
    this.limitInput = limitInput;

    if (limitInput) {
        InputFilter[] fillters = new InputFilter[2];
        fillters[0] = new InputFilter.LengthFilter(this.allowedLength);
        fillters[1] = new InputFilter() {

            @Override
            public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
                if (source.equals("") || source.toString().matches("^[a-zA-Z0-9_ -^~\'.,;!#&()=`{}]*"))
                    return source;
                return "";
            }
        };
        setFilters(fillters);
    } else
        setFilters(new InputFilter[]{new InputFilter.LengthFilter(this.allowedLength)});
}
 

/**
 * 限制内容长度
 */
public static void lengthFilter(final EditText editText, final int length) {
    InputFilter[] filters = new InputFilter[1];

    filters[0] = new InputFilter.LengthFilter(length) {
        public CharSequence filter(@NonNull CharSequence source, int start, int end,
            @NonNull Spanned dest, int dstart, int dend) {
            if (dest.toString().length() >= length) {
                return "";
            }
            return source;
        }
    };
    // Sets the list of input filters that will be used if the buffer is Editable. Has no effect otherwise.
    editText.setFilters(filters);
}
 

private void updateDropDownTextView() {
    if (dropDown != null) {
        if (currentPasswordType == 0) {
            dropDown.setText(LocaleController.getString("PasscodePIN", R.string.PasscodePIN));
        } else if (currentPasswordType == 1) {
            dropDown.setText(LocaleController.getString("PasscodePassword", R.string.PasscodePassword));
        }
    }
    if (type == 1 && currentPasswordType == 0 || type == 2 && SharedConfig.passcodeType == 0) {
        InputFilter[] filterArray = new InputFilter[1];
        filterArray[0] = new InputFilter.LengthFilter(4);
        passwordEditText.setFilters(filterArray);
        passwordEditText.setInputType(InputType.TYPE_CLASS_PHONE);
        passwordEditText.setKeyListener(DigitsKeyListener.getInstance("1234567890"));
    } else if (type == 1 && currentPasswordType == 1 || type == 2 && SharedConfig.passcodeType == 1) {
        passwordEditText.setFilters(new InputFilter[0]);
        passwordEditText.setKeyListener(null);
        passwordEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
    }
    passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
 

private void updateDropDownTextView() {
    if (dropDown != null) {
        if (currentPasswordType == 0) {
            dropDown.setText(LocaleController.getString("PasscodePIN", R.string.PasscodePIN));
        } else if (currentPasswordType == 1) {
            dropDown.setText(LocaleController.getString("PasscodePassword", R.string.PasscodePassword));
        }
    }
    if (type == 1 && currentPasswordType == 0 || type == 2 && SharedConfig.passcodeType == 0) {
        InputFilter[] filterArray = new InputFilter[1];
        filterArray[0] = new InputFilter.LengthFilter(4);
        passwordEditText.setFilters(filterArray);
        passwordEditText.setInputType(InputType.TYPE_CLASS_PHONE);
        passwordEditText.setKeyListener(DigitsKeyListener.getInstance("1234567890"));
    } else if (type == 1 && currentPasswordType == 1 || type == 2 && SharedConfig.passcodeType == 1) {
        passwordEditText.setFilters(new InputFilter[0]);
        passwordEditText.setKeyListener(null);
        passwordEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
    }
    passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
 

/**
 * 限制中文字符的长度
 */
public static void lengthChineseFilter(final EditText editText, final int length) {
    InputFilter[] filters = new InputFilter[1];

    filters[0] = new InputFilter.LengthFilter(length) {
        public CharSequence filter(@NonNull CharSequence source, int start, int end, @NonNull Spanned dest, int dstart, int dend) {
            // 可以检查中文字符
            boolean isChinese = CharacterCheck.checkNameChese(source.toString());
            if (!isChinese || dest.toString().length() >= length) {
                return "";
            }
            return source;
        }
    };
    // Sets the list of input filters that will be used if the buffer is Editable. Has no effect otherwise.
    editText.setFilters(filters);
}
 

public void setFieldText(CharSequence text) {
    if (messageEditText == null) {
        return;
    }
    messageEditText.setText(text);
    messageEditText.setSelection(messageEditText.getText().length());
    if (delegate != null) {
        delegate.onTextChanged(messageEditText.getText());
    }
    int old = captionMaxLength;
    captionMaxLength = MessagesController.getInstance(UserConfig.selectedAccount).maxCaptionLength;
    if (old != captionMaxLength) {
        InputFilter[] inputFilters = new InputFilter[1];
        inputFilters[0] = new InputFilter.LengthFilter(captionMaxLength);
        messageEditText.setFilters(inputFilters);
    }
}
 

private void init(Context context, AttributeSet attrs) {

        if (isInEditMode())
            return;

        if (attrs != null) {
            TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.RichEditText);
            int textLength = array.getInteger(R.styleable.RichEditText_richMaxLength, 9999);
            float iconSize = (int) array.getDimension(R.styleable.RichEditText_richIconSize, 0);
            String colorAtUser = array.getString(R.styleable.RichEditText_richEditColorAtUser);
            String colorTopic = array.getString(R.styleable.RichEditText_richEditColorTopic);
            richMaxLength = textLength;
            InputFilter[] filters = {new InputFilter.LengthFilter(richMaxLength)};
            setFilters(filters);
            if (iconSize == 0) {
                richIconSize = dip2px(context, 20);
            }
            if (!TextUtils.isEmpty(colorAtUser)) {
                this.colorAtUser = colorAtUser;
            }
            if (!TextUtils.isEmpty(colorTopic)) {
                this.colorTopic = colorTopic;
            }
            array.recycle();
        }

        resolveAtPersonEditText();
    }
 

private MascaraNumericaTextWatcher(Builder builder) {
    this.mascara = builder.mascara.toCharArray();
    this.validador = builder.validador;

    final int length = mascara.length;
    this.filtroNumerico = new InputFilter[]{new InputFilter.LengthFilter(length)};

    setEventoDeValidacao(builder.eventoDeValidacao);
}
 

/** LengthFilter and AllCaps do not implement isEqual. Correct for the deficiency. */
private static boolean equalInputFilters(List<InputFilter> a, List<InputFilter> b) {
  if (a == null && b == null) {
    return true;
  }
  if (a == null || b == null) {
    return false;
  }
  if (a.size() != b.size()) {
    return false;
  }
  for (int i = 0; i < a.size(); i++) {
    InputFilter fa = a.get(i);
    InputFilter fb = b.get(i);
    if (fa instanceof InputFilter.AllCaps && fb instanceof InputFilter.AllCaps) {
      continue; // equal, AllCaps has no configuration
    }
    if (SDK_INT >= LOLLIPOP) { // getMax added in lollipop
      if (fa instanceof InputFilter.LengthFilter && fb instanceof InputFilter.LengthFilter) {
        if (((InputFilter.LengthFilter) fa).getMax()
            != ((InputFilter.LengthFilter) fb).getMax()) {
          return false;
        }
        continue; // equal, same max
      }
    }
    // Best we can do in this case is call equals().
    if (!equals(fa, fb)) {
      return false;
    }
  }
  return true;
}
 

private void updateDropDownTextView()
{
    if (dropDown != null)
    {
        if (currentPasswordType == 0)
        {
            dropDown.setText(LocaleController.getString("PasscodePIN", R.string.PasscodePIN));
        }
        else if (currentPasswordType == 1)
        {
            dropDown.setText(LocaleController.getString("PasscodePassword", R.string.PasscodePassword));
        }
    }
    if (type == 1 && currentPasswordType == 0 || type == 2 && SharedConfig.passcodeType == 0)
    {
        InputFilter[] filterArray = new InputFilter[1];
        filterArray[0] = new InputFilter.LengthFilter(4);
        passwordEditText.setFilters(filterArray);
        passwordEditText.setInputType(InputType.TYPE_CLASS_PHONE);
        passwordEditText.setKeyListener(DigitsKeyListener.getInstance("1234567890"));
    }
    else if (type == 1 && currentPasswordType == 1 || type == 2 && SharedConfig.passcodeType == 1)
    {
        passwordEditText.setFilters(new InputFilter[0]);
        passwordEditText.setKeyListener(null);
        passwordEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
    }
    passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
 

public void setMaxCVV(int maxCVVLength) {
    if (mCardCVVView != null && (mCardCVVView.getText().toString().length() > maxCVVLength)) {
        mCardCVVView.setText(mCardCVVView.getText().toString().substring(0, maxCVVLength));
    }

    InputFilter[] FilterArray = new InputFilter[1];
    FilterArray[0] = new InputFilter.LengthFilter(maxCVVLength);
    mCardCVVView.setFilters(FilterArray);
    mMaxCVV = maxCVVLength;
    String hintCVV = "";
    for (int i = 0; i < maxCVVLength; i++) {
        hintCVV += "X";
    }
    mCardCVVView.setHint(hintCVV);
}
 

@Override
public void setParams(Bundle params, boolean restore) {
    if (params == null) {
        return;
    }
    codeField.setText("");
    waitingForEvent = true;
    if (currentType == 2) {
        AndroidUtilities.setWaitingForSms(true);
        NotificationCenter.getGlobalInstance().addObserver(this, NotificationCenter.didReceiveSmsCode);
    } else if (currentType == 3) {
        AndroidUtilities.setWaitingForCall(true);
        NotificationCenter.getGlobalInstance().addObserver(this, NotificationCenter.didReceiveCall);
    }

    currentParams = params;
    phone = params.getString("phone");
    phoneHash = params.getString("phoneHash");
    timeout = time = params.getInt("timeout");
    openTime = (int) (System.currentTimeMillis() / 1000);
    nextType = params.getInt("nextType");
    pattern = params.getString("pattern");
    length = params.getInt("length");

    if (length != 0) {
        InputFilter[] inputFilters = new InputFilter[1];
        inputFilters[0] = new InputFilter.LengthFilter(length);
        codeField.setFilters(inputFilters);
    } else {
        codeField.setFilters(new InputFilter[0]);
    }
    if (progressView != null) {
        progressView.setVisibility(nextType != 0 ? VISIBLE : GONE);
    }

    if (phone == null) {
        return;
    }

    String number = PhoneFormat.getInstance().format(phone);
    CharSequence str;
    /*if (currentType == 1) {
        str = AndroidUtilities.replaceTags(LocaleController.getString("SentAppCode", R.string.SentAppCode));
    } else if (currentType == 2) {*/
    str = AndroidUtilities.replaceTags(LocaleController.formatString("CancelAccountResetInfo", R.string.CancelAccountResetInfo, PhoneFormat.getInstance().format("+" + number)));
    /*} else if (currentType == 3) {
        str = AndroidUtilities.replaceTags(LocaleController.formatString("SentCallCode", R.string.SentCallCode, number));
    } else if (currentType == 4) {
        str = AndroidUtilities.replaceTags(LocaleController.formatString("SentCallOnly", R.string.SentCallOnly, number));
    }*/
    confirmTextView.setText(str);

    if (currentType != 3) {
        AndroidUtilities.showKeyboard(codeField);
        codeField.requestFocus();
    } else {
        AndroidUtilities.hideKeyboard(codeField);
    }

    destroyTimer();
    destroyCodeTimer();

    lastCurrentTime = System.currentTimeMillis();
    if (currentType == 1) {
        problemText.setVisibility(VISIBLE);
        timeText.setVisibility(GONE);
    } else if (currentType == 3 && (nextType == 4 || nextType == 2)) {
        problemText.setVisibility(GONE);
        timeText.setVisibility(VISIBLE);
        if (nextType == 4) {
            timeText.setText(LocaleController.formatString("CallText", R.string.CallText, 1, 0));
        } else if (nextType == 2) {
            timeText.setText(LocaleController.formatString("SmsText", R.string.SmsText, 1, 0));
        }
        createTimer();
    } else if (currentType == 2 && (nextType == 4 || nextType == 3)) {
        timeText.setVisibility(VISIBLE);
        timeText.setText(LocaleController.formatString("CallText", R.string.CallText, 2, 0));
        problemText.setVisibility(time < 1000 ? VISIBLE : GONE);
        createTimer();
    } else {
        timeText.setVisibility(GONE);
        problemText.setVisibility(GONE);
        createCodeTimer();
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.passlock_passcode_keyboard);
    
    topMessage = (TextView) findViewById(R.id.top_message);
    
    Bundle extras = getIntent().getExtras();
    if (extras != null) {
        String message = extras.getString("message");
        if (message != null) {
            topMessage.setText(message);
        }
    }
    
    filters = new InputFilter[2];
    filters[0]= new InputFilter.LengthFilter(1);
    filters[1] = onlyNumber;
    
    //Setup the pin fields row
    pinCodeField1 = (EditText) findViewById(R.id.pincode_1);
    setupPinItem(pinCodeField1);
    
    pinCodeField2 = (EditText) findViewById(R.id.pincode_2);
    setupPinItem(pinCodeField2);
    
    pinCodeField3 = (EditText) findViewById(R.id.pincode_3);
    setupPinItem(pinCodeField3);
    
    pinCodeField4 = (EditText) findViewById(R.id.pincode_4);
    setupPinItem(pinCodeField4);
    
    //setup the keyboard
    ((Button) findViewById(R.id.button0)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button1)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button2)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button3)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button4)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button5)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button6)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button7)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button8)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button9)).setOnClickListener(defaultButtonListener);
    ((Button) findViewById(R.id.button_erase)).setOnClickListener(
            new OnClickListener() {
                @Override
                public void onClick(View arg0) {
                    if( pinCodeField1.isFocused() ) {

                    }
                    else if( pinCodeField2.isFocused() ) {
                        pinCodeField1.requestFocus();
                        pinCodeField1.setText("");
                    }
                    else if( pinCodeField3.isFocused() ) {
                        pinCodeField2.requestFocus();
                        pinCodeField2.setText("");
                    }
                    else if( pinCodeField4.isFocused() ) {
                        pinCodeField3.requestFocus();
                        pinCodeField3.setText("");
                    }
                }
            });
}
 

public void init() {
    LayoutInflater inflater = LayoutInflater.from(context);
    View view = inflater.inflate(R.layout.layout_custom_dialog, null);
    setContentView(view);
    txtTitle = (TextView) view.findViewById(R.id.dialog_input_title);
    editMessage = (EditText) view.findViewById(R.id.dialog_input_dialog_edit);
    btnPostive = (TextView) view.findViewById(R.id.dialog_input_dialog_postive);
    btnNegative = (TextView) view.findViewById(R.id.dialog_input_dialog_negative);
    cacheCheck = (CheckBox) view.findViewById(R.id.dialog_input_check);

    cacheCheck.setChecked(cache);

    if (postiveButtonVisiable) {
        btnPostive.setVisibility(View.VISIBLE);
    } else {
        btnPostive.setVisibility(View.GONE);
    }
    if (negativeButtonVisiable) {
        btnNegative.setVisibility(View.VISIBLE);
    } else {
        btnNegative.setVisibility(View.GONE);
    }

    if (TextUtils.isEmpty(title)) {
        txtTitle.setVisibility(View.GONE);
    } else {
        txtTitle.setVisibility(View.VISIBLE);
        txtTitle.setText(title);
    }
    editMessage.setText(input);
    if (input != null) {
        editMessage.setSelection(input.length());
    }
    if (!TextUtils.isEmpty(hintInput)) {
        editMessage.setHint(hintInput);
    }
    btnPostive.setText(postiveText);
    btnNegative.setText(negativeText);
    btnPostive.setOnClickListener(new OnButtonClickListener());
    btnNegative.setOnClickListener(new OnButtonClickListener());
    InputFilter[] filters = {new InputFilter.LengthFilter(maxLength)};
    editMessage.setFilters(filters);
    Window dialogWindow = getWindow();
    WindowManager.LayoutParams lp = dialogWindow.getAttributes();
    DisplayMetrics d = context.getResources().getDisplayMetrics(); // 获取屏幕宽、高用
    lp.width = (int) (d.widthPixels * 0.8); // 宽度设置为屏幕的0.8
    dialogWindow.setAttributes(lp);
}
 

private void setMaxLength(int maxLength) {
    InputFilter[] fArray = new InputFilter[1];
    fArray[0] = new InputFilter.LengthFilter(maxLength);
    mEditText.setFilters(fArray);
}
 

private void setInputMaxLength(final MPEditText text, final int maxLength) {
    final InputFilter[] fArray = new InputFilter[1];
    fArray[0] = new InputFilter.LengthFilter(maxLength);
    text.setFilters(fArray);
}
 

@Override
public void setParams(Bundle params, boolean restore) {
    if (params == null) {
        return;
    }
    codeField.setText("");
    waitingForEvent = true;
    if (currentType == 2) {
        AndroidUtilities.setWaitingForSms(true);
        NotificationCenter.getGlobalInstance().addObserver(this, NotificationCenter.didReceiveSmsCode);
    } else if (currentType == 3) {
        AndroidUtilities.setWaitingForCall(true);
        NotificationCenter.getGlobalInstance().addObserver(this, NotificationCenter.didReceiveCall);
    }

    currentParams = params;
    phone = params.getString("phone");
    phoneHash = params.getString("phoneHash");
    timeout = time = params.getInt("timeout");
    openTime = (int) (System.currentTimeMillis() / 1000);
    nextType = params.getInt("nextType");
    pattern = params.getString("pattern");
    length = params.getInt("length");

    if (length != 0) {
        InputFilter[] inputFilters = new InputFilter[1];
        inputFilters[0] = new InputFilter.LengthFilter(length);
        codeField.setFilters(inputFilters);
    } else {
        codeField.setFilters(new InputFilter[0]);
    }
    if (progressView != null) {
        progressView.setVisibility(nextType != 0 ? VISIBLE : GONE);
    }

    if (phone == null) {
        return;
    }

    String number = PhoneFormat.getInstance().format(phone);
    CharSequence str;
    /*if (currentType == 1) {
        str = AndroidUtilities.replaceTags(LocaleController.getString("SentAppCode", R.string.SentAppCode));
    } else if (currentType == 2) {*/
    str = AndroidUtilities.replaceTags(LocaleController.formatString("CancelAccountResetInfo", R.string.CancelAccountResetInfo, PhoneFormat.getInstance().format("+" + number)));
    /*} else if (currentType == 3) {
        str = AndroidUtilities.replaceTags(LocaleController.formatString("SentCallCode", R.string.SentCallCode, number));
    } else if (currentType == 4) {
        str = AndroidUtilities.replaceTags(LocaleController.formatString("SentCallOnly", R.string.SentCallOnly, number));
    }*/
    confirmTextView.setText(str);

    if (currentType != 3) {
        AndroidUtilities.showKeyboard(codeField);
        codeField.requestFocus();
    } else {
        AndroidUtilities.hideKeyboard(codeField);
    }

    destroyTimer();
    destroyCodeTimer();

    lastCurrentTime = System.currentTimeMillis();
    if (currentType == 1) {
        problemText.setVisibility(VISIBLE);
        timeText.setVisibility(GONE);
    } else if (currentType == 3 && (nextType == 4 || nextType == 2)) {
        problemText.setVisibility(GONE);
        timeText.setVisibility(VISIBLE);
        if (nextType == 4) {
            timeText.setText(LocaleController.formatString("CallText", R.string.CallText, 1, 0));
        } else if (nextType == 2) {
            timeText.setText(LocaleController.formatString("SmsText", R.string.SmsText, 1, 0));
        }
        createTimer();
    } else if (currentType == 2 && (nextType == 4 || nextType == 3)) {
        timeText.setVisibility(VISIBLE);
        timeText.setText(LocaleController.formatString("CallText", R.string.CallText, 2, 0));
        problemText.setVisibility(time < 1000 ? VISIBLE : GONE);
        createTimer();
    } else {
        timeText.setVisibility(GONE);
        problemText.setVisibility(GONE);
        createCodeTimer();
    }
}
 

@Override
public View getBodyView(int viewType, LayoutInflater inflater, ViewGroup parent) {
    View body = inflater.inflate(R.layout.rsb_item_edit_text_compact, parent, false);

    editText = (EditText) body.findViewById(R.id.value);
    if (step.getPlaceholder() != null) {
        editText.setHint(step.getPlaceholder());
    } else {
        editText.setHint(R.string.rsb_hint_step_body_text);
    }

    TextView title = (TextView) body.findViewById(R.id.label);

    if (viewType == VIEW_TYPE_COMPACT) {
        title.setText(step.getTitle());
    } else {
        title.setVisibility(View.GONE);
    }

    // Restore previous result
    String stringResult = result.getResult();
    if (!TextUtils.isEmpty(stringResult)) {
        editText.setText(stringResult);
    }

    // Set result on text change
    RxTextView.textChanges(editText).subscribe(text -> {
        result.setResult(text.toString());
    });

    // Format EditText from TextAnswerFormat
    TextAnswerFormat format = (TextAnswerFormat) step.getAnswerFormat();

    editText.setSingleLine(!format.isMultipleLines());

    if (format.getMaximumLength() > TextAnswerFormat.UNLIMITED_LENGTH) {
        InputFilter.LengthFilter maxLengthFilter = new InputFilter.LengthFilter(format.getMaximumLength());
        InputFilter[] filters = ViewUtils.addFilter(editText.getFilters(), maxLengthFilter);
        editText.setFilters(filters);
    }

    Resources res = parent.getResources();
    LinearLayout.MarginLayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.WRAP_CONTENT);
    layoutParams.leftMargin = res.getDimensionPixelSize(R.dimen.rsb_margin_left);
    layoutParams.rightMargin = res.getDimensionPixelSize(R.dimen.rsb_margin_right);
    body.setLayoutParams(layoutParams);

    return body;
}
 

public DecimalWidget(Context context, FormEntryPrompt prompt, boolean secret, boolean compact) {
    super(context, prompt, secret, compact);

    // formatting
    mAnswer.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mAnswerFontSize);
    mAnswer.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI | EditorInfo.IME_ACTION_NEXT);

    // needed to make long readonly text scroll
    mAnswer.setHorizontallyScrolling(isInCompactMode());

    // only numbers are allowed
    mAnswer.setKeyListener(new DigitsKeyListener(true, true));

    // only 15 characters allowed
    InputFilter[] fa = new InputFilter[1];
    fa[0] = new InputFilter.LengthFilter(15);
    mAnswer.setFilters(fa);

    Double d = null;
    if (getCurrentAnswer() != null) {
        d = (Double)getCurrentAnswer().getValue();
    }

    NumberFormat nf = NumberFormat.getNumberInstance(Locale.ENGLISH);
    nf.setMaximumFractionDigits(15);
    nf.setMaximumIntegerDigits(15);
    nf.setGroupingUsed(false);
    if (d != null) {
        Double dAnswer = (Double)getCurrentAnswer().getValue();
        String dString = nf.format(dAnswer);
        dString = dString.replace(',', '.');
        mAnswer.setText(dString);
    }

    // disable if read only
    if (prompt.isReadOnly()) {
        setBackgroundDrawable(null);
        setFocusable(false);
        setClickable(false);
    }
}