QwertyKeyListener
public
class
QwertyKeyListener
extends BaseKeyListener
This is the standard key listener for alphabetic input on qwerty
keyboards. You should generally not need to instantiate this yourself;
TextKeyListener will do it for you.
As for all implementations of
KeyListener, this class is only concerned
with hardware keyboards. Software input methods have no obligation to trigger
the methods in this class.
Summary
Inherited methods |
|---|
 From
class
android.text.method.BaseKeyListener
boolean
|
backspace(View view, Editable content, int keyCode, KeyEvent event)
Performs the action that happens when you press the KEYCODE_DEL key in
a TextView.
|
boolean
|
forwardDelete(View view, Editable content, int keyCode, KeyEvent event)
Performs the action that happens when you press the KEYCODE_FORWARD_DEL
key in a TextView.
|
boolean
|
onKeyDown(View view, Editable content, int keyCode, KeyEvent event)
Handles presses of the meta keys.
|
boolean
|
onKeyOther(View view, Editable content, KeyEvent event)
Base implementation handles ACTION_MULTIPLE KEYCODE_UNKNOWN by inserting
the event's text into the content.
|
|
From
class
android.text.method.MetaKeyKeyListener
static
void
|
adjustMetaAfterKeypress(Spannable content)
Call this method after you handle a keypress so that the meta
state will be reset to unshifted (if it is not still down)
or primed to be reset to unshifted (once it is released).
|
static
long
|
adjustMetaAfterKeypress(long state)
Call this method after you handle a keypress so that the meta
state will be reset to unshifted (if it is not still down)
or primed to be reset to unshifted (once it is released).
|
static
void
|
clearMetaKeyState(Editable content, int states)
|
long
|
clearMetaKeyState(long state, int which)
Clears the state of the specified meta key if it is locked.
|
void
|
clearMetaKeyState(View view, Editable content, int states)
|
static
final
int
|
getMetaState(CharSequence text)
Gets the state of the meta keys.
|
static
final
int
|
getMetaState(CharSequence text, int meta)
Gets the state of a particular meta key.
|
static
final
int
|
getMetaState(long state)
Gets the state of the meta keys.
|
static
final
int
|
getMetaState(CharSequence text, KeyEvent event)
Gets the state of the meta keys for a specific key event.
|
static
final
int
|
getMetaState(long state, int meta)
Gets the state of a particular meta key.
|
static
final
int
|
getMetaState(CharSequence text, int meta, KeyEvent event)
Gets the state of a particular meta key to use with a particular key event.
|
static
long
|
handleKeyDown(long state, int keyCode, KeyEvent event)
Handles presses of the meta keys.
|
static
long
|
handleKeyUp(long state, int keyCode, KeyEvent event)
Handles release of the meta keys.
|
static
boolean
|
isMetaTracker(CharSequence text, Object what)
Returns true if this object is one that this class would use to
keep track of any meta state in the specified text.
|
static
boolean
|
isSelectingMetaTracker(CharSequence text, Object what)
Returns true if this object is one that this class would use to
keep track of the selecting meta state in the specified text.
|
boolean
|
onKeyDown(View view, Editable content, int keyCode, KeyEvent event)
Handles presses of the meta keys.
|
boolean
|
onKeyUp(View view, Editable content, int keyCode, KeyEvent event)
Handles release of the meta keys.
|
static
long
|
resetLockedMeta(long state)
Call this if you are a method that ignores the locked meta state
(arrow keys, for example) and you handle a key.
|
static
void
|
resetLockedMeta(Spannable content)
Call this if you are a method that ignores the locked meta state
(arrow keys, for example) and you handle a key.
|
static
void
|
resetMetaState(Spannable text)
Resets all meta state to inactive.
|
|
From
class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object.
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long millis, int nanos)
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object, or
some other thread interrupts the current thread, or a certain
amount of real time has elapsed.
|
final
void
|
wait(long millis)
Causes the current thread to wait until either another thread invokes the
notify() method or the
notifyAll() method for this object, or a
specified amount of time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object.
|
|
From
interface
android.text.method.KeyListener
abstract
void
|
clearMetaKeyState(View view, Editable content, int states)
Remove the given shift states from the edited text.
|
abstract
int
|
getInputType()
Return the type of text that this key listener is manipulating,
as per InputType.
|
abstract
boolean
|
onKeyDown(View view, Editable text, int keyCode, KeyEvent event)
If the key listener wants to handle this key, return true,
otherwise return false and the caller (i.e. the widget host)
will handle the key.
|
abstract
boolean
|
onKeyOther(View view, Editable text, KeyEvent event)
If the key listener wants to other kinds of key events, return true,
otherwise return false and the caller (i.e. the widget host)
will handle the key.
|
abstract
boolean
|
onKeyUp(View view, Editable text, int keyCode, KeyEvent event)
If the key listener wants to handle this key release, return true,
otherwise return false and the caller (i.e. the widget host)
will handle the key.
|
|
Public constructors
QwertyKeyListener
QwertyKeyListener (TextKeyListener.Capitalize cap,
boolean autoText)
| Parameters |
|---|
cap |
TextKeyListener.Capitalize
|
autoText |
boolean
|
Public methods
getInputType
int getInputType ()
getInstance
QwertyKeyListener getInstance (boolean autoText,
TextKeyListener.Capitalize cap)
Returns a new or existing instance with the specified capitalization
and correction properties.
| Parameters |
|---|
autoText |
boolean
|
cap |
TextKeyListener.Capitalize
|
getInstanceForFullKeyboard
QwertyKeyListener getInstanceForFullKeyboard ()
Gets an instance of the listener suitable for use with full keyboards.
Disables auto-capitalization, auto-text and long-press initiated on-screen
character pickers.
markAsReplaced
void markAsReplaced (Spannable content,
int start,
int end,
String original)
Marks the specified region of content as having
contained original prior to AutoText replacement.
Call this method when you have done or are about to do an
AutoText-style replacement on a region of text and want to let
the same mechanism (the user pressing DEL immediately after the
change) undo the replacement.
| Parameters |
|---|
content |
Spannable:
the Editable text where the replacement was made |
start |
int:
the start of the replaced region |
end |
int:
the end of the replaced region; the location of the cursor |
original |
String:
the text to be restored if the user presses DEL
|
onKeyDown
boolean onKeyDown (View view,
Editable content,
int keyCode,
KeyEvent event)
Handles presses of the meta keys.
| Parameters |
|---|
view |
View
|
content |
Editable
|
keyCode |
int
|
event |
KeyEvent
|
Developers