Example usage for android.view MotionEvent obtain

Introduction

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

Prototype

static public MotionEvent obtain(long downTime, long eventTime, int action, float x, float y, int metaState) 

Source Link

Document

Create a new MotionEvent, filling in a subset of the basic motion values.

Usage

From source file:com.brantapps.viewpagerindicator.vertical.VerticalViewPager.java

/**
 * Start a fake drag of the pager.//from www . j  ava2 s  .c o  m
 *
 * <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
 * with the touch scrolling of another view, while still letting the ViewPager
 * control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
 * Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
 * {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
 *
 * <p>During a fake drag the ViewPager will ignore all touch events. If a real drag
 * is already in progress, this method will return false.
 *
 * @return true if the fake drag began successfully, false if it could not be started.
 *
 * @see #fakeDragBy(float)
 * @see #endFakeDrag()
 */
public boolean beginFakeDrag() {
    if (mIsBeingDragged) {
        return false;
    }
    mFakeDragging = true;
    setScrollState(SCROLL_STATE_DRAGGING);
    // BrantApps Change: Changed setting of mLastMotionX to mLastMotionY
    mInitialMotionY = mLastMotionY = 0;
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    } else {
        mVelocityTracker.clear();
    }
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
    mFakeDragBeginTime = time;
    return true;
}

---

From source file:com.suning.boxcontroller.control.ExViewPager.java

/**
 * Start a fake drag of the pager.//from w w w .j a  va 2 s .co m
 *
 * <p>
 * A fake drag can be useful if you want to synchronize the motion of the ViewPager with the touch scrolling of
 * another view, while still letting the ViewPager control the snapping motion and fling behavior. (e.g.
 * parallax-scrolling tabs.) Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
 * {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
 *
 * <p>
 * During a fake drag the ViewPager will ignore all touch events. If a real drag is already in progress, this method
 * will return false.
 *
 * @return true if the fake drag began successfully, false if it could not be started.
 *
 * @see #fakeDragBy(float)
 * @see #endFakeDrag()
 */
public boolean beginFakeDrag() {
    if (mIsBeingDragged) {
        return false;
    }
    mFakeDragging = true;
    setScrollState(SCROLL_STATE_DRAGGING);
    mInitialMotionX = 0;
    mLastMotionX = 0;
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    } else {
        mVelocityTracker.clear();
    }
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
    mFakeDragBeginTime = time;
    return true;
}

---

From source file:VerticalViewPager.java

/**
 * Start a fake drag of the pager.//from w  w  w  .j  av a  2 s. c o m
 *
 * <p>A fake drag can be useful if you want to synchronize the motion of the VerticalViewPager
 * with the touch scrolling of another view, while still letting the VerticalViewPager
 * control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
 * Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
 * {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
 *
 * <p>During a fake drag the VerticalViewPager will ignore all touch events. If a real drag
 * is already in progress, this method will return false.
 *
 * @return true if the fake drag began successfully, false if it could not be started.
 *
 * @see #fakeDragBy(float)
 * @see #endFakeDrag()
 */
public boolean beginFakeDrag() {
    if (mIsBeingDragged) {
        return false;
    }
    mFakeDragging = true;
    setScrollState(SCROLL_STATE_DRAGGING);
    mInitialMotionY = mLastMotionY = 0;
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    } else {
        mVelocityTracker.clear();
    }
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
    mFakeDragBeginTime = time;
    return true;
}

---

From source file:android.support.custom.view.VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called {@link #beginFakeDrag()} first.
 *
 * @param xOffset Offset in pixels to drag by.
 * @see #beginFakeDrag()/*w ww  .  ja v a2 s. c om*/
 * @see #endFakeDrag()
 */
//    public void fakeDragBy(float xOffset) {
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    float scrollY = oldScrollY - yOffset;
    final int height = getHeight();

    float topBound = height * mFirstOffset;
    float bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }

    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

From source file:com.brantapps.viewpagerindicator.vertical.VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called {@link #beginFakeDrag()} first.
 *
 * @param yOffset Offset in pixels to drag by.
 * @see #beginFakeDrag()//from   ww w . j av a 2s . c o  m
 * @see #endFakeDrag()
 */
// BrantApps Change: Replaced all "X"s with "Y"s (except one noted later), "width"s with "height"s, "left"s with "top"s, "right"s with "bottom"s
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    float scrollY = oldScrollY - yOffset;
    final int height = getHeight();

    float topBound = height * mFirstOffset;
    float bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }
    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    // BrantApps Changed: Was scrollTo((int) scrollX, getScrollY());
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    // BrantApps Change: Was final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, mLastMotionX, 0, 0);
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

From source file:com.stone.card.VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called
 * {@link #beginFakeDrag()} first.//from w ww . j a  va 2s. c  om
 * 
 * @param xOffset
 *            Offset in pixels to drag by.
 * @see #beginFakeDrag()
 * @see #endFakeDrag()
 */
// public void fakeDragBy(float xOffset) {
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    float scrollY = oldScrollY - yOffset;
    final int height = getHeight();

    float topBound = height * mFirstOffset;
    float bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }

    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

From source file:com.edgar.banner.LoopViewPager.java

/**
 * Start a fake drag of the pager./*from w  ww.  j  a va 2  s . com*/
 *
 * <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
 * with the touch scrolling of another view, while still letting the ViewPager
 * control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
 * Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
 * {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
 *
 * <p>During a fake drag the ViewPager will ignore all touch events. If a real drag
 * is already in progress, this method will return false.
 *
 * @return true if the fake drag began successfully, false if it could not be started.
 *
 * @see #fakeDragBy(float)
 * @see #endFakeDrag()
 */
public boolean beginFakeDrag() {
    if (mIsBeingDragged) {
        return false;
    }
    if (mVelocityTracker == null)
        return false;
    mFakeDragging = true;
    setScrollState(SCROLL_STATE_DRAGGING);
    mInitialMotionX = mLastMotionX = 0;
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    } else {
        mVelocityTracker.clear();
    }
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
    mFakeDragBeginTime = time;
    return true;
}

---

From source file:com.bloomimpact.bancus.ui.views.VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called {@link #beginFakeDrag()} first.
 *
 * @param yOffset Offset in pixels to drag by.
 * @see #beginFakeDrag()/*from   w  ww. jav a  2 s  . c o  m*/
 * @see #endFakeDrag()
 */
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    float scrollY = oldScrollY - yOffset;
    final int height = getClientHeight();

    float topBound = height * mFirstOffset;
    float bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }
    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

From source file:VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called {@link #beginFakeDrag()} first.
 *
 * @param xOffset Offset in pixels to drag by.
 * @see #beginFakeDrag()/*from  w w  w.  j  a  va 2 s .  c o  m*/
 * @see #endFakeDrag()
 */
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    float scrollY = oldScrollY - yOffset;
    final int height = getClientHeight();

    float topBound = height * mFirstOffset;
    float bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }

    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

From source file:org.ohmage.widget.VerticalViewPager.java

/**
 * Fake drag by an offset in pixels. You must have called {@link #beginFakeDrag()} first.
 *
 * @param yOffset Offset in pixels to drag by.
 * @see #beginFakeDrag()/*w ww.j  a va  2s  . c o  m*/
 * @see #endFakeDrag()
 */
public void fakeDragBy(float yOffset) {
    if (!mFakeDragging) {
        throw new IllegalStateException("No fake drag in progress. Call beginFakeDrag first.");
    }

    mLastMotionY += yOffset;

    float oldScrollY = getScrollY();
    double scrollY = oldScrollY - yOffset;
    final int height = getHeight();

    double topBound = height * mFirstOffset;
    double bottomBound = height * mLastOffset;

    final ItemInfo firstItem = mItems.get(0);
    final ItemInfo lastItem = mItems.get(mItems.size() - 1);
    if (firstItem.position != 0) {
        topBound = firstItem.offset * height;
    }
    if (lastItem.position != mAdapter.getCount() - 1) {
        bottomBound = lastItem.offset * height;
    }

    if (scrollY < topBound) {
        scrollY = topBound;
    } else if (scrollY > bottomBound) {
        scrollY = bottomBound;
    }

    // Don't lose the rounded component
    mLastMotionY += scrollY - (int) scrollY;
    scrollTo(getScrollX(), (int) scrollY);
    pageScrolled((int) scrollY);

    // Synthesize an event for the VelocityTracker.
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(mFakeDragBeginTime, time, MotionEvent.ACTION_MOVE, 0,
            mLastMotionY, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
}

---

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