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Fix NPE in onScroll #3

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Fix NPE in onScroll #3

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4 changes: 4 additions & 0 deletions library/src/com/mobeta/android/dslv/DragSortController.java
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Original file line number Diff line number Diff line change
Expand Up @@ -382,6 +382,10 @@ public boolean onDown(MotionEvent ev) {
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {

if (e1 == null || e2 == null) {
return false;
}

final int x1 = (int) e1.getX();
final int y1 = (int) e1.getY();
final int x2 = (int) e2.getX();
Expand Down