List of usage examples for android.view VelocityTracker computeCurrentVelocity
public void computeCurrentVelocity(int units, float maxVelocity)
From source file:com.runnirr.doodleviewer.display.SlidingLayer.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!mEnabled || !mIsDragging && !mLastTouchAllowed && !allowSlidingFromHereX(ev, mInitialX) && !allowSlidingFromHereY(ev, mInitialY)) { return false; }//from w ww.j a v a2 s . co m final int action = ev.getAction(); if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_OUTSIDE) { mLastTouchAllowed = false; } else { mLastTouchAllowed = true; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: completeScroll(); // Remember where the motion event started mLastX = mInitialX = ev.getX(); mLastY = mInitialY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); break; case MotionEvent.ACTION_MOVE: if (!mIsDragging) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, pointerIndex); final float xDiff = Math.abs(x - mLastX); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastY); if (xDiff > mTouchSlop && xDiff > yDiff) { mIsDragging = true; mLastX = x; setDrawingCacheEnabled(true); } else if (yDiff > mTouchSlop && yDiff > xDiff) { mIsDragging = true; mLastY = y; setDrawingCacheEnabled(true); } } if (mIsDragging) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (activePointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final float deltaX = mLastX - x; final float deltaY = mLastY - y; mLastX = x; mLastY = y; final float oldScrollX = getScrollX(); final float oldScrollY = getScrollY(); float scrollX = oldScrollX + deltaX; float scrollY = oldScrollY + deltaY; // Log.d("Layer", String.format("Layer scrollX[%f],scrollY[%f]", scrollX, scrollY)); final float leftBound, rightBound; final float bottomBound, topBound; switch (mScreenSide) { case STICK_TO_LEFT: topBound = bottomBound = rightBound = 0; leftBound = getWidth(); // How far left we can scroll break; case STICK_TO_MIDDLE: topBound = getHeight(); bottomBound = -getHeight(); leftBound = getWidth(); rightBound = -getWidth(); break; case STICK_TO_RIGHT: rightBound = -getWidth(); topBound = bottomBound = leftBound = 0; break; case STICK_TO_TOP: topBound = getHeight(); bottomBound = rightBound = leftBound = 0; break; case STICK_TO_BOTTOM: topBound = rightBound = leftBound = 0; bottomBound = -getHeight(); break; default: topBound = bottomBound = rightBound = leftBound = 0; break; } if (scrollX > leftBound) { scrollX = leftBound; } else if (scrollX < rightBound) { scrollX = rightBound; } if (scrollY > topBound) { scrollY = topBound; } else if (scrollY < bottomBound) { scrollY = bottomBound; } // TODO top/bottom bounds // Keep the precision mLastX += scrollX - (int) scrollX; mLastY += scrollY - (int) scrollY; scrollTo((int) scrollX, (int) scrollY); } break; case MotionEvent.ACTION_UP: if (mIsDragging) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); final int scrollY = getScrollY(); final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final int totalDeltaX = (int) (x - mInitialX); final int totalDeltaY = (int) (y - mInitialY); boolean nextStateOpened = determineNextStateOpened(mIsOpen, scrollX, scrollY, initialVelocityX, initialVelocityY, totalDeltaX, totalDeltaY); switchLayer(nextStateOpened, true, true, initialVelocityX, initialVelocityY); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mIsOpen && closeOnTapEnabled) { closeLayer(true); } else if (!mIsOpen && openOnTapEnabled) { openLayer(true); } break; case MotionEvent.ACTION_CANCEL: if (mIsDragging) { switchLayer(mIsOpen, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastX = MotionEventCompat.getX(ev, index); mLastY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); mLastY = MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (mActivePointerId == INVALID_POINTER) { mLastTouchAllowed = false; } return true; }
From source file:com.shine.demo.viewpager.DirectionalViewPager.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) { // Don't handle edge touches immediately -- they may actually belong to one of our // descendants. return false; }//from ww w . ja v a 2 s .c o m if (mAdapter == null || mAdapter.getCount() == 0) { // Nothing to present or scroll; nothing to touch. return false; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); final int action = ev.getAction(); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { /* * If being flinged and user touches, stop the fling. isFinished * will be false if being flinged. */ completeScroll(); // Remember where the motion event started if (mOrientation == HORIZONTAL) { mLastMotionX = mInitialMotion = ev.getX(); } else { mLastMotionY = mInitialMotion = ev.getY(); } mActivePointerId = MotionEventCompat.getPointerId(ev, 0); break; } case MotionEvent.ACTION_MOVE: if (!mIsBeingDragged) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); final float xDiff = Math.abs(x - mLastMotionX); final float yDiff = Math.abs(y - mLastMotionY); float primaryDiff; float secondaryDiff; if (mOrientation == HORIZONTAL) { primaryDiff = xDiff; secondaryDiff = yDiff; } else { primaryDiff = yDiff; secondaryDiff = xDiff; } if (DEBUG) Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (primaryDiff > mTouchSlop && primaryDiff > secondaryDiff) { if (DEBUG) Log.v(TAG, "Starting drag!"); mIsBeingDragged = true; if (mOrientation == HORIZONTAL) { mLastMotionX = x; } else { mLastMotionY = y; } setScrollState(SCROLL_STATE_DRAGGING); setScrollingCacheEnabled(true); } } if (mIsBeingDragged) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); int size; float scroll; if (mOrientation == HORIZONTAL) { size = getWidth(); scroll = getScrollX() + (mLastMotionX - x); mLastMotionX = x; } else { size = getHeight(); scroll = getScrollY() + (mLastMotionY - y); mLastMotionY = y; } final float lowerBound = Math.max(0, (mCurItem - 1) * size); final float upperBound = Math.min(mCurItem + 1, mAdapter.getCount() - 1) * size; if (scroll < lowerBound) { scroll = lowerBound; } else if (scroll > upperBound) { scroll = upperBound; } if (mOrientation == HORIZONTAL) { // Don't lose the rounded component mLastMotionX += scroll - (int) scroll; scrollTo((int) scroll, getScrollY()); } else { // Don't lose the rounded component mLastMotionY += scroll - (int) scroll; scrollTo(getScrollX(), (int) scroll); } if (mOnPageChangeListener != null || (mOnPageChangeListeners != null && mOnPageChangeListeners.size() > 0)) { final int position = (int) scroll / size; final int positionOffsetPixels = (int) scroll % size; final float positionOffset = (float) positionOffsetPixels / size; if (mOnPageChangeListener != null) { mOnPageChangeListener.onPageScrolled(position, positionOffset, positionOffsetPixels); } if (mOnPageChangeListeners != null) { for (int i = 0, z = mOnPageChangeListeners.size(); i < z; i++) { OnPageChangeListener listener = mOnPageChangeListeners.get(i); if (listener != null) { listener.onPageScrolled(position, positionOffset, positionOffsetPixels); } } } } } break; case MotionEvent.ACTION_UP: if (mIsBeingDragged) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity; float lastMotion; int sizeOverThree; if (mOrientation == HORIZONTAL) { initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); lastMotion = mLastMotionX; sizeOverThree = getWidth() / 3; } else { initialVelocity = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); lastMotion = mLastMotionY; sizeOverThree = getHeight() / 3; } mPopulatePending = true; if ((Math.abs(initialVelocity) > mMinimumVelocity) || Math.abs(mInitialMotion - lastMotion) >= sizeOverThree) { if (lastMotion > mInitialMotion) { setCurrentItemInternal(mCurItem - 1, true, true); } else { setCurrentItemInternal(mCurItem + 1, true, true); } } else { setCurrentItemInternal(mCurItem, true, true); } mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEvent.ACTION_CANCEL: if (mIsBeingDragged) { setCurrentItemInternal(mCurItem, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); if (mOrientation == HORIZONTAL) { mLastMotionX = MotionEventCompat.getX(ev, index); } else { mLastMotionY = MotionEventCompat.getY(ev, index); } mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (mOrientation == HORIZONTAL) { mLastMotionX = MotionEventCompat.getX(ev, index); } else { mLastMotionY = MotionEventCompat.getY(ev, index); } break; } return true; }
From source file:com.xiaoyu.erbao.cctrls.SlidingLayer.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) { return false; }/* w w w.ja va2 s. c o m*/ if (!mEnabled || !mIsDragging && !touchPointIsWithinBounds(mInitialX, mInitialY)) { return false; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); final int action = ev.getAction(); switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { completeScroll(); // Remember where the motion event started mLastX = mInitialRawX = getViewX(ev); mLastY = mInitialRawY = getViewY(ev); mInitialX = ev.getX(); mInitialY = ev.getY(); mActivePointerId = ev.getPointerId(0); break; } case MotionEvent.ACTION_MOVE: { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (!touchPointIsWithinBounds(ev.getX(), ev.getY(), false)) return false; final float x = getViewX(ev); final float y = getViewY(ev); final float deltaX = mLastX - x; final float deltaY = mLastY - y; mLastX = x; mLastY = y; if (!mIsDragging) { final float xDiff = Math.abs(x - mInitialRawX); final float yDiff = Math.abs(y - mInitialRawY); final boolean validHorizontalDrag = xDiff > mTouchSlop && xDiff > yDiff; final boolean validVerticalDrag = yDiff > mTouchSlop && yDiff > xDiff; if (validHorizontalDrag || validVerticalDrag) { mIsDragging = true; setDrawingCacheEnabled(true); } } if (mIsDragging) { final float oldScrollX = getScrollX(); final float oldScrollY = getScrollY(); float scrollX = oldScrollX + deltaX; float scrollY = oldScrollY + deltaY; // Log.d("Layer", String.format("Layer scrollX[%f],scrollY[%f]", scrollX, scrollY)); final float leftBound, rightBound; final float bottomBound, topBound; switch (mScreenSide) { case STICK_TO_LEFT: topBound = bottomBound = rightBound = 0; leftBound = getWidth(); // How far left we can scroll break; case STICK_TO_RIGHT: rightBound = -getWidth(); topBound = bottomBound = leftBound = 0; break; case STICK_TO_TOP: topBound = getHeight(); bottomBound = rightBound = leftBound = 0; break; case STICK_TO_BOTTOM: bottomBound = -(getHeight() - computeOffsetDistance()); topBound = rightBound = leftBound = 0; break; default: topBound = bottomBound = rightBound = leftBound = 0; break; } if (scrollX > leftBound) { scrollX = leftBound; } else if (scrollX < rightBound) { scrollX = rightBound; } if (scrollY > topBound) { scrollY = topBound; } else if (scrollY < bottomBound) { scrollY = bottomBound; } // Keep the precision mLastX += scrollX - (int) scrollX; mLastY += scrollY - (int) scrollY; scrollToAndNotify((int) scrollX, (int) scrollY); } break; } case MotionEvent.ACTION_UP: { if (mIsDragging) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); final int scrollY = getScrollY(); final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = getViewX(ev); final float y = getViewY(ev); int nextState = determineNextStateForDrag(scrollX, scrollY, initialVelocityX, initialVelocityY, (int) mInitialRawX, (int) mInitialRawY, (int) x, (int) y); setLayerState(nextState, true, true, initialVelocityX, initialVelocityY); mActivePointerId = INVALID_VALUE; endDrag(); } else if (changeStateOnTap) { int nextState = determineNextStateAfterTap(); setLayerState(nextState, true, true); } break; } case MotionEvent.ACTION_CANCEL: if (mIsDragging) { setLayerState(mCurrentState, true, true); mActivePointerId = INVALID_VALUE; endDrag(); } break; case MotionEvent.ACTION_POINTER_DOWN: { final int pointerIndex = MotionEventCompat.getActionIndex(ev); mActivePointerId = ev.getPointerId(pointerIndex); mLastX = getViewX(ev); mLastY = getViewY(ev); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); mLastX = getViewX(ev); mLastY = getViewY(ev); break; } } return true; }
From source file:co.vn.e_alarm.customwiget.SlidingLayer.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!mEnabled || !mIsDragging && !mLastTouchAllowed && !allowSlidingFromHereX(ev, mInitialX) && !allowSlidingFromHereY(ev, mInitialY)) { return false; }/*from w w w . j a v a2s. co m*/ final int action = ev.getAction(); if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_OUTSIDE) { mLastTouchAllowed = false; } else { mLastTouchAllowed = true; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: completeScroll(); // Remember where the motion event started mLastX = mInitialX = ev.getX(); mLastY = mInitialY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); break; case MotionEvent.ACTION_MOVE: if (!mIsDragging) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, pointerIndex); final float xDiff = Math.abs(x - mLastX); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastY); if (xDiff > mTouchSlop && xDiff > yDiff) { mIsDragging = true; mLastX = x; setDrawingCacheEnabled(true); } else if (yDiff > mTouchSlop && yDiff > xDiff) { mIsDragging = true; mLastY = y; setDrawingCacheEnabled(true); } } if (mIsDragging) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (activePointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final float deltaX = mLastX - x; final float deltaY = mLastY - y; mLastX = x; mLastY = y; final float oldScrollX = getScrollX(); final float oldScrollY = getScrollY(); float scrollX = oldScrollX + deltaX; float scrollY = oldScrollY + deltaY; /* * Not need change : Done */ final float leftBound, rightBound; final float bottomBound, topBound; switch (mScreenSide) { case STICK_TO_LEFT: topBound = bottomBound = rightBound = 0; leftBound = getWidth(); // How far left we can scroll break; case STICK_TO_MIDDLE: topBound = getHeight(); bottomBound = -getHeight(); leftBound = getWidth(); rightBound = -getWidth(); break; case STICK_TO_RIGHT: rightBound = -getWidth(); topBound = bottomBound = leftBound = 0; break; case STICK_TO_TOP: topBound = getHeight(); bottomBound = rightBound = leftBound = 0; break; case STICK_TO_BOTTOM: topBound = rightBound = leftBound = 0; bottomBound = -getHeight(); break; default: topBound = bottomBound = rightBound = leftBound = 0; break; } if (scrollX > leftBound) { scrollX = leftBound; } else if (scrollX < rightBound) { scrollX = rightBound; } if (scrollY > topBound) { scrollY = topBound; } else if (scrollY < bottomBound) { scrollY = bottomBound; } // TODO top/bottom bounds // Keep the precision mLastX += scrollX - (int) scrollX; mLastY += scrollY - (int) scrollY; scrollTo((int) scrollX, (int) scrollY); } break; //--- Doan nay dang kiem tra case MotionEvent.ACTION_UP: if (mIsDragging) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); final int scrollY = getScrollY(); final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final int totalDeltaX = (int) (x - mInitialX); final int totalDeltaY = (int) (y - mInitialY); /* * Here is condition to check when to change state of layer. open / close. */ boolean nextStateOpened = determineNextStateOpened(mIsOpen, scrollX, scrollY, initialVelocityX, initialVelocityY, totalDeltaX, totalDeltaY); switchLayer(nextStateOpened, true, true, initialVelocityX, initialVelocityY); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mIsOpen && closeOnTapEnabled) { closeLayer(true); } else if (!mIsOpen && openOnTapEnabled) { openLayer(true); } break; case MotionEvent.ACTION_CANCEL: if (mIsDragging) { switchLayer(mIsOpen, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastX = MotionEventCompat.getX(ev, index); mLastY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); mLastY = MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (mActivePointerId == INVALID_POINTER) { mLastTouchAllowed = false; } return true; }
From source file:com.bitflake.counter.HorizontalPicker.java
@Override public boolean onTouchEvent(MotionEvent event) { if (!isEnabled()) { return false; }//from w ww . j a va 2s . c o m if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(event); int action = event.getActionMasked(); switch (action) { case MotionEvent.ACTION_MOVE: float currentMoveX = event.getX(); int deltaMoveX = (int) (lastDownEventX - currentMoveX); if (scrollingX || (Math.abs(deltaMoveX) > touchSlop) && values != null && values.length > 0) { if (!scrollingX) { deltaMoveX = 0; pressedItem = -1; scrollingX = true; getParent().requestDisallowInterceptTouchEvent(true); stopMarqueeIfNeeded(); } final int range = getScrollRange(); if (overScrollBy(deltaMoveX, 0, getScrollX(), 0, range, 0, overscrollDistance, 0, true)) { mVelocityTracker.clear(); } final float pulledToX = getScrollX() + deltaMoveX; if (pulledToX < 0) { leftEdgeEffect.onPull((float) deltaMoveX / getWidth()); if (!rightEdgeEffect.isFinished()) { rightEdgeEffect.onRelease(); } } else if (pulledToX > range) { rightEdgeEffect.onPull((float) deltaMoveX / getWidth()); if (!leftEdgeEffect.isFinished()) { leftEdgeEffect.onRelease(); } } lastDownEventX = currentMoveX; invalidate(); } break; case MotionEvent.ACTION_DOWN: if (!adjustScrollerX.isFinished()) { adjustScrollerX.forceFinished(true); } else if (!flingScrollerX.isFinished()) { flingScrollerX.forceFinished(true); } else { scrollingX = false; } lastDownEventX = event.getX(); if (!scrollingX) { pressedItem = getPositionFromTouch(event.getX()); } invalidate(); break; case MotionEvent.ACTION_UP: VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, maximumFlingVelocity); int initialVelocityX = (int) velocityTracker.getXVelocity(); if (scrollingX && Math.abs(initialVelocityX) > mMinimumFlingVelocity) { flingX(initialVelocityX); } else if (values != null) { float positionX = event.getX(); if (!scrollingX) { int itemPos = getPositionOnScreen(positionX); int relativePos = itemPos - sideItems; if (relativePos == 0) { selectItem(); } else { smoothScrollBy(relativePos); } } else if (scrollingX) { finishScrolling(); } } mVelocityTracker.recycle(); mVelocityTracker = null; if (leftEdgeEffect != null) { leftEdgeEffect.onRelease(); rightEdgeEffect.onRelease(); } case MotionEvent.ACTION_CANCEL: pressedItem = -1; invalidate(); if (leftEdgeEffect != null) { leftEdgeEffect.onRelease(); rightEdgeEffect.onRelease(); } break; } return true; }
From source file:com.coco.draggablegridviewpager.DraggableGridViewPager.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) { // Don't handle edge touches immediately -- they may actually belong to one of our // descendants. return false; }/*w w w.ja v a 2 s.co m*/ if (mPageCount <= 0) { // Nothing to present or scroll; nothing to touch. return false; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); final int action = ev.getAction(); boolean needsInvalidate = false; switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { mScroller.abortAnimation(); // Remember where the motion event started mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = mInitialMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); DEBUG_LOG("Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + " mIsUnableToDrag=" + mIsUnableToDrag); if (!mIsBeingDragged && mScrollState == SCROLL_STATE_IDLE) { mLastPosition = getPositionByXY((int) mLastMotionX, (int) mLastMotionY); } else { mLastPosition = -1; } if (mLastPosition >= 0) { mLastDownTime = System.currentTimeMillis(); } else { mLastDownTime = Long.MAX_VALUE; } DEBUG_LOG("Down at mLastPosition=" + mLastPosition); mLastDragged = -1; break; } case MotionEvent.ACTION_MOVE: { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); if (mLastDragged >= 0) { // change draw location of dragged visual final View v = getChildAt(mLastDragged); final int l = getScrollX() + (int) x - v.getWidth() / 2; final int t = getScrollY() + (int) y - v.getHeight() / 2; v.layout(l, t, l + v.getWidth(), t + v.getHeight()); // check for new target hover if (mScrollState == SCROLL_STATE_IDLE) { final int target = getTargetByXY((int) x, (int) y); if (target != -1 && mLastTarget != target) { animateGap(target); mLastTarget = target; DEBUG_LOG("Moved to mLastTarget=" + mLastTarget); } // edge holding final int edge = getEdgeByXY((int) x, (int) y); if (mLastEdge == -1) { if (edge != mLastEdge) { mLastEdge = edge; mLastEdgeTime = System.currentTimeMillis(); } } else { if (edge != mLastEdge) { mLastEdge = -1; } else { if ((System.currentTimeMillis() - mLastEdgeTime) >= EDGE_HOLD_DURATION) { performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); triggerSwipe(edge); mLastEdge = -1; } } } } } else if (!mIsBeingDragged) { final float xDiff = Math.abs(x - mLastMotionX); final float yDiff = Math.abs(y - mLastMotionY); DEBUG_LOG("Moved to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (xDiff > mTouchSlop && xDiff > yDiff) { DEBUG_LOG("Starting drag!"); mIsBeingDragged = true; requestParentDisallowInterceptTouchEvent(true); mLastMotionX = x - mInitialMotionX > 0 ? mInitialMotionX + mTouchSlop : mInitialMotionX - mTouchSlop; mLastMotionY = y; setScrollState(SCROLL_STATE_DRAGGING); setScrollingCacheEnabled(true); } } // Not else! Note that mIsBeingDragged can be set above. if (mIsBeingDragged) { // Scroll to follow the motion event needsInvalidate |= performDrag(x); } else if (mLastPosition >= 0) { final int currentPosition = getPositionByXY((int) x, (int) y); DEBUG_LOG("Moved to currentPosition=" + currentPosition); if (currentPosition == mLastPosition) { if ((System.currentTimeMillis() - mLastDownTime) >= LONG_CLICK_DURATION) { if (onItemLongClick(currentPosition)) { performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); mLastDragged = mLastPosition; requestParentDisallowInterceptTouchEvent(true); mLastTarget = -1; animateDragged(); mLastPosition = -1; } mLastDownTime = Long.MAX_VALUE; } } else { mLastPosition = -1; } } break; } case MotionEvent.ACTION_UP: { DEBUG_LOG("Touch up!!!"); final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); if (mLastDragged >= 0) { rearrange(); } else if (mIsBeingDragged) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int width = getWidth(); final int scrollX = getScrollX(); final int currentPage = scrollX / width; final int offsetPixels = scrollX - currentPage * width; final float pageOffset = (float) offsetPixels / (float) width; final int totalDelta = (int) (x - mInitialMotionX); int nextPage = determineTargetPage(currentPage, pageOffset, initialVelocity, totalDelta); setCurrentItemInternal(nextPage, true, true, initialVelocity); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mLastPosition >= 0) { final int currentPosition = getPositionByXY((int) x, (int) y); DEBUG_LOG("Touch up!!! currentPosition=" + currentPosition); if (currentPosition == mLastPosition) { onItemClick(currentPosition); } } break; } case MotionEvent.ACTION_CANCEL: DEBUG_LOG("Touch cancel!!!"); if (mLastDragged >= 0) { rearrange(); } else if (mIsBeingDragged) { scrollToItem(mCurItem, true, 0, false); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); final float x = MotionEventCompat.getX(ev, index); mLastMotionX = x; mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:kr.selfcontrol.selflocklauncher.picker.HorizontalPicker.java
@Override public boolean onTouchEvent(MotionEvent event) { if (!isEnabled()) { return false; }/* w w w . ja v a2 s.c om*/ if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(event); int action = event.getActionMasked(); switch (action) { case MotionEvent.ACTION_MOVE: float currentMoveX = event.getX(); int deltaMoveX = (int) (mLastDownEventX - currentMoveX); if (mScrollingX || (Math.abs(deltaMoveX) > mTouchSlop) && mValues != null && mValues.length > 0) { if (!mScrollingX) { deltaMoveX = 0; mPressedItem = -1; mScrollingX = true; stopMarqueeIfNeeded(); } final int range = getScrollRange(); if (overScrollBy(deltaMoveX, 0, getScrollX(), 0, range, 0, mOverscrollDistance, 0, true)) { mVelocityTracker.clear(); } final float pulledToX = getScrollX() + deltaMoveX; if (pulledToX < 0) { mLeftEdgeEffect.onPull((float) deltaMoveX / getWidth()); if (!mRightEdgeEffect.isFinished()) { mRightEdgeEffect.onRelease(); } } else if (pulledToX > range) { mRightEdgeEffect.onPull((float) deltaMoveX / getWidth()); if (!mLeftEdgeEffect.isFinished()) { mLeftEdgeEffect.onRelease(); } } mLastDownEventX = currentMoveX; invalidate(); } break; case MotionEvent.ACTION_DOWN: if (!mAdjustScrollerX.isFinished()) { mAdjustScrollerX.forceFinished(true); } else if (!mFlingScrollerX.isFinished()) { mFlingScrollerX.forceFinished(true); } else { mScrollingX = false; } mLastDownEventX = event.getX(); if (!mScrollingX) { mPressedItem = getPositionFromTouch(event.getX()); } invalidate(); break; case MotionEvent.ACTION_UP: VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumFlingVelocity); int initialVelocityX = (int) velocityTracker.getXVelocity(); if (mScrollingX && Math.abs(initialVelocityX) > mMinimumFlingVelocity) { flingX(initialVelocityX); } else if (mValues != null) { float positionX = event.getX(); if (!mScrollingX) { int itemPos = getPositionOnScreen(positionX); int relativePos = itemPos - mSideItems; if (relativePos == 0) { selectItem(); } else { smoothScrollBy(relativePos); } } else if (mScrollingX) { finishScrolling(); } } mVelocityTracker.recycle(); mVelocityTracker = null; if (mLeftEdgeEffect != null) { mLeftEdgeEffect.onRelease(); mRightEdgeEffect.onRelease(); } case MotionEvent.ACTION_CANCEL: mPressedItem = -1; invalidate(); if (mLeftEdgeEffect != null) { mLeftEdgeEffect.onRelease(); mRightEdgeEffect.onRelease(); } break; } return true; }
From source file:cn.org.eshow.framwork.view.slidingmenu.CustomViewAbove.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!mEnabled) return false; if (!mIsBeingDragged && !thisTouchAllowed(ev)) return false; // if (!mIsBeingDragged && !mQuickReturn) // return false; final int action = ev.getAction(); if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); }//ww w . j av a 2 s .c o m mVelocityTracker.addMovement(ev); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: /* * If being flinged and user touches, stop the fling. isFinished * will be false if being flinged. */ completeScroll(); // Remember where the motion event started int index = MotionEventCompat.getActionIndex(ev); mActivePointerId = MotionEventCompat.getPointerId(ev, index); mLastMotionX = mInitialMotionX = ev.getX(); break; case MotionEvent.ACTION_MOVE: if (!mIsBeingDragged) { determineDrag(ev); if (mIsUnableToDrag) return false; } if (mIsBeingDragged) { // Scroll to follow the motion event final int activePointerIndex = getPointerIndex(ev, mActivePointerId); if (mActivePointerId == INVALID_POINTER) break; final float x = MotionEventCompat.getX(ev, activePointerIndex); final float deltaX = mLastMotionX - x; mLastMotionX = x; float oldScrollX = getScrollX(); float scrollX = oldScrollX + deltaX; final float leftBound = getLeftBound(); final float rightBound = getRightBound(); if (scrollX < leftBound) { scrollX = leftBound; } else if (scrollX > rightBound) { scrollX = rightBound; } // Don't lose the rounded component mLastMotionX += scrollX - (int) scrollX; scrollTo((int) scrollX, getScrollY()); pageScrolled((int) scrollX); } break; case MotionEvent.ACTION_UP: if (mIsBeingDragged) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); // final int widthWithMargin = getWidth(); // final float pageOffset = (float) (scrollX % widthWithMargin) / widthWithMargin; // TODO test this. should get better flinging behavior final float pageOffset = (float) (scrollX - getDestScrollX(mCurItem)) / getBehindWidth(); final int activePointerIndex = getPointerIndex(ev, mActivePointerId); if (mActivePointerId != INVALID_POINTER) { final float x = MotionEventCompat.getX(ev, activePointerIndex); final int totalDelta = (int) (x - mInitialMotionX); int nextPage = determineTargetPage(pageOffset, initialVelocity, totalDelta); setCurrentItemInternal(nextPage, true, true, initialVelocity); } else { setCurrentItemInternal(mCurItem, true, true, initialVelocity); } mActivePointerId = INVALID_POINTER; endDrag(); } else if (mQuickReturn && mViewBehind.menuTouchInQuickReturn(mContent, mCurItem, ev.getX() + mScrollX)) { // close the menu setCurrentItem(1); endDrag(); } break; case MotionEvent.ACTION_CANCEL: if (mIsBeingDragged) { setCurrentItemInternal(mCurItem, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int indexx = MotionEventCompat.getActionIndex(ev); mLastMotionX = MotionEventCompat.getX(ev, indexx); mActivePointerId = MotionEventCompat.getPointerId(ev, indexx); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); int pointerIndex = getPointerIndex(ev, mActivePointerId); if (mActivePointerId == INVALID_POINTER) break; mLastMotionX = MotionEventCompat.getX(ev, pointerIndex); break; } return true; }
From source file:com.ebaonet.lawyer.ui.weight.DraggableGridViewPager.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) { // Don't handle edge touches immediately -- they may actually belong // to one of our // descendants. return false; }/*from w w w . j a va 2 s. c om*/ if (mPageCount <= 0) { // Nothing to present or scroll; nothing to touch. return false; } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); final int action = ev.getAction(); boolean needsInvalidate = false; switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { mScroller.abortAnimation(); // Remember where the motion event started mLastMotionX = mInitialMotionX = ev.getX(); mLastMotionY = mInitialMotionY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); DEBUG_LOG("Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged + " mIsUnableToDrag=" + mIsUnableToDrag); if (!mIsBeingDragged && mScrollState == SCROLL_STATE_IDLE) { mLastPosition = getPositionByXY((int) mLastMotionX, (int) mLastMotionY); } else { mLastPosition = -1; } if (mLastPosition >= 0) { mLastDownTime = System.currentTimeMillis(); } else { mLastDownTime = Long.MAX_VALUE; } DEBUG_LOG("Down at mLastPosition=" + mLastPosition); mLastDragged = -1; break; } case MotionEvent.ACTION_MOVE: { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); if (mLastDragged >= 0) { // change draw location of dragged visual final View v = getChildAt(mLastDragged); final int l = getScrollX() + (int) x - v.getWidth() / 2; final int t = getScrollY() + (int) y - v.getHeight() / 2; v.layout(l, t, l + v.getWidth(), t + v.getHeight()); // check for new target hover if (mScrollState == SCROLL_STATE_IDLE) { final int target = getTargetByXY((int) x, (int) y); if (target != -1 && mLastTarget != target) { animateGap(target); mLastTarget = target; DEBUG_LOG("Moved to mLastTarget=" + mLastTarget); } // edge holding final int edge = getEdgeByXY((int) x, (int) y); if (mLastEdge == -1) { if (edge != mLastEdge) { mLastEdge = edge; mLastEdgeTime = System.currentTimeMillis(); } } else { if (edge != mLastEdge) { mLastEdge = -1; } else { if ((System.currentTimeMillis() - mLastEdgeTime) >= EDGE_HOLD_DURATION) { performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); triggerSwipe(edge); mLastEdge = -1; } } } } } else if (!mIsBeingDragged) { final float xDiff = Math.abs(x - mLastMotionX); final float yDiff = Math.abs(y - mLastMotionY); DEBUG_LOG("Moved to " + x + "," + y + " diff=" + xDiff + "," + yDiff); if (xDiff > mTouchSlop && xDiff > yDiff) { DEBUG_LOG("Starting drag!"); mIsBeingDragged = true; requestParentDisallowInterceptTouchEvent(true); mLastMotionX = x - mInitialMotionX > 0 ? mInitialMotionX + mTouchSlop : mInitialMotionX - mTouchSlop; mLastMotionY = y; setScrollState(SCROLL_STATE_DRAGGING); setScrollingCacheEnabled(true); } } // Not else! Note that mIsBeingDragged can be set above. if (mIsBeingDragged) { // Scroll to follow the motion event needsInvalidate |= performDrag(x); } else if (mLastPosition >= 0) { final int currentPosition = getPositionByXY((int) x, (int) y); DEBUG_LOG("Moved to currentPosition=" + currentPosition); if (currentPosition == mLastPosition) { if ((System.currentTimeMillis() - mLastDownTime) >= LONG_CLICK_DURATION) { if (onItemLongClick(currentPosition)) { performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); mLastDragged = mLastPosition; requestParentDisallowInterceptTouchEvent(true); mLastTarget = -1; animateDragged(); mLastPosition = -1; } mLastDownTime = Long.MAX_VALUE; } } else { mLastPosition = -1; } } break; } case MotionEvent.ACTION_UP: { DEBUG_LOG("Touch up!!!"); final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float y = MotionEventCompat.getY(ev, pointerIndex); if (mLastDragged >= 0) { rearrange(); } else if (mIsBeingDragged) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int width = getWidth(); final int scrollX = getScrollX(); final int currentPage = scrollX / width; final int offsetPixels = scrollX - currentPage * width; final float pageOffset = (float) offsetPixels / (float) width; final int totalDelta = (int) (x - mInitialMotionX); int nextPage = determineTargetPage(currentPage, pageOffset, initialVelocity, totalDelta); setCurrentItemInternal(nextPage, true, true, initialVelocity); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mLastPosition >= 0) { final int currentPosition = getPositionByXY((int) x, (int) y); DEBUG_LOG("Touch up!!! currentPosition=" + currentPosition); if (currentPosition == mLastPosition) { onItemClick(currentPosition); } } break; } case MotionEvent.ACTION_CANCEL: DEBUG_LOG("Touch cancel!!!"); if (mLastDragged >= 0) { rearrange(); } else if (mIsBeingDragged) { scrollToItem(mCurItem, true, 0, false); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); final float x = MotionEventCompat.getX(ev, index); mLastMotionX = x; mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:com.danilov.supermanga.core.view.SlidingLayer.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (ev.getEdgeFlags() == 4099) { return false; }//from w w w.j av a 2 s . c o m if (!mEnabled || !mIsDragging && !mLastTouchAllowed && !allowSlidingFromHereX(ev, mInitialX) && !allowSlidingFromHereY(ev, mInitialY)) { return false; } final int action = ev.getAction(); mLastTouchAllowed = !(action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_OUTSIDE); if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: completeScroll(); // Remember where the motion event started mLastX = mInitialX = ev.getX(); mLastY = mInitialY = ev.getY(); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); break; case MotionEvent.ACTION_MOVE: if (!mIsDragging) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (pointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, pointerIndex); final float xDiff = Math.abs(x - mLastX); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - mLastY); if (xDiff > mTouchSlop && xDiff > yDiff) { mIsDragging = true; mLastX = x; setDrawingCacheEnabled(true); } else if (yDiff > mTouchSlop && yDiff > xDiff) { mIsDragging = true; mLastY = y; setDrawingCacheEnabled(true); } } if (mIsDragging) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (activePointerIndex == -1) { mActivePointerId = INVALID_POINTER; break; } final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final float deltaX = mLastX - x; final float deltaY = mLastY - y; mLastX = x; mLastY = y; final float oldScrollX = getScrollX(); final float oldScrollY = getScrollY(); float scrollX = oldScrollX + deltaX; float scrollY = oldScrollY + deltaY; // Log.d("Layer", String.format("Layer scrollX[%f],scrollY[%f]", scrollX, scrollY)); final float leftBound, rightBound; final float bottomBound, topBound; switch (mScreenSide) { case STICK_TO_LEFT: topBound = bottomBound = rightBound = 0; leftBound = getWidth(); // How far left we can scroll break; case STICK_TO_MIDDLE: topBound = getHeight(); bottomBound = -getHeight(); leftBound = getWidth(); rightBound = -getWidth(); break; case STICK_TO_RIGHT: rightBound = -getWidth(); topBound = bottomBound = leftBound = 0; break; case STICK_TO_TOP: topBound = getHeight(); bottomBound = rightBound = leftBound = 0; break; case STICK_TO_BOTTOM: topBound = rightBound = leftBound = 0; bottomBound = -getHeight(); break; default: topBound = bottomBound = rightBound = leftBound = 0; break; } if (scrollX > leftBound) { scrollX = leftBound; } else if (scrollX < rightBound) { scrollX = rightBound; } if (scrollY > topBound) { scrollY = topBound; } else if (scrollY < bottomBound) { scrollY = bottomBound; } // Keep the precision mLastX += scrollX - (int) scrollX; mLastY += scrollY - (int) scrollY; scrollTo((int) scrollX, (int) scrollY); } break; case MotionEvent.ACTION_UP: if (mIsDragging) { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId); final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId); final int scrollX = getScrollX(); final int scrollY = getScrollY(); final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final float y = MotionEventCompat.getY(ev, activePointerIndex); final int totalDeltaX = (int) (x - mInitialX); final int totalDeltaY = (int) (y - mInitialY); boolean nextStateOpened = determineNextStateOpened(mIsOpen, scrollX, scrollY, initialVelocityX, initialVelocityY, totalDeltaX, totalDeltaY); switchLayer(nextStateOpened, true, true, initialVelocityX, initialVelocityY); mActivePointerId = INVALID_POINTER; endDrag(); } else if (mIsOpen && closeOnTapEnabled) { closeLayer(true); } else if (!mIsOpen && openOnTapEnabled) { openLayer(true); } break; case MotionEvent.ACTION_CANCEL: if (mIsDragging) { switchLayer(mIsOpen, true, true); mActivePointerId = INVALID_POINTER; endDrag(); } break; case MotionEventCompat.ACTION_POINTER_DOWN: { final int index = MotionEventCompat.getActionIndex(ev); mLastX = MotionEventCompat.getX(ev, index); mLastY = MotionEventCompat.getY(ev, index); mActivePointerId = MotionEventCompat.getPointerId(ev, index); break; } case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); mLastX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); mLastY = MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId)); break; } if (mActivePointerId == INVALID_POINTER) { mLastTouchAllowed = false; } return true; }