android.text.method
Class BaseKeyListener

java.lang.Object
  android.text.method.MetaKeyKeyListener
      android.text.method.BaseKeyListener

All Implemented Interfaces:

KeyListener

Direct Known Subclasses:

MultiTapKeyListener, NumberKeyListener, QwertyKeyListener, TextKeyListener

public abstract class BaseKeyListener
extends MetaKeyKeyListener
implements KeyListener

Field Summary

(package private) static Object

OLD_SEL_START

Fields inherited from class android.text.method.MetaKeyKeyListener

META_ALT_LOCKED, META_ALT_ON, META_CAP_LOCKED, META_SHIFT_ON, META_SYM_LOCKED, META_SYM_ON

Constructor Summary

BaseKeyListener()

Method Summary

boolean	backspace(View view, Editable content, int keyCode, KeyEvent event) Performs the action that happens when you press the DEL key in a TextView.
boolean	onKeyDown(View view, Editable content, int keyCode, KeyEvent event) Handles presses of the meta keys.

Methods inherited from class android.text.method.MetaKeyKeyListener

adjustMetaAfterKeypress, getMetaState, getMetaState, isMetaTracker, onKeyUp, resetLockedMeta, resetMetaState

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

onKeyUp

Field Detail

OLD_SEL_START

static final Object OLD_SEL_START

Constructor Detail

BaseKeyListener

public BaseKeyListener()

Method Detail

backspace

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

Performs the action that happens when you press the DEL key in a TextView. If there is a selection, deletes the selection; otherwise, DEL alone deletes the character before the cursor, if any; ALT+DEL deletes everything on the line the cursor is on.

Returns:

true if anything was deleted; false otherwise.

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 MetaKeyKeyListener