要求：主屏在左，副屏在右。這種排列情況下鼠標僅可通過主屏的最右側移入副屏的最左側，或從副屏的最左側移入主屏最右側。
1.RK默認設計
1.1 RK的代碼設計是當sys.mouse.presentation=1時，鼠標在屏幕邊緣的時候就會移入另一個屏幕
- frameworks/native/services/inputflinger/reader/mapper/CursorInputMapper.cpp
void CursorInputMapper::sync(nsecs_t when) {...if (mSource == AINPUT_SOURCE_MOUSE) {if (moved || scrolled || buttonsChanged) {mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);if (moved) {mPointerController->move(deltaX, deltaY);}if (buttonsChanged) {mPointerController->setButtonState(currentButtonState);}mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);}mPointerController->getPosition(&xCursorPosition, &yCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, xCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, yCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, deltaX);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, deltaY);char mMousePresentation[PROPERTY_VALUE_MAX] = {0};property_get("sys.mouse.presentation", mMousePresentation, "0");if (strcmp(mMousePresentation, "1") == 0) {displayId = mDisplayId;float minX, minY, maxX, maxY;if (mPointerController->getBounds(&minX, &minY, &maxX, &maxY)) {// 如果鼠標位置在屏幕四周邊緣，進入另外的屏幕，重新賦值displayIdif (xCursorPosition==minX||xCursorPosition==maxX||yCursorPosition==minY||yCursorPosition==maxY{displayId=getPolicy()->notifyDisplayIdChanged();mDisplayId=displayId;}}}else{displayId = mPointerController->getDisplayId();}} else {pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, deltaX);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, deltaY);displayId = ADISPLAY_ID_NONE;}
}
1.2 鼠標進入不同屏，默認居中顯示
- frameworks/base/libs/input/PointerController.cpp
void PointerController::setDisplayViewport(const DisplayViewport& viewport) {...// Reset cursor position to center if size or display changed.if (oldViewport.displayId != viewport.displayId|| oldDisplayWidth != newDisplayWidth|| oldDisplayHeight != newDisplayHeight) {float minX, minY, maxX, maxY;if (getBoundsLocked(&minX, &minY, &maxX, &maxY)) {mLocked.pointerX = (minX + maxX) * 0.5f;mLocked.pointerY = (minY + maxY) * 0.5f;// Reload icon resources for density may be changed.loadResourcesLocked();} else {mLocked.pointerX = 0;mLocked.pointerY = 0;}fadeOutAndReleaseAllSpotsLocked();} else if (oldViewport.orientation != viewport.orientation) {
}
2.修改鼠標進入方式
hdmi接入狀態
- /frameworks/base/services/core/java/com/android/server/WiredAccessoryManager.java
public Pair<Integer, Integer> parseState(ExtconInfo extconInfo, String status) {...if (status.contains("HDMI")){SystemProperties.set("hdmi.plugged", status.contains("HDMI=1") ? "1":"0");}
}
2.1 主屏在左，副屏在右邊模式下修改鼠標進入方式
- frameworks/native/services/inputflinger/reader/mapper/CursorInputMapper.cpp
void CursorInputMapper::sync(nsecs_t when) {...if (mSource == AINPUT_SOURCE_MOUSE) {if (moved || scrolled || buttonsChanged) {mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);if (moved) {mPointerController->move(deltaX, deltaY);}if (buttonsChanged) {mPointerController->setButtonState(currentButtonState);}mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);}mPointerController->getPosition(&xCursorPosition, &yCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, xCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, yCursorPosition);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, deltaX);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, deltaY);char mMousePresentation[PROPERTY_VALUE_MAX] = {0};property_get("sys.mouse.presentation", mMousePresentation, "0");if (strcmp(mMousePresentation, "1") == 0) {//displayId = mDisplayId;char mHdmiPlugged[PROPERTY_VALUE_MAX] = {0};property_get("hdmi.plugged", mHdmiPlugged, "0");if (strcmp(mHdmiPlugged, "1") == 0){displayId = mDisplayId;} else {// 鼠標在副屏時，拔掉hdmi導致鼠標沒有功能，強制id為主屏0displayId = 0;} float minX, minY, maxX, maxY;if (mPointerController->getBounds(&minX, &minY, &maxX, &maxY)){// 鼠標在主屏屏幕右邊緣位置，重新賦值displayId，位置改變if (displayId == 0 && xCursorPosition==maxX) {displayId=getPolicy()->notifyDisplayIdChanged();mDisplayId=displayId;// 設置鼠標在副屏左側顯示if ((strcmp(mHdmiPlugged, "1") == 0)){mPointerController->setPosition(minX+10, yCursorPosition);}}// 鼠標在副屏屏幕左邊緣位置，重新賦值displayId，位置改變（（主屏id默認為0，副屏id切換后遞增））if (displayId != 0 && xCursorPosition==minX){displayId=getPolicy()->notifyDisplayIdChanged();mDisplayId=displayId;// 設置鼠標在主屏右側顯示mPointerController->setPosition(maxX-10, yCursorPosition);}} }else{displayId = mPointerController->getDisplayId();}} else {pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, deltaX);pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, deltaY);displayId = ADISPLAY_ID_NONE;}
}
