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.kinth.mmspeed.ui.TwoWayView.java

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

    mNeedSync = false;//  w  ww .  ja  va2 s  . 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.cmg.android.cmgpdf.view.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  .  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.ruyigu.freeart.ui.widget.HorizontalListView.java

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

    mNeedSync = false;//www .j  av  a2 s. 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.HorizontalListView, defStyle, 0);
    //        initializeScrollbars(a);

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

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

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

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

    a.recycle();

    updateScrollbarsDirection();
}

From source file:com.artifex.mupdf.view.ThumbnailViews.java

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

    mNeedSync = false;/* w w  w  .ja  v  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.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.vreal.libs.TwoWayView.java

public TwoWayView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    //      c=context;
    mNeedSync = false;//from  w  ww.  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);
    //      initializeScrollbars(a,context);

    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:tanglie.mystaggeredgridview.StaggeredGridView.java

/**
 *
 * @param deltaY Pixels that content should move by
 * @return true if the movement completed, false if it was stopped prematurely.
 *//*w  ww.ja v  a2  s.co  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) + mItemMargin;
            up = true;
        } else {
            //                overhang = fillDown(mFirstPosition + getChildCount(), allowOverhang) + mItemMargin;
            overhang = 0;
            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.rajul.staggeredgridview.StaggeredGridView.java

/**
 * @param deltaY Pixels that content should move by
 * @return true if the movement completed, false if it was stopped
 *         prematurely./*from www.ja v  a2s .  com*/
 */
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();
    // TODO
    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:cn.iterlog.myapplication.widget.overscroll.StaggeredGridView.java

/**
 *
 * @param deltaY Pixels that content should move by
 * @return true if the movement completed, false if it was stopped prematurely.
 *//*from  w w  w . j  av a  2  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) + mItemMargin;
            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:chan.android.app.bitwise.util.StaggeredGridView.java

/**
 * @param deltaY Pixels that content should move by
 * @return true if the movement completed, false if it was stopped prematurely.
 */// ww  w .  j  av  a2s  .c o  m
private boolean trackMotionScroll(int deltaY, boolean allowOverScroll) {
    final boolean contentFits = contentFits();
    final int allowOverhang = Math.abs(deltaY);

    final int overScrolledBy;
    int movedBy;

    if (!contentFits) {
        final int overhang;
        final boolean up;
        mPopulating = true;

        if (deltaY > 0) {
            overhang = fillUp(mFirstPosition - 1, allowOverhang) + mItemMargin;
            up = true;
        } else {
            overhang = fillDown(mFirstPosition + getChildCount(), allowOverhang) + mItemMargin;
            up = false;
        }

        movedBy = Math.min(overhang, allowOverhang);
        if (movedBy < 0) {
            movedBy = 0;
        }

        if (movedBy == 0) {
            if (up) {
                mGetToTop = true;
                lazyload = false;
            } else {
                mGetToTop = false;
                lazyload = true;

                if (!loadlock) {
                    mLoadListener.onLoadmore();
                    loadlock = true;
                }
            }
        } else {
            mGetToTop = false;
            lazyload = true;
        }

        offsetChildren(up ? movedBy : -movedBy);
        if (getChildCount() > MAX_CHILD_COUNT) {
            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.acbelter.scheduleview.ScheduleView.java

private void drawEdgeEffects(Canvas canvas) {
    boolean needsInvalidate = false;

    final int overScrollMode = ViewCompat.getOverScrollMode(this);
    if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
            || overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS) {
        if (!mTopEdgeEffect.isFinished()) {
            int saveCount = canvas.save();
            int width = mViewWidth - getPaddingLeft() - getPaddingRight();
            int height = mViewHeight - getPaddingTop() - getPaddingBottom();

            canvas.translate(0, getPaddingTop());

            mTopEdgeEffect.setSize(width, height);
            needsInvalidate |= mTopEdgeEffect.draw(canvas);
            canvas.restoreToCount(saveCount);
        }/*from   w w w  .  ja va 2s .  c  o m*/
        if (!mBottomEdgeEffect.isFinished()) {
            int saveCount = canvas.save();
            int width = mViewWidth - getPaddingLeft() - getPaddingRight();
            int height = mViewHeight - getPaddingTop() - getPaddingBottom();

            canvas.translate(mViewWidth, mViewHeight - getPaddingBottom());
            canvas.rotate(180);

            mBottomEdgeEffect.setSize(width, height);
            needsInvalidate |= mBottomEdgeEffect.draw(canvas);
            canvas.restoreToCount(saveCount);
        }
    } else {
        mTopEdgeEffect.finish();
        mBottomEdgeEffect.finish();
    }

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