Example usage for android.view MotionEvent getY

List of usage examples for android.view MotionEvent getY

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Introduction

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

Prototype

public final float getY()

Source Link

Document

#getY(int) for the first pointer index (may be an arbitrary pointer identifier).

Usage

From source file:com.android.launcher3.BubbleTextView.java

@Override
public boolean onTouchEvent(MotionEvent event) {
    // Call the superclass onTouchEvent first, because sometimes it changes the state to
    // isPressed() on an ACTION_UP
    boolean result = super.onTouchEvent(event);

    // Check for a stylus button press, if it occurs cancel any long press checks.
    if (mStylusEventHelper.onMotionEvent(event)) {
        mLongPressHelper.cancelLongPress();
        result = true;/*from  w ww  .j av a 2  s.c om*/
    }

    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        // So that the pressed outline is visible immediately on setStayPressed(),
        // we pre-create it on ACTION_DOWN (it takes a small but perceptible amount of time
        // to create it)
        if (!mDeferShadowGenerationOnTouch && mPressedBackground == null) {
            mPressedBackground = mOutlineHelper.createMediumDropShadow(this);
        }

        // If we're in a stylus button press, don't check for long press.
        if (!mStylusEventHelper.inStylusButtonPressed()) {
            mLongPressHelper.postCheckForLongPress();
        }
        break;
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        // If we've touched down and up on an item, and it's still not "pressed", then
        // destroy the pressed outline
        if (!isPressed()) {
            mPressedBackground = null;
        }

        mLongPressHelper.cancelLongPress();
        break;
    case MotionEvent.ACTION_MOVE:
        if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
            mLongPressHelper.cancelLongPress();
        }
        break;
    }
    return result;
}

From source file:co.codecrunch.musicplayerlite.slidinguppanelhelper.ViewDragHelper.java

/**
 * Process a touch event received by the parent view. This method will
 * dispatch callback events as needed before returning. The parent view's
 * onTouchEvent implementation should call this.
 *
 * @param ev//from  w  w  w  .  j a  va  2  s. co m
 *            The touch event received by the parent view
 */
public void processTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    if (action == MotionEvent.ACTION_DOWN) {
        // Reset things for a new event stream, just in case we didn't get
        // the whole previous stream.
        cancel();
    }

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

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        final float x = ev.getX();
        final float y = ev.getY();
        final int pointerId = MotionEventCompat.getPointerId(ev, 0);
        final View toCapture = findTopChildUnder((int) x, (int) y);

        saveInitialMotion(x, y, pointerId);

        // Since the parent is already directly processing this touch event,
        // there is no reason to delay for a slop before dragging.
        // Start immediately if possible.
        tryCaptureViewForDrag(toCapture, pointerId);

        final int edgesTouched = mInitialEdgesTouched[pointerId];
        if ((edgesTouched & mTrackingEdges) != 0) {
            mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, actionIndex);

        saveInitialMotion(x, y, pointerId);

        // A ViewDragHelper can only manipulate one view at a time.
        if (mDragState == STATE_IDLE) {
            // If we're idle we can do anything! Treat it like a normal down
            // event.

            final View toCapture = findTopChildUnder((int) x, (int) y);
            tryCaptureViewForDrag(toCapture, pointerId);

            final int edgesTouched = mInitialEdgesTouched[pointerId];
            if ((edgesTouched & mTrackingEdges) != 0) {
                mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
            }
        } else if (isCapturedViewUnder((int) x, (int) y)) {
            // We're still tracking a captured view. If the same view is
            // under this
            // point, we'll swap to controlling it with this pointer
            // instead.
            // (This will still work if we're "catching" a settling view.)

            tryCaptureViewForDrag(mCapturedView, pointerId);
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        if (mDragState == STATE_DRAGGING) {
            final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, index);
            final float y = MotionEventCompat.getY(ev, index);
            final int idx = (int) (x - mLastMotionX[mActivePointerId]);
            final int idy = (int) (y - mLastMotionY[mActivePointerId]);

            dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy);

            saveLastMotion(ev);
        } else {
            // Check to see if any pointer is now over a draggable view.
            final int pointerCount = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int pointerId = MotionEventCompat.getPointerId(ev, i);
                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, i);
                final float dx = x - mInitialMotionX[pointerId];
                final float dy = y - mInitialMotionY[pointerId];

                reportNewEdgeDrags(dx, dy, pointerId);
                if (mDragState == STATE_DRAGGING) {
                    // Callback might have started an edge drag.
                    break;
                }

                final View toCapture = findTopChildUnder((int) x, (int) y);
                if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) {
                    break;
                }
            }
            saveLastMotion(ev);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) {
            // Try to find another pointer that's still holding on to the
            // captured view.
            int newActivePointer = INVALID_POINTER;
            final int pointerCount = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int id = MotionEventCompat.getPointerId(ev, i);
                if (id == mActivePointerId) {
                    // This one's going away, skip.
                    continue;
                }

                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, i);
                if (findTopChildUnder((int) x, (int) y) == mCapturedView
                        && tryCaptureViewForDrag(mCapturedView, id)) {
                    newActivePointer = mActivePointerId;
                    break;
                }
            }

            if (newActivePointer == INVALID_POINTER) {
                // We didn't find another pointer still touching the view,
                // release it.
                releaseViewForPointerUp();
            }
        }
        clearMotionHistory(pointerId);
        break;
    }

    case MotionEvent.ACTION_UP: {
        if (mDragState == STATE_DRAGGING) {
            releaseViewForPointerUp();
        }
        cancel();
        break;
    }

    case MotionEvent.ACTION_CANCEL: {
        if (mDragState == STATE_DRAGGING) {
            dispatchViewReleased(0, 0);
        }
        cancel();
        break;
    }
    }
}

From source file:cn.com.zzwfang.view.directionalviewpager.DirectionalViewPager.java

@Override
public boolean onTouchEvent(MotionEvent ev) {

    if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) {
        // Don't handle edge touches immediately -- they may actually belong to one of our
        // descendants.
        return false;
    }/*from w  w w.  ja v  a 2  s.c  om*/

    if (mAdapter == null || mAdapter.getCount() == 0) {
        // Nothing to present or scroll; nothing to touch.
        return false;
    }

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

    final int action = ev.getAction();

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN: {
        /*
         * If being flinged and user touches, stop the fling. isFinished
         * will be false if being flinged.
         */
        completeScroll();

        // Remember where the motion event started
        if (mOrientation == HORIZONTAL) {
            mLastMotionX = mInitialMotion = ev.getX();
        } else {
            mLastMotionY = mInitialMotion = ev.getY();
        }
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        break;
    }
    case MotionEvent.ACTION_MOVE:
        if (!mIsBeingDragged) {
            final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, pointerIndex);
            final float y = MotionEventCompat.getY(ev, pointerIndex);
            final float xDiff = Math.abs(x - mLastMotionX);
            final float yDiff = Math.abs(y - mLastMotionY);
            float primaryDiff;
            float secondaryDiff;

            if (mOrientation == HORIZONTAL) {
                primaryDiff = xDiff;
                secondaryDiff = yDiff;
            } else {
                primaryDiff = yDiff;
                secondaryDiff = xDiff;
            }

            if (DEBUG)
                Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);
            if (primaryDiff > mTouchSlop && primaryDiff > secondaryDiff) {
                if (DEBUG)
                    Log.v(TAG, "Starting drag!");
                mIsBeingDragged = true;
                if (mOrientation == HORIZONTAL) {
                    mLastMotionX = x;
                } else {
                    mLastMotionY = y;
                }
                setScrollState(SCROLL_STATE_DRAGGING);
                setScrollingCacheEnabled(true);
            }
        }
        if (mIsBeingDragged) {
            // Scroll to follow the motion event
            final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, activePointerIndex);
            final float y = MotionEventCompat.getY(ev, activePointerIndex);

            int size;
            float scroll;

            if (mOrientation == HORIZONTAL) {
                size = getWidth();
                scroll = getScrollX() + (mLastMotionX - x);
                mLastMotionX = x;
            } else {
                size = getHeight();
                scroll = getScrollY() + (mLastMotionY - y);
                mLastMotionY = y;
            }

            final float lowerBound = Math.max(0, (mCurItem - 1) * size);
            final float upperBound = Math.min(mCurItem + 1, mAdapter.getCount() - 1) * size;
            if (scroll < lowerBound) {
                scroll = lowerBound;
            } else if (scroll > upperBound) {
                scroll = upperBound;
            }
            if (mOrientation == HORIZONTAL) {
                // Don't lose the rounded component
                mLastMotionX += scroll - (int) scroll;
                scrollTo((int) scroll, getScrollY());
            } else {
                // Don't lose the rounded component
                mLastMotionY += scroll - (int) scroll;
                scrollTo(getScrollX(), (int) scroll);
            }
            if (mOnPageChangeListener != null) {
                final int position = (int) scroll / size;
                final int positionOffsetPixels = (int) scroll % size;
                final float positionOffset = (float) positionOffsetPixels / size;
                mOnPageChangeListener.onPageScrolled(position, positionOffset, positionOffsetPixels);
            }
        }
        break;
    case MotionEvent.ACTION_UP:
        if (mIsBeingDragged) {
            final VelocityTracker velocityTracker = mVelocityTracker;
            velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
            int initialVelocity;
            float lastMotion;
            int sizeOverThree;

            if (mOrientation == HORIZONTAL) {
                initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId);
                lastMotion = mLastMotionX;
                sizeOverThree = getWidth() / 3;
            } else {
                initialVelocity = (int) VelocityTrackerCompat.getYVelocity(velocityTracker, mActivePointerId);
                lastMotion = mLastMotionY;
                sizeOverThree = getHeight() / 3;
            }

            mPopulatePending = true;
            if ((Math.abs(initialVelocity) > mMinimumVelocity)
                    || Math.abs(mInitialMotion - lastMotion) >= sizeOverThree) {
                if (lastMotion > mInitialMotion) {
                    setCurrentItemInternal(mCurItem - 1, true, true);
                } else {
                    setCurrentItemInternal(mCurItem + 1, true, true);
                }
            } else {
                setCurrentItemInternal(mCurItem, true, true);
            }

            mActivePointerId = INVALID_POINTER;
            endDrag();
        }
        break;
    case MotionEvent.ACTION_CANCEL:
        if (mIsBeingDragged) {
            setCurrentItemInternal(mCurItem, true, true);
            mActivePointerId = INVALID_POINTER;
            endDrag();
        }
        break;
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        if (mOrientation == HORIZONTAL) {
            mLastMotionX = MotionEventCompat.getX(ev, index);
        } else {
            mLastMotionY = MotionEventCompat.getY(ev, index);
        }
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (mOrientation == HORIZONTAL) {
            mLastMotionX = MotionEventCompat.getX(ev, index);
        } else {
            mLastMotionY = MotionEventCompat.getY(ev, index);
        }
        break;
    }
    return true;
}

From source file:ca.co.rufus.androidboilerplate.ui.DebugDrawerLayout.java

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

    // "|" used deliberately here; both methods should be invoked.
    final boolean interceptForDrag = mLeftDragger.shouldInterceptTouchEvent(ev)
            | mRightDragger.shouldInterceptTouchEvent(ev);

    boolean interceptForTap = false;

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        final float x = ev.getX();
        final float y = ev.getY();
        mInitialMotionX = x;//from w  ww . j a v a  2  s . c o  m
        mInitialMotionY = y;
        if (mScrimOpacity > 0) {
            final View child = mLeftDragger.findTopChildUnder((int) x, (int) y);
            if (child != null && isContentView(child)) {
                interceptForTap = true;
            }
        }
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        // If we cross the touch slop, don't perform the delayed peek for an edge touch.
        if (mLeftDragger.checkTouchSlop(ViewDragHelper.DIRECTION_ALL)) {
            mLeftCallback.removeCallbacks();
            mRightCallback.removeCallbacks();
        }
        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP: {
        closeDrawers(true);
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
    }
    }

    return interceptForDrag || interceptForTap || hasPeekingDrawer() || mChildrenCanceledTouch;
}

From source file:keyboard.ecloga.com.eclogakeyboard.EclogaKeyboard.java

@Override
public boolean onTouch(View v, final MotionEvent event) {
    mGestureDetector.onTouchEvent(event);

    if (event.getPointerCount() > 1) {
        return true;
    }//from ww  w.j  a va2s .com

    switch (event.getAction() & MotionEvent.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN:
        mDownX = event.getX();
        mDownY = event.getY();
        isOnClick = true;
        break;
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (isOnClick) {
            swipe = false;
        }
        break;
    case MotionEvent.ACTION_MOVE:
        if (isOnClick && (Math.abs(mDownX - event.getX()) > 120 || Math.abs(mDownY - event.getY()) > 120)) {
            swipe = true;
            isOnClick = false;
        }
        break;
    default:
        break;
    }

    return false;
}

From source file:android.improving.utils.views.swipeback.ViewDragHelper.java

/**
 * Process a touch event received by the parent view. This method will
 * dispatch callback events as needed before returning. The parent view's
 * onTouchEvent implementation should call this.
 * //from  w ww.j  a v a2 s.  c om
 * @param ev
 *            The touch event received by the parent view
 */
public void processTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    if (action == MotionEvent.ACTION_DOWN) {
        // Reset things for a new event stream, just in case we didn't get
        // the whole previous stream.
        cancel();
    }

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

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        final float x = ev.getX();
        final float y = ev.getY();
        final int pointerId = MotionEventCompat.getPointerId(ev, 0);
        final View toCapture = findTopChildUnder((int) x, (int) y);

        saveInitialMotion(x, y, pointerId);

        // Since the parent is already directly processing this touch
        // event,
        // there is no reason to delay for a slop before dragging.
        // Start immediately if possible.
        tryCaptureViewForDrag(toCapture, pointerId);

        final int edgesTouched = mInitialEdgesTouched[pointerId];
        if ((edgesTouched & mTrackingEdges) != 0) {
            mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, actionIndex);

        saveInitialMotion(x, y, pointerId);

        // A ViewDragHelper can only manipulate one view at a time.
        if (mDragState == STATE_IDLE) {
            // If we're idle we can do anything! Treat it like a normal
            // down event.

            final View toCapture = findTopChildUnder((int) x, (int) y);
            tryCaptureViewForDrag(toCapture, pointerId);

            final int edgesTouched = mInitialEdgesTouched[pointerId];
            if ((edgesTouched & mTrackingEdges) != 0) {
                mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
            }
        } else if (isCapturedViewUnder((int) x, (int) y)) {
            // We're still tracking a captured view. If the same view is
            // under this
            // point, we'll swap to controlling it with this pointer
            // instead.
            // (This will still work if we're "catching" a settling
            // view.)

            tryCaptureViewForDrag(mCapturedView, pointerId);
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        if (mDragState == STATE_DRAGGING) {
            final int index = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, index);
            final float y = MotionEventCompat.getY(ev, index);
            final int idx = (int) (x - mLastMotionX[mActivePointerId]);
            final int idy = (int) (y - mLastMotionY[mActivePointerId]);

            dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy);

            saveLastMotion(ev);
        } else {
            // Check to see if any pointer is now over a draggable view.
            final int pointerCount = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int pointerId = MotionEventCompat.getPointerId(ev, i);
                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, i);
                final float dx = x - mInitialMotionX[pointerId];
                final float dy = y - mInitialMotionY[pointerId];

                reportNewEdgeDrags(dx, dy, pointerId);
                if (mDragState == STATE_DRAGGING) {
                    // Callback might have started an edge drag.
                    break;
                }

                final View toCapture = findTopChildUnder((int) x, (int) y);
                if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) {
                    break;
                }
            }
            saveLastMotion(ev);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) {
            // Try to find another pointer that's still holding on to
            // the captured view.
            int newActivePointer = INVALID_POINTER;
            final int pointerCount = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int id = MotionEventCompat.getPointerId(ev, i);
                if (id == mActivePointerId) {
                    // This one's going away, skip.
                    continue;
                }

                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, i);
                if (findTopChildUnder((int) x, (int) y) == mCapturedView
                        && tryCaptureViewForDrag(mCapturedView, id)) {
                    newActivePointer = mActivePointerId;
                    break;
                }
            }

            if (newActivePointer == INVALID_POINTER) {
                // We didn't find another pointer still touching the
                // view, release it.
                releaseViewForPointerUp();
            }
        }
        clearMotionHistory(pointerId);
        break;
    }

    case MotionEvent.ACTION_UP: {
        if (mDragState == STATE_DRAGGING) {
            releaseViewForPointerUp();
        }
        cancel();
        break;
    }

    case MotionEvent.ACTION_CANCEL: {
        if (mDragState == STATE_DRAGGING) {
            dispatchViewReleased(0, 0);
        }
        cancel();
        break;
    }
    }
}

From source file:android.support.v7.widget.helper.ItemTouchHelper.java

private View findChildView(MotionEvent event) {
    // first check elevated views, if none, then call RV
    final float x = event.getX();
    final float y = event.getY();
    if (mSelected != null) {
        final View selectedView = mSelected.itemView;
        if (hitTest(selectedView, x, y, mSelectedStartX + mDx, mSelectedStartY + mDy)) {
            return selectedView;
        }//from w w  w.j a  v a  2 s  . co  m
    }
    for (int i = mRecoverAnimations.size() - 1; i >= 0; i--) {
        final RecoverAnimation anim = mRecoverAnimations.get(i);
        final View view = anim.mViewHolder.itemView;
        if (hitTest(view, x, y, anim.mX, anim.mY)) {
            return view;
        }
    }
    return mRecyclerView.findChildViewUnder(x, y);
}

From source file:cn.bingoogolapple.swipebacklayout.BGASwipeBackLayout.java

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

    // Preserve the open state based on the last view that was touched.
    if (!mCanSlide && action == MotionEvent.ACTION_DOWN && getChildCount() > 1) {
        // After the first things will be slideable.
        final View secondChild = getChildAt(1);
        if (secondChild != null) {
            mPreservedOpenState = !mDragHelper.isViewUnder(secondChild, (int) ev.getX(), (int) ev.getY());
        }/*www .  ja v a  2s . co m*/
    }

    // ========================  START ========================
    if (!isSwipeBackEnable()) {
        mDragHelper.cancel();
        return super.onInterceptTouchEvent(ev);
    }
    // ========================  END ========================

    if (!mCanSlide || (mIsUnableToDrag && action != MotionEvent.ACTION_DOWN)) {
        mDragHelper.cancel();
        return super.onInterceptTouchEvent(ev);
    }

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mDragHelper.cancel();
        return false;
    }

    boolean interceptTap = false;

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        mIsUnableToDrag = false;
        final float x = ev.getX();
        final float y = ev.getY();
        mInitialMotionX = x;
        mInitialMotionY = y;

        if (mDragHelper.isViewUnder(mSlideableView, (int) x, (int) y) && isDimmed(mSlideableView)) {
            interceptTap = true;
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        final float x = ev.getX();
        final float y = ev.getY();
        final float adx = Math.abs(x - mInitialMotionX);
        final float ady = Math.abs(y - mInitialMotionY);
        final int slop = mDragHelper.getTouchSlop();
        if (adx > slop && ady > adx) {
            mDragHelper.cancel();
            mIsUnableToDrag = true;
            return false;
        }
    }
    }

    final boolean interceptForDrag = mDragHelper.shouldInterceptTouchEvent(ev);

    return interceptForDrag || interceptTap;
}

From source file:com.android.hcframe.DraggableGridViewPager.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    if (ev.getAction() == MotionEvent.ACTION_DOWN && ev.getEdgeFlags() != 0) {
        // Don't handle edge touches immediately -- they may actually belong to one of our
        // descendants.
        return false;
    }/*from  w  ww . j a v  a 2  s  . co m*/

    if (mPageCount <= 0) {
        // Nothing to present or scroll; nothing to touch.
        return false;
    }

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

    final int action = ev.getAction();
    boolean needsInvalidate = false;

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN: {
        mScroller.abortAnimation();
        // Remember where the motion event started
        mLastMotionX = mInitialMotionX = ev.getX();
        mLastMotionY = mInitialMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        HcLog.D("Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged
                + " mIsUnableToDrag=" + mIsUnableToDrag);

        if (!mIsBeingDragged && mScrollState == SCROLL_STATE_IDLE) {
            mLastPosition = getPositionByXY((int) mLastMotionX, (int) mLastMotionY);
        } else {
            mLastPosition = -1;
        }
        if (mLastPosition >= 0) {
            mLastDownTime = System.currentTimeMillis();
        } else {
            mLastDownTime = Long.MAX_VALUE;
        }
        HcLog.D("Down at mLastPosition=" + mLastPosition);
        mLastDragged = -1;
        break;
    }
    case MotionEvent.ACTION_MOVE: {
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float y = MotionEventCompat.getY(ev, pointerIndex);

        if (mLastDragged >= 0) {
            // change draw location of dragged visual
            final View v = getChildAt(mLastDragged);
            final int l = getScrollX() + (int) x - v.getWidth() / 2;
            final int t = getScrollY() + (int) y - v.getHeight() / 2;
            v.layout(l, t, l + v.getWidth(), t + v.getHeight());

            // check for new target hover
            if (mScrollState == SCROLL_STATE_IDLE) {
                final int target = getTargetByXY((int) x, (int) y);
                if (target != -1 && mLastTarget != target) {
                    animateGap(target);
                    mLastTarget = target;
                    HcLog.D("Moved to mLastTarget=" + mLastTarget);
                }
                // edge holding
                final int edge = getEdgeByXY((int) x, (int) y);
                if (mLastEdge == -1) {
                    if (edge != mLastEdge) {
                        mLastEdge = edge;
                        mLastEdgeTime = System.currentTimeMillis();
                    }
                } else {
                    if (edge != mLastEdge) {
                        mLastEdge = -1;
                    } else {
                        if ((System.currentTimeMillis() - mLastEdgeTime) >= EDGE_HOLD_DURATION) {
                            performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                            triggerSwipe(edge);
                            mLastEdge = -1;
                        }
                    }
                }
            }
        } else if (!mIsBeingDragged) {
            final float xDiff = Math.abs(x - mLastMotionX);
            final float yDiff = Math.abs(y - mLastMotionY);
            HcLog.D("Moved to " + x + "," + y + " diff=" + xDiff + "," + yDiff);

            if (xDiff > mTouchSlop && xDiff > yDiff) {
                HcLog.D("Starting drag!");
                mIsBeingDragged = true;
                requestParentDisallowInterceptTouchEvent(true);
                mLastMotionX = x - mInitialMotionX > 0 ? mInitialMotionX + mTouchSlop
                        : mInitialMotionX - mTouchSlop;
                mLastMotionY = y;
                setScrollState(SCROLL_STATE_DRAGGING);
                setScrollingCacheEnabled(true);
            }
        }
        // Not else! Note that mIsBeingDragged can be set above.
        if (mIsBeingDragged) {
            // Scroll to follow the motion event
            needsInvalidate |= performDrag(x);
        } else if (mLastPosition >= 0) {
            final int currentPosition = getPositionByXY((int) x, (int) y);
            HcLog.D("Moved to currentPosition=" + currentPosition);
            if (currentPosition == mLastPosition) {
                if ((System.currentTimeMillis() - mLastDownTime) >= LONG_CLICK_DURATION) {
                    if (onItemLongClick(currentPosition)) {
                        performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                        mLastDragged = mLastPosition;
                        requestParentDisallowInterceptTouchEvent(true);
                        mLastTarget = -1;
                        animateDragged();
                        mLastPosition = -1;
                    }
                    mLastDownTime = Long.MAX_VALUE;
                }
            } else {
                mLastPosition = -1;
            }
        }
        break;
    }
    case MotionEvent.ACTION_UP: {
        HcLog.D("Touch up!!!");
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float y = MotionEventCompat.getY(ev, pointerIndex);

        if (mLastDragged >= 0) {
            rearrange();
        } else if (mIsBeingDragged) {
            final VelocityTracker velocityTracker = mVelocityTracker;
            velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
            int initialVelocity = (int) VelocityTrackerCompat.getXVelocity(velocityTracker, mActivePointerId);
            final int width = getWidth();
            final int scrollX = getScrollX();
            final int currentPage = scrollX / width;
            final int offsetPixels = scrollX - currentPage * width;
            final float pageOffset = (float) offsetPixels / (float) width;
            final int totalDelta = (int) (x - mInitialMotionX);
            int nextPage = determineTargetPage(currentPage, pageOffset, initialVelocity, totalDelta);
            setCurrentItemInternal(nextPage, true, true, initialVelocity);

            mActivePointerId = INVALID_POINTER;
            endDrag();
        } else if (mLastPosition >= 0) {
            final int currentPosition = getPositionByXY((int) x, (int) y);
            HcLog.D("Touch up!!! currentPosition=" + currentPosition);
            if (currentPosition == mLastPosition) {
                onItemClick(currentPosition);
            }
        }
        break;
    }
    case MotionEvent.ACTION_CANCEL:
        HcLog.D("Touch cancel!!!");
        if (mLastDragged >= 0) {
            rearrange();
        } else if (mIsBeingDragged) {
            scrollToItem(mCurItem, true, 0, false);
            mActivePointerId = INVALID_POINTER;
            endDrag();
        }
        break;
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        final float x = MotionEventCompat.getX(ev, index);
        mLastMotionX = x;
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }
    if (needsInvalidate) {
        ViewCompat.postInvalidateOnAnimation(this);
    }
    return true;
}

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

@Override
public boolean onTouchEvent(MotionEvent ev) {

    final int action = ev.getAction();

    if (!mEnabled || !mIsDragging && !mLastTouchAllowed && !allowSlidingFromHereX(ev, mInitialX)
            && !allowSlidingFromHereY(ev, mInitialY)) {
        return false;
    }/*from ww  w .  j a  v a  2  s.  c  o m*/

    if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL
            || action == MotionEvent.ACTION_OUTSIDE) {
        mLastTouchAllowed = false;
    } else {
        mLastTouchAllowed = true;
    }

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

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN:
        completeScroll();

        // Remember where the motion event started
        mLastX = mInitialX = ev.getX();
        mLastY = mInitialY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        break;
    case MotionEvent.ACTION_MOVE:
        if (!mIsDragging) {
            final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            if (pointerIndex == -1) {
                mActivePointerId = INVALID_POINTER;
                break;
            }
            final float x = MotionEventCompat.getX(ev, pointerIndex);
            final float xDiff = Math.abs(x - mLastX);
            final float y = MotionEventCompat.getY(ev, pointerIndex);
            final float yDiff = Math.abs(y - mLastY);
            if (xDiff > mTouchSlop && xDiff > yDiff) {
                mIsDragging = true;
                mLastX = x;
                setDrawingCacheEnabled(true);
            } else if (yDiff > mTouchSlop && yDiff > xDiff) {
                mIsDragging = true;
                mLastY = y;
                setDrawingCacheEnabled(true);
            }
        }
        if (mIsDragging) {
            // Scroll to follow the motion event
            final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            if (activePointerIndex == -1) {
                mActivePointerId = INVALID_POINTER;
                break;
            }
            final float x = MotionEventCompat.getX(ev, activePointerIndex);
            final float y = MotionEventCompat.getY(ev, activePointerIndex);
            if (mOnInteractListener != null) {
                mOnInteractListener.onActionMove(x, y);
            }
            final float deltaX = mLastX - x;
            final float deltaY = mLastY - y;
            mLastX = x;
            mLastY = y;
            final float oldScrollX = getScrollX();
            final float oldScrollY = getScrollY();
            float scrollX = oldScrollX + deltaX;
            float scrollY = oldScrollY + deltaY;

            // Log.d("Layer", String.format("Layer scrollX[%f],scrollY[%f]",
            // scrollX, scrollY));
            final float leftBound, rightBound;
            final float bottomBound, topBound;
            switch (mScreenSide) {
            case STICK_TO_LEFT:
                topBound = bottomBound = rightBound = 0;
                leftBound = getWidth(); // How far left we can scroll
                break;
            case STICK_TO_MIDDLE:
                topBound = getHeight();
                bottomBound = -getHeight();
                leftBound = getWidth();
                rightBound = -getWidth();
                break;
            case STICK_TO_RIGHT:
                rightBound = -getWidth();
                topBound = bottomBound = leftBound = 0;
                break;
            case STICK_TO_TOP:
                topBound = getHeight();
                bottomBound = rightBound = leftBound = 0;
                break;
            case STICK_TO_BOTTOM:
                topBound = rightBound = leftBound = 0;
                bottomBound = -getHeight();
                break;
            default:
                topBound = bottomBound = rightBound = leftBound = 0;
                break;
            }
            if (scrollX > leftBound) {
                scrollX = leftBound;
            } else if (scrollX < rightBound) {
                scrollX = rightBound;
            }
            if (scrollY > topBound) {
                scrollY = topBound;
            } else if (scrollY < bottomBound) {
                scrollY = bottomBound;
            }

            // TODO top/bottom bounds
            // Keep the precision
            mLastX += scrollX - (int) scrollX;
            mLastY += scrollY - (int) scrollY;
            scrollTo((int) scrollX, (int) scrollY);
        }
        break;
    case MotionEvent.ACTION_UP:

        if (mIsDragging) {

            final VelocityTracker velocityTracker = mVelocityTracker;
            velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
            final int initialVelocityX = (int) VelocityTrackerCompat.getXVelocity(velocityTracker,
                    mActivePointerId);
            final int initialVelocityY = (int) VelocityTrackerCompat.getYVelocity(velocityTracker,
                    mActivePointerId);
            final int scrollX = getScrollX();
            final int scrollY = getScrollY();
            final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, activePointerIndex);
            final float y = MotionEventCompat.getY(ev, activePointerIndex);
            final int totalDeltaX = (int) (x - mInitialX);
            final int totalDeltaY = (int) (y - mInitialY);

            boolean nextStateOpened = determineNextStateOpened(mIsOpen, scrollX, scrollY, initialVelocityX,
                    initialVelocityY, totalDeltaX, totalDeltaY);

            boolean isControlled = false;
            if (isControlled) {
                break;
            }

            switchLayer(nextStateOpened, true, true, initialVelocityX, initialVelocityY);

            mActivePointerId = INVALID_POINTER;
            Log.d("", "end drag from action up");
            endDrag();
        } else if (mIsOpen && closeOnTapEnabled) {
            closeLayer(true);
        } else if (!mIsOpen && openOnTapEnabled) {
            openLayer(true);
        }
        break;
    case MotionEvent.ACTION_CANCEL:
        if (mIsDragging) {
            switchLayer(mIsOpen, true, true);
            mActivePointerId = INVALID_POINTER;
            Log.d(TAG, "end drag from action cancel");
            endDrag();
        }
        break;
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastX = MotionEventCompat.getX(ev, index);
        mLastY = MotionEventCompat.getY(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        mLastX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        mLastY = MotionEventCompat.getY(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }
    if (mActivePointerId == INVALID_POINTER) {
        mLastTouchAllowed = false;
    }
    return true;
}