Example usage for com.facebook.react.views.scroll ReactScrollViewHelper emitScrollEndDragEvent

Introduction

In this page you can find the example usage for com.facebook.react.views.scroll ReactScrollViewHelper emitScrollEndDragEvent.

Prototype

public static void emitScrollEndDragEvent(ViewGroup scrollView, float xVelocity, float yVelocity) 

Source Link

Usage

From source file:com.rnnestedscrollview.ReactNestedScrollView.java

License:MIT License

@Override
public boolean onTouchEvent(MotionEvent ev) {
    if (!mScrollEnabled) {
        return false;
    }/*  w w  w .  j a va 2  s. com*/

    mVelocityHelper.calculateVelocity(ev);
    int action = ev.getAction() & MotionEvent.ACTION_MASK;
    if (action == MotionEvent.ACTION_UP && mDragging) {
        float velocityX = mVelocityHelper.getXVelocity();
        float velocityY = mVelocityHelper.getYVelocity();
        ReactScrollViewHelper.emitScrollEndDragEvent(this, velocityX, velocityY);
        mDragging = false;
        // After the touch finishes, we may need to do some scrolling afterwards either as a result
        // of a fling or because we need to page align the content
        handlePostTouchScrolling(Math.round(velocityX), Math.round(velocityY));
    }

    return super.onTouchEvent(ev);
}

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