下面列出了android.view.KeyEvent#isShiftPressed ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public boolean onKeyDown(int keyCode, KeyEvent e) {
if (keyCode == KeyEvent.KEYCODE_ENTER && !e.isShiftPressed()) {
lastInputWasTab = false;
if (keyboardListener != null && keyboardListener.onEnterPressed()) {
return true;
}
} else if (keyCode == KeyEvent.KEYCODE_TAB && !e.isAltPressed() && !e.isCtrlPressed()) {
if (keyboardListener != null && keyboardListener.onTabPressed(this.lastInputWasTab)) {
lastInputWasTab = true;
return true;
}
} else {
lastInputWasTab = false;
}
return super.onKeyDown(keyCode, e);
}
private void handleNavigationKey(int keyCode, KeyEvent event) {
if (event.isShiftPressed() && !isSelectText()) {
invalidateCaretRow();
_fieldController.setSelectText(true);
} else if (!event.isShiftPressed() && isSelectText()) {
invalidateSelectionRows();
_fieldController.setSelectText(false);
}
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_RIGHT:
_fieldController.moveCaretRight(false);
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
_fieldController.moveCaretLeft(false);
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
_fieldController.moveCaretDown();
break;
case KeyEvent.KEYCODE_DPAD_UP:
_fieldController.moveCaretUp();
break;
default:
break;
}
}
private void handleNavigationKey(int keyCode, KeyEvent event) {
if (event.isShiftPressed() && !isSelectText()) {
invalidateCaretRow();
_fieldController.setSelectText(true);
} else if (!event.isShiftPressed() && isSelectText()) {
invalidateSelectionRows();
_fieldController.setSelectText(false);
}
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_RIGHT:
_fieldController.moveCaretRight(false);
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
_fieldController.moveCaretLeft(false);
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
_fieldController.moveCaretDown();
break;
case KeyEvent.KEYCODE_DPAD_UP:
_fieldController.moveCaretUp();
break;
default:
break;
}
}
private void handleNavigationKey(int keyCode, KeyEvent event) {
if (event.isShiftPressed() && !isSelectText()) {
invalidateCaretRow();
_fieldController.setSelectText(true);
} else if (!event.isShiftPressed() && isSelectText()) {
invalidateSelectionRows();
_fieldController.setSelectText(false);
}
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_RIGHT:
_fieldController.moveCaretRight(false);
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
_fieldController.moveCaretLeft(false);
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
_fieldController.moveCaretDown();
break;
case KeyEvent.KEYCODE_DPAD_UP:
_fieldController.moveCaretUp();
break;
default:
break;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent e) {
if (keyCode == KeyEvent.KEYCODE_ENTER && !e.isShiftPressed()) {
lastInputWasTab = false;
if (keyboardListener != null && keyboardListener.onEnterPressed()) {
return true;
}
} else if (keyCode == KeyEvent.KEYCODE_TAB && !e.isAltPressed() && !e.isCtrlPressed()) {
if (keyboardListener != null && keyboardListener.onTabPressed(this.lastInputWasTab)) {
lastInputWasTab = true;
return true;
}
} else {
lastInputWasTab = false;
}
return super.onKeyDown(keyCode, e);
}
public static TextView.OnEditorActionListener getListenerRunOnEnter(final Runnable r) {
return new EditText.OnEditorActionListener() {
@Override
public boolean onEditorAction(final TextView v, final int actionId, final KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE ||
actionId == EditorInfo.IME_ACTION_SEARCH ||
actionId == EditorInfo.IME_ACTION_SEND ||
isEnterKeyDown(event)) {
if (event == null || !event.isShiftPressed()) {
r.run(); // The user is done typing.
return true; // Consume.
}
}
return false; // Pass on to other listeners.
}
};
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_TAB && event.getAction() == KeyEvent.ACTION_DOWN) {
if (event.hasNoModifiers()) {
View forward = getNextFocusForward();
if (forward != null) return forward.requestFocus();
} else if (event.isShiftPressed()) {
View backward = getNextFocusBackward();
if (backward != null) return backward.requestFocus();
}
} else if (keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP) {
return handleEnterKeyPress();
}
return false;
}
private Boolean onKeyDownNoActiveThumb(int keyCode, @NonNull KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_TAB:
if (event.hasNoModifiers()) {
return moveFocus(1);
}
if (event.isShiftPressed()) {
return moveFocus(-1);
}
return false;
case KeyEvent.KEYCODE_DPAD_LEFT:
moveFocusInAbsoluteDirection(-1);
return true;
case KeyEvent.KEYCODE_MINUS:
moveFocus(-1);
return true;
case KeyEvent.KEYCODE_DPAD_RIGHT:
moveFocusInAbsoluteDirection(1);
return true;
case KeyEvent.KEYCODE_EQUALS:
// Numpad Plus == Shift + Equals, at least in AVD, so fall through.
case KeyEvent.KEYCODE_PLUS:
moveFocus(1);
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
activeThumbIdx = focusedThumbIdx;
postInvalidate();
return true;
default:
// Nothing to do in this case.
}
return null;
}
/**
* Convert a KeyEvent into a long which can be kept in settings and compared to key presses when
* the service is in use.
*
* @param keyEvent The key event to convert. The (non-extended) keycode must not be a modifier.
* @return An extended key code that includes modifier information
*/
public static long keyEventToExtendedKeyCode(KeyEvent keyEvent) {
long returnValue = keyEvent.getKeyCode();
returnValue |= (keyEvent.isShiftPressed()) ? (((long) KeyEvent.META_SHIFT_ON) << 32) : 0;
returnValue |= (keyEvent.isCtrlPressed()) ? (((long) KeyEvent.META_CTRL_ON) << 32) : 0;
returnValue |= (keyEvent.isAltPressed()) ? (((long) KeyEvent.META_ALT_ON) << 32) : 0;
return returnValue;
}
void onKeyEvent(KeyEvent event) {
int action = event.getAction();
int keyCode = event.getKeyCode();
switch (action) {
case KeyEvent.ACTION_DOWN: {
//输入模式
int unicodeChar = event.getUnicodeChar();
if (unicodeChar != 0) {
input((char) unicodeChar);
event.cancel();
}
if (!event.isCanceled() && !event.isCtrlPressed() && !event.isAltPressed()
&& !event.isShiftPressed()) {
switch (keyCode) {
case KeyEvent.KEYCODE_TAB:
//tab
input(tabText);
event.cancel();
break;
case KeyEvent.KEYCODE_SPACE:
//空格
input(' ');
event.cancel();
break;
case KeyEvent.KEYCODE_ENTER:
//enter
onKeyCodeEnter(event);
event.cancel();
break;
case KeyEvent.KEYCODE_DEL:
//del
onKeyCodeDel(event);
event.cancel();
break;
case KeyEvent.KEYCODE_FORWARD_DEL:
//del
onKeyCodeForwardDel(event);
event.cancel();
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
//left
onKeyCodeDpadLeft(event);
event.cancel();
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
//right
onKeyCodeDpadRight(event);
event.cancel();
break;
case KeyEvent.KEYCODE_DPAD_UP:
//up
onKeyCodeDpadUp(event);
event.cancel();
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
//down
onKeyCodeDpadDown(event);
event.cancel();
break;
case KeyEvent.KEYCODE_VOLUME_DOWN:
case KeyEvent.KEYCODE_PAGE_DOWN:
//page down
onKeyCodePageDown(event);
event.cancel();
break;
case KeyEvent.KEYCODE_VOLUME_UP:
case KeyEvent.KEYCODE_PAGE_UP:
//page up
onKeyCodePageUp(event);
event.cancel();
break;
case KeyEvent.KEYCODE_MOVE_HOME:
onKeyCodeMoveHome(event);
event.cancel();
break;
case KeyEvent.KEYCODE_MOVE_END:
onKeyCodeMoveEnd(event);
event.cancel();
break;
}
}
if (!event.isCanceled()) {
//快捷键模式
if (onShortKey(event.isCtrlPressed(), event.isAltPressed(), event.isShiftPressed(), keyCode)) {
event.cancel();
}
}
break;
}
}
}
public static boolean isSwitchPanel(KeyEvent event){
return (event.isShiftPressed() &&
(event.getKeyCode() == KeyEvent.KEYCODE_ENTER));
}
private static boolean isTab(KeyEvent event){
return (event.isShiftPressed() &&
(event.getKeyCode() == KeyEvent.KEYCODE_SPACE)) ||
(event.getKeyCode() == KeyEvent.KEYCODE_TAB);
}
@Override
public Event decodeHardwareKey(final KeyEvent keyEvent) {
// KeyEvent#getUnicodeChar() does not exactly returns a unicode char, but rather a value
// that includes both the unicode char in the lower 21 bits and flags in the upper bits,
// hence the name "codePointAndFlags". {@see KeyEvent#getUnicodeChar()} for more info.
final int codePointAndFlags = keyEvent.getUnicodeChar();
// The keyCode is the abstraction used by the KeyEvent to represent different keys that
// do not necessarily map to a unicode character. This represents a physical key, like
// the key for 'A' or Space, but also Backspace or Ctrl or Caps Lock.
final int keyCode = keyEvent.getKeyCode();
final boolean isKeyRepeat = (0 != keyEvent.getRepeatCount());
if (KeyEvent.KEYCODE_DEL == keyCode) {
return Event.createHardwareKeypressEvent(Event.NOT_A_CODE_POINT, Constants.CODE_DELETE,
null /* next */, isKeyRepeat);
}
if (keyEvent.isPrintingKey() || KeyEvent.KEYCODE_SPACE == keyCode
|| KeyEvent.KEYCODE_ENTER == keyCode) {
if (0 != (codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT)) {
// A dead key.
return Event.createDeadEvent(
codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT_MASK, keyCode,
null /* next */);
}
if (KeyEvent.KEYCODE_ENTER == keyCode) {
// The Enter key. If the Shift key is not being pressed, this should send a
// CODE_ENTER to trigger the action if any, or a carriage return otherwise. If the
// Shift key is being pressed, this should send a CODE_SHIFT_ENTER and let
// Latin IME decide what to do with it.
if (keyEvent.isShiftPressed()) {
return Event.createHardwareKeypressEvent(Event.NOT_A_CODE_POINT,
Constants.CODE_SHIFT_ENTER, null /* next */, isKeyRepeat);
}
return Event.createHardwareKeypressEvent(Constants.CODE_ENTER, keyCode,
null /* next */, isKeyRepeat);
}
// If not Enter, then this is just a regular keypress event for a normal character
// that can be committed right away, taking into account the current state.
return Event.createHardwareKeypressEvent(codePointAndFlags, keyCode, null /* next */,
isKeyRepeat);
}
return Event.createNotHandledEvent();
}
private static int getMetaState(KeyEvent event) {
return (event.isCtrlPressed() ? CTRL : 0)
| (event.isAltPressed() ? ALT : 0)
| (event.isShiftPressed() ? SHIFT : 0);
}
public static boolean isSwitchPanel(KeyEvent event) {
return (event.isShiftPressed() &&
(event.getKeyCode() == KeyEvent.KEYCODE_ENTER));
}
private static boolean isTab(KeyEvent event) {
return (event.isShiftPressed() &&
(event.getKeyCode() == KeyEvent.KEYCODE_SPACE)) ||
(event.getKeyCode() == KeyEvent.KEYCODE_TAB);
}
@Override
public Event decodeHardwareKey(final KeyEvent keyEvent) {
// KeyEvent#getUnicodeChar() does not exactly returns a unicode char, but rather a value
// that includes both the unicode char in the lower 21 bits and flags in the upper bits,
// hence the name "codePointAndFlags". {@see KeyEvent#getUnicodeChar()} for more info.
final int codePointAndFlags = keyEvent.getUnicodeChar();
// The keyCode is the abstraction used by the KeyEvent to represent different keys that
// do not necessarily map to a unicode character. This represents a physical key, like
// the key for 'A' or Space, but also Backspace or Ctrl or Caps Lock.
final int keyCode = keyEvent.getKeyCode();
final boolean isKeyRepeat = (0 != keyEvent.getRepeatCount());
if (KeyEvent.KEYCODE_DEL == keyCode) {
return Event.createHardwareKeypressEvent(Event.NOT_A_CODE_POINT, Constants.CODE_DELETE,
null /* next */, isKeyRepeat);
}
if (keyEvent.isPrintingKey() || KeyEvent.KEYCODE_SPACE == keyCode
|| KeyEvent.KEYCODE_ENTER == keyCode) {
if (0 != (codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT)) {
// A dead key.
return Event.createDeadEvent(
codePointAndFlags & KeyCharacterMap.COMBINING_ACCENT_MASK, keyCode,
null /* next */);
}
if (KeyEvent.KEYCODE_ENTER == keyCode) {
// The Enter key. If the Shift key is not being pressed, this should send a
// CODE_ENTER to trigger the action if any, or a carriage return otherwise. If the
// Shift key is being pressed, this should send a CODE_SHIFT_ENTER and let
// Latin IME decide what to do with it.
if (keyEvent.isShiftPressed()) {
return Event.createHardwareKeypressEvent(Event.NOT_A_CODE_POINT,
Constants.CODE_SHIFT_ENTER, null /* next */, isKeyRepeat);
}
return Event.createHardwareKeypressEvent(Constants.CODE_ENTER, keyCode,
null /* next */, isKeyRepeat);
}
// If not Enter, then this is just a regular keypress event for a normal character
// that can be committed right away, taking into account the current state.
return Event.createHardwareKeypressEvent(codePointAndFlags, keyCode, null /* next */,
isKeyRepeat);
}
return Event.createNotHandledEvent();
}
private static int getMetaState(KeyEvent event) {
return (event.isCtrlPressed() ? CTRL : 0)
| (event.isAltPressed() ? ALT : 0)
| (event.isShiftPressed() ? SHIFT : 0);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (!mReadonly) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_UP:
return moveCellSelection(0, -1);
case KeyEvent.KEYCODE_DPAD_RIGHT:
return moveCellSelection(1, 0);
case KeyEvent.KEYCODE_DPAD_DOWN:
return moveCellSelection(0, 1);
case KeyEvent.KEYCODE_DPAD_LEFT:
return moveCellSelection(-1, 0);
case KeyEvent.KEYCODE_0:
case KeyEvent.KEYCODE_SPACE:
case KeyEvent.KEYCODE_DEL:
// clear value in selected cell
// TODO: I'm not really sure that this is thread-safe
if (mSelectedCell != null) {
if (event.isShiftPressed() || event.isAltPressed()) {
setCellNote(mSelectedCell, CellNote.EMPTY);
} else {
setCellValue(mSelectedCell, 0);
moveCellSelectionRight();
}
}
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
if (mSelectedCell != null) {
onCellTapped(mSelectedCell);
}
return true;
}
if (keyCode >= KeyEvent.KEYCODE_1 && keyCode <= KeyEvent.KEYCODE_9 && mSelectedCell != null) {
int selNumber = keyCode - KeyEvent.KEYCODE_0;
Cell cell = mSelectedCell;
if (event.isShiftPressed() || event.isAltPressed()) {
// add or remove number in cell's note
setCellNote(cell, cell.getNote().toggleNumber(selNumber));
} else {
// enter number in cell
setCellValue(cell, selNumber);
moveCellSelectionRight();
}
return true;
}
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, @NonNull KeyEvent event) {
if (!isEnabled()) {
return super.onKeyDown(keyCode, event);
}
// If there's only one thumb, we can select it right away.
if (values.size() == 1) {
activeThumbIdx = 0;
}
// If there is no active thumb, key events will be used to pick the thumb to change.
if (activeThumbIdx == -1) {
Boolean handled = onKeyDownNoActiveThumb(keyCode, event);
return handled != null ? handled : super.onKeyDown(keyCode, event);
}
isLongPress |= event.isLongPress();
Float increment = calculateIncrementForKey(keyCode);
if (increment != null) {
if (snapActiveThumbToValue(values.get(activeThumbIdx) + increment)) {
updateHaloHotspot();
postInvalidate();
}
return true;
}
switch (keyCode) {
case KeyEvent.KEYCODE_TAB:
if (event.hasNoModifiers()) {
return moveFocus(1);
}
if (event.isShiftPressed()) {
return moveFocus(-1);
}
return false;
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
activeThumbIdx = -1;
for (TooltipDrawable label : labels) {
ViewUtils.getContentViewOverlay(this).remove(label);
}
postInvalidate();
return true;
default:
// Nothing to do in this case.
}
return super.onKeyDown(keyCode, event);
}