Example usage for android.view MotionEvent ACTION_POINTER_INDEX_MASK

List of usage examples for android.view MotionEvent ACTION_POINTER_INDEX_MASK

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Introduction

In this page you can find the example usage for android.view MotionEvent ACTION_POINTER_INDEX_MASK.

Prototype

int ACTION_POINTER_INDEX_MASK

To view the source code for android.view MotionEvent ACTION_POINTER_INDEX_MASK.

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Document

Bits in the action code that represent a pointer index, used with #ACTION_POINTER_DOWN and #ACTION_POINTER_UP .

Usage

From source file:com.kaplandroid.colorbook.SlidingLayer.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    if (!mEnabled) {
        return false;
    }//from w  w w. j a va2  s.  com

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mIsDragging = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastY);
        if (xDiff > mTouchSlop && xDiff > yDiff && allowDraging(dx)) {
            mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
        } else if (yDiff > mTouchSlop) {
            mIsUnableToDrag = true;
        }
        break;

    case MotionEvent.ACTION_DOWN:
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEvent.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHere(ev)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:net.woggle.shackbrowse.SlideFrame.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    if (!mEnabled) {
        return false;
    }/*from   w ww. j  a v  a 2s.  co m*/
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mIsDragging = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastY);
        if (xDiff > mTouchSlop && xDiff > yDiff && allowDragging(dx)) {
            mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
            mOnInteractListener.onDrag();
        } else if (yDiff > mTouchSlop) {
            mIsUnableToDrag = true;
        }
        break;

    case MotionEvent.ACTION_DOWN:
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEvent.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHere(ev)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:org.i_chera.wolfensteineditor.fragments.LevelFragment.java

@Override
public boolean onTouch(View v, MotionEvent event) {
    int action = MotionEventCompat.getActionMasked(event);

    if (mScrollLockCheck.isChecked()) {
        // We also need to avoid interfering with the left drawer
        // Cancel DOWN if too left. But don't cancel MOVE if too left
        if (v == mCentralContent && !mDrawerLayout.isDrawerVisible(Gravity.LEFT)) {
            int count = MotionEventCompat.getPointerCount(event);
            for (int k = 0; k < count; ++k) {
                if (action != MotionEvent.ACTION_DOWN && action != MotionEventCompat.ACTION_POINTER_DOWN
                        || MotionEventCompat.getX(event, k) >= mTileSize) {
                    hitTileOnView(event, k, false);
                }/*from  w  w  w  . j av  a 2 s  . co m*/
            }
            return true;
        }
        return false;
    }
    if (v == mVerticalScroll) {
        // LOL trickery needed to scroll the below horiz view while this is
        // getting operated on
        if (mVerticalScroll.isScrollable() && mDoNotPropagateScroll == false) {
            mHorizontalScroll.setScrollingEnabled(true);
            mHorizontalScroll.dispatchTouchEvent(event);
            mHorizontalScroll.setScrollingEnabled(false);
        }
        if (action == MotionEvent.ACTION_DOWN || action == MotionEventCompat.ACTION_POINTER_DOWN) {
            mPressDown = true;
            //return true;
        } else if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_POINTER_UP) {
            if (mPressDown) {
                hitTileOnView(event, (event.getAction()
                        & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT,
                        true);
            }
        }
        return false;
    }
    return false;
}

From source file:net.osmand.plus.views.controls.DynamicListView.java

@Override
public boolean onTouchEvent(@NonNull MotionEvent event) {

    if (singleTapDetector.onTouchEvent(event)) {
        if (tag != null) {
            tag.onClick();/*from  ww w  . j  a va2  s .  co m*/
        }
        touchEventsCancelled();
        return super.onTouchEvent(event);
    }

    switch (event.getAction() & MotionEvent.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN:
        if (!mCellIsMobile && mHoverCell == null) {
            // Find the view that the user pressed their finger down on.
            View v = findViewAtPositionWithDragIconTag(getRootView(), (int) event.getRawX(),
                    (int) event.getRawY());

            // If the view contains a tag set to "DragIcon" class, it means that the user wants to
            // reorder the list item.
            if ((v != null) && (v.getTag() != null) && (v.getTag() instanceof DragIcon)) {
                mDownX = (int) event.getX();
                mDownY = (int) event.getY();
                mActivePointerId = event.getPointerId(0);
                mTotalOffset = 0;
                tag = (DragIcon) v.getTag();

                int position = pointToPosition(mDownX, mDownY);
                if (position != INVALID_POSITION) {
                    Object item = getAdapter().getItem(position);
                    if (mActiveItemsList == null || mActiveItemsList.contains(item)) {

                        int itemNum = position - getFirstVisiblePosition();
                        itemsSwapped = false;

                        View selectedView = getChildAt(itemNum);
                        mMobileItemId = getAdapter().getItemId(position);
                        mHoverCell = getAndAddHoverView(selectedView);
                        selectedView.setVisibility(INVISIBLE);

                        mCellIsMobile = true;
                        updateNeighborViewsForID(mMobileItemId);

                        if (dCallbacks != null) {
                            dCallbacks.onItemSwapping(position);
                        }
                    }
                }
            }
        }
        break;

    case MotionEvent.ACTION_MOVE:
        if (mActivePointerId == INVALID_POINTER_ID) {
            break;
        }

        int pointerIndex = event.findPointerIndex(mActivePointerId);

        mLastEventY = (int) event.getY(pointerIndex);
        int deltaY = mLastEventY - mDownY;

        if (mCellIsMobile && mHoverCell != null) {
            mHoverCellCurrentBounds.offsetTo(mHoverCellOriginalBounds.left,
                    mHoverCellOriginalBounds.top + deltaY + mTotalOffset);
            mHoverCell.setBounds(mHoverCellCurrentBounds);
            invalidate();

            handleCellSwitch();

            mIsMobileScrolling = false;
            handleMobileCellScroll();

            return false;
        }
        break;

    case MotionEvent.ACTION_UP:
        touchEventsEnded();
        break;

    case MotionEvent.ACTION_CANCEL:
        touchEventsCancelled();
        break;

    case MotionEvent.ACTION_POINTER_UP:
        /* If a multitouch event took place and the original touch dictating
         * the movement of the hover cell has ended, then the dragging event
         * ends and the hover cell is animated to its corresponding position
         * in the listview. */
        pointerIndex = (event.getAction()
                & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
        final int pointerId = event.getPointerId(pointerIndex);
        if (pointerId == mActivePointerId) {
            touchEventsEnded();
        }
        break;

    default:
        break;
    }

    return super.onTouchEvent(event);
}

From source file:co.vn.e_alarm.customwiget.SlidingLayer.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    if (!mEnabled) {
        return false;
    }/*from www . j  a va 2s . co m*/

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        /*
         * Return event touch to children view.
         */
        mIsDragging = false;
        mIsUnableToDrag = false;

        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float dy = y - mLastY;
        final float yDiff = Math.abs(y - mLastY);

        if (xDiff > mTouchSlop && xDiff > yDiff && allowDragingX(dx, mInitialX)) {
            // mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
        } else if (yDiff > mTouchSlop && yDiff > xDiff && allowDragingY(dy, mInitialY)) {
            // mIsDragging = true;
            mLastY = y;
            setDrawingCacheEnabled(true);
        }
        float matY = (float) Math.abs(corY - ev.getRawY());
        float matX = (float) Math.abs(corX - ev.getRawX());
        if (matY - 100 > 0) {
            mIsDragging = true;
            setDrawingCacheEnabled(true);
            // Dang di chuyen len
        } else if (matX - 100 > 0) {
            mIsDragging = false;
        }
        if (matY == 0) {
            setDrawingCacheEnabled(false);
        }

        /*   }else{
        mIsDragging = false;
        setDrawingCacheEnabled(true);
           }*/
        /* }else if(corX +150 > ev.getRawX()){
        mIsDragging = false;
        setDrawingCacheEnabled(true);
        }else if(corX +150 < ev.getRawX()){
        mIsDragging = false;
        setDrawingCacheEnabled(true);
        }*/
        // double corY = ev.getY();

        break;

    case MotionEvent.ACTION_DOWN:
        corX = ev.getRawX();
        corY = ev.getRawY();
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEventCompat.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = mInitialY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHereX(ev, mInitialX)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else if (allowSlidingFromHereY(ev, mInitialY)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:com.danilov.supermanga.core.view.SlidingLayer.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    if (!mEnabled) {
        return false;
    }//from  w w  w  . j  a  v  a2  s .com

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mIsDragging = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float dy = y - mLastY;
        final float yDiff = Math.abs(y - mLastY);

        if (xDiff > mTouchSlop && xDiff > yDiff && allowDragingX(dx, mInitialX)) {
            mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
        } else if (yDiff > mTouchSlop && yDiff > xDiff && allowDragingY(dy, mInitialY)) {
            mIsDragging = true;
            mLastY = y;
            setDrawingCacheEnabled(true);
        }
        break;

    case MotionEvent.ACTION_DOWN:
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEventCompat.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = mInitialY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHereX(ev, mInitialX)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else if (allowSlidingFromHereY(ev, mInitialY)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:bk.vinhdo.taxiads.utils.view.SlidingLayer.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    if (!mEnabled) {
        return false;
    }/*from  w  ww  .j  ava2  s  .c  om*/

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mIsDragging = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:

        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float dy = y - mLastY;
        final float yDiff = Math.abs(y - mLastY);

        if (mOnInteractListener != null) {
            boolean isControlled = mOnInteractListener.onInterceptActionMove(x, y);
            if (isControlled) {
                break;
            }
        }

        if (xDiff > mTouchSlop && xDiff > yDiff && allowDragingX(dx, mInitialX)) {
            mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
        } else if (yDiff > mTouchSlop && yDiff > xDiff && allowDragingY(dy, mInitialY)) {
            mIsDragging = true;
            mLastY = y;
            setDrawingCacheEnabled(true);
        }
        break;

    case MotionEvent.ACTION_DOWN:
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEventCompat.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = mInitialY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHereX(ev, mInitialX)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else if (allowSlidingFromHereY(ev, mInitialY)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:com.leeon.blank.widget.RangeBarNew.java

private void handleTouchDown(MotionEvent event) {
    final int actionIndex = (event.getAction()
            & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
    final int downX = (int) event.getX(actionIndex);
    final int downY = (int) event.getY(actionIndex);

    if (mLeftCursorRect.contains(downX, downY)) {
        if (mLeftHit) {
            return;
        }//from ww w .  j  av  a2 s.  co  m
        // If hit, change state of drawable, and record id of touch pointer.
        mLeftPointerLastX = downX;
        mLeftCursorBG.setState(mPressedEnableState);
        mLeftPointerID = event.getPointerId(actionIndex);
        mLeftHit = true;
        invalidate();
    } else if (mRightCursorRect.contains(downX, downY)) {
        if (mRightHit) {
            return;
        }
        mRightPointerLastX = downX;
        mRightCursorBG.setState(mPressedEnableState);
        mRightPointerID = event.getPointerId(actionIndex);
        mRightHit = true;
        invalidate();
    }
}

From source file:com.example.lansosdk.util.SlidingLayer.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    if (!mEnabled) {
        return false;
    }/*w ww  .ja va 2  s .  co m*/

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mIsDragging = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
            mVelocityTracker = null;
        }
        return false;
    }

    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsDragging) {
            return true;
        } else if (mIsUnableToDrag) {
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE:
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            mActivePointerId = INVALID_POINTER;
            break;
        }

        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float dy = y - mLastY;
        final float yDiff = Math.abs(y - mLastY);

        if (xDiff > mTouchSlop && xDiff > yDiff && allowDragingX(dx, mInitialX)) {
            // mIsDragging = true;
            mLastX = x;
            setDrawingCacheEnabled(true);
        } else if (yDiff > mTouchSlop && yDiff > xDiff && allowDragingY(dy, mInitialY)) {
            //  mIsDragging = true;
            mLastY = y;
            setDrawingCacheEnabled(true);
        }
        break;

    case MotionEvent.ACTION_DOWN:
        mActivePointerId = ev.getAction() & (Build.VERSION.SDK_INT >= 8 ? MotionEvent.ACTION_POINTER_INDEX_MASK
                : MotionEventCompat.ACTION_POINTER_INDEX_MASK);
        mLastX = mInitialX = MotionEventCompat.getX(ev, mActivePointerId);
        mLastY = mInitialY = MotionEventCompat.getY(ev, mActivePointerId);
        if (allowSlidingFromHereX(ev, mInitialX)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else if (allowSlidingFromHereY(ev, mInitialY)) {
            mIsDragging = false;
            mIsUnableToDrag = false;
            // If nobody else got the focus we use it to close the layer
            return super.onInterceptTouchEvent(ev);
        } else {
            mIsUnableToDrag = true;
        }
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    if (!mIsDragging) {
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        }
        mVelocityTracker.addMovement(ev);
    }

    return mIsDragging;
}

From source file:com.leeon.blank.widget.RangeBarNew.java

private void handleTouchUp(MotionEvent event) {
    final int actionIndex = (event.getAction()
            & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
    final int actionID = event.getPointerId(actionIndex);
    if (actionID == mLeftPointerID) {
        if (!mLeftHit) {
            return;
        }//  ww  w.ja v a  2s .c  om
        // If cursor between in tow mark locations, it should be located on the lower or higher one.
        if (getDiffByX(event.getX()) == 1) {
            // step 1:Calculate the offset with lower mark.
            final float offset = mLeftCursorIndex % 5;
            // step 2:Decide which mark will go to.
            if (offset < 2.5f) {
                // If left cursor want to be located on lower mark, go ahead
                // guys.
                // Because right cursor will never appear lower than the
                // left one.
                mLeftCursorNextIndex = (int) (mLeftCursorIndex / 5) * 5;
            } else {
                mLeftCursorNextIndex = (int) (mLeftCursorIndex / 5) * 5 + 1;
                // If left cursor want to be located on higher mark,
                // situation becomes a little complicated.
                // We should check that whether distance between left and
                // right cursor is less than 1, and next index of left
                // cursor is difference with current
                // of right one.
                if (Math.abs(mLeftCursorIndex - mRightCursorIndex) <= 5
                        && mLeftCursorNextIndex == mRightCursorNextIndex) {
                    // Left can not go to the higher, just to the lower one.
                    mLeftCursorNextIndex = (int) (mLeftCursorIndex / 5) * 5;
                }
            }
            // step 3: Move to.
            if (!mLeftScroller.computeScrollOffset()) {
                final int fromX = (int) (mLeftCursorIndex * mTinyPartLength);
                mLeftScroller.startScroll(fromX, 0, (int) (mLeftCursorNextIndex * mTinyPartLength - fromX), 0,
                        mDuration);
            }
            if (mLeftCursorNextIndex != mLeftCursorPreIndex) {
                mLeftCursorPreIndex = mLeftCursorNextIndex;
            }
        }

        // Reset values of parameters
        mLeftPointerLastX = 0;
        mLeftCursorBG.setState(mUnPressedEanabledState);
        mLeftPointerID = -1;
        mLeftHit = false;
        invalidate();
    } else if (actionID == mRightPointerID) {
        if (!mRightHit) {
            return;
        }

        if (getDiffByX(event.getX()) == 1) {
            final float offset = mRightCursorIndex % 5;
            if (offset > 2.5f) {
                mRightCursorNextIndex = (int) (mRightCursorIndex / 5) * 5 + 1;
            } else {
                mRightCursorNextIndex = (int) (mRightCursorIndex / 5) * 5;
                if (Math.abs(mLeftCursorIndex - mRightCursorIndex) <= 5
                        && mRightCursorNextIndex == mLeftCursorNextIndex) {
                    mRightCursorNextIndex = (int) (mRightCursorIndex / 5) * 5 + 1;
                }
            }
            if (!mRightScroller.computeScrollOffset()) {
                final int fromX = (int) (mRightCursorIndex * mTinyPartLength);
                mRightScroller.startScroll(fromX, 0, (int) (mRightCursorNextIndex * mTinyPartLength - fromX), 0,
                        mDuration);
            }
            if (mRightCursorNextIndex != mRightCursorPreIndex) {
                mRightCursorPreIndex = mRightCursorNextIndex;
            }
        }

        mRightPointerLastX = 0;
        mLeftCursorBG.setState(mUnPressedEanabledState);
        mRightPointerID = -1;
        mRightHit = false;
        invalidate();
    }
}