List of usage examples for android.support.v4.view MotionEventCompat findPointerIndex
public static int findPointerIndex(MotionEvent event, int pointerId)
From source file:ayushi.view.customview.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view *//*w w w .j av a2s . c om*/ public void processTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) mInitialMotionX[pointerId], (int) mInitialMotionY[pointerId]); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:android.improving.utils.views.swipeback.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will * dispatch callback events as needed before returning. The parent view's * onTouchEvent implementation should call this. * /*from ww w.j av a 2s . c o m*/ * @param ev * The touch event received by the parent view */ public void processTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch // event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal // down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is // under this // point, we'll swap to controlling it with this pointer // instead. // (This will still work if we're "catching" a settling // view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to // the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the // view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:com.android.dialer.widget.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view *///from w w w .j a v a 2s. co m public void processTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(TAG, "Pointer index for id " + mActivePointerId + " not found." + " Skipping MotionEvent"); return; } final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:com.oguzbabaoglu.cardpager.CardPager.java
@Override public boolean onTouchEvent(@NonNull 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 a2s . co m if (pagerAdapter == null || pagerAdapter.getCount() == 0) { // Nothing to present or scroll; nothing to touch. return false; } if (velocityTracker == null) { velocityTracker = VelocityTracker.obtain(); } velocityTracker.addMovement(ev); final int action = ev.getAction(); switch (action & MotionEventCompat.ACTION_MASK) { case MotionEvent.ACTION_DOWN: // Do not interfere with the settling action. if (scrollState != SCROLL_STATE_SETTLING) { scroller.abortAnimation(); populatePending = false; populate(); } // Remember where the motion event started lastMotionX = initialMotionX = ev.getX(); lastMotionY = initialMotionY = ev.getY(); activePointerId = MotionEventCompat.getPointerId(ev, 0); break; case MotionEvent.ACTION_MOVE: if (!dragInProgress) { final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, pointerIndex); final float xDiff = Math.abs(x - lastMotionX); final float y = MotionEventCompat.getY(ev, pointerIndex); final float yDiff = Math.abs(y - lastMotionY); if (xDiff > touchSlop && xDiff > yDiff) { dragInProgress = true; lastMotionX = x - initialMotionX > 0 ? initialMotionX + touchSlop : initialMotionX - touchSlop; lastMotionY = y; setScrollState(SCROLL_STATE_DRAGGING); // Disallow Parent Intercept, just in case requestParentDisallowInterceptTouchEvent(true); } } // Not else! Note that dragInProgress can be set above. if (dragInProgress) { // Scroll to follow the motion event final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); performDrag(x); } break; case MotionEvent.ACTION_UP: if (!dragInProgress) { break; } final VelocityTracker velocityTracker = this.velocityTracker; velocityTracker.computeCurrentVelocity(1000, maximumVelocity); final int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, activePointerId); populatePending = true; final int width = getClientWidth(); final int scrollX = getScrollX(); final ItemInfo ii = infoForCurrentScrollPosition(); final int currentPage = ii.position; final float pageOffset = ((float) scrollX / width) - ii.offset; final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId); final float x = MotionEventCompat.getX(ev, activePointerIndex); final int totalDelta = (int) (x - initialMotionX); final int nextPage = determineTargetPage(currentPage, pageOffset, initialVelocity, totalDelta); setCurrentItemInternal(nextPage, true, true, initialVelocity); activePointerId = INVALID_POINTER; endDrag(); break; case MotionEvent.ACTION_CANCEL: if (!dragInProgress) { break; } scrollToItem(currentItem, true, 0); activePointerId = INVALID_POINTER; endDrag(); break; case MotionEventCompat.ACTION_POINTER_DOWN: final int index = MotionEventCompat.getActionIndex(ev); lastMotionX = MotionEventCompat.getX(ev, index); activePointerId = MotionEventCompat.getPointerId(ev, index); break; case MotionEventCompat.ACTION_POINTER_UP: onSecondaryPointerUp(ev); lastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, activePointerId)); break; } return true; }
From source file:com.cylee.dragcontentviewpager.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view *//* w w w . j a v a2s. c o m*/ public void processTouchEvent(MotionEvent ev) { final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't getInstance // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:com.hxqc.mall.core.views.SlidingUpView.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view */// w ww . j a va 2 s . com public void processTouchEvent(MotionEvent ev) { DebugLog.i(TAG, "ViewDragHelper processTouchEvent ======= BEGIN"); final int action = MotionEventCompat.getActionMasked(ev); final int actionIndex = MotionEventCompat.getActionIndex(ev); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = MotionEventCompat.getPointerId(ev, 0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEventCompat.ACTION_POINTER_DOWN: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); final float x = MotionEventCompat.getX(ev, actionIndex); final float y = MotionEventCompat.getY(ev, actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); final float x = MotionEventCompat.getX(ev, index); final float y = MotionEventCompat.getY(ev, index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); DebugLog.e(TAG, " ViewDragHelper processEvent ========= idx : " + idx + " idy : " + idy); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int pointerId = MotionEventCompat.getPointerId(ev, i); final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) mInitialMotionX[pointerId], (int) mInitialMotionY[pointerId]); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEventCompat.ACTION_POINTER_UP: { final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = MotionEventCompat.getPointerCount(ev); for (int i = 0; i < pointerCount; i++) { final int id = MotionEventCompat.getPointerId(ev, i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = MotionEventCompat.getX(ev, i); final float y = MotionEventCompat.getY(ev, i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:android.support.v7.widget.RecyclerView.java
@Override public boolean onInterceptTouchEvent(MotionEvent e) { if (dispatchOnItemTouchIntercept(e)) { cancelTouch();/* w w w . j a v a 2 s . c o m*/ return true; } final boolean canScrollHorizontally = mLayout.canScrollHorizontally(); final boolean canScrollVertically = mLayout.canScrollVertically(); if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(e); final int action = MotionEventCompat.getActionMasked(e); final int actionIndex = MotionEventCompat.getActionIndex(e); switch (action) { case MotionEvent.ACTION_DOWN: mScrollPointerId = MotionEventCompat.getPointerId(e, 0); mInitialTouchX = mLastTouchX = (int) (e.getX() + 0.5f); mInitialTouchY = mLastTouchY = (int) (e.getY() + 0.5f); if (mScrollState == SCROLL_STATE_SETTLING) { getParent().requestDisallowInterceptTouchEvent(true); setScrollState(SCROLL_STATE_DRAGGING); } break; case MotionEventCompat.ACTION_POINTER_DOWN: mScrollPointerId = MotionEventCompat.getPointerId(e, actionIndex); mInitialTouchX = mLastTouchX = (int) (MotionEventCompat.getX(e, actionIndex) + 0.5f); mInitialTouchY = mLastTouchY = (int) (MotionEventCompat.getY(e, actionIndex) + 0.5f); break; case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(e, mScrollPointerId); if (index < 0) { Log.e(TAG, "Error processing scroll; pointer index for id " + mScrollPointerId + " not found. Did any MotionEvents get skipped?"); return false; } final int x = (int) (MotionEventCompat.getX(e, index) + 0.5f); final int y = (int) (MotionEventCompat.getY(e, index) + 0.5f); if (mScrollState != SCROLL_STATE_DRAGGING) { final int dx = x - mInitialTouchX; final int dy = y - mInitialTouchY; boolean startScroll = false; if (canScrollHorizontally && Math.abs(dx) > mTouchSlop) { mLastTouchX = mInitialTouchX + mTouchSlop * (dx < 0 ? -1 : 1); startScroll = true; } if (canScrollVertically && Math.abs(dy) > mTouchSlop) { mLastTouchY = mInitialTouchY + mTouchSlop * (dy < 0 ? -1 : 1); startScroll = true; } if (startScroll) { getParent().requestDisallowInterceptTouchEvent(true); setScrollState(SCROLL_STATE_DRAGGING); } } } break; case MotionEventCompat.ACTION_POINTER_UP: { onPointerUp(e); } break; case MotionEvent.ACTION_UP: { mVelocityTracker.clear(); } break; case MotionEvent.ACTION_CANCEL: { cancelTouch(); } } return mScrollState == SCROLL_STATE_DRAGGING; }
From source file:com.boutline.sports.helpers.TwoWayView.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!isEnabled()) { // A disabled view that is clickable still consumes the touch // events, it just doesn't respond to them. return isClickable() || isLongClickable(); }// w ww . java2 s. c o m if (!mIsAttached || mAdapter == null) { return false; } boolean needsInvalidate = false; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: { if (mDataChanged) { break; } mVelocityTracker.clear(); mScroller.abortAnimation(); final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); int motionPosition = pointToPosition((int) x, (int) y); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mDataChanged) { break; } if (mTouchMode == TOUCH_MODE_FLINGING) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); motionPosition = findMotionRowOrColumn((int) mLastTouchPos); return true; } else if (mMotionPosition >= 0 && mAdapter.isEnabled(mMotionPosition)) { mTouchMode = TOUCH_MODE_DOWN; triggerCheckForTap(); } mMotionPosition = motionPosition; break; } case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: // Check if we have moved far enough that it looks more like a // scroll than a tap maybeStartScrolling(delta); break; case TOUCH_MODE_DRAGGING: case TOUCH_MODE_OVERSCROLL: mLastTouchPos = pos; maybeScroll(delta); break; } break; } case MotionEvent.ACTION_CANCEL: cancelCheckForTap(); mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } if (mStartEdge != null && mEndEdge != null) { needsInvalidate = mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; case MotionEvent.ACTION_UP: { switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: { final int motionPosition = mMotionPosition; final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final float y = ev.getY(); final boolean inList; if (mIsVertical) { inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); } else { inList = y > getPaddingTop() && y < getHeight() - getPaddingBottom(); } if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { if (mTouchMode == TOUCH_MODE_DOWN) { cancelCheckForTap(); } else { cancelCheckForLongPress(); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setPressed(true); positionSelector(mMotionPosition, child); child.setPressed(true); if (mSelector != null) { Drawable d = mSelector.getCurrent(); if (d != null && d instanceof TransitionDrawable) { ((TransitionDrawable) d).resetTransition(); } } if (mTouchModeReset != null) { removeCallbacks(mTouchModeReset); } mTouchModeReset = new Runnable() { @Override public void run() { mTouchMode = TOUCH_MODE_REST; setPressed(false); child.setPressed(false); if (!mDataChanged) { performClick.run(); } mTouchModeReset = null; } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; } case TOUCH_MODE_DRAGGING: if (contentFits()) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity; if (mIsVertical) { velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); } else { velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId); } if (Math.abs(velocity) >= mFlingVelocity) { mTouchMode = TOUCH_MODE_FLINGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mScroller.fling(0, 0, (int) (mIsVertical ? 0 : velocity), (int) (mIsVertical ? velocity : 0), (mIsVertical ? 0 : Integer.MIN_VALUE), (mIsVertical ? 0 : Integer.MAX_VALUE), (mIsVertical ? Integer.MIN_VALUE : 0), (mIsVertical ? Integer.MAX_VALUE : 0)); mLastTouchPos = 0; needsInvalidate = true; } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } cancelCheckForTap(); cancelCheckForLongPress(); setPressed(false); if (mStartEdge != null && mEndEdge != null) { needsInvalidate |= mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; } } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:com.runmit.sweedee.view.DirectListView.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!isEnabled()) { // A disabled view that is clickable still consumes the touch // events, it just doesn't respond to them. return isClickable() || isLongClickable(); }//from w w w . j ava2 s . co m if (!mIsAttached) { return false; } boolean needsInvalidate = false; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: { if (mDataChanged) { break; } mVelocityTracker.clear(); mScroller.abortAnimation(); final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); int motionPosition = pointToPosition((int) x, (int) y); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mDataChanged) { break; } if (mTouchMode == TOUCH_MODE_FLINGING) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); motionPosition = findMotionRowOrColumn((int) mLastTouchPos); return true; } else if (mMotionPosition >= 0 && mAdapter.isEnabled(mMotionPosition)) { mTouchMode = TOUCH_MODE_DOWN; triggerCheckForTap(); } mMotionPosition = motionPosition; break; } case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: // Check if we have moved far enough that it looks more like a // scroll than a tap maybeStartScrolling(delta); break; case TOUCH_MODE_DRAGGING: case TOUCH_MODE_OVERSCROLL: mLastTouchPos = pos; maybeScroll(delta); break; } break; } case MotionEvent.ACTION_CANCEL: cancelCheckForTap(); mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } if (mStartEdge != null && mEndEdge != null) { needsInvalidate = mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; case MotionEvent.ACTION_UP: { switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: { final int motionPosition = mMotionPosition; final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final float y = ev.getY(); boolean inList = false; if (mIsVertical) { inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); } else { inList = y > getPaddingTop() && y < getHeight() - getPaddingBottom(); } if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { if (mTouchMode == TOUCH_MODE_DOWN) { cancelCheckForTap(); } else { cancelCheckForLongPress(); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setPressed(true); positionSelector(mMotionPosition, child); child.setPressed(true); if (mSelector != null) { Drawable d = mSelector.getCurrent(); if (d != null && d instanceof TransitionDrawable) { ((TransitionDrawable) d).resetTransition(); } } if (mTouchModeReset != null) { removeCallbacks(mTouchModeReset); } mTouchModeReset = new Runnable() { @Override public void run() { mTouchMode = TOUCH_MODE_REST; setPressed(false); child.setPressed(false); if (!mDataChanged) { performClick.run(); } mTouchModeReset = null; } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; } case TOUCH_MODE_DRAGGING: if (contentFits()) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity; if (mIsVertical) { velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); } else { velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId); } if (Math.abs(velocity) >= mFlingVelocity) { mTouchMode = TOUCH_MODE_FLINGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); Log.d(LOGTAG, "velocity=" + velocity); mScroller.fling(0, 0, (int) (mIsVertical ? 0 : velocity), (int) (mIsVertical ? velocity : 0), (mIsVertical ? 0 : Integer.MIN_VALUE), (mIsVertical ? 0 : Integer.MAX_VALUE), (mIsVertical ? Integer.MIN_VALUE : 0), (mIsVertical ? Integer.MAX_VALUE : 0)); mLastTouchPos = 0; needsInvalidate = true; } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } cancelCheckForTap(); cancelCheckForLongPress(); setPressed(false); if (mStartEdge != null && mEndEdge != null) { needsInvalidate |= mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; } } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }
From source file:com.aliasapps.seq.scroller.TwoWayView.java
@Override public boolean onTouchEvent(MotionEvent ev) { if (!isEnabled()) { // A disabled view that is clickable still consumes the touch // events, it just doesn't respond to them. return isClickable() || isLongClickable(); }/* w w w . ja v a2s. c o m*/ if (!mIsAttached) { return false; } boolean needsInvalidate = false; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); final int action = ev.getAction() & MotionEventCompat.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: { if (mDataChanged) { break; } mVelocityTracker.clear(); mScroller.abortAnimation(); final float x = ev.getX(); final float y = ev.getY(); mLastTouchPos = (mIsVertical ? y : x); int motionPosition = pointToPosition((int) x, (int) y); mActivePointerId = MotionEventCompat.getPointerId(ev, 0); mTouchRemainderPos = 0; if (mDataChanged) { break; } if (mTouchMode == TOUCH_MODE_FLINGING) { mTouchMode = TOUCH_MODE_DRAGGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); motionPosition = findMotionRowOrColumn((int) mLastTouchPos); return true; } else if (mMotionPosition >= 0 && mAdapter.isEnabled(mMotionPosition)) { mTouchMode = TOUCH_MODE_DOWN; triggerCheckForTap(); } mMotionPosition = motionPosition; break; } case MotionEvent.ACTION_MOVE: { final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId); if (index < 0) { Log.e(LOGTAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId + " - did TwoWayView receive an inconsistent " + "event stream?"); return false; } final float pos; if (mIsVertical) { pos = MotionEventCompat.getY(ev, index); } else { pos = MotionEventCompat.getX(ev, index); } if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } final float diff = pos - mLastTouchPos + mTouchRemainderPos; final int delta = (int) diff; mTouchRemainderPos = diff - delta; switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: // Check if we have moved far enough that it looks more like a // scroll than a tap maybeStartScrolling(delta); break; case TOUCH_MODE_DRAGGING: case TOUCH_MODE_OVERSCROLL: mLastTouchPos = pos; maybeScroll(delta); break; } break; } case MotionEvent.ACTION_CANCEL: cancelCheckForTap(); mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } if (mStartEdge != null && mEndEdge != null) { needsInvalidate = mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; case MotionEvent.ACTION_UP: { switch (mTouchMode) { case TOUCH_MODE_DOWN: case TOUCH_MODE_TAP: case TOUCH_MODE_DONE_WAITING: { final int motionPosition = mMotionPosition; final View child = getChildAt(motionPosition - mFirstPosition); final float x = ev.getX(); final float y = ev.getY(); boolean inList = false; if (mIsVertical) { inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight(); } else { inList = y > getPaddingTop() && y < getHeight() - getPaddingBottom(); } if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { if (mTouchMode == TOUCH_MODE_DOWN) { cancelCheckForTap(); } else { cancelCheckForLongPress(); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setPressed(true); positionSelector(mMotionPosition, child); child.setPressed(true); if (mSelector != null) { Drawable d = mSelector.getCurrent(); if (d != null && d instanceof TransitionDrawable) { ((TransitionDrawable) d).resetTransition(); } } if (mTouchModeReset != null) { removeCallbacks(mTouchModeReset); } mTouchModeReset = new Runnable() { @Override public void run() { mTouchMode = TOUCH_MODE_REST; setPressed(false); child.setPressed(false); if (!mDataChanged) { performClick.run(); } mTouchModeReset = null; } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; } case TOUCH_MODE_DRAGGING: if (contentFits()) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final float velocity; if (mIsVertical) { velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId); } else { velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId); } if (Math.abs(velocity) >= mFlingVelocity) { mTouchMode = TOUCH_MODE_FLINGING; reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mScroller.fling(0, 0, (int) (mIsVertical ? 0 : velocity), (int) (mIsVertical ? velocity : 0), (mIsVertical ? 0 : Integer.MIN_VALUE), (mIsVertical ? 0 : Integer.MAX_VALUE), (mIsVertical ? Integer.MIN_VALUE : 0), (mIsVertical ? Integer.MAX_VALUE : 0)); mLastTouchPos = 0; needsInvalidate = true; } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } cancelCheckForTap(); cancelCheckForLongPress(); setPressed(false); if (mStartEdge != null && mEndEdge != null) { needsInvalidate |= mStartEdge.onRelease() | mEndEdge.onRelease(); } recycleVelocityTracker(); break; } } if (needsInvalidate) { ViewCompat.postInvalidateOnAnimation(this); } return true; }