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

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

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Introduction

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

Prototype

public static int getPointerId(MotionEvent event, int pointerIndex)

Source Link

Document

Call MotionEvent#getPointerId(int) .

Usage

From source file:com.irontec.jaigiro.widgets.StaggeredGridView.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    mVelocityTracker.addMovement(ev);/*  w ww  .j ava2  s .  com*/
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mVelocityTracker.clear();
        mScroller.abortAnimation();
        mLastTouchY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mTouchRemainderY = 0;
        if (mTouchMode == TOUCH_MODE_FLINGING) {
            // Catch!
            // Stopped a fling. It is a scroll.
            setTouchMode(TOUCH_MODE_DRAGGING);

            return true;
        }
        break;

    case MotionEvent.ACTION_MOVE: {
        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) {
            setTouchMode(TOUCH_MODE_DRAGGING);
            return true;
        }
    }
    }

    return false;
}

From source file:com.google.blockly.android.ui.AbstractBlockView.java

@Override
public void getTouchLocationOnScreen(MotionEvent event, @Size(2) int[] locationOut) {
    int pointerId = MotionEventCompat.getPointerId(event, MotionEventCompat.getActionIndex(event));
    int pointerIdx = MotionEventCompat.findPointerIndex(event, pointerId);
    float offsetX = MotionEventCompat.getX(event, pointerIdx);
    float offsetY = MotionEventCompat.getY(event, pointerIdx);

    // Get local screen coordinates.
    getLocationOnScreen(locationOut);/*from ww w . j ava 2  s  .co  m*/

    // add the scaled offset.
    if (mWorkspaceView != null) {
        float scale = mWorkspaceView.getScaleX();
        offsetX = offsetX * scale;
        offsetY = offsetY * scale;
    }
    locationOut[0] += (int) offsetX;
    locationOut[1] += (int) offsetY;
}

From source file:com.icloud.listenbook.base.view.viewpagerindicator.CirclePageIndicator.java

public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }//w w  w. j a  v a2  s . com
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:

        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:

        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            /*
             * ?? ?? ?? .????
             * 
             * ?  
             */
            if ((mCurrentPage > 0) && (ev.getX() < halfWidth - sixthWidth)) {
                if (action != MotionEvent.ACTION_CANCEL) {
                    mViewPager.setCurrentItem(mCurrentPage - 1);
                }
                return true;
            } else if ((mCurrentPage < count - 1) && (ev.getX() > halfWidth + sixthWidth)) {
                if (action != MotionEvent.ACTION_CANCEL) {
                    mViewPager.setCurrentItem(mCurrentPage + 1);
                }
                return true;
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

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

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

From source file:com.bolaa.medical.view.banner.LoopCirclePageIndicator.java

public boolean onTouchEvent(MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }//from   ww  w. j a  va  2  s.co m
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction();

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN:
        //                invalidate();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            if (!mViewPager.isFakeDragging()) {
                mViewPager.beginFakeDrag();
            }

            mLastMotionX = x;

            // tyl ?beginFakeDrag()false,pagermFakeDragging???,
            // ?isFakeDragging()?false??fakeDragBy()
            if (mViewPager != null && mViewPager.isFakeDragging()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;

            if ((mCurrentPage > 0) && (ev.getX() < halfWidth - sixthWidth)) {
                mViewPager.setCurrentItem(mCurrentPage - 1);
                return true;
            } else if ((mCurrentPage < count - 1) && (ev.getX() > halfWidth + sixthWidth)) {
                mViewPager.setCurrentItem(mCurrentPage + 1);
                return true;
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager != null && mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        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:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

From source file:com.folioreader.view.ConfigView.java

/**
 * Handle the touch event intercepted from onInterceptTouchEvent
 * method, this method valid if the touch listener
 * is a valid pointer(like fingers) or the touch
 * is inside of the DragView.// w ww.j a v a2  s . c  o  m
 *
 * @param ev MotionEvent instance, can be used to detect the type of touch.
 * @return Touched area is a valid position.
 */
@Override
public boolean onTouchEvent(MotionEvent ev) {
    int actionMasked = MotionEventCompat.getActionMasked(ev);
    if ((actionMasked & MotionEventCompat.ACTION_MASK) == MotionEvent.ACTION_DOWN) {
        mActivePointerId = MotionEventCompat.getPointerId(ev, actionMasked);
    }
    if (mActivePointerId == INVALID_POINTER) {
        return false;
    }
    mViewDragHelper.processTouchEvent(ev);
    return ViewHelper.isViewHit(mContainer, this, (int) ev.getX(), (int) ev.getY());
}

From source file:cn.ieclipse.af.view.StaggeredGridView.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    mVelocityTracker.addMovement(ev);//from w  ww .  j a  va 2 s  .c om
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mVelocityTracker.clear();
        mScroller.abortAnimation();
        mLastTouchY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mTouchRemainderY = 0;
        break;

    case MotionEvent.ACTION_MOVE: {
        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();
            }
        }
    }
        break;

    case MotionEvent.ACTION_CANCEL:
        mTouchMode = TOUCH_MODE_IDLE;
        break;

    case MotionEvent.ACTION_UP: {
        mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
        final float velocity = VelocityTrackerCompat.getYVelocity(mVelocityTracker, mActivePointerId);
        if (Math.abs(velocity) > mFlingVelocity) { // TODO
            mTouchMode = TOUCH_MODE_FLINGING;
            mScroller.fling(0, 0, 0, (int) velocity, 0, 0, Integer.MIN_VALUE, Integer.MAX_VALUE);
            mLastTouchY = 0;
            ViewCompat.postInvalidateOnAnimation(this);
        } else {
            mTouchMode = TOUCH_MODE_IDLE;
        }

    }
        break;
    }
    return true;
}

From source file:com.gitstudy.rili.liarbry.CalendarLayout.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    if (isAnimating) {
        return true;
    }//  ww  w .  j a  va 2  s  . co m
    if (mGestureMode == GESTURE_MODE_DISABLED) {
        return false;
    }
    if (mYearView == null || mContentView == null || mContentView.getVisibility() != VISIBLE) {
        return super.onInterceptTouchEvent(ev);
    }

    if (mCalendarShowMode == CALENDAR_SHOW_MODE_ONLY_MONTH_VIEW
            || mCalendarShowMode == CALENDAR_SHOW_MODE_ONLY_WEEK_VIEW) {
        return false;
    }

    if (mYearView.getVisibility() == VISIBLE || mDelegate.isShowYearSelectedLayout) {
        return super.onInterceptTouchEvent(ev);
    }
    final int action = ev.getAction();
    float y = ev.getY();
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        int index = MotionEventCompat.getActionIndex(ev);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        mLastY = downY = y;
        break;
    case MotionEvent.ACTION_MOVE:
        float dy = y - mLastY;
        /*
          ?ViewPager??
        */
        if (dy < 0 && mContentView.getTranslationY() == -mContentViewTranslateY) {
            return false;
        }
        /*
         * ? 2 ?? yViewPager
         * 1?RecyclerView ViewmContentView
         * 2??
         */
        if (dy > 0 && mContentView.getTranslationY() == -mContentViewTranslateY
                && y >= CalendarUtil.dipToPx(getContext(), 98)) {
            if (!isScrollTop()) {
                return false;
            }
        }

        if (dy > 0 && mContentView.getTranslationY() == 0 && y >= CalendarUtil.dipToPx(getContext(), 98)) {
            return false;
        }

        if (Math.abs(dy) > mTouchSlop) {//mTouchSlopContentViewViewPagerCANCEL
            if ((dy > 0 && mContentView.getTranslationY() <= 0)
                    || (dy < 0 && mContentView.getTranslationY() >= -mContentViewTranslateY)) {
                mLastY = y;
                return true;
            }
        }
        break;
    }
    return super.onInterceptTouchEvent(ev);
}

From source file:com.android.photos.views.GalleryThumbnailView.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    mVelocityTracker.addMovement(ev);/*  ww  w . ja v a  2 s .  com*/
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mVelocityTracker.clear();
        mScroller.abortAnimation();
        mLastTouchX = ev.getX();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mTouchRemainderX = 0;
        break;

    case MotionEvent.ACTION_MOVE: {
        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 x = MotionEventCompat.getX(ev, index);
        final float dx = x - mLastTouchX + mTouchRemainderX;
        final int deltaX = (int) dx;
        mTouchRemainderX = dx - deltaX;

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

        if (mTouchMode == TOUCH_MODE_DRAGGING) {
            mLastTouchX = x;

            if (!trackMotionScroll(deltaX, true)) {
                // Break fling velocity if we impacted an edge.
                mVelocityTracker.clear();
            }
        }
    }
        break;

    case MotionEvent.ACTION_CANCEL:
        mTouchMode = TOUCH_MODE_IDLE;
        break;

    case MotionEvent.ACTION_UP: {
        mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
        final float velocity = VelocityTrackerCompat.getXVelocity(mVelocityTracker, mActivePointerId);
        if (Math.abs(velocity) > mFlingVelocity) { // TODO
            mTouchMode = TOUCH_MODE_FLINGING;
            mScroller.fling(0, 0, (int) velocity, 0, Integer.MIN_VALUE, Integer.MAX_VALUE, 0, 0);
            mLastTouchX = 0;
            ViewCompat.postInvalidateOnAnimation(this);
        } else {
            mTouchMode = TOUCH_MODE_IDLE;
        }

    }
        break;
    }
    return true;
}

From source file:com.kuloud.android.unity.ui.widget.steprefresh.PullToRefreshView.java

private void onSecondaryPointerUp(MotionEvent ev) {
    final int pointerIndex = MotionEventCompat.getActionIndex(ev);
    final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
    if (pointerId == mActivePointerId) {
        final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
        mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
    }//from www  .ja  v a2s. co  m
}

From source file:com.cyj.ui.component.listview.CusSwipeRefreshLayout.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    ensureTarget();/*from w ww .  j  a  v a  2s .co 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;
        mIsPulling = false;
        mCanRefreshing = false;
        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;
        }

        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;
        mActivePointerId = INVALID_POINTER;
        break;
    }

    return mIsBeingDragged;
}