Gaps show in list occasionally when dragging

Sometimes gaps show up in the list when dragging as mentioned in https://github.com/deanmcpherson/react-native-sortable-listview/issues/2

I believe the fix for the gaps is to update onPanRepsonderRelease()'s last state assignment from

this.state.active = false;
this.state.hovering = false;

to

if (this.props._legacySupport) {
  this.state.active = false;
  this.state.hovering = false;
} else {
  this.setState({
    active: false,
    hovering: false
  });
}

to match the assignment further up to trigger a refresh.

I can submit a PR but I’ve not had a chance to test this across iOS/Android versions yet.

[kennykswan]

@RUIFERNANDE5 I was able to solve the gap issue by modifying line 301:

let hoveringIndex = this.order[this.state.hovering] || this.state.hovering;

to:

let hoveringIndex = this.order[this.state.hovering];

[chtrinh]

@nihgwu: i haven’t validated it for iOS hence the lack of the PR. Just wanted to inform everyone about this. Not sure if everyone would like a Platform guard here. e.g.

if (Platform.OS === "android") {
  let hoveringIndex = this.order[this.state.hovering] || this.state.hovering;
}