Example usage for android.support.v4.view ViewCompat OVER_SCROLL_IF_CONTENT_SCROLLS

List of usage examples for android.support.v4.view ViewCompat OVER_SCROLL_IF_CONTENT_SCROLLS

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Introduction

In this page you can find the example usage for android.support.v4.view ViewCompat OVER_SCROLL_IF_CONTENT_SCROLLS.

Prototype

int OVER_SCROLL_IF_CONTENT_SCROLLS

To view the source code for android.support.v4.view ViewCompat OVER_SCROLL_IF_CONTENT_SCROLLS.

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Document

Allow a user to over-scroll this view only if the content is large enough to meaningfully scroll, provided it is a view that can scroll.

Usage

From source file:com.blestep.sportsbracelet.view.TimelineChartView.java

private void onOverScroll() {
    final boolean needOverScroll;
    synchronized (mLock) {
        needOverScroll = mData.size() >= Math.floor(mMaxBarItemsInScreen / 2);
    }/*from   www.  ja va  2  s .c om*/
    final int overScrollMode = ViewCompat.getOverScrollMode(this);
    if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
            || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && needOverScroll)) {
        boolean needsInvalidate = false;
        if (mCurrentOffset > mMaxOffset) {
            needsInvalidate = true;
        }
        if (mCurrentOffset < 0) {
            needsInvalidate = true;
        }

        if (needsInvalidate) {
            ViewCompat.postInvalidateOnAnimation(this);
        }
    }
}

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

/**
 * /*from www . j  av  a 2  s. co  m*/
 * @param deltaY
 *            Pixels that content should move by
 * @return true if the movement completed, false if it was stopped
 *         prematurely.
 */
private boolean trackMotionScroll(int deltaY, boolean allowOverScroll) {
    final boolean contentFits = contentFits();
    final int allowOverhang = Math.abs(deltaY);

    final int overScrolledBy;
    final int movedBy;
    if (!contentFits) {
        final int overhang;
        final boolean up;
        mPopulating = true;
        if (deltaY > 0) {
            overhang = fillUp(mFirstPosition - 1, allowOverhang);
            up = true;
        } else {
            overhang = fillDown(mFirstPosition + getChildCount(), allowOverhang) + mItemMargin;
            up = false;
        }
        movedBy = Math.min(overhang, allowOverhang);
        offsetChildren(up ? movedBy : -movedBy);
        recycleOffscreenViews();
        mPopulating = false;
        overScrolledBy = allowOverhang - overhang;
    } else {
        overScrolledBy = allowOverhang;
        movedBy = 0;
    }

    if (allowOverScroll) {
        final int overScrollMode = ViewCompat.getOverScrollMode(this);

        if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
                || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits)) {

            if (overScrolledBy > 0) {
                EdgeEffectCompat edge = deltaY > 0 ? mTopEdge : mBottomEdge;
                edge.onPull((float) Math.abs(deltaY) / getHeight());
                ViewCompat.postInvalidateOnAnimation(this);
            }
        }
    }

    invokeOnItemScrollListener();

    return deltaY == 0 || movedBy != 0;
}

From source file:com.blestep.sportsbracelet.view.TimelineChartView.java

/**
 * {@inheritDoc}//  w w  w .  j a v a 2 s  .  c  om
 */
@Override
public void computeScroll() {
    super.computeScroll();

    // Determine whether we still scrolling and needs a viewport refresh
    final boolean scrolling = mScroller.computeScrollOffset();
    if (scrolling) {
        float x = mScroller.getCurrX();
        if (x > mMaxOffset || x < 0) {
            return;
        }
        mCurrentOffset = x;
        ViewCompat.postInvalidateOnAnimation(this);
    } else if (mState > STATE_MOVING) {
        boolean needsInvalidate = false;
        final boolean needOverScroll;
        synchronized (mLock) {
            needOverScroll = mData.size() >= Math.floor(mMaxBarItemsInScreen / 2);
        }
        final int overScrollMode = ViewCompat.getOverScrollMode(this);
        if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
                || (needOverScroll && overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS)) {
            float x = mScroller.getCurrX();
            if (x >= mMaxOffset) {
                needsInvalidate = true;
            }
            if (x < 0) {
                needsInvalidate = true;
            }
        }
        if (!needsInvalidate) {
            // Reset state
            mState = STATE_IDLE;
            mLastPosition = -1;
        } else {
            ViewCompat.postInvalidateOnAnimation(this);
        }
    }

    int position = computeNearestPositionFromOffset(mCurrentOffset);

    // If we are not centered in a item, perform an scroll
    if (mState == STATE_IDLE) {
        smoothScrollTo(position);
    }

    if (mCurrentPosition != position) {
        // Don't perform selection operations while we are just scrolling
        if (mState != STATE_SCROLLING) {
            mCurrentPosition = position;

            // Notify any valid item, but only notify invalid items if
            // we are not panning/scrolling
            if (mCurrentPosition >= 0 || !scrolling) {
                Message.obtain(mUiHandler, MSG_ON_SELECTION_ITEM_CHANGED).sendToTarget();
            }
        }
    }
}

From source file:com.qurater.pivotal.ui.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mNeedSync = false;//from  w w  w .  j a va 2 s.co  m
    mVelocityTracker = null;

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mIsAttached = false;

    mContextMenuInfo = null;

    mOnScrollListener = null;
    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mOverScroll = 0;

    mScroller = new Scroller(context);

    mIsVertical = true;

    mItemsCanFocus = false;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();
    mSelectedStart = 0;

    mResurrectToPosition = INVALID_POSITION;

    mSelectedStart = 0;
    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;
    mCheckedItemCount = 0;
    mCheckedIdStates = null;
    mCheckStates = null;

    mRecycler = new RecycleBin();
    mDataSetObserver = null;

    mAreAllItemsSelectable = true;

    mStartEdge = null;
    mEndEdge = null;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TwoWayView, defStyle, 0);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.TwoWayView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.TwoWayView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.TwoWayView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.TwoWayView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();
}

From source file:com.propkaro.util.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mNeedSync = false;/*from w  ww  .  j  a  va  2 s  .com*/
    mVelocityTracker = null;

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mIsAttached = false;

    mContextMenuInfo = null;

    mOnScrollListener = null;
    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mOverScroll = 0;

    mScroller = new Scroller(context);

    mIsVertical = true;

    mItemsCanFocus = false;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();
    mSelectedStart = 0;

    mResurrectToPosition = INVALID_POSITION;

    mSelectedStart = 0;
    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;
    mCheckedItemCount = 0;
    mCheckedIdStates = null;
    mCheckStates = null;

    mRecycler = new RecycleBin();
    mDataSetObserver = null;

    mAreAllItemsSelectable = true;

    mStartEdge = null;
    mEndEdge = null;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TwoWayView, defStyle, 0);
    //        initializeScrollbars(a);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.TwoWayView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.TwoWayView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.TwoWayView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.TwoWayView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();

    updateScrollbarsDirection();
}

From source file:com.mist.sciryl.app.views.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mNeedSync = false;//from   ww  w. j av  a2 s.co  m
    mVelocityTracker = null;

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mIsAttached = false;

    mContextMenuInfo = null;

    mOnScrollListener = null;
    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mOverScroll = 0;

    mScroller = new Scroller(context);

    mIsVertical = true;

    mItemsCanFocus = false;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();
    mSelectedStart = 0;

    mResurrectToPosition = INVALID_POSITION;

    mSelectedStart = 0;
    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;
    mCheckedItemCount = 0;
    mCheckedIdStates = null;
    mCheckStates = null;

    mRecycler = new RecycleBin();
    mDataSetObserver = null;

    mAreAllItemsSelectable = true;

    mStartEdge = null;
    mEndEdge = null;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TwoWayView, defStyle, 0);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.TwoWayView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.TwoWayView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.TwoWayView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.TwoWayView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();

    updateScrollbarsDirection();
}

From source file:com.aliasapps.seq.scroller.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mNeedSync = false;//from w w  w .j a  v  a  2s . c o m
    mVelocityTracker = null;

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mIsAttached = false;

    mContextMenuInfo = null;

    mOnScrollListener = null;
    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mOverScroll = 0;

    mScroller = new Scroller(context);

    mIsVertical = true;

    mItemsCanFocus = false;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();
    mSelectedStart = 0;

    mResurrectToPosition = INVALID_POSITION;

    mSelectedStart = 0;
    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;
    mCheckedItemCount = 0;
    mCheckedIdStates = null;
    mCheckStates = null;

    mRecycler = new RecycleBin();
    mDataSetObserver = null;

    mAreAllItemsSelectable = true;

    mStartEdge = null;
    mEndEdge = null;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TwoWayView, defStyle, 0);
    initializeScrollbars(a);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.TwoWayView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.TwoWayView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.TwoWayView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.TwoWayView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();

    updateScrollbarsDirection();
}

From source file:com.runmit.sweedee.view.DirectListView.java

public DirectListView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mNeedSync = false;/*from   w  w  w. j  av  a 2 s .c  om*/
    mVelocityTracker = null;

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mIsAttached = false;

    mContextMenuInfo = null;

    mOnScrollListener = null;
    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mOverScroll = 0;

    mScroller = new Scroller(context);

    mIsVertical = true;

    mItemsCanFocus = false;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();
    mSelectedStart = 0;

    mResurrectToPosition = INVALID_POSITION;

    mSelectedStart = 0;
    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;
    mCheckedItemCount = 0;
    mCheckedIdStates = null;
    mCheckStates = null;

    mRecycler = new RecycleBin();
    mDataSetObserver = null;

    mAreAllItemsSelectable = true;

    mStartEdge = null;
    mEndEdge = null;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.DirectListView, defStyle, 0);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.DirectListView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.DirectListView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.DirectListView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.DirectListView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();

    updateScrollbarsDirection();
}

From source file:com.mcxiaoke.minicat.ui.widget.StaggeredGridView.java

/**
 * @param deltaY Pixels that content should move by
 * @return true if the movement completed, false if it was stopped prematurely.
 *//*from  ww  w. j  a  va2 s .  c o  m*/
private boolean trackMotionScroll(int deltaY, boolean allowOverScroll) {
    final boolean contentFits = contentFits();
    final int allowOverhang = Math.abs(deltaY);

    final int overScrolledBy;
    final int movedBy;
    if (!contentFits) {
        final int overhang;
        final boolean up;
        mPopulating = true;
        if (deltaY > 0) {
            overhang = fillUp(mFirstPosition - 1, allowOverhang);
            up = true;
        } else {
            overhang = fillDown(mFirstPosition + getChildCount(), allowOverhang) + mItemMargin;
            up = false;
        }
        movedBy = Math.min(overhang, allowOverhang);
        offsetChildren(up ? movedBy : -movedBy);
        recycleOffscreenViews();
        mPopulating = false;
        overScrolledBy = allowOverhang - overhang;
    } else {
        overScrolledBy = allowOverhang;
        movedBy = 0;
    }

    if (allowOverScroll) {
        final int overScrollMode = ViewCompat.getOverScrollMode(this);

        if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
                || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits)) {
            if (overScrolledBy > 0) {
                EdgeEffectCompat edge = deltaY > 0 ? mTopEdge : mBottomEdge;
                edge.onPull((float) Math.abs(deltaY) / getHeight());
                invalidate();
            }
        }
    }

    if (mSelectorPosition != INVALID_POSITION) {
        final int childIndex = mSelectorPosition - mFirstPosition;
        if (childIndex >= 0 && childIndex < getChildCount()) {
            positionSelector(INVALID_POSITION, getChildAt(childIndex));
        }
    } else {
        mSelectorRect.setEmpty();
    }

    return deltaY == 0 || movedBy != 0;
}

From source file:com.artifex.mupdflib.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mContext = context;//from w ww.ja v a 2  s . co m

    mLayoutMode = LAYOUT_NORMAL;
    mTouchMode = TOUCH_MODE_REST;
    mLastTouchMode = TOUCH_MODE_UNKNOWN;

    mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE;

    final ViewConfiguration vc = ViewConfiguration.get(context);
    mTouchSlop = vc.getScaledTouchSlop();
    mMaximumVelocity = vc.getScaledMaximumFlingVelocity();
    mFlingVelocity = vc.getScaledMinimumFlingVelocity();
    mOverscrollDistance = getScaledOverscrollDistance(vc);

    mScroller = new Scroller(context);

    mIsVertical = true;

    mTempRect = new Rect();

    mArrowScrollFocusResult = new ArrowScrollFocusResult();

    mSelectorPosition = INVALID_POSITION;

    mSelectorRect = new Rect();

    mResurrectToPosition = INVALID_POSITION;

    mNextSelectedPosition = INVALID_POSITION;
    mNextSelectedRowId = INVALID_ROW_ID;
    mSelectedPosition = INVALID_POSITION;
    mSelectedRowId = INVALID_ROW_ID;
    mOldSelectedPosition = INVALID_POSITION;
    mOldSelectedRowId = INVALID_ROW_ID;

    mChoiceMode = ChoiceMode.NONE;

    mRecycler = new RecycleBin();

    mAreAllItemsSelectable = true;

    setClickable(true);
    setFocusableInTouchMode(true);
    setWillNotDraw(false);
    setAlwaysDrawnWithCacheEnabled(false);
    setWillNotDraw(false);
    setClipToPadding(false);

    ViewCompat.setOverScrollMode(this, ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TwoWayView, defStyle, 0);

    mDrawSelectorOnTop = a.getBoolean(R.styleable.TwoWayView_android_drawSelectorOnTop, false);

    Drawable d = a.getDrawable(R.styleable.TwoWayView_android_listSelector);
    if (d != null) {
        setSelector(d);
    }

    int orientation = a.getInt(R.styleable.TwoWayView_android_orientation, -1);
    if (orientation >= 0) {
        setOrientation(Orientation.values()[orientation]);
    }

    int choiceMode = a.getInt(R.styleable.TwoWayView_android_choiceMode, -1);
    if (choiceMode >= 0) {
        setChoiceMode(ChoiceMode.values()[choiceMode]);
    }

    a.recycle();
}