IT. Expert System.

All Implemented Interfaces:

InputFilter, KeyListener

Direct Known Subclasses:

DateKeyListener, DateTimeKeyListener, DialerKeyListener, DigitsKeyListener, TimeKeyListener

public abstract class NumberKeyListener
extends BaseKeyListener
implements InputFilter

• 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
  NumberKeyListener()

• 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 abstract char[]	getAcceptedChars() You can say which characters you can accept.
  protected int	lookup(KeyEvent event, Spannable content)
  protected static boolean	ok(char[] accept, char c)
  boolean	onKeyDown(View view, Editable content, int keyCode, KeyEvent event) Handles presses of the meta keys.

  • 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, getInputType, onKeyUp

• Constructor Detail

  • NumberKeyListener

    public NumberKeyListener()

• Method Detail

  • getAcceptedChars

    protected abstract char[] getAcceptedChars()

    You can say which characters you can accept.

  • lookup

    protected int lookup(KeyEvent event,
             Spannable content)

  • 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

  • ok

    protected static boolean ok(char[] accept,
             char c)

  • onKeyDown

    public boolean onKeyDown(View view,
                    Editable content,
                    int keyCode,
                    KeyEvent event)

    Description copied from class: MetaKeyKeyListener
    Handles presses of the meta keys.

    Specified by:

    onKeyDown in interface KeyListener

    Overrides:

    onKeyDown in class BaseKeyListener