Package io.flutter.embedding.android

Class KeyboardMap

java.lang.Object

io.flutter.embedding.android.KeyboardMap

public class KeyboardMap
extends Object

Static information used by KeyEmbedderResponder.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KeyboardMap.KeyPair	A physicalKey-logicalKey pair used to define mappings.
static class	KeyboardMap.PressingGoal	An immutable configuration item that defines how to synchronize pressing modifiers (such as Shift or Ctrl), so that the KeyEmbedderResponder must synthesize events until the combined pressing state of KeyboardMap.PressingGoal.keys matches the true meta state masked by KeyboardMap.PressingGoal.mask.
static class	KeyboardMap.TogglingGoal	A configuration item that defines how to synchronize toggling modifiers (such as CapsLock), so that the KeyEmbedderResponder must synthesize events until the enabling state of the key matches the true meta state masked by KeyboardMap.TogglingGoal.mask.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	kAndroidPlane
static final HashMap<Long,Long>	keyCodeToLogical	Maps from Android key codes KeyEvent.getKeyCode() to Flutter logical keys.
static final long	kUnicodePlane
static final long	kValueMask
static final KeyboardMap.PressingGoal[]	pressingGoals
static final HashMap<Long,Long>	scanCodeToPhysical	Maps from Android scan codes KeyEvent.getScanCode() to Flutter physical keys.

Constructor Summary

Constructors

Constructor	Description
KeyboardMap()

Method Summary

Modifier and Type	Method	Description
static KeyboardMap.TogglingGoal[]	getTogglingGoals()	A list of toggling modifiers that must be synchronized on each key event.

Methods inherited from class java.lang.Object

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

Field Details

scanCodeToPhysical

public static final HashMap<Long,Long> scanCodeToPhysical

Maps from Android scan codes KeyEvent.getScanCode() to Flutter physical keys.

keyCodeToLogical

public static final HashMap<Long,Long> keyCodeToLogical

Maps from Android key codes KeyEvent.getKeyCode() to Flutter logical keys.

pressingGoals

public static final KeyboardMap.PressingGoal[] pressingGoals

kValueMask

public static final long kValueMask

See Also:

• Constant Field Values

kUnicodePlane

public static final long kUnicodePlane

See Also:

• Constant Field Values

kAndroidPlane

public static final long kAndroidPlane

See Also:

• Constant Field Values

Constructor Details

KeyboardMap

public KeyboardMap()

Method Details

getTogglingGoals

public static KeyboardMap.TogglingGoal[] getTogglingGoals()

A list of toggling modifiers that must be synchronized on each key event.

The list is not a static variable but constructed by a function, because KeyboardMap.TogglingGoal is mutable.