Java Code Examples for android.view.MotionEvent#getHistorySize()
The following examples show how to use
android.view.MotionEvent#getHistorySize() .
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Example 1
Source File: HorizontalOverScrollBounceEffectDecorator.java From overscroll-decor with BSD 2-Clause "Simplified" License | 6 votes |
public boolean init(View view, MotionEvent event) { // We must have history available to calc the dx. Normally it's there - if it isn't temporarily, // we declare the event 'invalid' and expect it in consequent events. if (event.getHistorySize() == 0) { return false; } // Allow for counter-orientation-direction operations (e.g. item swiping) to run fluently. final float dy = event.getY(0) - event.getHistoricalY(0, 0); final float dx = event.getX(0) - event.getHistoricalX(0, 0); if (Math.abs(dx) < Math.abs(dy)) { return false; } mAbsOffset = view.getTranslationX(); mDeltaOffset = dx; mDir = mDeltaOffset > 0; return true; }
Example 2
Source File: SwipeListView.java From browser with GNU General Public License v2.0 | 6 votes |
/** * adjust header padding according to motion event * * @param ev */ private void adjustHeaderPadding(MotionEvent ev) { // adjust header padding according to motion event history int pointerCount = ev.getHistorySize(); if (isVerticalFadingEdgeEnabled()) { setVerticalScrollBarEnabled(false); } for (int i = 0; i < pointerCount; i++) { if (currentHeaderStatus == HEADER_STATUS_DROP_DOWN_TO_LOAD || currentHeaderStatus == HEADER_STATUS_RELEASE_TO_LOAD) { headerLayout .setPadding( headerLayout.getPaddingLeft(), (int) (((ev.getHistoricalY(i) - actionDownPointY) - headerOriginalHeight) / headerPaddingTopRate), headerLayout.getPaddingRight(), headerLayout.getPaddingBottom()); } } }
Example 3
Source File: VerticalOverScrollBounceEffectDecorator.java From overscroll-decor with BSD 2-Clause "Simplified" License | 6 votes |
public boolean init(View view, MotionEvent event) { // We must have history available to calc the dx. Normally it's there - if it isn't temporarily, // we declare the event 'invalid' and expect it in consequent events. if (event.getHistorySize() == 0) { return false; } // Allow for counter-orientation-direction operations (e.g. item swiping) to run fluently. final float dy = event.getY(0) - event.getHistoricalY(0, 0); final float dx = event.getX(0) - event.getHistoricalX(0, 0); if (Math.abs(dx) > Math.abs(dy)) { return false; } mAbsOffset = view.getTranslationY(); mDeltaOffset = dy; mDir = mDeltaOffset > 0; return true; }
Example 4
Source File: TouchpadView.java From gdk-apidemo-sample with Apache License 2.0 | 6 votes |
/** * Helper method to debug the motion events. */ private static String printToString(MotionEvent ev) { int historySize = ev.getHistorySize(); int pointerCount = ev.getPointerCount(); StringBuilder resultString = new StringBuilder(); for (int h = 0; h < historySize; h++) { resultString.append(String.format("At time %d:", ev.getHistoricalEventTime(h))); for (int p = 0; p < pointerCount; p++) { resultString.append(String.format(" pointer %d %s: (%f, %f)", ev.getPointerId(p), MotionEvent.actionToString(ev.getActionMasked()), ev.getHistoricalX(p, h), ev.getHistoricalY(p, h))); } } resultString.append(String.format("At time %d:", ev.getEventTime())); for (int p = 0; p < pointerCount; p++) { resultString.append(String.format(" pointer %d %s: (%f, %f)", ev.getPointerId(p), MotionEvent.actionToString(ev.getActionMasked()), ev.getX(p), ev.getY(p))); } return resultString.toString(); }
Example 5
Source File: MultiTouchListener.java From PinchToZoom with MIT License | 6 votes |
/** * <p>Calculates the pinch velocity for the last <code>timeWindow</code> milliseconds.</p> * @param event * @param pointerA id of pointer A * @param pointerB id of pointer B * @param timeWindow * @return spacing between both pointers */ public static final float pinchVelocity(MotionEvent event, int pointerA, int pointerB, long timeWindow) { int indexA = event.findPointerIndex(pointerA); int indexB = event.findPointerIndex(pointerB); long eventTime = event.getEventTime(); long timeDelta = 0; float previousSpacing = spacingByIndex(event, indexA, indexB); float scale = 1; for(int i = 0, n = event.getHistorySize(); i < n && timeDelta < timeWindow; i++) { int index = (n - 1) - i; float x = event.getHistoricalX(indexA, index) - event.getHistoricalX(indexB, index); float y = event.getHistoricalY(indexA, index) - event.getHistoricalY(indexB, index); float spacing = (float) Math.sqrt(x * x + y * y); scale *= previousSpacing / spacing; previousSpacing = spacing; timeDelta = eventTime - event.getHistoricalEventTime(index); } return (float) Math.pow(Math.pow(scale, 1d / timeWindow), 1000d); }
Example 6
Source File: KeyboardView.java From libcommon with Apache License 2.0 | 5 votes |
public void addMovement(MotionEvent ev) { long time = ev.getEventTime(); final int N = ev.getHistorySize(); for (int i = 0; i < N; i++) { addPoint(ev.getHistoricalX(i), ev.getHistoricalY(i), ev.getHistoricalEventTime(i)); } addPoint(ev.getX(), ev.getY(), time); }
Example 7
Source File: PointerTracker.java From Indic-Keyboard with Apache License 2.0 | 5 votes |
private void onMoveEvent(final int x, final int y, final long eventTime, final MotionEvent me) { if (DEBUG_MOVE_EVENT) { printTouchEvent("onMoveEvent:", x, y, eventTime); } if (mIsTrackingForActionDisabled) { return; } if (sGestureEnabler.shouldHandleGesture() && me != null) { // Add historical points to gesture path. final int pointerIndex = me.findPointerIndex(mPointerId); final int historicalSize = me.getHistorySize(); for (int h = 0; h < historicalSize; h++) { final int historicalX = (int)me.getHistoricalX(pointerIndex, h); final int historicalY = (int)me.getHistoricalY(pointerIndex, h); final long historicalTime = me.getHistoricalEventTime(h); onGestureMoveEvent(historicalX, historicalY, historicalTime, false /* isMajorEvent */, null); } } if (isShowingMoreKeysPanel()) { final int translatedX = mMoreKeysPanel.translateX(x); final int translatedY = mMoreKeysPanel.translateY(y); mMoreKeysPanel.onMoveEvent(translatedX, translatedY, mPointerId, eventTime); onMoveKey(x, y); if (mIsInSlidingKeyInput) { sDrawingProxy.showSlidingKeyInputPreview(this); } return; } onMoveEventInternal(x, y, eventTime); }
Example 8
Source File: GameView.java From codeexamples-android with Eclipse Public License 1.0 | 5 votes |
@Override public boolean onGenericMotionEvent(MotionEvent event) { ensureInitialized(); // Check that the event came from a joystick since a generic motion event // could be almost anything. if ((event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0 && event.getAction() == MotionEvent.ACTION_MOVE) { // Cache the most recently obtained device information. // The device information may change over time but it can be // somewhat expensive to query. if (mLastInputDevice == null || mLastInputDevice.getId() != event.getDeviceId()) { mLastInputDevice = event.getDevice(); // It's possible for the device id to be invalid. // In that case, getDevice() will return null. if (mLastInputDevice == null) { return false; } } // Ignore joystick while the DPad is pressed to avoid conflicting motions. if (mDPadState != 0) { return true; } // Process all historical movement samples in the batch. final int historySize = event.getHistorySize(); for (int i = 0; i < historySize; i++) { processJoystickInput(event, i); } // Process the current movement sample in the batch. processJoystickInput(event, -1); return true; } return super.onGenericMotionEvent(event); }
Example 9
Source File: GameView.java From bluetooth with Apache License 2.0 | 5 votes |
public boolean onGenericMotionEvent(MotionEvent event) { if (0 == mDPadState) { // Process all historical movement samples in the batch. final int historySize = event.getHistorySize(); for (int i = 0; i < historySize; i++) { processJoystickInput(event, i); } // Process the current movement sample in the batch. processJoystickInput(event, -1); } return true; }
Example 10
Source File: EqualizerView.java From chromadoze with GNU General Public License v3.0 | 5 votes |
@Override public boolean onTouchEvent(@NonNull MotionEvent event) { if (mUiState.getLocked()) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mUiState.setLockBusy(true); return true; case MotionEvent.ACTION_UP: mUiState.setLockBusy(false); return true; case MotionEvent.ACTION_MOVE: return true; } return false; } switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mLastX = event.getX(); mLastY = event.getY(); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_MOVE: break; default: return false; } PhononMutable phm = mUiState.getPhononMutable(); for (int i = 0; i < event.getHistorySize(); i++) { touchLine(phm, event.getHistoricalX(i), event.getHistoricalY(i)); } touchLine(phm, event.getX(), event.getY()); if (mUiState.sendIfDirty()) { invalidate(); } return true; }
Example 11
Source File: MapView.java From Androzic with GNU General Public License v3.0 | 5 votes |
@Override public boolean onTrackballEvent(MotionEvent event) { int action = event.getAction(); switch (action) { case MotionEvent.ACTION_UP: setFollowingThroughContext(!isFollowing); break; case MotionEvent.ACTION_MOVE: if (!isFollowing) { int n = event.getHistorySize(); final float scaleX = event.getXPrecision(); final float scaleY = event.getYPrecision(); int dx = (int) (-event.getX() * scaleX); int dy = (int) (-event.getY() * scaleY); for (int i = 0; i < n; i++) { dx += -event.getHistoricalX(i) * scaleX; dy += -event.getHistoricalY(i) * scaleY; } if (Math.abs(dx) > 0 || Math.abs(dy) > 0) { onDragFinished(dx, dy); } } break; } /* * for (MapOverlay mo : this.overlays) if (mo.onTrackballEvent(event, * this)) return true; */ return true; }
Example 12
Source File: SignatureView.java From ResearchStack with Apache License 2.0 | 5 votes |
@Override public boolean onTouchEvent(MotionEvent event) { int x = (int) event.getX(); int y = (int) event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: sigPoints.add(new LinePathPoint(x, y, LinePathPoint.TYPE_LINE_START)); if (sigPath.isEmpty()) { callbacks.onSignatureStarted(); } sigPath.moveTo(x, y); invalidate(); break; case MotionEvent.ACTION_MOVE: case MotionEvent.ACTION_UP: int hSize = event.getHistorySize(); for (int i = 0; i < hSize; i++) { int hX = (int) event.getHistoricalX(i); int hY = (int) event.getHistoricalY(i); sigPath.lineTo(hX, hY); sigPoints.add(new LinePathPoint(x, y, LinePathPoint.TYPE_LINE_POINT)); } sigPath.lineTo(x, y); sigPoints.add(new LinePathPoint(x, y, LinePathPoint.TYPE_LINE_POINT)); invalidate(); break; } return true; }
Example 13
Source File: VerticalElasticityBounceEffect.java From elasticity with BSD 2-Clause "Simplified" License | 5 votes |
public boolean init(View view, MotionEvent event) { // We must have history available to calc the dx. Normally it's there - if it isn't temporarily, // we declare the event 'invalid' and expect it in consequent events. if (event.getHistorySize() == 0) { return false; } // Allow for counter-orientation-direction operations (e.g. item swiping) to run fluently. final float dy = event.getY(0) - event.getHistoricalY(0, 0); final float dx = event.getX(0) - event.getHistoricalX(0, 0); if (Math.abs(dx) > Math.abs(dy)) { return false; } if( dy == 0.f ) { // just click event return false; } // mAbsOffset = view.getTranslationY(); mAbsOffset = getViewOffset(view); mDeltaOffset = dy; mDir = mDeltaOffset > 0; Log.d("wxy-motion", String.format("mAbsOffset %s mDeltaOffset %s", mAbsOffset, mDeltaOffset)); Log.d("wxy-motion","mDir = " + mDir); return true; }
Example 14
Source File: CustomKeyboardView.java From FirefoxReality with Mozilla Public License 2.0 | 5 votes |
void addMovement(MotionEvent ev) { long time = ev.getEventTime(); final int N = ev.getHistorySize(); for (int i=0; i<N; i++) { addPoint(ev.getHistoricalX(i), ev.getHistoricalY(i), ev.getHistoricalEventTime(i)); } addPoint(ev.getX(), ev.getY(), time); }
Example 15
Source File: SignatureView2QueuePoints.java From codeexamples-android with Eclipse Public License 1.0 | 5 votes |
@Override public boolean onTouchEvent(MotionEvent event) { float eventX = event.getX(); float eventY = event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: path.moveTo(eventX, eventY); return true; case MotionEvent.ACTION_MOVE: case MotionEvent.ACTION_UP: // When the hardware tracks events faster than they are delivered, // the event will contain a history of those skipped points. int historySize = event.getHistorySize(); for (int i = 0; i < historySize; i++) { float historicalX = event.getHistoricalX(i); float historicalY = event.getHistoricalY(i); path.lineTo(historicalX, historicalY); } path.lineTo(eventX, eventY); break; default: return false; } // Schedules a repaint. invalidate(); return true; }
Example 16
Source File: DragLatencyFragment.java From walt with Apache License 2.0 | 5 votes |
@Override public boolean onTouch(View v, MotionEvent event) { int histLen = event.getHistorySize(); for (int i = 0; i < histLen; i++){ UsMotionEvent eh = new UsMotionEvent(event, waltDevice.clock.baseTime, i); touchEventList.add(eh); } UsMotionEvent e = new UsMotionEvent(event, waltDevice.clock.baseTime); touchEventList.add(e); moveCount += histLen + 1; updateCountsDisplay(); return true; }
Example 17
Source File: LockPatternView.java From android-lockpattern with Apache License 2.0 | 4 votes |
private void handleActionMove(MotionEvent event) { // Handle all recent motion events so we don't skip any cells even when the device // is busy... final float radius = mPathWidth; final int historySize = event.getHistorySize(); mTmpInvalidateRect.setEmpty(); boolean invalidateNow = false; for (int i = 0; i < historySize + 1; i++) { final float x = i < historySize ? event.getHistoricalX(i) : event.getX(); final float y = i < historySize ? event.getHistoricalY(i) : event.getY(); Cell hitCell = detectAndAddHit(x, y); final int patternSize = mPattern.size(); if (hitCell != null && patternSize == 1) { mPatternInProgress = true; notifyPatternStarted(); } // note current x and y for rubber banding of in progress patterns final float dx = Math.abs(x - mInProgressX); final float dy = Math.abs(y - mInProgressY); if (dx > DRAG_THRESHHOLD || dy > DRAG_THRESHHOLD) { invalidateNow = true; } if (mPatternInProgress && patternSize > 0) { final ArrayList<Cell> pattern = mPattern; final Cell lastCell = pattern.get(patternSize - 1); float lastCellCenterX = getCenterXForColumn(lastCell.column); float lastCellCenterY = getCenterYForRow(lastCell.row); // Adjust for drawn segment from last cell to (x,y). Radius accounts for line width. float left = Math.min(lastCellCenterX, x) - radius; float right = Math.max(lastCellCenterX, x) + radius; float top = Math.min(lastCellCenterY, y) - radius; float bottom = Math.max(lastCellCenterY, y) + radius; // Invalidate between the pattern's new cell and the pattern's previous cell if (hitCell != null) { final float width = mSquareWidth * 0.5f; final float height = mSquareHeight * 0.5f; final float hitCellCenterX = getCenterXForColumn(hitCell.column); final float hitCellCenterY = getCenterYForRow(hitCell.row); left = Math.min(hitCellCenterX - width, left); right = Math.max(hitCellCenterX + width, right); top = Math.min(hitCellCenterY - height, top); bottom = Math.max(hitCellCenterY + height, bottom); } // Invalidate between the pattern's last cell and the previous location mTmpInvalidateRect.union(Math.round(left), Math.round(top), Math.round(right), Math.round(bottom)); } } mInProgressX = event.getX(); mInProgressY = event.getY(); // To save updates, we only invalidate if the user moved beyond a certain amount. if (invalidateNow) { mInvalidate.union(mTmpInvalidateRect); invalidate(mInvalidate); mInvalidate.set(mTmpInvalidateRect); } }
Example 18
Source File: SwitchViewHolder.java From home-assistant-Android with GNU General Public License v3.0 | 4 votes |
private boolean considerMoved(MotionEvent event) { return (sliderRunnable.moved = sliderRunnable.moved || event.getHistorySize() >= 1 && Math.abs(event.getX() - event.getHistoricalX(0)) > 30f); }
Example 19
Source File: DrawableView.java From UltimateAndroid with Apache License 2.0 | 4 votes |
@Override public boolean onTouchEvent(MotionEvent event) { float eventX = event.getX(); float eventY = event.getY(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: path.moveTo(eventX, eventY); lastTouchX = eventX; lastTouchY = eventY; // There is no end point yet, so don't waste cycles invalidating. return true; case MotionEvent.ACTION_MOVE: case MotionEvent.ACTION_UP: // Start tracking the dirty region. resetDirtyRect(eventX, eventY); // When the hardware tracks events faster than they are delivered, the // event will contain a history of those skipped points. int historySize = event.getHistorySize(); for (int i = 0; i < historySize; i++) { float historicalX = event.getHistoricalX(i); float historicalY = event.getHistoricalY(i); expandDirtyRect(historicalX, historicalY); path.lineTo(historicalX, historicalY); } // After replaying history, connect the line to the touch point. path.lineTo(eventX, eventY); break; default: Logs.d("Ignored touch event: " + event.toString()); return false; } // Include half the stroke width to avoid clipping. invalidate( (int) (dirtyRect.left - HALF_STROKE_WIDTH), (int) (dirtyRect.top - HALF_STROKE_WIDTH), (int) (dirtyRect.right + HALF_STROKE_WIDTH), (int) (dirtyRect.bottom + HALF_STROKE_WIDTH)); lastTouchX = eventX; lastTouchY = eventY; return true; }
Example 20
Source File: MultiTouchController.java From Androzic with GNU General Public License v3.0 | 4 votes |
/** Process incoming touch events */ public boolean onTouchEvent(MotionEvent event) { try { int pointerCount = multiTouchSupported ? (Integer) m_getPointerCount.invoke(event) : 1; if (DEBUG) Log.i("MultiTouch", "Got here 1 - " + multiTouchSupported + " " + mMode + " " + handleSingleTouchEvents + " " + pointerCount); if (mMode == MODE_NOTHING && !handleSingleTouchEvents && pointerCount == 1) // Not handling initial single touch events, just pass them on return false; if (DEBUG) Log.i("MultiTouch", "Got here 2"); // Handle history first (we sometimes get history with ACTION_MOVE events) int action = event.getAction(); int histLen = event.getHistorySize() / pointerCount; for (int histIdx = 0; histIdx <= histLen; histIdx++) { // Read from history entries until histIdx == histLen, then read from current event boolean processingHist = histIdx < histLen; if (!multiTouchSupported || pointerCount == 1) { // Use single-pointer methods -- these are needed as a special case (for some weird reason) even if // multitouch is supported but there's only one touch point down currently -- event.getX(0) etc. throw // an exception if there's only one point down. if (DEBUG) Log.i("MultiTouch", "Got here 3"); xVals[0] = processingHist ? event.getHistoricalX(histIdx) : event.getX(); yVals[0] = processingHist ? event.getHistoricalY(histIdx) : event.getY(); pressureVals[0] = processingHist ? event.getHistoricalPressure(histIdx) : event.getPressure(); } else { // Read x, y and pressure of each pointer if (DEBUG) Log.i("MultiTouch", "Got here 4"); int numPointers = Math.min(pointerCount, MAX_TOUCH_POINTS); if (DEBUG && pointerCount > MAX_TOUCH_POINTS) Log.i("MultiTouch", "Got more pointers than MAX_TOUCH_POINTS"); for (int ptrIdx = 0; ptrIdx < numPointers; ptrIdx++) { int ptrId = (Integer) m_getPointerId.invoke(event, ptrIdx); pointerIds[ptrIdx] = ptrId; // N.B. if pointerCount == 1, then the following methods throw an array index out of range exception, // and the code above is therefore required not just for Android 1.5/1.6 but also for when there is // only one touch point on the screen -- pointlessly inconsistent :( xVals[ptrIdx] = (Float) (processingHist ? m_getHistoricalX.invoke(event, ptrIdx, histIdx) : m_getX.invoke(event, ptrIdx)); yVals[ptrIdx] = (Float) (processingHist ? m_getHistoricalY.invoke(event, ptrIdx, histIdx) : m_getY.invoke(event, ptrIdx)); pressureVals[ptrIdx] = (Float) (processingHist ? m_getHistoricalPressure.invoke(event, ptrIdx, histIdx) : m_getPressure .invoke(event, ptrIdx)); } } // Decode event decodeTouchEvent(pointerCount, xVals, yVals, pressureVals, pointerIds, // /* action = */processingHist ? MotionEvent.ACTION_MOVE : action, // /* down = */processingHist ? true : action != MotionEvent.ACTION_UP // && (action & ((1 << ACTION_POINTER_INDEX_SHIFT) - 1)) != ACTION_POINTER_UP // && action != MotionEvent.ACTION_CANCEL, // processingHist ? event.getHistoricalEventTime(histIdx) : event.getEventTime()); } return true; } catch (Exception e) { // In case any of the introspection stuff fails (it shouldn't) Log.e("MultiTouchController", "onTouchEvent() failed", e); return false; } }