List of usage examples for android.view MotionEvent ACTION_POINTER_UP
int ACTION_POINTER_UP
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From source file:com.glview.widget.AbsListView.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(); }// ww w.j ava 2 s . c om if (mPositionScroller != null) { mPositionScroller.stop(); } if (mIsDetaching || !isAttachedToWindow()) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } startNestedScroll(SCROLL_AXIS_VERTICAL); if (mFastScroll != null) { boolean intercepted = mFastScroll.onTouchEvent(ev); if (intercepted) { return true; } } initVelocityTrackerIfNotExists(); final MotionEvent vtev = MotionEvent.obtain(ev); final int actionMasked = ev.getActionMasked(); if (actionMasked == MotionEvent.ACTION_DOWN) { mNestedYOffset = 0; } vtev.offsetLocation(0, mNestedYOffset); switch (actionMasked) { case MotionEvent.ACTION_DOWN: { onTouchDown(ev); break; } case MotionEvent.ACTION_MOVE: { onTouchMove(ev, vtev); break; } case MotionEvent.ACTION_UP: { onTouchUp(ev); break; } case MotionEvent.ACTION_CANCEL: { onTouchCancel(); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); final int x = mMotionX; final int y = mMotionY; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started final View child = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = child.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } case MotionEvent.ACTION_POINTER_DOWN: { // New pointers take over dragging duties final int index = ev.getActionIndex(); final int id = ev.getPointerId(index); final int x = (int) ev.getX(index); final int y = (int) ev.getY(index); mMotionCorrection = 0; mActivePointerId = id; mMotionX = x; mMotionY = y; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started final View child = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = child.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } } if (mVelocityTracker != null) { mVelocityTracker.addMovement(vtev); } vtev.recycle(); return true; }
From source file:com.example.libwidgettv.bak.AbsListView.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 ww. j ava 2s .co m*/ if (mFastScroller != null) { boolean intercepted = mFastScroller.onTouchEvent(ev); if (intercepted) { return true; } } final int action = ev.getAction(); View v; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { switch (mTouchMode) { case TOUCH_MODE_OVERFLING: { mFlingRunnable.endFling(); if (mPositionScroller != null) { mPositionScroller.stop(); } mTouchMode = TOUCH_MODE_OVERSCROLL; mMotionX = (int) ev.getX(); mMotionY = mLastY = (int) ev.getY(); mMotionCorrection = 0; mActivePointerId = ev.getPointerId(0); mDirection = 0; break; } default: { mActivePointerId = ev.getPointerId(0); final int x = (int) ev.getX(); final int y = (int) ev.getY(); int motionPosition = pointToPosition(x, y); if (!mDataChanged) { if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) && (getAdapter().isEnabled(motionPosition))) { // User clicked on an actual view (and was not stopping // a fling). // It might be a click or a scroll. Assume it is a click // until // proven otherwise mTouchMode = TOUCH_MODE_DOWN; // FIXME Debounce if (mPendingCheckForTap == null) { mPendingCheckForTap = new CheckForTap(); } postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); } else { if (mTouchMode == TOUCH_MODE_FLING) { // Stopped a fling. It is a scroll. createScrollingCache(); mTouchMode = TOUCH_MODE_SCROLL; mMotionCorrection = 0; motionPosition = findMotionRow(y); mFlingRunnable.flywheelTouch(); } } } if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); } mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mLastY = Integer.MIN_VALUE; break; } } // if (performButtonActionOnTouchDown(ev)) { // if (mTouchMode == TOUCH_MODE_DOWN) { // removeCallbacks(mPendingCheckForTap); // } // } break; } case MotionEvent.ACTION_MOVE: { int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int y = (int) ev.getY(pointerIndex); 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 startScrollIfNeeded(y); break; case TOUCH_MODE_SCROLL: case TOUCH_MODE_OVERSCROLL: scrollIfNeeded(y); break; } 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 boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final AbsListView.PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? mPendingCheckForTap : mPendingCheckForLongPress); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setSelectedPositionInt(mMotionPosition); layoutChildren(); child.setPressed(true); positionSelector(mMotionPosition, 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; child.setPressed(false); setPressed(false); if (!mDataChanged) { performClick.run(); } } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } return true; } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; case TOUCH_MODE_SCROLL: final int childCount = getChildCount(); if (childCount > 0) { final int firstChildTop = getChildAt(0).getTop(); final int lastChildBottom = getChildAt(childCount - 1).getBottom(); final int contentTop = mListPadding.top; final int contentBottom = getHeight() - mListPadding.bottom; if (mFirstPosition == 0 && firstChildTop >= contentTop && mFirstPosition + childCount < mItemCount && lastChildBottom <= getHeight() - contentBottom) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } else { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); // Fling if we have enough velocity and we aren't at a // boundary. // Since we can potentially overfling more than we can // overscroll, don't // allow the weird behavior where you can scroll to a // boundary then // fling further. if (Math.abs(initialVelocity) > mMinimumVelocity && !((mFirstPosition == 0 && firstChildTop == contentTop - mOverscrollDistance) || (mFirstPosition + childCount == mItemCount && lastChildBottom == contentBottom + mOverscrollDistance))) { if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mFlingRunnable.start(-initialVelocity); } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); if (mFlingRunnable != null) { mFlingRunnable.endFling(); } if (mPositionScroller != null) { mPositionScroller.stop(); } } } } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); if (Math.abs(initialVelocity) > mMinimumVelocity) { mFlingRunnable.startOverfling(-initialVelocity); } else { mFlingRunnable.startSpringback(); } break; } setPressed(false); // Need to redraw since we probably aren't drawing the selector // anymore invalidate(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); mActivePointerId = INVALID_POINTER; if (PROFILE_SCROLLING) { if (mScrollProfilingStarted) { Debug.stopMethodTracing(); mScrollProfilingStarted = false; } } break; } case MotionEvent.ACTION_CANCEL: { switch (mTouchMode) { case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } mFlingRunnable.startSpringback(); break; case TOUCH_MODE_OVERFLING: // Do nothing - let it play out. break; default: mTouchMode = TOUCH_MODE_REST; setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } clearScrollingCache(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); } mActivePointerId = INVALID_POINTER; break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); final int x = mMotionX; final int y = mMotionY; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } case MotionEvent.ACTION_POINTER_DOWN: { // New pointers take over dragging duties final int index = ev.getActionIndex(); final int id = ev.getPointerId(index); final int x = (int) ev.getX(index); final int y = (int) ev.getY(index); mMotionCorrection = 0; mActivePointerId = id; mMotionX = x; mMotionY = y; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } } return true; }
From source file:com.wb.launcher3.Page.java
public boolean handleMotionEvent(MotionEvent ev) { if (getChildCount() <= 0) { return false; }// www . j a v a 2 s .co m acquireVelocityTrackerAndAddMovement(ev); switch (MotionEvent.ACTION_MASK & ev.getAction()) { case MotionEvent.ACTION_POINTER_DOWN: if (ev.getPointerCount() <= 2) { if (!this.mScroller.isFinished()) { this.mScroller.abortAnimation(); } int index = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT; float px = ev.getX(index); mLastMotionX = px; mDownMotionX = px; mLastMotionY = ev.getY(index); mLastMotionXRemainder = 0.0F; mTotalMotionX = 0.0F; mActivePointerId = ev.getPointerId(index); mTouchState = TOUCH_STATE_SCROLLING; pageBeginMoving(); } break; case MotionEvent.ACTION_MOVE: if (mTouchState == TOUCH_STATE_SCROLLING) { int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex >= 0) { float x = ev.getX(pointerIndex); float deltaX = mLastMotionX + mLastMotionXRemainder - x; mTotalMotionX += Math.abs(deltaX); if (Math.abs(deltaX) >= 1.0F) { mTouchX += deltaX; mSmoothingTime = System.nanoTime() / NANOTIME_DIV; if (!mDeferScrollUpdate) { scrollBy((int) deltaX, 0); if (DEBUG) Log.d(TAG, "handleMotionEvent().Scrolling: " + deltaX); } else { invalidate(); } mLastMotionX = x; mLastMotionXRemainder = deltaX - (int) deltaX; } else { awakenScrollBars(); } } } else { determineScrollingStart(ev); } break; case MotionEvent.ACTION_POINTER_UP: if (ev.getPointerCount() > 2) { onOtherPointerUp(ev); break; } if (mTouchState == TOUCH_STATE_SCROLLING) { final int activePointerId = mActivePointerId; final int pointerIndex = ev.findPointerIndex(activePointerId); final float x = ev.getX(pointerIndex); final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); int velocityX = (int) velocityTracker.getXVelocity(activePointerId); final int deltaX = (int) (x - mDownMotionX); final int pageWidth = getPageAt(mCurrentPage).getMeasuredWidth(); boolean isSignificantMove = Math.abs(deltaX) > pageWidth * SIGNIFICANT_MOVE_THRESHOLD; mTotalMotionX += Math.abs(mLastMotionX + mLastMotionXRemainder - x); boolean isFling = mTotalMotionX > MIN_LENGTH_FOR_FLING && Math.abs(velocityX) > mFlingThresholdVelocity; boolean returnToOriginalPage = false; if (Math.abs(deltaX) > pageWidth * RETURN_TO_ORIGINAL_PAGE_THRESHOLD && Math.signum(velocityX) != Math.signum(deltaX) && isFling) { returnToOriginalPage = true; } if (TydtechConfig.CYCLE_ROLL_PAGES_ENABLED) { m_moveNextDeltaX = deltaX; m_isSignificantMoveNext = (!returnToOriginalPage && (isSignificantMove || isFling)); } int finalPage; if (((isSignificantMove && deltaX > 0 && !isFling) || (isFling && velocityX > 0)) && mCurrentPage > 0) { finalPage = returnToOriginalPage ? mCurrentPage : mCurrentPage - 1; snapToPageWithVelocity(finalPage, velocityX); } else if (((isSignificantMove && deltaX < 0 && !isFling) || (isFling && velocityX < 0)) && mCurrentPage < getChildCount() - 1) { finalPage = returnToOriginalPage ? mCurrentPage : mCurrentPage + 1; snapToPageWithVelocity(finalPage, velocityX); } else { snapToDestination(); } } else if (mTouchState == TOUCH_STATE_PREV_PAGE) { int nextPage = Math.max(0, mCurrentPage - 1); if (nextPage != mCurrentPage) { snapToPage(nextPage); } else { snapToDestination(); } } else if (mTouchState == TOUCH_STATE_NEXT_PAGE) { int nextPage = Math.min(getChildCount() - 1, mCurrentPage + 1); if (nextPage != mCurrentPage) { snapToPage(nextPage); } else { snapToDestination(); } } else { snapToDestination(); onUnhandledTap(ev); } mTouchState = TOUCH_STATE_REST; mActivePointerId = INVALID_POINTER; releaseVelocityTracker(); break; case MotionEvent.ACTION_CANCEL: if (mTouchState == TOUCH_STATE_SCROLLING) { snapToDestination(); } mTouchState = TOUCH_STATE_REST; mActivePointerId = INVALID_POINTER; releaseVelocityTracker(); break; } return true; }
From source file:com.glview.widget.AbsListView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { final int actionMasked = ev.getActionMasked(); View v;//from ww w. ja va2s .co m if (mPositionScroller != null) { mPositionScroller.stop(); } if (mIsDetaching || !isAttachedToWindow()) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { return true; } switch (actionMasked) { case MotionEvent.ACTION_DOWN: { int touchMode = mTouchMode; if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { mMotionCorrection = 0; return true; } final int x = (int) ev.getX(); final int y = (int) ev.getY(); mActivePointerId = ev.getPointerId(0); int motionPosition = findMotionRow(y); if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { // User clicked on an actual view (and was not stopping a fling). // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mTouchMode = TOUCH_MODE_DOWN; clearScrollingCache(); } mLastY = Integer.MIN_VALUE; initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); mNestedYOffset = 0; startNestedScroll(SCROLL_AXIS_VERTICAL); if (touchMode == TOUCH_MODE_FLING) { return true; } break; } case MotionEvent.ACTION_MOVE: { switch (mTouchMode) { case TOUCH_MODE_DOWN: int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int y = (int) ev.getY(pointerIndex); initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, null)) { return true; } break; } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: { mTouchMode = TOUCH_MODE_REST; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); stopNestedScroll(); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); break; } } return false; }
From source file:com.example.libwidgettv.bak.AbsListView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { int action = ev.getAction(); View v;// w w w.j ava 2s .c o m if (mFastScroller != null) { boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); if (intercepted) { return true; } } switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { int touchMode = mTouchMode; if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { mMotionCorrection = 0; return true; } final int x = (int) ev.getX(); final int y = (int) ev.getY(); mActivePointerId = ev.getPointerId(0); int motionPosition = findMotionRow(y); if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { // User clicked on an actual view (and was not stopping a // fling). // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mTouchMode = TOUCH_MODE_DOWN; clearScrollingCache(); } mLastY = Integer.MIN_VALUE; initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); if (touchMode == TOUCH_MODE_FLING) { return true; } break; } case MotionEvent.ACTION_MOVE: { switch (mTouchMode) { case TOUCH_MODE_DOWN: int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int y = (int) ev.getY(pointerIndex); initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); if (startScrollIfNeeded(y)) { return true; } break; } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: { mTouchMode = TOUCH_MODE_REST; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); break; } } return false; }
From source file:com.appunite.list.AbsHorizontalListView.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 ww w . jav a 2s . co m*/ if (mPositionScroller != null) { mPositionScroller.stop(); } if (!mIsAttached) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } final int action = ev.getAction(); View v; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { switch (mTouchMode) { case TOUCH_MODE_OVERFLING: { mFlingRunnable.endFling(); if (mPositionScroller != null) { mPositionScroller.stop(); } mTouchMode = TOUCH_MODE_OVERSCROLL; mMotionX = mLastX = (int) ev.getX(); mMotionY = (int) ev.getY(); mMotionCorrection = 0; mActivePointerId = ev.getPointerId(0); mDirection = 0; break; } default: { mActivePointerId = ev.getPointerId(0); final int x = (int) ev.getX(); final int y = (int) ev.getY(); int motionPosition = pointToPosition(x, y); if (!mDataChanged) { if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) && (getAdapter().isEnabled(motionPosition))) { // User clicked on an actual view (and was not stopping a fling). // It might be a click or a scroll. Assume it is a click until // proven otherwise mTouchMode = TOUCH_MODE_DOWN; // FIXME Debounce if (mPendingCheckForTap == null) { mPendingCheckForTap = new CheckForTap(); } postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); } else { if (mTouchMode == TOUCH_MODE_FLING) { // Stopped a fling. It is a scroll. createScrollingCache(); mTouchMode = TOUCH_MODE_SCROLL; mMotionCorrection = 0; motionPosition = findMotionCol(x); mFlingRunnable.flywheelTouch(); } } } if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalLeft = v.getLeft(); } mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mLastX = Integer.MIN_VALUE; break; } } if (performButtonActionOnTouchDownUnhide(ev)) { if (mTouchMode == TOUCH_MODE_DOWN) { removeCallbacks(mPendingCheckForTap); } } break; } case MotionEvent.ACTION_MOVE: { int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int x = (int) ev.getX(pointerIndex); if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } 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 startScrollIfNeeded(x); break; case TOUCH_MODE_SCROLL: case TOUCH_MODE_OVERSCROLL: scrollIfNeeded(x); break; } 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 y = ev.getY(); final boolean inList = y > mListPadding.top && y < getHeight() - mListPadding.bottom; if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final AbsHorizontalListView.PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? mPendingCheckForTap : mPendingCheckForLongPress); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setSelectedPositionInt(mMotionPosition); layoutChildren(); child.setPressed(true); positionSelector(mMotionPosition, 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() { mTouchModeReset = null; mTouchMode = TOUCH_MODE_REST; child.setPressed(false); setPressed(false); if (!mDataChanged) { performClick.run(); } } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } return true; } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; case TOUCH_MODE_SCROLL: final int childCount = getChildCount(); if (childCount > 0) { final int firstChildLeft = getChildAt(0).getLeft(); final int lastChildRight = getChildAt(childCount - 1).getRight(); final int contentLeft = mListPadding.left; final int contentRight = getWidth() - mListPadding.right; if (mFirstPosition == 0 && firstChildLeft >= contentLeft && mFirstPosition + childCount < mItemCount && lastChildRight <= getWidth() - contentRight) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } else { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) (velocityTracker.getXVelocity(mActivePointerId) * mVelocityScale); // Fling if we have enough velocity and we aren't at a boundary. // Since we can potentially overfling more than we can overscroll, don't // allow the weird behavior where you can scroll to a boundary then // fling further. if (Math.abs(initialVelocity) > mMinimumVelocity && !((mFirstPosition == 0 && firstChildLeft == contentLeft - mOverscrollDistance) || (mFirstPosition + childCount == mItemCount && lastChildRight == contentRight + mOverscrollDistance))) { if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mFlingRunnable.start(-initialVelocity); } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); if (mFlingRunnable != null) { mFlingRunnable.endFling(); } if (mPositionScroller != null) { mPositionScroller.stop(); } } } } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) velocityTracker.getXVelocity(mActivePointerId); reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); if (Math.abs(initialVelocity) > mMinimumVelocity) { mFlingRunnable.startOverfling(-initialVelocity); } else { mFlingRunnable.startSpringback(); } break; } setPressed(false); if (mEdgeGlowLeft != null) { mEdgeGlowLeft.onRelease(); mEdgeGlowRight.onRelease(); } // Need to redraw since we probably aren't drawing the selector anymore invalidate(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); mActivePointerId = INVALID_POINTER; if (PROFILE_SCROLLING) { if (mScrollProfilingStarted) { Debug.stopMethodTracing(); mScrollProfilingStarted = false; } } // FIXME not needed bacaues we could not implement strict span (j.m.) // if (mScrollStrictSpan != null) { // mScrollStrictSpan.finish(); // mScrollStrictSpan = null; // } break; } case MotionEvent.ACTION_CANCEL: { switch (mTouchMode) { case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } mFlingRunnable.startSpringback(); break; case TOUCH_MODE_OVERFLING: // Do nothing - let it play out. break; default: mTouchMode = TOUCH_MODE_REST; setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } clearScrollingCache(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); } if (mEdgeGlowLeft != null) { mEdgeGlowLeft.onRelease(); mEdgeGlowRight.onRelease(); } mActivePointerId = INVALID_POINTER; break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); final int x = mMotionX; final int y = mMotionY; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalLeft = v.getLeft(); mMotionPosition = motionPosition; } mLastX = x; break; } case MotionEvent.ACTION_POINTER_DOWN: { // New pointers take over dragging duties final int index = ev.getActionIndex(); final int id = ev.getPointerId(index); final int x = (int) ev.getX(index); final int y = (int) ev.getY(index); mMotionCorrection = 0; mActivePointerId = id; mMotionX = x; mMotionY = y; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalLeft = v.getLeft(); mMotionPosition = motionPosition; } mLastX = x; break; } } return true; }
From source file:com.wb.launcher3.Page.java
@Override public boolean dispatchTouchEvent(MotionEvent ev) { int action = ev.getAction() & MotionEvent.ACTION_MASK; mPointCount = ev.getPointerCount();//added by zxa 1018 for adjust brightness //Log.i("zwb", "zhangwuba ------ luancher dispatchTouchEvent"); boolean enable = (Settings.Secure.getInt(mContext.getContentResolver(), "tyd_gesture_launcher", 1) == 1); boolean gesture = false; if (mPointCount == 2) { int x1 = (int) ev.getX(0); int y1 = (int) ev.getY(0); int x2 = (int) ev.getX(1); int y2 = (int) ev.getY(1); x1Down = x1;//from w w w . j a v a2s . co m x2Down = x2; y1Down = y1; y2Down = y2; xyD = (int) FloatMath.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); //Log.i("zwb", "zhangwuba ------ xyD = " + xyD); } switch (action) { case MotionEvent.ACTION_DOWN: //Log.i("xyz", "ACTION_DOWN"); tempX = 0; tempY = 0; mOldY = ev.getY(); mOldX = ev.getX(); // mMode = DRAG; break; case MotionEvent.ACTION_POINTER_DOWN: mLastMultiDownDistance = getDistance(ev); //mMode = ZOOM; break; case MotionEvent.ACTION_UP: //added by zxa 1018 for multi touch panel adjust screen light start if (enable) { closebrightnessDialog(); } //added by zxa 1018 for multi touch panel adjust screen light end //mMode = NONE; break; case MotionEvent.ACTION_POINTER_UP: //added by zxa 1018 for multi touch panel adjust screen light start if (enable) { closebrightnessDialog(); } //mMode = NONE; break; case MotionEvent.ACTION_MOVE: int scrollLength = xyD - temp; temp = xyD; if (enable && Math.abs(scrollLength) < 5 && y1Down != (int) mOldY) { adjustBrightness(ev, mPointCount); } /* if (mMode == ZOOM) { double currentLength = getDistance(ev); float length = (float) (currentLength - mLastMultiDownDistance); if (length < SHOW_WORKSPACE_PREVIEW_THRESHOLD) { onMultiZoomIn(length); } else { onMultiZoomOut(length); } }*/ break; } /* if (mMode == ZOOM) { return true; }*/ return super.dispatchTouchEvent(ev); }
From source file:com.appunite.list.AbsListView.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. j av a2s. c om if (mPositionScroller != null) { mPositionScroller.stop(); } if (!mIsAttached) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } if (mFastScroller != null) { boolean intercepted = mFastScroller.onTouchEvent(ev); if (intercepted) { return true; } } final int action = ev.getAction(); View v; initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { switch (mTouchMode) { case TOUCH_MODE_OVERFLING: { mFlingRunnable.endFling(); if (mPositionScroller != null) { mPositionScroller.stop(); } mTouchMode = TOUCH_MODE_OVERSCROLL; mMotionX = (int) ev.getX(); mMotionY = mLastY = (int) ev.getY(); mMotionCorrection = 0; mActivePointerId = ev.getPointerId(0); mDirection = 0; break; } default: { mActivePointerId = ev.getPointerId(0); final int x = (int) ev.getX(); final int y = (int) ev.getY(); int motionPosition = pointToPosition(x, y); if (!mDataChanged) { if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) && (getAdapter().isEnabled(motionPosition))) { // User clicked on an actual view (and was not stopping a fling). // It might be a click or a scroll. Assume it is a click until // proven otherwise mTouchMode = TOUCH_MODE_DOWN; // FIXME Debounce if (mPendingCheckForTap == null) { mPendingCheckForTap = new CheckForTap(); } postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); } else { if (mTouchMode == TOUCH_MODE_FLING) { // Stopped a fling. It is a scroll. createScrollingCache(); mTouchMode = TOUCH_MODE_SCROLL; mMotionCorrection = 0; motionPosition = findMotionRow(y); mFlingRunnable.flywheelTouch(); } } } if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); } mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mLastY = Integer.MIN_VALUE; break; } } if (performButtonActionOnTouchDownUnhide(ev)) { if (mTouchMode == TOUCH_MODE_DOWN) { removeCallbacks(mPendingCheckForTap); } } break; } case MotionEvent.ACTION_MOVE: { int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int y = (int) ev.getY(pointerIndex); if (mDataChanged) { // Re-sync everything if data has been changed // since the scroll operation can query the adapter. layoutChildren(); } 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 startScrollIfNeeded(y); break; case TOUCH_MODE_SCROLL: case TOUCH_MODE_OVERSCROLL: scrollIfNeeded(y); break; } 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 boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; if (child != null && !child.hasFocusable() && inList) { if (mTouchMode != TOUCH_MODE_DOWN) { child.setPressed(false); } if (mPerformClick == null) { mPerformClick = new PerformClick(); } final AbsListView.PerformClick performClick = mPerformClick; performClick.mClickMotionPosition = motionPosition; performClick.rememberWindowAttachCount(); mResurrectToPosition = motionPosition; if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? mPendingCheckForTap : mPendingCheckForLongPress); } mLayoutMode = LAYOUT_NORMAL; if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { mTouchMode = TOUCH_MODE_TAP; setSelectedPositionInt(mMotionPosition); layoutChildren(); child.setPressed(true); positionSelector(mMotionPosition, 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() { mTouchModeReset = null; mTouchMode = TOUCH_MODE_REST; child.setPressed(false); setPressed(false); if (!mDataChanged) { performClick.run(); } } }; postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration()); } else { mTouchMode = TOUCH_MODE_REST; updateSelectorState(); } return true; } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { performClick.run(); } } mTouchMode = TOUCH_MODE_REST; updateSelectorState(); break; case TOUCH_MODE_SCROLL: final int childCount = getChildCount(); if (childCount > 0) { final int firstChildTop = getChildAt(0).getTop(); final int lastChildBottom = getChildAt(childCount - 1).getBottom(); final int contentTop = mListPadding.top; final int contentBottom = getHeight() - mListPadding.bottom; if (mFirstPosition == 0 && firstChildTop >= contentTop && mFirstPosition + childCount < mItemCount && lastChildBottom <= getHeight() - contentBottom) { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } else { final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); // Fling if we have enough velocity and we aren't at a boundary. // Since we can potentially overfling more than we can overscroll, don't // allow the weird behavior where you can scroll to a boundary then // fling further. if (Math.abs(initialVelocity) > mMinimumVelocity && !((mFirstPosition == 0 && firstChildTop == contentTop - mOverscrollDistance) || (mFirstPosition + childCount == mItemCount && lastChildBottom == contentBottom + mOverscrollDistance))) { if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); mFlingRunnable.start(-initialVelocity); } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); if (mFlingRunnable != null) { mFlingRunnable.endFling(); } if (mPositionScroller != null) { mPositionScroller.stop(); } } } } else { mTouchMode = TOUCH_MODE_REST; reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); } break; case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } final VelocityTracker velocityTracker = mVelocityTracker; velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); if (Math.abs(initialVelocity) > mMinimumVelocity) { mFlingRunnable.startOverfling(-initialVelocity); } else { mFlingRunnable.startSpringback(); } break; } setPressed(false); if (mEdgeGlowTop != null) { mEdgeGlowTop.onRelease(); mEdgeGlowBottom.onRelease(); } // Need to redraw since we probably aren't drawing the selector anymore invalidate(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); mActivePointerId = INVALID_POINTER; if (PROFILE_SCROLLING) { if (mScrollProfilingStarted) { Debug.stopMethodTracing(); mScrollProfilingStarted = false; } } // FIXME not needed bacaues we could not implement strict span (j.m.) // if (mScrollStrictSpan != null) { // mScrollStrictSpan.finish(); // mScrollStrictSpan = null; // } break; } case MotionEvent.ACTION_CANCEL: { switch (mTouchMode) { case TOUCH_MODE_OVERSCROLL: if (mFlingRunnable == null) { mFlingRunnable = new FlingRunnable(); } mFlingRunnable.startSpringback(); break; case TOUCH_MODE_OVERFLING: // Do nothing - let it play out. break; default: mTouchMode = TOUCH_MODE_REST; setPressed(false); View motionView = this.getChildAt(mMotionPosition - mFirstPosition); if (motionView != null) { motionView.setPressed(false); } clearScrollingCache(); final Handler handler = getHandler(); if (handler != null) { handler.removeCallbacks(mPendingCheckForLongPress); } recycleVelocityTracker(); } if (mEdgeGlowTop != null) { mEdgeGlowTop.onRelease(); mEdgeGlowBottom.onRelease(); } mActivePointerId = INVALID_POINTER; break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); final int x = mMotionX; final int y = mMotionY; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } case MotionEvent.ACTION_POINTER_DOWN: { // New pointers take over dragging duties final int index = MotionEventCompat.getActionIndex(ev); final int id = ev.getPointerId(index); final int x = (int) ev.getX(index); final int y = (int) ev.getY(index); mMotionCorrection = 0; mActivePointerId = id; mMotionX = x; mMotionY = y; final int motionPosition = pointToPosition(x, y); if (motionPosition >= 0) { // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionPosition = motionPosition; } mLastY = y; break; } } return true; }
From source file:com.appunite.list.AbsHorizontalListView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { int action = ev.getAction(); View v;/*from w w w . j a v a 2s .co m*/ if (mPositionScroller != null) { mPositionScroller.stop(); } if (!mIsAttached) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { int touchMode = mTouchMode; if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { mMotionCorrection = 0; return true; } final int x = (int) ev.getX(); final int y = (int) ev.getY(); mActivePointerId = ev.getPointerId(0); int motionPosition = findMotionCol(x); if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { // User clicked on an actual view (and was not stopping a fling). // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalLeft = v.getLeft(); mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mTouchMode = TOUCH_MODE_DOWN; clearScrollingCache(); } mLastX = Integer.MIN_VALUE; initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); if (touchMode == TOUCH_MODE_FLING) { return true; } break; } case MotionEvent.ACTION_MOVE: { switch (mTouchMode) { case TOUCH_MODE_DOWN: int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int x = (int) ev.getX(pointerIndex); initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); if (startScrollIfNeeded(x)) { return true; } break; } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: { mTouchMode = TOUCH_MODE_REST; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); break; } } return false; }
From source file:com.appunite.list.AbsListView.java
@Override public boolean onInterceptTouchEvent(MotionEvent ev) { int action = ev.getAction(); View v;//from w w w . j av a2 s. c om if (mPositionScroller != null) { mPositionScroller.stop(); } if (!mIsAttached) { // Something isn't right. // Since we rely on being attached to get data set change notifications, // don't risk doing anything where we might try to resync and find things // in a bogus state. return false; } if (mFastScroller != null) { boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); if (intercepted) { return true; } } switch (action & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: { int touchMode = mTouchMode; if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { mMotionCorrection = 0; return true; } final int x = (int) ev.getX(); final int y = (int) ev.getY(); mActivePointerId = ev.getPointerId(0); int motionPosition = findMotionRow(y); if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { // User clicked on an actual view (and was not stopping a fling). // Remember where the motion event started v = getChildAt(motionPosition - mFirstPosition); mMotionViewOriginalTop = v.getTop(); mMotionX = x; mMotionY = y; mMotionPosition = motionPosition; mTouchMode = TOUCH_MODE_DOWN; clearScrollingCache(); } mLastY = Integer.MIN_VALUE; initOrResetVelocityTracker(); mVelocityTracker.addMovement(ev); if (touchMode == TOUCH_MODE_FLING) { return true; } break; } case MotionEvent.ACTION_MOVE: { switch (mTouchMode) { case TOUCH_MODE_DOWN: int pointerIndex = ev.findPointerIndex(mActivePointerId); if (pointerIndex == -1) { pointerIndex = 0; mActivePointerId = ev.getPointerId(pointerIndex); } final int y = (int) ev.getY(pointerIndex); initVelocityTrackerIfNotExists(); mVelocityTracker.addMovement(ev); if (startScrollIfNeeded(y)) { return true; } break; } break; } case MotionEvent.ACTION_CANCEL: case MotionEvent.ACTION_UP: { mTouchMode = TOUCH_MODE_REST; mActivePointerId = INVALID_POINTER; recycleVelocityTracker(); reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); break; } case MotionEvent.ACTION_POINTER_UP: { onSecondaryPointerUp(ev); break; } } return false; }