Example usage for android.view MotionEvent getHistoricalX

Introduction

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

Prototype

public final float getHistoricalX(int pos) 

Source Link

Document

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

Usage

From source file:de.hs_bremen.aurora_hunter.ui.views.KpIndexChartView.java

public boolean onTouch(View view, MotionEvent event) {
    if (event.getAction() != MotionEvent.ACTION_UP) {
        for (int i = 0; i < event.getHistorySize(); i++) {
            Point point = new Point();
            point.x = event.getHistoricalX(i);
            point.y = event.getHistoricalY(i);
            // points.add(point);
        }//from   w  ww  . ja va  2 s .c  o  m
        invalidate();
        return true;
    }
    return super.onTouchEvent(event);
}

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From source file:com.ichi2.anki.Whiteboard.java

/**
 * Handle touch screen motion events./*  w w  w  .  j a  v  a2  s.c om*/
 * 
 * @param event The motion event.
 * @return True if the event was handled, false otherwise.
 */
public boolean handleTouchEvent(MotionEvent event) {
    float x = event.getX();
    float y = event.getY();

    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        touchStart(x, y);
        invalidate();
        return true;
    case MotionEvent.ACTION_MOVE:
        for (int i = 0; i < event.getHistorySize(); i++) {
            touchMove(event.getHistoricalX(i), event.getHistoricalY(i));
        }
        touchMove(x, y);
        invalidate();
        return true;
    case MotionEvent.ACTION_UP:
        touchUp();
        invalidate();
        return true;
    default:
        return false;
    }
}

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From source file:com.p3authentication.preferences.Prefs.java

@SuppressWarnings("static-access")
@Override//from  w ww .java2  s  . c o m
public boolean onTouch(View v, MotionEvent event) {
    // TODO Auto-generated method stub
    int action = event.getAction();
    int N = event.getHistorySize();
    if (action == event.ACTION_DOWN) {
        calibrator.setColorFilter(Color.BLACK);
        for (int i = 0; i < N; i++) {
            calibrate(event.getHistoricalX(i), event.getHistoricalY(i), event.getHistoricalPressure(i),
                    event.getHistoricalSize(i));
        }
        calibrate(event.getX(), event.getY(), event.getPressure(), event.getSize());
    } else if (action == event.ACTION_UP) {
        Float temp = Collections.max(CalList);
        temp = (float) Math.ceil((Double.parseDouble(Float.valueOf(temp).toString())) / 10);
        LargeValue = temp * 10;
        calibrator.setColorFilter(Color.GREEN);
        // Largest.setText(String.valueOf(LargeValue));

    }

    return true;
}

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From source file:com.hippo.widget.lockpattern.LockPatternView.java

private void handleActionMove(MotionEvent event) {
    // Handle all recent motion events so we don't skip any cells even when the device
    // is busy...
    final float radius = mPathWidth;
    final int historySize = event.getHistorySize();
    mTmpInvalidateRect.setEmpty();/* w  ww  .  j a va  2s .  c  om*/
    boolean invalidateNow = false;
    for (int i = 0; i < historySize + 1; i++) {
        final float x = i < historySize ? event.getHistoricalX(i) : event.getX();
        final float y = i < historySize ? event.getHistoricalY(i) : event.getY();
        Cell hitCell = detectAndAddHit(x, y);
        final int patternSize = mPattern.size();
        if (hitCell != null && patternSize == 1) {
            mPatternInProgress = true;
            notifyPatternStarted();
        }
        // note current x and y for rubber banding of in progress patterns
        final float dx = Math.abs(x - mInProgressX);
        final float dy = Math.abs(y - mInProgressY);
        if (dx > DRAG_THRESHHOLD || dy > DRAG_THRESHHOLD) {
            invalidateNow = true;
        }

        if (mPatternInProgress && patternSize > 0) {
            final ArrayList<Cell> pattern = mPattern;
            final Cell lastCell = pattern.get(patternSize - 1);
            float lastCellCenterX = getCenterXForColumn(lastCell.column);
            float lastCellCenterY = getCenterYForRow(lastCell.row);

            // Adjust for drawn segment from last cell to (x,y). Radius accounts for line width.
            float left = Math.min(lastCellCenterX, x) - radius;
            float right = Math.max(lastCellCenterX, x) + radius;
            float top = Math.min(lastCellCenterY, y) - radius;
            float bottom = Math.max(lastCellCenterY, y) + radius;

            // Invalidate between the pattern's new cell and the pattern's previous cell
            if (hitCell != null) {
                final float width = mSquareWidth * 0.5f;
                final float height = mSquareHeight * 0.5f;
                final float hitCellCenterX = getCenterXForColumn(hitCell.column);
                final float hitCellCenterY = getCenterYForRow(hitCell.row);

                left = Math.min(hitCellCenterX - width, left);
                right = Math.max(hitCellCenterX + width, right);
                top = Math.min(hitCellCenterY - height, top);
                bottom = Math.max(hitCellCenterY + height, bottom);
            }

            // Invalidate between the pattern's last cell and the previous location
            mTmpInvalidateRect.union(Math.round(left), Math.round(top), Math.round(right), Math.round(bottom));
        }
    }
    mInProgressX = event.getX();
    mInProgressY = event.getY();

    // To save updates, we only invalidate if the user moved beyond a certain amount.
    if (invalidateNow) {
        mInvalidate.union(mTmpInvalidateRect);
        invalidate(mInvalidate);
        mInvalidate.set(mTmpInvalidateRect);
    }
}

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From source file:co.adrianblan.fastbrush.MyGLSurfaceView.java

@Override
public boolean onTouchEvent(MotionEvent e) {
    // MotionEvent reports input details from the touch screen
    // and other input controls. In this case, you are only
    // interested in events where the touch position changed.

    switch (e.getAction()) {

    case MotionEvent.ACTION_DOWN:
        if (mVelocityTracker == null) {
            mVelocityTracker = VelocityTracker.obtain();
        } else {/*from   w  w  w.  ja  v a2 s  . c  o  m*/
            mVelocityTracker.clear();
        }

        queueEvent(new Runnable() {
            @Override
            public void run() {
                mRenderer.touchHasStarted();
            }
        });

        // No break is intentional

    case MotionEvent.ACTION_MOVE:

        mVelocityTracker.addMovement(e);

        // Compute velocity in pixels per second
        mVelocityTracker.computeCurrentVelocity(1);

        final ArrayList<TouchData> touchDataList = new ArrayList<>(e.getHistorySize() + 1);
        Vector2 viewportPosition;

        Vector2 viewportVelocity = new Vector2(
                VelocityTrackerCompat.getXVelocity(mVelocityTracker, e.getActionIndex()),
                VelocityTrackerCompat.getYVelocity(mVelocityTracker, e.getActionIndex()));

        // Add previous touch coordinates
        for (int i = 0; i < e.getHistorySize(); i++) {
            viewportPosition = new Vector2(e.getHistoricalX(i), e.getHistoricalY(i));

            touchDataList.add(new TouchData(mRenderer.viewportToWorld(viewportPosition), viewportVelocity,
                    e.getHistoricalSize(i), e.getHistoricalPressure(i)));
        }

        // Add current touch coordinates
        viewportPosition = new Vector2(e.getX(), e.getY());
        touchDataList.add(new TouchData(mRenderer.viewportToWorld(viewportPosition), viewportVelocity,
                e.getSize(), e.getPressure()));

        // Ensure we call switchMode() on the OpenGL thread.
        // queueEvent() is a method of GLSurfaceView that will do this for us.
        queueEvent(new Runnable() {
            @Override
            public void run() {
                mRenderer.addTouchData(touchDataList);
            }
        });

        requestRender();
        break;

    case MotionEvent.ACTION_UP:

        queueEvent(new Runnable() {
            @Override
            public void run() {
                mRenderer.touchHasEnded();
            }
        });
        requestRender();
        break;
    }
    return true;
}

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From source file:com.rexmtorres.android.patternlock.PatternLockView.java

private void handleActionMove(MotionEvent event) {
    // Handle all recent motion events so we don't skip any cells even when the device
    // is busy...
    final float radius = mPathWidth;
    final int historySize = event.getHistorySize();
    mTmpInvalidateRect.setEmpty();/*w  w  w.ja  va 2 s .c o  m*/
    boolean invalidateNow = false;
    for (int i = 0; i < historySize + 1; i++) {
        final float x = i < historySize ? event.getHistoricalX(i) : event.getX();
        final float y = i < historySize ? event.getHistoricalY(i) : event.getY();
        Cell hitCell = detectAndAddHit(x, y);
        final int patternSize = mPattern.size();
        if (hitCell != null && patternSize == 1) {
            setPatternInProgress(true);
            notifyPatternStarted();
        }
        // note current x and y for rubber banding of in progress patterns
        final float dx = Math.abs(x - mInProgressX);
        final float dy = Math.abs(y - mInProgressY);
        if (dx > DRAG_THRESHHOLD || dy > DRAG_THRESHHOLD) {
            invalidateNow = true;
        }
        if (mPatternInProgress && patternSize > 0) {
            final ArrayList<Cell> pattern = mPattern;
            final Cell lastCell = pattern.get(patternSize - 1);
            float lastCellCenterX = getCenterXForColumn(lastCell.column);
            float lastCellCenterY = getCenterYForRow(lastCell.row);
            // Adjust for drawn segment from last cell to (x,y). Radius accounts for line width.
            float left = Math.min(lastCellCenterX, x) - radius;
            float right = Math.max(lastCellCenterX, x) + radius;
            float top = Math.min(lastCellCenterY, y) - radius;
            float bottom = Math.max(lastCellCenterY, y) + radius;
            // Invalidate between the pattern's new cell and the pattern's previous cell
            if (hitCell != null) {
                final float width = mSquareWidth * 0.5f;
                final float height = mSquareHeight * 0.5f;
                final float hitCellCenterX = getCenterXForColumn(hitCell.column);
                final float hitCellCenterY = getCenterYForRow(hitCell.row);
                left = Math.min(hitCellCenterX - width, left);
                right = Math.max(hitCellCenterX + width, right);
                top = Math.min(hitCellCenterY - height, top);
                bottom = Math.max(hitCellCenterY + height, bottom);
            }
            // Invalidate between the pattern's last cell and the previous location
            mTmpInvalidateRect.union(Math.round(left), Math.round(top), Math.round(right), Math.round(bottom));
        }
    }
    mInProgressX = event.getX();
    mInProgressY = event.getY();
    // To save updates, we only invalidate if the user moved beyond a certain amount.
    if (invalidateNow) {
        mInvalidate.union(mTmpInvalidateRect);
        invalidate(mInvalidate);
        mInvalidate.set(mTmpInvalidateRect);
    }
}

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From source file:io.authme.sdk.widget.LockPatternView.java

private void handleActionMove(MotionEvent event) {
    // Handle all recent motion events so we don't skip any cells even when
    // the device
    // is busy...
    final float radius = mPathWidth;
    final int historySize = event.getHistorySize();
    mTmpInvalidateRect.setEmpty();// w w  w.  j  a  v a2 s .c om
    boolean invalidateNow = false;
    for (int i = 0; i < historySize + 1; i++) {
        final float x = i < historySize ? event.getHistoricalX(i) : event.getX();
        final float y = i < historySize ? event.getHistoricalY(i) : event.getY();
        Cell hitCell = detectAndAddHit(x, y);
        final int patternSize = mPattern.size();
        if (hitCell != null && patternSize == 1) {
            mPatternInProgress = true;
            notifyPatternStarted();
        }
        // note current x and y for rubber banding of in progress patterns
        final float dx = Math.abs(x - mInProgressX);
        final float dy = Math.abs(y - mInProgressY);
        if (dx > DRAG_THRESHHOLD || dy > DRAG_THRESHHOLD) {
            invalidateNow = true;
        }

        if (mPatternInProgress && patternSize > 0) {
            final ArrayList<Cell> pattern = mPattern;
            final Cell lastCell = pattern.get(patternSize - 1);
            float lastCellCenterX = getCenterXForColumn(lastCell.column);
            float lastCellCenterY = getCenterYForRow(lastCell.row);

            // Adjust for drawn segment from last cell to (x,y). Radius
            // accounts for line width.
            float left = Math.min(lastCellCenterX, x) - radius;
            float right = Math.max(lastCellCenterX, x) + radius;
            float top = Math.min(lastCellCenterY, y) - radius;
            float bottom = Math.max(lastCellCenterY, y) + radius;

            // Invalidate between the pattern's new cell and the pattern's
            // previous cell
            if (hitCell != null) {
                final float width = mSquareWidth * 0.5f;
                final float height = mSquareHeight * 0.5f;
                final float hitCellCenterX = getCenterXForColumn(hitCell.column);
                final float hitCellCenterY = getCenterYForRow(hitCell.row);

                left = Math.min(hitCellCenterX - width, left);
                right = Math.max(hitCellCenterX + width, right);
                top = Math.min(hitCellCenterY - height, top);
                bottom = Math.max(hitCellCenterY + height, bottom);
            }

            // Invalidate between the pattern's last cell and the previous
            // location
            mTmpInvalidateRect.union(Math.round(left), Math.round(top), Math.round(right), Math.round(bottom));
        }
    }
    mInProgressX = event.getX();
    mInProgressY = event.getY();

    // To save updates, we only invalidate if the user moved beyond a
    // certain amount.
    if (invalidateNow) {
        mInvalidate.union(mTmpInvalidateRect);
        invalidate(mInvalidate);
        mInvalidate.set(mTmpInvalidateRect);
    }
}

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From source file:com.android.nobug.view.pattern.PatternView.java

private void handleActionMove(MotionEvent event) {

    // Handle all recent motion events so we don't skip any cells even when the device
    // is busy...
    final float radius = mPathWidth;
    final int historySize = event.getHistorySize();
    mTmpInvalidateRect.setEmpty();//from w ww .j  a va2  s.  c  om
    boolean invalidateNow = false;
    for (int i = 0; i < historySize + 1; i++) {
        final float x = i < historySize ? event.getHistoricalX(i) : event.getX();
        final float y = i < historySize ? event.getHistoricalY(i) : event.getY();
        Cell hitCell = detectAndAddHit(x, y);
        final int patternSize = mPattern.size();
        if (hitCell != null && patternSize == 1) {
            setPatternInProgress(true);
            notifyPatternStarted();
        }
        // note current x and y for rubber banding of in progress patterns
        final float dx = Math.abs(x - mInProgressX);
        final float dy = Math.abs(y - mInProgressY);
        if (dx > DRAG_THRESHOLD || dy > DRAG_THRESHOLD) {
            invalidateNow = true;
        }

        if (mPatternInProgress && patternSize > 0) {
            final ArrayList<Cell> pattern = mPattern;
            final Cell lastCell = pattern.get(patternSize - 1);
            float lastCellCenterX = getCenterXForColumn(lastCell.column);
            float lastCellCenterY = getCenterYForRow(lastCell.row);

            // Adjust for drawn segment from last cell to (x,y). Radius accounts for line width.
            float left = Math.min(lastCellCenterX, x) - radius;
            float right = Math.max(lastCellCenterX, x) + radius;
            float top = Math.min(lastCellCenterY, y) - radius;
            float bottom = Math.max(lastCellCenterY, y) + radius;

            // Invalidate between the pattern's new cell and the pattern's previous cell
            if (hitCell != null) {
                final float width = mSquareWidth * 0.5f;
                final float height = mSquareHeight * 0.5f;
                final float hitCellCenterX = getCenterXForColumn(hitCell.column);
                final float hitCellCenterY = getCenterYForRow(hitCell.row);

                left = Math.min(hitCellCenterX - width, left);
                right = Math.max(hitCellCenterX + width, right);
                top = Math.min(hitCellCenterY - height, top);
                bottom = Math.max(hitCellCenterY + height, bottom);
            }

            // Invalidate between the pattern's last cell and the previous location
            mTmpInvalidateRect.union(Math.round(left), Math.round(top), Math.round(right), Math.round(bottom));
        }
    }
    mInProgressX = event.getX();
    mInProgressY = event.getY();

    // To save updates, we only invalidate if the user moved beyond a certain amount.
    if (invalidateNow) {
        mInvalidate.union(mTmpInvalidateRect);
        invalidate(mInvalidate);
        mInvalidate.set(mTmpInvalidateRect);
    }
}

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From source file:com.android.messaging.ui.conversationlist.ConversationListSwipeHelper.java

@Override
public boolean onInterceptTouchEvent(final RecyclerView recyclerView, final MotionEvent event) {
    if (event.getPointerCount() > 1) {
        // Ignore subsequent pointers.
        return false;
    }/*w  w  w  .ja  v  a2 s  . co  m*/

    // We are not yet tracking a swipe gesture. Begin detection by spying on
    // touch events bubbling down to our children.
    final int action = event.getActionMasked();
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        if (!hasGestureSwipeTarget()) {
            onGestureStart();

            mVelocityTracker.addMovement(event);
            mInitialX = event.getX();
            mInitialY = event.getY();

            final View viewAtPoint = mRecyclerView.findChildViewUnder(mInitialX, mInitialY);
            final ConversationListItemView child = (ConversationListItemView) viewAtPoint;
            if (viewAtPoint instanceof ConversationListItemView && child != null && child.isSwipeAnimatable()) {
                // Begin detecting swipe on the target for the rest of the gesture.
                mListItemView = child;
                if (mListItemView.isAnimating()) {
                    mListItemView = null;
                }
            } else {
                mListItemView = null;
            }
        }
        break;
    case MotionEvent.ACTION_MOVE:
        if (hasValidGestureSwipeTarget()) {
            mVelocityTracker.addMovement(event);

            final int historicalCount = event.getHistorySize();
            // First consume the historical events, then consume the current ones.
            for (int i = 0; i < historicalCount + 1; i++) {
                float currX;
                float currY;
                if (i < historicalCount) {
                    currX = event.getHistoricalX(i);
                    currY = event.getHistoricalY(i);
                } else {
                    currX = event.getX();
                    currY = event.getY();
                }
                final float deltaX = currX - mInitialX;
                final float deltaY = currY - mInitialY;
                final float absDeltaX = Math.abs(deltaX);
                final float absDeltaY = Math.abs(deltaY);

                if (!mIsSwiping && absDeltaY > mTouchSlop
                        && absDeltaY > (ERROR_FACTOR_MULTIPLIER * absDeltaX)) {
                    // Stop detecting swipe for the remainder of this gesture.
                    onGestureEnd();
                    return false;
                }

                if (absDeltaX > mTouchSlop) {
                    // Swipe detected. Return true so we can handle the gesture in
                    // onTouchEvent.
                    mIsSwiping = true;

                    // We don't want to suddenly jump the slop distance.
                    mInitialX = event.getX();
                    mInitialY = event.getY();

                    onSwipeGestureStart(mListItemView);
                    return true;
                }
            }
        }
        break;
    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
        if (hasGestureSwipeTarget()) {
            onGestureEnd();
        }
        break;
    }

    // Start intercepting touch events from children if we detect a swipe.
    return mIsSwiping;
}

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