IT. Expert System.

All Implemented Interfaces:

InputFilter, KeyListener

public class DigitsKeyListener
extends NumberKeyListener

• Nested Class Summary

  • Nested classes/interfaces inherited from interface android.text.InputFilter

    InputFilter.AllCaps, InputFilter.LengthFilter

• Field Summary

  • Fields inherited from class android.text.method.MetaKeyKeyListener

    META_ALT_LOCKED, META_ALT_ON, META_CAP_LOCKED, META_SELECTING, META_SHIFT_ON, META_SYM_LOCKED, META_SYM_ON

• Constructor Summary

  Constructors

  Constructor and Description
  DigitsKeyListener() Allocates a DigitsKeyListener that accepts the digits 0 through 9.
  DigitsKeyListener(boolean sign, boolean decimal) Allocates a DigitsKeyListener that accepts the digits 0 through 9, plus the minus sign (only at the beginning) and/or decimal point (only one per field) if specified.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  CharSequence	filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source.
  protected char[]	getAcceptedChars() You can say which characters you can accept.
  int	getInputType() Return the type of text that this key listener is manipulating, as per InputType.
  static DigitsKeyListener	getInstance() Returns a DigitsKeyListener that accepts the digits 0 through 9.
  static DigitsKeyListener	getInstance(boolean sign, boolean decimal) Returns a DigitsKeyListener that accepts the digits 0 through 9, plus the minus sign (only at the beginning) and/or decimal point (only one per field) if specified.
  static DigitsKeyListener	getInstance(String accepted) Returns a DigitsKeyListener that accepts only the characters that appear in the specified String.

  • Methods inherited from class android.text.method.NumberKeyListener

    lookup, ok, onKeyDown

  • Methods inherited from class android.text.method.BaseKeyListener

    backspace, forwardDelete, onKeyOther

  • Methods inherited from class android.text.method.MetaKeyKeyListener

    adjustMetaAfterKeypress, adjustMetaAfterKeypress, clearMetaKeyState, clearMetaKeyState, clearMetaKeyState, getMetaState, getMetaState, getMetaState, getMetaState, handleKeyDown, handleKeyUp, isMetaTracker, isSelectingMetaTracker, onKeyUp, resetLockedMeta, resetLockedMeta, resetMetaState, startSelecting, stopSelecting

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Methods inherited from interface android.text.method.KeyListener

    clearMetaKeyState, onKeyUp

• Constructor Detail

  • DigitsKeyListener

    public DigitsKeyListener()

    Allocates a DigitsKeyListener that accepts the digits 0 through 9.

  • DigitsKeyListener

    public DigitsKeyListener(boolean sign,
                     boolean decimal)

    Allocates a DigitsKeyListener that accepts the digits 0 through 9, plus the minus sign (only at the beginning) and/or decimal point (only one per field) if specified.

• Method Detail

  • getAcceptedChars

    protected char[] getAcceptedChars()

    Description copied from class: NumberKeyListener
    You can say which characters you can accept.

    Specified by:

    getAcceptedChars in class NumberKeyListener

  • getInstance

    public static DigitsKeyListener getInstance()

    Returns a DigitsKeyListener that accepts the digits 0 through 9.

  • getInstance

    public static DigitsKeyListener getInstance(boolean sign,
                                boolean decimal)

    Returns a DigitsKeyListener that accepts the digits 0 through 9, plus the minus sign (only at the beginning) and/or decimal point (only one per field) if specified.

  • getInstance

    public static DigitsKeyListener getInstance(String accepted)

    Returns a DigitsKeyListener that accepts only the characters that appear in the specified String. Note that not all characters may be available on every keyboard.

  • getInputType

    public int getInputType()

    Description copied from interface: KeyListener
    Return the type of text that this key listener is manipulating, as per InputType. This is used to determine the mode of the soft keyboard that is shown for the editor.

    If you return InputType.TYPE_NULL then no soft keyboard will provided. In other words, you must be providing your own key pad for on-screen input and the key listener will be used to handle input from a hard keyboard.

    If you return any other value, a soft input method will be created when the user puts focus in the editor, which will provide a keypad and also consume hard key events. This means that the key listener will generally not be used, instead the soft input method will take care of managing key input as per the content type returned here.

  • filter

    public CharSequence filter(CharSequence source,
                      int start,
                      int end,
                      Spanned dest,
                      int dstart,
                      int dend)

    Description copied from interface: InputFilter
    This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source. Return the CharSequence that you would like to have placed there instead, including an empty string if appropriate, or null to accept the original replacement. Be careful to not to reject 0-length replacements, as this is what happens when you delete text. Also beware that you should not attempt to make any changes to dest from this method; you may only examine it for context. Note: If source is an instance of Spanned or Spannable, the span objects in the source should be copied into the filtered result (i.e. the non-null return value). TextUtils.copySpansFrom(android.text.Spanned, int, int, java.lang.Class, android.text.Spannable, int) can be used for convenience.

    Specified by:

    filter in interface InputFilter

    Overrides:

    filter in class NumberKeyListener