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

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

Introduction

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

Prototype

public static float getY(MotionEvent event, int pointerIndex) 

Source Link

Document

Call MotionEvent#getY(int) .

Usage

From source file:com.cmad.swipe.SwipeRefreshLayout.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    ensureTarget();/* w  w  w.  j a  v a  2  s. c o  m*/

    final int action = MotionEventCompat.getActionMasked(ev);

    if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
        mReturningToStart = false;
    }

    if (!isEnabled() || mReturningToStart || canChildScrollUp()) {
        // Fail fast if we're not in a state where a swipe is possible
        return false;
    }

    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mLastMotionY = mInitialMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsBeingDragged = false;
        speedLimited = false;
        alreadyTestSpeed = false;
        mCurrPercentage = 0;
        mIsPulling = false;
        mCanRefreshing = false;
        if (vTracker == null) {
            vTracker = VelocityTracker.obtain();
        } else {
            vTracker.clear();
        }
        vTracker.addMovement(ev);
        break;

    case MotionEvent.ACTION_MOVE:

        if (mActivePointerId == INVALID_POINTER) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id.");
            return false;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }
        if (!alreadyTestSpeed) {
            vTracker.addMovement(ev);
            vTracker.computeCurrentVelocity(1000);
            if (vTracker.getYVelocity() > 120) {
                speedLimited = true;
                return false;
            }
            alreadyTestSpeed = true;
        } else {
            if (speedLimited)
                return false;
        }

        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = y - mInitialMotionY;
        if (yDiff > mTouchSlop) {
            mLastMotionY = y;
            mIsBeingDragged = true;

        }
        break;

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
        mIsBeingDragged = false;
        mCurrPercentage = 0;
        mActivePointerId = INVALID_POINTER;
        break;
    }

    return mIsBeingDragged;
}

From source file:com.nao20010128nao.RSRL.SwipeRefreshLayout.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);

    if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
        mReturningToStart = false;//ww  w.  j a  v a 2  s. co m
    }

    if (!isEnabled() || mReturningToStart || canChildScrollUp() || ev.getY() < mTarget.getTop()
            || ev.getY() > mTarget.getBottom()) {
        // Fail fast if we're not in a state where a swipe is possible
        // This includes if the swipe it outside mTarget
        touchEventFailFast();
        return false;
    }

    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mInitialTargetY = mTarget.getTop();
        mLastMotionY = mInitialMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsBeingDragged = false;
        mCurrPercentage = 0;
        break;

    case MotionEvent.ACTION_MOVE:
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }

        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = y - mInitialMotionY;

        if (!mIsBeingDragged && yDiff > mTouchSlop) {
            mIsBeingDragged = true;
        }

        if (mIsBeingDragged) {
            // User velocity passed min velocity; trigger a refresh
            if (yDiff > mDistanceToTriggerSync) {
                // User movement passed distance; trigger a refresh
                startRefresh();
            } else {
                moveSpinner(yDiff);
            }
            mLastMotionY = y;
        }
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionY = MotionEventCompat.getY(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
        touchEventFailFast();
        return false;
    }

    return true;
}

From source file:com.hxqc.mall.core.views.CustomScrollView.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    /*/*from  www.  jav a2s.  co  m*/
     * This method JUST determines whether we want to intercept the motion.
     * If we return true, onMotionEvent will be called and we do the actual
     * scrolling there.
     */

    /*
    * Shortcut the most recurring case: the user is in the dragging
    * state and he is moving his finger.  We want to intercept this
    * motion.
    */
    final int action = ev.getAction();
    if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) {
        DebugLog.d("CustomScrollView", "one" + ev.getX());
        return true;
    }

    /*
     * Don't try to intercept touch if we can't scroll anyway.
     */
    if (getScrollY() == 0 && !ViewCompat.canScrollVertically(this, 1)) {
        DebugLog.d("CustomScrollView", "two" + ev.getX());
        return false;
    }

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_MOVE: {
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_MOVE" + ev.getX());

        /*
         * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
         * whether the user has moved far enough from his original down touch.
         */

        /*
        * Locally do absolute value. mLastMotionY is set to the y value
        * of the down event.
        */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on content.
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            DebugLog.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent");
            break;
        }

        final int y = (int) MotionEventCompat.getY(ev, pointerIndex);
        final int yDiff = Math.abs(y - mLastMotionY);
        if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) {
            mIsBeingDragged = true;
            mLastMotionY = y;
            initVelocityTrackerIfNotExists();
            mVelocityTracker.addMovement(ev);
            mNestedYOffset = 0;
            final ViewParent parent = getParent();
            if (parent != null) {
                parent.requestDisallowInterceptTouchEvent(true);
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_DOWN" + ev.getX());
        mDownX = ev.getX();
        final int y = (int) ev.getY();
        if (!inChild((int) ev.getX(), y)) {
            mIsBeingDragged = false;
            recycleVelocityTracker();
            break;
        }

        /*
         * Remember location of down touch.
         * ACTION_DOWN always refers to pointer index 0.
         */
        mLastMotionY = y;
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        initOrResetVelocityTracker();
        mVelocityTracker.addMovement(ev);
        /*
        * If being flinged and user touches the screen, initiate drag;
        * otherwise don't.  mScroller.isFinished should be false when
        * being flinged.
        */
        //                mIsBeingDragged = !mScroller.isFinished();
        startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL);
        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        moveX = ev.getX() - mDownX;
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_UP" + ev.getX());
        /* Release the drag */
        mIsBeingDragged = false;
        mActivePointerId = INVALID_POINTER;
        recycleVelocityTracker();
        stopNestedScroll();
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_POINTER_UP" + ev.getX());
        onSecondaryPointerUp(ev);
        break;
    }

    if (Math.abs(moveX) < 10 && ev.getAction() == MotionEvent.ACTION_UP) {
        DebugLog.d("CustomScrollView", "ON" + "\nmoveX" + moveX + "\nmD" + mDownX);
        moveX = 0.1f;
        return false;
    }

    DebugLog.d("CustomScrollView", mIsBeingDragged + "");
    /*
    * The only time we want to intercept motion events is if we are in the
    * drag mode.
    */
    return mIsBeingDragged;
}

From source file:com.telerik.examples.primitives.ExampleViewPagerBase.java

private float getMotionEventCompatCoordinate(MotionEvent ev, int pointerIndex) {
    if (this.orientation == LinearLayout.HORIZONTAL) {
        return MotionEventCompat.getX(ev, pointerIndex);
    }/* w  w  w .j av a 2  s .co m*/

    return MotionEventCompat.getY(ev, pointerIndex);
}

From source file:com.bolaa.medical.view.pulltorefreshgrid.StaggeredGridView.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    mVelocityTracker.addMovement(ev);/*from   ww  w . j a  va2  s.co  m*/
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    int motionPosition = pointToPosition((int) ev.getX(), (int) ev.getY());

    switch (action) {
    case MotionEvent.ACTION_DOWN:
        LogUtil.d("----------onTouch ACTION_DOWN-------------");
        isOnTouch = true;

        mVelocityTracker.clear();
        mScroller.abortAnimation();
        mLastTouchY = ev.getY();
        mLastTouchX = ev.getX();
        motionPosition = pointToPosition((int) mLastTouchX, (int) mLastTouchY);
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mTouchRemainderY = 0;

        if (mTouchMode != TOUCH_MODE_FLINGING && !mDataChanged && motionPosition >= 0
                && getAdapter().isEnabled(motionPosition)) {
            mTouchMode = TOUCH_MODE_DOWN;

            mBeginClick = true;

            if (mPendingCheckForTap == null) {
                mPendingCheckForTap = new CheckForTap();
            }

            postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout());
        }

        mMotionPosition = motionPosition;
        invalidate();
        break;

    case MotionEvent.ACTION_MOVE:
        //LogUtil.d("----------onTouch ACTION_MOVE-------------");
        float currentY = ev.getRawY();
        if (mMoveTouchListener != null) {
            if (currentY - mFirstDownY >= 30) {
                mMoveTouchListener.onMoveDown();
            } else if (mFirstDownY - currentY >= 30) {
                mMoveTouchListener.onMoveUp();
            }
        }

        mFirstDownY = currentY;

        isOnTouch = true;
        final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (index < 0) {
            Log.e(TAG, "onInterceptTouchEvent could not find pointer with id " + mActivePointerId
                    + " - did StaggeredGridView receive an inconsistent " + "event stream?");
            return false;
        }
        final float y = MotionEventCompat.getY(ev, index);
        final float dy = y - mLastTouchY + mTouchRemainderY;
        final int deltaY = (int) dy;
        mTouchRemainderY = dy - deltaY;

        if (Math.abs(dy) > mTouchSlop) {
            mTouchMode = TOUCH_MODE_DRAGGING;
        }

        if (mTouchMode == TOUCH_MODE_DRAGGING) {
            mLastTouchY = y;

            if (!trackMotionScroll(deltaY, true)) {
                // Break fling velocity if we impacted an edge.
                mVelocityTracker.clear();
            }
            reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL, getFirstVisiblePosition(),
                    getLastPosition());
        }

        updateSelectorState();

        if (mFlingListener != null) {
            mFlingListener.onTouchFling();
        }
        break;

    case MotionEvent.ACTION_CANCEL:
        // LogUtil.d("----------onTouch ACTION_CANCEL-------------");
        isOnTouch = false;

        mTouchMode = TOUCH_MODE_IDLE;
        reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                getLastPosition());
        updateSelectorState();
        setPressed(false);
        View motionView = this.getChildAt(mMotionPosition - mFirstPosition);
        if (motionView != null) {
            motionView.setPressed(false);
        }
        final Handler handler = getHandler();
        if (handler != null) {
            handler.removeCallbacks(mPendingCheckForLongPress);
        }

        if (mTopEdge != null) {
            mTopEdge.onRelease();
            mBottomEdge.onRelease();
        }

        mTouchMode = TOUCH_MODE_IDLE;
        reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                getLastPosition());

        break;

    case MotionEvent.ACTION_UP: {

        //LogUtil.d("----------onTouch ACTION_UP-------------");
        // LogUtil.d("TAG---------------onTouch ACTION_UP finish-----------" + mScroller.isFinished());
        isOnTouch = false;
        mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
        final float velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId);
        final int prevTouchMode = mTouchMode;

        if (Math.abs(velocity) > mFlingVelocity) { // TODO
            mTouchMode = TOUCH_MODE_FLINGING;
            mIsFling = true;
            mScroller.fling(0, 0, 0, (int) velocity, 0, 0, Integer.MIN_VALUE, Integer.MAX_VALUE);
            mLastTouchY = 0;
            reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING, getFirstVisiblePosition(),
                    getLastPosition());
            invalidate();
        } else {
            mIsFling = true;
            mTouchMode = TOUCH_MODE_IDLE;
            reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                    getLastPosition());
        }

        if (!mDataChanged && mAdapter.isEnabled(motionPosition)) {
            // TODO : handle
            mTouchMode = TOUCH_MODE_TAP;
        } else {
            mTouchMode = TOUCH_MODE_REST;
            reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                    getLastPosition());
        }

        switch (prevTouchMode) {
        case TOUCH_MODE_DOWN:
        case TOUCH_MODE_TAP:
        case TOUCH_MODE_DONE_WAITING:
            final View child = getChildAt(motionPosition - mFirstPosition);
            final float x = ev.getX();
            final boolean inList = x > getPaddingLeft() && x < getWidth() - getPaddingRight();
            if (child != null && !child.hasFocusable() && inList) {
                if (mTouchMode != TOUCH_MODE_DOWN) {
                    child.setPressed(false);
                }

                if (mPerformClick == null) {
                    invalidate();
                    mPerformClick = new PerformClick();
                }

                final PerformClick performClick = mPerformClick;
                performClick.mClickMotionPosition = motionPosition;
                performClick.rememberWindowAttachCount();

                if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) {
                    final Handler handlerTouch = getHandler();
                    if (handlerTouch != null) {
                        handlerTouch.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? mPendingCheckForTap
                                : mPendingCheckForLongPress);
                    }

                    if (!mDataChanged && mAdapter.isEnabled(motionPosition)) {
                        mTouchMode = TOUCH_MODE_TAP;

                        layoutChildren(mDataChanged);
                        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;
                                reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE,
                                        getFirstVisiblePosition(), getLastPosition());
                                child.setPressed(false);
                                setPressed(false);
                                if (!mDataChanged) {
                                    performClick.run();
                                }
                            }
                        };
                        postDelayed(mTouchModeReset, ViewConfiguration.getPressedStateDuration());

                    } else {
                        mTouchMode = TOUCH_MODE_REST;
                        reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                                getLastPosition());
                    }
                    return true;
                } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) {
                    performClick.run();
                }
            }

            mTouchMode = TOUCH_MODE_REST;
            reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE, getFirstVisiblePosition(),
                    getLastPosition());
        }

        mBeginClick = false;

        updateSelectorState();
    }
        break;
    }

    return true;
}

From source file:com.hxqc.mall.thirdshop.views.CustomScrollView.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    /*//from w w  w  . j  a  v a2 s. c  o m
     * This method JUST determines whether we want to intercept the motion.
     * If we return true, onMotionEvent will be called and we do the actual
     * scrolling there.
     */

    /*
    * Shortcut the most recurring case: the user is in the dragging
    * state and he is moving his finger.  We want to intercept this
    * motion.
    */
    final int action = ev.getAction();
    if ((action == MotionEvent.ACTION_MOVE) && (mIsBeingDragged)) {
        DebugLog.d("CustomScrollView", "one" + ev.getX());
        return true;
    }

    /*
     * Don't try to intercept touch if we can't scroll anyway.
     */
    if (getScrollY() == 0 && !ViewCompat.canScrollVertically(this, 1)) {
        DebugLog.d("CustomScrollView", "two" + ev.getX());
        return false;
    }

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_MOVE: {
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_MOVE" + ev.getX());

        /*
         * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
         * whether the user has moved far enough from his original down touch.
         */

        /*
        * Locally do absolute value. mLastMotionY is set to the y value
        * of the down event.
        */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on content.
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        if (pointerIndex == -1) {
            DebugLog.e(TAG, "Invalid pointerId=" + activePointerId + " in onInterceptTouchEvent");
            break;
        }

        final int y = (int) MotionEventCompat.getY(ev, pointerIndex);
        final int yDiff = Math.abs(y - mLastMotionY);
        if (yDiff > mTouchSlop && (getNestedScrollAxes() & ViewCompat.SCROLL_AXIS_VERTICAL) == 0) {
            mIsBeingDragged = true;
            mLastMotionY = y;
            initVelocityTrackerIfNotExists();
            mVelocityTracker.addMovement(ev);
            mNestedYOffset = 0;
            final ViewParent parent = getParent();
            if (parent != null) {
                parent.requestDisallowInterceptTouchEvent(true);
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_DOWN" + ev.getX());
        mDownX = ev.getX();
        final int y = (int) ev.getY();
        if (!inChild((int) ev.getX(), y)) {
            mIsBeingDragged = false;
            recycleVelocityTracker();
            break;
        }

        /*
         * Remember location of down touch.
         * ACTION_DOWN always refers to pointer index 0.
         */
        mLastMotionY = y;
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        initOrResetVelocityTracker();
        mVelocityTracker.addMovement(ev);
        /*
        * If being flinged and user touches the screen, initiate drag;
        * otherwise don't.  mScroller.isFinished should be false when
        * being flinged.
        */
        //                mIsBeingDragged = !mScroller.isFinished();
        startNestedScroll(ViewCompat.SCROLL_AXIS_VERTICAL);
        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        moveX = ev.getX() - mDownX;
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_UP" + ev.getX());
        /* Release the drag */
        mIsBeingDragged = false;
        mActivePointerId = INVALID_POINTER;
        recycleVelocityTracker();
        stopNestedScroll();
        break;
    case MotionEventCompat.ACTION_POINTER_UP:
        DebugLog.d("CustomScrollView", mIsBeingDragged + "ACTION_POINTER_UP" + ev.getX());
        onSecondaryPointerUp(ev);
        break;
    default:
        break;
    }

    if (Math.abs(moveX) < 10 && ev.getAction() == MotionEvent.ACTION_UP) {
        DebugLog.d("CustomScrollView", "ON" + "\nmoveX" + moveX + "\nmD" + mDownX);
        moveX = 0.1f;
        return false;
    }

    DebugLog.d("CustomScrollView", mIsBeingDragged + "");
    /*
    * The only time we want to intercept motion events is if we are in the
    * drag mode.
    */
    return mIsBeingDragged;
}

From source file:com.hakerjack.experiments.CustomSwipeRefreshLayout.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);

    if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
        mReturningToStart = false;/*ww  w  .  j  av  a2 s .  com*/
    }

    if (!isEnabled() || mReturningToStart || canChildScrollUp()) {
        // Fail fast if we're not in a state where a swipe is possible
        return false;
    }

    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsBeingDragged = false;
        break;

    case MotionEvent.ACTION_MOVE: {
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }

        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE;
        if (mIsBeingDragged) {
            float originalDragPercent = overscrollTop / mTotalDragDistance;
            if (originalDragPercent < 0) {
                return false;
            }
            float dragPercent = Math.min(1f, Math.abs(originalDragPercent));
            float extraOS = Math.abs(overscrollTop) - mTotalDragDistance;
            float slingshotDist = mUsingCustomStart ? mSpinnerFinalOffset - mOriginalOffsetTop
                    : mSpinnerFinalOffset;
            float tensionSlingshotPercent = Math.max(0, Math.min(extraOS, slingshotDist * 2) / slingshotDist);
            float tensionPercent = (float) ((tensionSlingshotPercent / 4)
                    - Math.pow((tensionSlingshotPercent / 4), 2)) * 2f;
            float extraMove = (slingshotDist) * tensionPercent * 2;

            int targetY = mOriginalOffsetTop + (int) ((slingshotDist * dragPercent) + extraMove);
            // where 1.0f is a full circle
            if (mSpinner.getVisibility() != View.VISIBLE) {
                mSpinner.setVisibility(View.VISIBLE);
            }
            if (!mScale) {
                ViewCompat.setScaleX(mSpinner, 1f);
                ViewCompat.setScaleY(mSpinner, 1f);
            }
            // Animate spinner's alpha based on y position relative to max distance
            if (overscrollTop < mTotalDragDistance) {
                if (mScale) {
                    setAnimationProgress(overscrollTop / mTotalDragDistance);
                }
                float overScrollTopToShow = overscrollTop - mHideSpinnerDistance;
                float progress;
                if (overScrollTopToShow > 0) {
                    progress = overScrollTopToShow / (mTotalDragDistance - mHideSpinnerDistance);
                } else {
                    progress = 0;
                }
                mSpinner.setSpinnerAlpha((int) (progress * MAX_ALPHA));
                mSpinner.animateUnderDraggableDistance(dragPercent, tensionPercent);
            }
            mSpinner.animateUnderDrag(dragPercent, tensionPercent);

            int offset = targetY - mCurrentTargetOffsetTop;
            setTargetOffsetTopAndBottom(offset, true /* requires update */);

        }
        break;
    }
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL: {
        if (mActivePointerId == INVALID_POINTER) {
            if (action == MotionEvent.ACTION_UP) {
                Log.e(LOG_TAG, "Got ACTION_UP event but don't have an active pointer id.");
            }
            return false;
        }
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE;
        mIsBeingDragged = false;
        if (overscrollTop > mTotalDragDistance) {
            setRefreshing(true, true /* notify */);
        } else {
            // cancel refresh
            mRefreshing = false;
            mSpinner.animateUnderDrag(0f, 0f);
            Animation.AnimationListener listener = null;
            if (!mScale) {
                listener = new Animation.AnimationListener() {

                    @Override
                    public void onAnimationStart(Animation animation) {
                    }

                    @Override
                    public void onAnimationEnd(Animation animation) {
                        if (!mScale) {
                            startScaleDownAnimation(null);
                        }
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {
                    }

                };
            }
            animateOffsetToStartPosition(mCurrentTargetOffsetTop, listener);
        }
        mActivePointerId = INVALID_POINTER;
        return false;
    }
    }

    return true;
}

From source file:com.bluepixel.android.sgpool.ui.widget.SwipeRefreshLayout.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;
        mLastMotionY = MotionEventCompat.getY(ev, newPointerIndex);
        mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
    }/*from ww  w. j ava  2s  . c  o m*/
}

From source file:com.telerik.examples.primitives.ExampleViewPagerBase.java

private float getInvertedMotionEventCompatCoordinate(MotionEvent ev, int pointerIndex) {
    if (this.orientation == LinearLayout.VERTICAL) {
        return MotionEventCompat.getX(ev, pointerIndex);
    }/*from  w w w.j  a va 2s  .co m*/

    return MotionEventCompat.getY(ev, pointerIndex);
}

From source file:de.uni_weimar.mheinz.androidtouchscope.display.ScopeView.java

private boolean touchSelectPath(MotionEvent event) {
    final int pointerIndex = MotionEventCompat.getActionIndex(event);
    final float x = MotionEventCompat.getX(event, pointerIndex);
    final float y = MotionEventCompat.getY(event, pointerIndex);

    int hit = pathHitTest(x, y, 15f);
    if (hit == -1 && mSelectedPath == -1)
        return false;

    if (mSelectedPath == hit)
        mSelectedPath = -1;//from www  .j a  v  a  2s.c  om
    else
        mSelectedPath = hit;

    /*   mDrawableChan1.getPaint().clearShadowLayer();
       mDrawableChan1.getPaint().setStrokeWidth(1);
       mDrawableChan2.getPaint().clearShadowLayer();
       mDrawableChan2.getPaint().setStrokeWidth(1);
            
       switch(mSelectedPath)
       {
    case 1:
        mDrawableChan1.getPaint().setShadowLayer(10f,0f,0f,HostView.CHAN1_COLOR);
        mDrawableChan1.getPaint().setStrokeWidth(1.5f);
        break;
    case 2:
        mDrawableChan2.getPaint().setShadowLayer(10f,0f,0f,HostView.CHAN2_COLOR);
        mDrawableChan2.getPaint().setStrokeWidth(1.5f);
        break;
    default:
        break;
       }*/
    return true;
}