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cell.completedClosure = { listItem in
  self.decorateReadyToMove(for: cell, andAngle: 0.0)
  cell.leadingConstraint.constant = 0
  cell.trailingConstraint.constant = 0
  UIView.animate(withDuration: 0.3, delay: 0.0, usingSpringWithDamping: 1, initialSpringVelocity: 0.5, options: .curveLinear, animations: {
    cell.layoutIfNeeded()
  }, completion: { (_) in
    if(listItem.isCompleted) {
      cell.trailingConstraint.constant = cell.frame.width - self.markerWidth
    } else {

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func collectionView(_ collectionView: UICollectionView, canMoveItemAt indexPath: IndexPath) -> Bool {
  let item = listItemDataset.item(at: indexPath.row)
  return !item.isCompleted
}

func collectionView(_ collectionView: UICollectionView, moveItemAt sourceIndexPath: IndexPath, to destinationIndexPath: IndexPath) {
  listItemDataset.moveItem(from: sourceIndexPath.row, to: destinationIndexPath.row)
}

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func handleLongGesture(gesture: UILongPressGestureRecognizer) {
    switch(gesture.state) {
    //-----
    case .ended:
      if let cell = self.movingCell {
        UIView.animate(withDuration: 0.3, delay: 0.0, usingSpringWithDamping: 1, initialSpringVelocity: 0.5, options: .curveEaseIn, animations: {
          self.decorateResting(for: cell)
        }, completion: { (_) in

        })

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func handleLongGesture(gesture: UILongPressGestureRecognizer) {
    switch(gesture.state) {
    //---
    case .changed:
      let changedTo: CGPoint = gesture.location(in: collectionView)
      if let hitIndexpath = self.collectionView.indexPathForItem(at: changedTo) {
        let item = listItemDataset.item(at: hitIndexpath.row)
        if !item.isCompleted {
          collectionView.updateInteractiveMovementTargetPosition(changedTo)
          if let cell = movingCell {

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func handleLongGesture(gesture: UILongPressGestureRecognizer) {
    switch(gesture.state) {        
    case .began:
      movementStartLocation = gesture.location(in: collectionView)
      if let indexPath = self.collectionView.indexPathForItem(at: movementStartLocation!) {
        let cell = self.collectionView.cellForItem(at: indexPath) as! ListItemCell
        if let item = cell.listItem {
          if !item.isCompleted {
            let canBegin = collectionView.beginInteractiveMovementForItem(at: indexPath)
            if canBegin {

madhu314

package is.uncommon.playbook.android.motion;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.graphics.Outline;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.animation.FastOutSlowInInterpolator;

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<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rootContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

  <View android:id="@+id/fab" android:layout_width="56dp"
      android:layout_height="56dp"
      android:layout_gravity="bottom|right"

madhu314

package is.uncommon.playbook.android.motion;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.os.Bundle;
import android.support.v4.view.animation.FastOutLinearInInterpolator;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.support.v4.view.animation.LinearOutSlowInInterpolator;
import android.support.v7.app.AppCompatActivity;

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="is.uncommon.playbook.android.motion.MainActivity">

madhu314

package is.uncommon.playbook.android.motion;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PointF;
import android.graphics.RectF;