Example usage for android.support.v4.view MotionEventCompat getActionIndex

List of usage examples for android.support.v4.view MotionEventCompat getActionIndex

  1. HOME
  2. Java
  3. android
  4. android.support.v4.view.*
  5. MotionEventCompat
  6. getActionIndex

Introduction

In this page you can find the example usage for android.support.v4.view MotionEventCompat getActionIndex.

Prototype

public static int getActionIndex(MotionEvent event)

Source Link

Document

Call MotionEvent#getAction , returning only the pointer index portion

Usage

From source file:com.example.sky.test.view.ViewPager.java

private void onSecondaryPointerUp(MotionEvent ev) {
    final int pointerIndex = MotionEventCompat.getActionIndex(ev);
    final int pointerId = ev.getPointerId(pointerIndex);
    if (pointerId == mActivePointerId) {
        // This was our active pointer going up. Choose a new
        // active pointer and adjust accordingly.
        final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
        mLastMotionX = ev.getX(newPointerIndex);
        mActivePointerId = ev.getPointerId(newPointerIndex);
        if (mVelocityTracker != null) {
            mVelocityTracker.clear();//from w w  w. ja  v  a2s.  c  o  m
        }
    }
}

From source file:cn.androidy.materialdesignsample.ryanharterviewpager.ViewPager.java

private void onSecondaryPointerUp(MotionEvent ev) {
    final int pointerIndex = MotionEventCompat.getActionIndex(ev);
    final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
    if (pointerId == mActivePointerId) {
        // This was our active pointer going up. Choose a new
        // active pointer and adjust accordingly.
        final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
        mLastMotionX = MotionEventCompat.getX(ev, newPointerIndex);
        mLastMotionY = MotionEventCompat.getY(ev, newPointerIndex);
        mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        if (mVelocityTracker != null) {
            mVelocityTracker.clear();/* w  w  w .  jav  a  2  s  . com*/
        }
    }
}

From source file:cn.ismartv.tvrecyclerview.widget.RecyclerView.java

@Override
public boolean onInterceptTouchEvent(MotionEvent e) {
    if (mLayoutFrozen) {
        // When layout is frozen,  RV does not intercept the motion event.
        // A child view e.g. a button may still get the click.
        return false;
    }//from   w  w  w.ja  v  a  2s . c  o  m
    if (dispatchOnItemTouchIntercept(e)) {
        cancelTouch();
        return true;
    }

    if (mLayout == null) {
        return false;
    }

    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:
        if (mIgnoreMotionEventTillDown) {
            mIgnoreMotionEventTillDown = false;
        }
        mScrollPointerId = e.getPointerId(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);
        }

        // Clear the nested offsets
        mNestedOffsets[0] = mNestedOffsets[1] = 0;

        int nestedScrollAxis = ViewCompat.SCROLL_AXIS_NONE;
        if (canScrollHorizontally) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_HORIZONTAL;
        }
        if (canScrollVertically) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_VERTICAL;
        }
        startNestedScroll(nestedScrollAxis);
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN:
        mScrollPointerId = e.getPointerId(actionIndex);
        mInitialTouchX = mLastTouchX = (int) (e.getX(actionIndex) + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY(actionIndex) + 0.5f);
        break;

    case MotionEvent.ACTION_MOVE: {
        final int index = e.findPointerIndex(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) (e.getX(index) + 0.5f);
        final int y = (int) (e.getY(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) {
                setScrollState(SCROLL_STATE_DRAGGING);
            }
        }
    }
        break;

    case MotionEventCompat.ACTION_POINTER_UP: {
        onPointerUp(e);
    }
        break;

    case MotionEvent.ACTION_UP: {
        mVelocityTracker.clear();
        stopNestedScroll();
    }
        break;

    case MotionEvent.ACTION_CANCEL: {
        cancelTouch();
    }
    }
    return mScrollState == SCROLL_STATE_DRAGGING;
}

From source file:com.viewpagerindicator.MyDirectionalViewPager.java

private void onSecondaryPointerUp(MotionEvent ev) {
    final int pointerIndex = MotionEventCompat.getActionIndex(ev);
    final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
    if (pointerId == mActivePointerId) {
        // This was our active pointer going up. Choose a new
        // active pointer and adjust accordingly.
        final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
        if (mOrientation == HORIZONTAL) {
            mLastMotionX = MotionEventCompat.getX(ev, newPointerIndex);
        } else {/*w ww  .  java  2  s.c  om*/
            mLastMotionY = MotionEventCompat.getY(ev, newPointerIndex);
        }
        //            mLastMotionX = MotionEventCompat.getX(ev, newPointerIndex);
        mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        if (mVelocityTracker != null) {
            mVelocityTracker.clear();
        }
    }
}

From source file:android.improving.utils.views.cardsview.OrientedViewPager.java

private void onSecondaryPointerUp(MotionEvent ev) {
    final int pointerIndex = MotionEventCompat.getActionIndex(ev);
    final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
    if (pointerId == mActivePointerId) {
        // This was our active pointer going up. Choose a new
        // active pointer and adjust accordingly.
        final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
        if (mOrientation == Orientation.VERTICAL) {
            mLastMotionY = MotionEventCompat.getY(ev, newPointerIndex);
        } else {/*from   w w w  .  j  a va2 s  . co m*/
            mLastMotionX = MotionEventCompat.getX(ev, newPointerIndex);
        }
        mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        if (mVelocityTracker != null) {
            mVelocityTracker.clear();
        }
    }
}

From source file:cn.ismartv.tvrecyclerview.widget.RecyclerView.java

@Override
public boolean onTouchEvent(MotionEvent e) {
    if (mLayoutFrozen || mIgnoreMotionEventTillDown) {
        return false;
    }/* www.  j  a v  a  2  s. c  o  m*/
    if (dispatchOnItemTouch(e)) {
        cancelTouch();
        return true;
    }

    if (mLayout == null) {
        return false;
    }

    final boolean canScrollHorizontally = mLayout.canScrollHorizontally();
    final boolean canScrollVertically = mLayout.canScrollVertically();

    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    }
    boolean eventAddedToVelocityTracker = false;

    final MotionEvent vtev = MotionEvent.obtain(e);
    final int action = MotionEventCompat.getActionMasked(e);
    final int actionIndex = MotionEventCompat.getActionIndex(e);

    if (action == MotionEvent.ACTION_DOWN) {
        mNestedOffsets[0] = mNestedOffsets[1] = 0;
    }
    vtev.offsetLocation(mNestedOffsets[0], mNestedOffsets[1]);

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        mScrollPointerId = e.getPointerId(0);
        mInitialTouchX = mLastTouchX = (int) (e.getX() + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY() + 0.5f);

        int nestedScrollAxis = ViewCompat.SCROLL_AXIS_NONE;
        if (canScrollHorizontally) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_HORIZONTAL;
        }
        if (canScrollVertically) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_VERTICAL;
        }
        startNestedScroll(nestedScrollAxis);
    }
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        mScrollPointerId = e.getPointerId(actionIndex);
        mInitialTouchX = mLastTouchX = (int) (e.getX(actionIndex) + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY(actionIndex) + 0.5f);
    }
        break;

    case MotionEvent.ACTION_MOVE: {
        final int index = e.findPointerIndex(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) (e.getX(index) + 0.5f);
        final int y = (int) (e.getY(index) + 0.5f);
        int dx = mLastTouchX - x;
        int dy = mLastTouchY - y;

        if (dispatchNestedPreScroll(dx, dy, mScrollConsumed, mScrollOffset)) {
            dx -= mScrollConsumed[0];
            dy -= mScrollConsumed[1];
            vtev.offsetLocation(mScrollOffset[0], mScrollOffset[1]);
            // Updated the nested offsets
            mNestedOffsets[0] += mScrollOffset[0];
            mNestedOffsets[1] += mScrollOffset[1];
        }

        if (mScrollState != SCROLL_STATE_DRAGGING) {
            boolean startScroll = false;
            if (canScrollHorizontally && Math.abs(dx) > mTouchSlop) {
                if (dx > 0) {
                    dx -= mTouchSlop;
                } else {
                    dx += mTouchSlop;
                }
                startScroll = true;
            }
            if (canScrollVertically && Math.abs(dy) > mTouchSlop) {
                if (dy > 0) {
                    dy -= mTouchSlop;
                } else {
                    dy += mTouchSlop;
                }
                startScroll = true;
            }
            if (startScroll) {
                setScrollState(SCROLL_STATE_DRAGGING);
            }
        }

        if (mScrollState == SCROLL_STATE_DRAGGING) {
            mLastTouchX = x - mScrollOffset[0];
            mLastTouchY = y - mScrollOffset[1];

            if (scrollByInternal(canScrollHorizontally ? dx : 0, canScrollVertically ? dy : 0, vtev)) {
                getParent().requestDisallowInterceptTouchEvent(true);
            }
        }
    }
        break;

    case MotionEventCompat.ACTION_POINTER_UP: {
        onPointerUp(e);
    }
        break;

    case MotionEvent.ACTION_UP: {
        mVelocityTracker.addMovement(vtev);
        eventAddedToVelocityTracker = true;
        mVelocityTracker.computeCurrentVelocity(1000, mMaxFlingVelocity);
        final float xvel = canScrollHorizontally
                ? -VelocityTrackerCompat.getXVelocity(mVelocityTracker, mScrollPointerId)
                : 0;
        final float yvel = canScrollVertically
                ? -VelocityTrackerCompat.getYVelocity(mVelocityTracker, mScrollPointerId)
                : 0;
        if (!((xvel != 0 || yvel != 0) && fling((int) xvel, (int) yvel))) {
            setScrollState(SCROLL_STATE_IDLE);
        }
        resetTouch();
    }
        break;

    case MotionEvent.ACTION_CANCEL: {
        cancelTouch();
    }
        break;
    }

    if (!eventAddedToVelocityTracker) {
        mVelocityTracker.addMovement(vtev);
    }
    vtev.recycle();

    return true;
}

From source file:cn.ismartv.tvrecyclerview.widget.RecyclerView.java

private void onPointerUp(MotionEvent e) {
    final int actionIndex = MotionEventCompat.getActionIndex(e);
    if (e.getPointerId(actionIndex) == mScrollPointerId) {
        // Pick a new pointer to pick up the slack.
        final int newIndex = actionIndex == 0 ? 1 : 0;
        mScrollPointerId = e.getPointerId(newIndex);
        mInitialTouchX = mLastTouchX = (int) (e.getX(newIndex) + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY(newIndex) + 0.5f);
    }//from  w  ww .  j av a2s.  c  o  m
}

From source file:com.ferdi2005.secondgram.support.widget.RecyclerView.java

@Override
public boolean onTouchEvent(MotionEvent e) {
    if (mLayoutFrozen || mIgnoreMotionEventTillDown) {
        return false;
    }//w  w w.  j ava2 s. c om
    if (dispatchOnItemTouch(e)) {
        cancelTouch();
        return true;
    }

    if (mLayout == null) {
        return false;
    }

    final boolean canScrollHorizontally = mLayout.canScrollHorizontally();
    final boolean canScrollVertically = mLayout.canScrollVertically();

    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    }
    boolean eventAddedToVelocityTracker = false;

    final MotionEvent vtev = MotionEvent.obtain(e);
    final int action = MotionEventCompat.getActionMasked(e);
    final int actionIndex = MotionEventCompat.getActionIndex(e);

    if (action == MotionEvent.ACTION_DOWN) {
        mNestedOffsets[0] = mNestedOffsets[1] = 0;
    }
    vtev.offsetLocation(mNestedOffsets[0], mNestedOffsets[1]);

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        mScrollPointerId = e.getPointerId(0);
        mInitialTouchX = mLastTouchX = (int) (e.getX() + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY() + 0.5f);

        int nestedScrollAxis = ViewCompat.SCROLL_AXIS_NONE;
        if (canScrollHorizontally) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_HORIZONTAL;
        }
        if (canScrollVertically) {
            nestedScrollAxis |= ViewCompat.SCROLL_AXIS_VERTICAL;
        }
        startNestedScroll(nestedScrollAxis);
    }
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        mScrollPointerId = e.getPointerId(actionIndex);
        mInitialTouchX = mLastTouchX = (int) (e.getX(actionIndex) + 0.5f);
        mInitialTouchY = mLastTouchY = (int) (e.getY(actionIndex) + 0.5f);
    }
        break;

    case MotionEvent.ACTION_MOVE: {
        final int index = e.findPointerIndex(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) (e.getX(index) + 0.5f);
        final int y = (int) (e.getY(index) + 0.5f);
        int dx = mLastTouchX - x;
        int dy = mLastTouchY - y;

        if (dispatchNestedPreScroll(dx, dy, mScrollConsumed, mScrollOffset)) {
            dx -= mScrollConsumed[0];
            dy -= mScrollConsumed[1];
            vtev.offsetLocation(mScrollOffset[0], mScrollOffset[1]);
            // Updated the nested offsets
            mNestedOffsets[0] += mScrollOffset[0];
            mNestedOffsets[1] += mScrollOffset[1];
        }

        if (mScrollState != SCROLL_STATE_DRAGGING) {
            boolean startScroll = false;
            if (canScrollHorizontally && Math.abs(dx) > mTouchSlop) {
                if (dx > 0) {
                    dx -= mTouchSlop;
                } else {
                    dx += mTouchSlop;
                }
                startScroll = true;
            }
            if (canScrollVertically && Math.abs(dy) > mTouchSlop) {
                if (dy > 0) {
                    dy -= mTouchSlop;
                } else {
                    dy += mTouchSlop;
                }
                startScroll = true;
            }
            if (startScroll) {
                setScrollState(SCROLL_STATE_DRAGGING);
            }
        }

        if (mScrollState == SCROLL_STATE_DRAGGING) {
            mLastTouchX = x - mScrollOffset[0];
            mLastTouchY = y - mScrollOffset[1];

            if (scrollByInternal(canScrollHorizontally ? dx : 0, canScrollVertically ? dy : 0, vtev)) {
                getParent().requestDisallowInterceptTouchEvent(true);
            }
            if (mGapWorker != null && (dx != 0 || dy != 0)) {
                mGapWorker.postFromTraversal(this, dx, dy);
            }
        }
    }
        break;

    case MotionEventCompat.ACTION_POINTER_UP: {
        onPointerUp(e);
    }
        break;

    case MotionEvent.ACTION_UP: {
        mVelocityTracker.addMovement(vtev);
        eventAddedToVelocityTracker = true;
        mVelocityTracker.computeCurrentVelocity(1000, mMaxFlingVelocity);
        final float xvel = canScrollHorizontally
                ? -VelocityTrackerCompat.getXVelocity(mVelocityTracker, mScrollPointerId)
                : 0;
        final float yvel = canScrollVertically
                ? -VelocityTrackerCompat.getYVelocity(mVelocityTracker, mScrollPointerId)
                : 0;
        if (!((xvel != 0 || yvel != 0) && fling((int) xvel, (int) yvel))) {
            setScrollState(SCROLL_STATE_IDLE);
        }
        resetTouch();
    }
        break;

    case MotionEvent.ACTION_CANCEL: {
        cancelTouch();
    }
        break;
    }

    if (!eventAddedToVelocityTracker) {
        mVelocityTracker.addMovement(vtev);
    }
    vtev.recycle();

    return true;
}

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();
    }/*from w  w w .j  a  v  a2 s. c o  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;
    }

    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;
}