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[feature] Enable delay before items become draggable #20

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[feature] Enable delay before items become draggable #20

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17 changes: 14 additions & 3 deletions Library/src/main/java/com/emtronics/dragsortrecycler/DragSortRecycler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,7 @@ public class DragSortRecycler extends RecyclerView.ItemDecoration implements Rec
@Nullable
OnDragStateChangedListener dragStateChangedListener;

private long pressDelayMillis = 0;


public interface OnItemMovedListener
Expand Down Expand Up @@ -138,6 +139,10 @@ public void setAutoScrollSpeed(float speed)
autoScrollSpeed = speed;
}

public void setPressDelayMillis(long pressDelayMillis) {
this.pressDelayMillis = pressDelayMillis;
}

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView rv, RecyclerView.State state) {
super.getItemOffsets(outRect, view, rv, state);
Expand All @@ -149,7 +154,7 @@ public void getItemOffsets(Rect outRect, View view, RecyclerView rv, RecyclerVie
{
int itemPos = rv.getChildPosition(view);
debugLog("itemPos =" + itemPos);

if(!canDragOver(itemPos)) {
return;
}
Expand Down Expand Up @@ -321,8 +326,9 @@ else if (viewHandleId != -1)
debugLog("handlePos = " + handlePos[0] + " " + handlePos[1]);
}

long eventDuration = e.getEventTime() - e.getDownTime();

if (dragging)
if (dragging && eventDuration >= pressDelayMillis)
{
debugLog("Started Drag");

Expand Down Expand Up @@ -397,6 +403,11 @@ else if (fingerY < (rv.getHeight() * autoScrollWindow))
rv.invalidateItemDecorations();// Redraw
}

@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

}

private void setIsDragging(final boolean dragging) {
if(dragging != isDragging) {
isDragging = dragging;
Expand Down Expand Up @@ -439,7 +450,7 @@ public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
fingerAnchorY -= dy;
}
};

/**
*
*
Expand Down
1 change: 1 addition & 0 deletions testdragsortrecycler/src/main/java/com/emtronics/testdragsortrecycler/MainActivity.java
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Expand Up @@ -53,6 +53,7 @@ protected void onCreate(Bundle savedInstanceState) {
dragSortRecycler.setFloatingBgColor(0x800000FF);
dragSortRecycler.setAutoScrollSpeed(0.3f);
dragSortRecycler.setAutoScrollWindow(0.1f);
dragSortRecycler.setPressDelayMillis(350);

dragSortRecycler.setOnItemMovedListener(new DragSortRecycler.OnItemMovedListener() {
@Override
Expand Down