Java Code Examples for android.widget.Scroller#fling()

The following examples show how to use android.widget.Scroller#fling() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: GravitySnapHelper.java From GravitySnapHelper with Apache License 2.0

6 votes

@Override
@NonNull
public int[] calculateScrollDistance(int velocityX, int velocityY) {
    if (recyclerView == null
            || (verticalHelper == null && horizontalHelper == null)
            || (maxFlingDistance == FLING_DISTANCE_DISABLE
            && maxFlingSizeFraction == FLING_SIZE_FRACTION_DISABLE)) {
        return super.calculateScrollDistance(velocityX, velocityY);
    }
    final int[] out = new int[2];
    Scroller scroller = new Scroller(recyclerView.getContext(),
            new DecelerateInterpolator());
    int maxDistance = getFlingDistance();
    scroller.fling(0, 0, velocityX, velocityY,
            -maxDistance, maxDistance,
            -maxDistance, maxDistance);
    out[0] = scroller.getFinalX();
    out[1] = scroller.getFinalY();
    return out;
}

Example 2

Source File: GravitySnapHelper.java From SuntimesWidget with GNU General Public License v3.0

6 votes

@Override
@NonNull
public int[] calculateScrollDistance(int velocityX, int velocityY) {
    if (recyclerView == null
            || (verticalHelper == null && horizontalHelper == null)
            || (maxFlingDistance == FLING_DISTANCE_DISABLE
            && maxFlingSizeFraction == FLING_SIZE_FRACTION_DISABLE)) {
        return super.calculateScrollDistance(velocityX, velocityY);
    }
    final int[] out = new int[2];
    Scroller scroller = new Scroller(recyclerView.getContext(),
            new DecelerateInterpolator());
    int maxDistance = getFlingDistance();
    scroller.fling(0, 0, velocityX, velocityY,
            -maxDistance, maxDistance,
            -maxDistance, maxDistance);
    out[0] = scroller.getFinalX();
    out[1] = scroller.getFinalY();
    return out;
}

Example 3

Source File: TouchImageView.java From ploggy with GNU General Public License v3.0

5 votes

Fling(int velocityX, int velocityY) {
    setState(FLING);
    scroller = new Scroller(context);
    matrix.getValues(m);

    int startX = (int) m[Matrix.MTRANS_X];
    int startY = (int) m[Matrix.MTRANS_Y];
    int minX, maxX, minY, maxY;

    if (getImageWidth() > viewWidth) {
        minX = viewWidth - (int) getImageWidth();
        maxX = 0;

    } else {
        minX = maxX = startX;
    }

    if (getImageHeight() > viewHeight) {
        minY = viewHeight - (int) getImageHeight();
        maxY = 0;

    } else {
        minY = maxY = startY;
    }

    scroller.fling(startX, startY, velocityX, velocityY, minX,
            maxX, minY, maxY);
    currX = startX;
    currY = startY;
}