improve task moving animation. Fixes #1211

This commit is contained in:
Phillip Thelen 2019-08-23 13:41:51 +02:00
parent f588220df6
commit 40c3665c3a
3 changed files with 617 additions and 660 deletions

View file

@ -45,6 +45,7 @@ import javax.inject.Named
open class TaskRecyclerViewFragment : BaseFragment(), androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener {
var recyclerAdapter: TaskRecyclerViewAdapter? = null
var itemAnimator = SafeDefaultItemAnimator()
@field:[Inject Named(AppModule.NAMED_USER_ID)]
lateinit var userID: String
@Inject
@ -187,11 +188,15 @@ open class TaskRecyclerViewFragment : BaseFragment(), androidx.swiperefreshlayou
val movingTaskID = movingTaskID
if (fromPosition != null && movingTaskID != null) {
recyclerAdapter?.ignoreUpdates = true
itemAnimator.skipAnimations = true
compositeSubscription.add(taskRepository.updateTaskPosition(classType ?: "", movingTaskID, viewHolder.adapterPosition)
.delay(1, TimeUnit.SECONDS)
.observeOn(AndroidSchedulers.mainThread())
.subscribe(Consumer { recyclerAdapter?.ignoreUpdates = false
recyclerAdapter?.notifyDataSetChanged()}, RxErrorHandler.handleEmptyError()))
.subscribe(Consumer {
recyclerAdapter?.ignoreUpdates = false
recyclerAdapter?.notifyDataSetChanged()
itemAnimator.skipAnimations = false
}, RxErrorHandler.handleEmptyError()))
}
this.fromPosition = null
this.movingTaskID = null
@ -249,7 +254,7 @@ open class TaskRecyclerViewFragment : BaseFragment(), androidx.swiperefreshlayou
val bottomPadding = (recyclerView.paddingBottom + TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 60f, resources.displayMetrics)).toInt()
recyclerView.setPadding(0, 0, 0, bottomPadding)
recyclerView.itemAnimator = SafeDefaultItemAnimator()
recyclerView.itemAnimator = itemAnimator
refreshLayout.setOnRefreshListener(this)

View file

@ -1,657 +0,0 @@
package com.habitrpg.android.habitica.ui.helpers;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.TimeInterpolator;
import android.animation.ValueAnimator;
import androidx.annotation.NonNull;
import androidx.core.view.ViewCompat;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.SimpleItemAnimator;
import android.view.View;
import android.view.ViewPropertyAnimator;
import java.util.ArrayList;
import java.util.List;
/**
* Created by phillip on 02.10.17.
*/
public class SafeDefaultItemAnimator extends SimpleItemAnimator {
private static final boolean DEBUG = false;
private static TimeInterpolator sDefaultInterpolator;
private ArrayList<RecyclerView.ViewHolder> mPendingRemovals = new ArrayList<>();
private ArrayList<RecyclerView.ViewHolder> mPendingAdditions = new ArrayList<>();
private ArrayList<SafeDefaultItemAnimator.MoveInfo> mPendingMoves = new ArrayList<>();
private ArrayList<SafeDefaultItemAnimator.ChangeInfo> mPendingChanges = new ArrayList<>();
ArrayList<ArrayList<RecyclerView.ViewHolder>> mAdditionsList = new ArrayList<>();
ArrayList<ArrayList<SafeDefaultItemAnimator.MoveInfo>> mMovesList = new ArrayList<>();
ArrayList<ArrayList<SafeDefaultItemAnimator.ChangeInfo>> mChangesList = new ArrayList<>();
ArrayList<RecyclerView.ViewHolder> mAddAnimations = new ArrayList<>();
ArrayList<RecyclerView.ViewHolder> mMoveAnimations = new ArrayList<>();
ArrayList<RecyclerView.ViewHolder> mRemoveAnimations = new ArrayList<>();
ArrayList<RecyclerView.ViewHolder> mChangeAnimations = new ArrayList<>();
private static class MoveInfo {
public RecyclerView.ViewHolder holder;
public int fromX, fromY, toX, toY;
MoveInfo(RecyclerView.ViewHolder holder, int fromX, int fromY, int toX, int toY) {
this.holder = holder;
this.fromX = fromX;
this.fromY = fromY;
this.toX = toX;
this.toY = toY;
}
}
private static class ChangeInfo {
public RecyclerView.ViewHolder oldHolder, newHolder;
public int fromX, fromY, toX, toY;
private ChangeInfo(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder) {
this.oldHolder = oldHolder;
this.newHolder = newHolder;
}
ChangeInfo(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder,
int fromX, int fromY, int toX, int toY) {
this(oldHolder, newHolder);
this.fromX = fromX;
this.fromY = fromY;
this.toX = toX;
this.toY = toY;
}
@Override
public String toString() {
return "ChangeInfo{"
+ "oldHolder=" + oldHolder
+ ", newHolder=" + newHolder
+ ", fromX=" + fromX
+ ", fromY=" + fromY
+ ", toX=" + toX
+ ", toY=" + toY
+ '}';
}
}
@Override
public void runPendingAnimations() {
boolean removalsPending = !mPendingRemovals.isEmpty();
boolean movesPending = !mPendingMoves.isEmpty();
boolean changesPending = !mPendingChanges.isEmpty();
boolean additionsPending = !mPendingAdditions.isEmpty();
if (!removalsPending && !movesPending && !additionsPending && !changesPending) {
// nothing to animate
return;
}
// First, remove stuff
for (RecyclerView.ViewHolder holder : mPendingRemovals) {
animateRemoveImpl(holder);
}
mPendingRemovals.clear();
// Next, move stuff
if (movesPending) {
final ArrayList<SafeDefaultItemAnimator.MoveInfo> moves = new ArrayList<>();
moves.addAll(mPendingMoves);
mMovesList.add(moves);
mPendingMoves.clear();
Runnable mover = new Runnable() {
@Override
public void run() {
for (SafeDefaultItemAnimator.MoveInfo moveInfo : moves) {
animateMoveImpl(moveInfo.holder, moveInfo.fromX, moveInfo.fromY,
moveInfo.toX, moveInfo.toY);
}
moves.clear();
mMovesList.remove(moves);
}
};
if (removalsPending) {
RecyclerView.ViewHolder holder = moves.get(0).holder;
if (holder != null) {
View view = holder.itemView;
ViewCompat.postOnAnimationDelayed(view, mover, getRemoveDuration());
}
} else {
mover.run();
}
}
// Next, change stuff, to run in parallel with move animations
if (changesPending) {
final ArrayList<SafeDefaultItemAnimator.ChangeInfo> changes = new ArrayList<>();
changes.addAll(mPendingChanges);
mChangesList.add(changes);
mPendingChanges.clear();
Runnable changer = new Runnable() {
@Override
public void run() {
for (SafeDefaultItemAnimator.ChangeInfo change : changes) {
animateChangeImpl(change);
}
changes.clear();
mChangesList.remove(changes);
}
};
if (removalsPending) {
RecyclerView.ViewHolder holder = changes.get(0).oldHolder;
if (holder != null) {
ViewCompat.postOnAnimationDelayed(holder.itemView, changer, getRemoveDuration());
}
} else {
changer.run();
}
}
// Next, add stuff
if (additionsPending) {
final ArrayList<RecyclerView.ViewHolder> additions = new ArrayList<>();
additions.addAll(mPendingAdditions);
mAdditionsList.add(additions);
mPendingAdditions.clear();
Runnable adder = new Runnable() {
@Override
public void run() {
for (RecyclerView.ViewHolder holder : additions) {
animateAddImpl(holder);
}
additions.clear();
mAdditionsList.remove(additions);
}
};
if (removalsPending || movesPending || changesPending) {
long removeDuration = removalsPending ? getRemoveDuration() : 0;
long moveDuration = movesPending ? getMoveDuration() : 0;
long changeDuration = changesPending ? getChangeDuration() : 0;
long totalDelay = removeDuration + Math.max(moveDuration, changeDuration);
if (additions.get(0) != null) {
View view = additions.get(0).itemView;
ViewCompat.postOnAnimationDelayed(view, adder, totalDelay);
}
} else {
adder.run();
}
}
}
@Override
public boolean animateRemove(final RecyclerView.ViewHolder holder) {
resetAnimation(holder);
mPendingRemovals.add(holder);
return true;
}
private void animateRemoveImpl(final RecyclerView.ViewHolder holder) {
final View view = holder.itemView;
final ViewPropertyAnimator animation = view.animate();
mRemoveAnimations.add(holder);
animation.setDuration(getRemoveDuration()).alpha(0).setListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animator) {
dispatchRemoveStarting(holder);
}
@Override
public void onAnimationEnd(Animator animator) {
animation.setListener(null);
view.setAlpha(1);
dispatchRemoveFinished(holder);
mRemoveAnimations.remove(holder);
dispatchFinishedWhenDone();
}
}).start();
}
@Override
public boolean animateAdd(final RecyclerView.ViewHolder holder) {
resetAnimation(holder);
holder.itemView.setAlpha(0);
mPendingAdditions.add(holder);
return true;
}
void animateAddImpl(final RecyclerView.ViewHolder holder) {
final View view = holder.itemView;
final ViewPropertyAnimator animation = view.animate();
mAddAnimations.add(holder);
animation.alpha(1).setDuration(getAddDuration())
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animator) {
dispatchAddStarting(holder);
}
@Override
public void onAnimationCancel(Animator animator) {
view.setAlpha(1);
}
@Override
public void onAnimationEnd(Animator animator) {
animation.setListener(null);
dispatchAddFinished(holder);
mAddAnimations.remove(holder);
dispatchFinishedWhenDone();
}
}).start();
}
@Override
public boolean animateMove(final RecyclerView.ViewHolder holder, int fromX, int fromY,
int toX, int toY) {
final View view = holder.itemView;
fromX += (int) holder.itemView.getTranslationX();
fromY += (int) holder.itemView.getTranslationY();
resetAnimation(holder);
int deltaX = toX - fromX;
int deltaY = toY - fromY;
if (deltaX == 0 && deltaY == 0) {
dispatchMoveFinished(holder);
return false;
}
if (deltaX != 0) {
view.setTranslationX(-deltaX);
}
if (deltaY != 0) {
view.setTranslationY(-deltaY);
}
mPendingMoves.add(new SafeDefaultItemAnimator.MoveInfo(holder, fromX, fromY, toX, toY));
return true;
}
void animateMoveImpl(final RecyclerView.ViewHolder holder, int fromX, int fromY, int toX, int toY) {
final View view = holder.itemView;
final int deltaX = toX - fromX;
final int deltaY = toY - fromY;
if (deltaX != 0) {
view.animate().translationX(0);
}
if (deltaY != 0) {
view.animate().translationY(0);
}
// TODO: make EndActions end listeners instead, since end actions aren't called when
// vpas are canceled (and can't end them. why?)
// need listener functionality in VPACompat for this. Ick.
final ViewPropertyAnimator animation = view.animate();
mMoveAnimations.add(holder);
animation.setDuration(getMoveDuration()).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animator) {
dispatchMoveStarting(holder);
}
@Override
public void onAnimationCancel(Animator animator) {
if (deltaX != 0) {
view.setTranslationX(0);
}
if (deltaY != 0) {
view.setTranslationY(0);
}
}
@Override
public void onAnimationEnd(Animator animator) {
animation.setListener(null);
dispatchMoveFinished(holder);
mMoveAnimations.remove(holder);
dispatchFinishedWhenDone();
}
}).start();
}
@Override
public boolean animateChange(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder,
int fromX, int fromY, int toX, int toY) {
if (oldHolder == newHolder) {
// Don't know how to run change animations when the same view holder is re-used.
// run a move animation to handle position changes.
return animateMove(oldHolder, fromX, fromY, toX, toY);
}
final float prevTranslationX = oldHolder.itemView.getTranslationX();
final float prevTranslationY = oldHolder.itemView.getTranslationY();
final float prevAlpha = oldHolder.itemView.getAlpha();
resetAnimation(oldHolder);
int deltaX = (int) (toX - fromX - prevTranslationX);
int deltaY = (int) (toY - fromY - prevTranslationY);
// recover prev translation state after ending animation
oldHolder.itemView.setTranslationX(prevTranslationX);
oldHolder.itemView.setTranslationY(prevTranslationY);
oldHolder.itemView.setAlpha(prevAlpha);
if (newHolder != null) {
// carry over translation values
resetAnimation(newHolder);
newHolder.itemView.setTranslationX(-deltaX);
newHolder.itemView.setTranslationY(-deltaY);
newHolder.itemView.setAlpha(0);
}
mPendingChanges.add(new SafeDefaultItemAnimator.ChangeInfo(oldHolder, newHolder, fromX, fromY, toX, toY));
return true;
}
void animateChangeImpl(final SafeDefaultItemAnimator.ChangeInfo changeInfo) {
final RecyclerView.ViewHolder holder = changeInfo.oldHolder;
final View view = holder == null ? null : holder.itemView;
final RecyclerView.ViewHolder newHolder = changeInfo.newHolder;
final View newView = newHolder != null ? newHolder.itemView : null;
if (view != null) {
final ViewPropertyAnimator oldViewAnim = view.animate().setDuration(
getChangeDuration());
mChangeAnimations.add(changeInfo.oldHolder);
oldViewAnim.translationX(changeInfo.toX - changeInfo.fromX);
oldViewAnim.translationY(changeInfo.toY - changeInfo.fromY);
oldViewAnim.alpha(0).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animator) {
dispatchChangeStarting(changeInfo.oldHolder, true);
}
@Override
public void onAnimationEnd(Animator animator) {
oldViewAnim.setListener(null);
view.setAlpha(1);
view.setTranslationX(0);
view.setTranslationY(0);
dispatchChangeFinished(changeInfo.oldHolder, true);
mChangeAnimations.remove(changeInfo.oldHolder);
dispatchFinishedWhenDone();
}
}).start();
}
if (newView != null) {
final ViewPropertyAnimator newViewAnimation = newView.animate();
mChangeAnimations.add(changeInfo.newHolder);
newViewAnimation.translationX(0).translationY(0).setDuration(getChangeDuration())
.alpha(1).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animator) {
dispatchChangeStarting(changeInfo.newHolder, false);
}
@Override
public void onAnimationEnd(Animator animator) {
newViewAnimation.setListener(null);
newView.setAlpha(1);
newView.setTranslationX(0);
newView.setTranslationY(0);
dispatchChangeFinished(changeInfo.newHolder, false);
mChangeAnimations.remove(changeInfo.newHolder);
dispatchFinishedWhenDone();
}
}).start();
}
}
private void endChangeAnimation(List<SafeDefaultItemAnimator.ChangeInfo> infoList, RecyclerView.ViewHolder item) {
for (int i = infoList.size() - 1; i >= 0; i--) {
SafeDefaultItemAnimator.ChangeInfo changeInfo = infoList.get(i);
if (endChangeAnimationIfNecessary(changeInfo, item)) {
if (changeInfo.oldHolder == null && changeInfo.newHolder == null) {
infoList.remove(changeInfo);
}
}
}
}
private void endChangeAnimationIfNecessary(SafeDefaultItemAnimator.ChangeInfo changeInfo) {
if (changeInfo.oldHolder != null) {
endChangeAnimationIfNecessary(changeInfo, changeInfo.oldHolder);
}
if (changeInfo.newHolder != null) {
endChangeAnimationIfNecessary(changeInfo, changeInfo.newHolder);
}
}
private boolean endChangeAnimationIfNecessary(SafeDefaultItemAnimator.ChangeInfo changeInfo, RecyclerView.ViewHolder item) {
boolean oldItem = false;
if (changeInfo.newHolder == item) {
changeInfo.newHolder = null;
} else if (changeInfo.oldHolder == item) {
changeInfo.oldHolder = null;
oldItem = true;
} else {
return false;
}
item.itemView.setAlpha(1);
item.itemView.setTranslationX(0);
item.itemView.setTranslationY(0);
dispatchChangeFinished(item, oldItem);
return true;
}
@Override
public void endAnimation(RecyclerView.ViewHolder item) {
final View view = item.itemView;
// this will trigger end callback which should set properties to their target values.
view.animate().cancel();
// TODO if some other animations are chained to end, how do we cancel them as well?
for (int i = mPendingMoves.size() - 1; i >= 0; i--) {
SafeDefaultItemAnimator.MoveInfo moveInfo = mPendingMoves.get(i);
if (moveInfo.holder == item) {
view.setTranslationY(0);
view.setTranslationX(0);
dispatchMoveFinished(item);
mPendingMoves.remove(i);
}
}
endChangeAnimation(mPendingChanges, item);
if (mPendingRemovals.remove(item)) {
view.setAlpha(1);
dispatchRemoveFinished(item);
}
if (mPendingAdditions.remove(item)) {
view.setAlpha(1);
dispatchAddFinished(item);
}
for (int i = mChangesList.size() - 1; i >= 0; i--) {
ArrayList<SafeDefaultItemAnimator.ChangeInfo> changes = mChangesList.get(i);
endChangeAnimation(changes, item);
if (changes.isEmpty()) {
mChangesList.remove(i);
}
}
for (int i = mMovesList.size() - 1; i >= 0; i--) {
ArrayList<SafeDefaultItemAnimator.MoveInfo> moves = mMovesList.get(i);
for (int j = moves.size() - 1; j >= 0; j--) {
SafeDefaultItemAnimator.MoveInfo moveInfo = moves.get(j);
if (moveInfo.holder == item) {
view.setTranslationY(0);
view.setTranslationX(0);
dispatchMoveFinished(item);
moves.remove(j);
if (moves.isEmpty()) {
mMovesList.remove(i);
}
break;
}
}
}
for (int i = mAdditionsList.size() - 1; i >= 0; i--) {
ArrayList<RecyclerView.ViewHolder> additions = mAdditionsList.get(i);
if (additions.remove(item)) {
view.setAlpha(1);
dispatchAddFinished(item);
if (additions.isEmpty()) {
mAdditionsList.remove(i);
}
}
}
// animations should be ended by the cancel above.
//noinspection PointlessBooleanExpression,ConstantConditions
if (mRemoveAnimations.remove(item) && DEBUG) {
throw new IllegalStateException("after animation is cancelled, item should not be in "
+ "mRemoveAnimations list");
}
//noinspection PointlessBooleanExpression,ConstantConditions
if (mAddAnimations.remove(item) && DEBUG) {
throw new IllegalStateException("after animation is cancelled, item should not be in "
+ "mAddAnimations list");
}
//noinspection PointlessBooleanExpression,ConstantConditions
if (mChangeAnimations.remove(item) && DEBUG) {
throw new IllegalStateException("after animation is cancelled, item should not be in "
+ "mChangeAnimations list");
}
//noinspection PointlessBooleanExpression,ConstantConditions
if (mMoveAnimations.remove(item) && DEBUG) {
throw new IllegalStateException("after animation is cancelled, item should not be in "
+ "mMoveAnimations list");
}
dispatchFinishedWhenDone();
}
private void resetAnimation(RecyclerView.ViewHolder holder) {
if (sDefaultInterpolator == null) {
sDefaultInterpolator = new ValueAnimator().getInterpolator();
}
holder.itemView.animate().setInterpolator(sDefaultInterpolator);
endAnimation(holder);
}
@Override
public boolean isRunning() {
return (!mPendingAdditions.isEmpty()
|| !mPendingChanges.isEmpty()
|| !mPendingMoves.isEmpty()
|| !mPendingRemovals.isEmpty()
|| !mMoveAnimations.isEmpty()
|| !mRemoveAnimations.isEmpty()
|| !mAddAnimations.isEmpty()
|| !mChangeAnimations.isEmpty()
|| !mMovesList.isEmpty()
|| !mAdditionsList.isEmpty()
|| !mChangesList.isEmpty());
}
/**
* Check the state of currently pending and running animations. If there are none
* pending/running, call {@link #dispatchAnimationsFinished()} to notify any
* listeners.
*/
void dispatchFinishedWhenDone() {
if (!isRunning()) {
dispatchAnimationsFinished();
}
}
@Override
public void endAnimations() {
int count = mPendingMoves.size();
for (int i = count - 1; i >= 0; i--) {
SafeDefaultItemAnimator.MoveInfo item = mPendingMoves.get(i);
View view = item.holder.itemView;
view.setTranslationY(0);
view.setTranslationX(0);
dispatchMoveFinished(item.holder);
mPendingMoves.remove(i);
}
count = mPendingRemovals.size();
for (int i = count - 1; i >= 0; i--) {
RecyclerView.ViewHolder item = mPendingRemovals.get(i);
dispatchRemoveFinished(item);
mPendingRemovals.remove(i);
}
count = mPendingAdditions.size();
for (int i = count - 1; i >= 0; i--) {
RecyclerView.ViewHolder item = mPendingAdditions.get(i);
item.itemView.setAlpha(1);
dispatchAddFinished(item);
mPendingAdditions.remove(i);
}
count = mPendingChanges.size();
for (int i = count - 1; i >= 0; i--) {
endChangeAnimationIfNecessary(mPendingChanges.get(i));
}
mPendingChanges.clear();
if (!isRunning()) {
return;
}
int listCount = mMovesList.size();
for (int i = listCount - 1; i >= 0; i--) {
ArrayList<SafeDefaultItemAnimator.MoveInfo> moves = mMovesList.get(i);
count = moves.size();
for (int j = count - 1; j >= 0; j--) {
SafeDefaultItemAnimator.MoveInfo moveInfo = moves.get(j);
RecyclerView.ViewHolder item = moveInfo.holder;
View view = item.itemView;
view.setTranslationY(0);
view.setTranslationX(0);
dispatchMoveFinished(moveInfo.holder);
moves.remove(j);
if (moves.isEmpty()) {
mMovesList.remove(moves);
}
}
}
listCount = mAdditionsList.size();
for (int i = listCount - 1; i >= 0; i--) {
ArrayList<RecyclerView.ViewHolder> additions = mAdditionsList.get(i);
count = additions.size();
for (int j = count - 1; j >= 0; j--) {
RecyclerView.ViewHolder item = additions.get(j);
View view = item.itemView;
view.setAlpha(1);
dispatchAddFinished(item);
additions.remove(j);
if (additions.isEmpty()) {
mAdditionsList.remove(additions);
}
}
}
listCount = mChangesList.size();
for (int i = listCount - 1; i >= 0; i--) {
ArrayList<SafeDefaultItemAnimator.ChangeInfo> changes = mChangesList.get(i);
count = changes.size();
for (int j = count - 1; j >= 0; j--) {
endChangeAnimationIfNecessary(changes.get(j));
if (changes.isEmpty()) {
mChangesList.remove(changes);
}
}
}
cancelAll(mRemoveAnimations);
cancelAll(mMoveAnimations);
cancelAll(mAddAnimations);
cancelAll(mChangeAnimations);
dispatchAnimationsFinished();
}
void cancelAll(List<RecyclerView.ViewHolder> viewHolders) {
for (int i = viewHolders.size() - 1; i >= 0; i--) {
viewHolders.get(i).itemView.animate().cancel();
}
}
/**
* {@inheritDoc}
* <p>
* If the payload list is not empty, SafeDefaultItemAnimator returns <code>true</code>.
* When this is the case:
* <ul>
* <li>If you override {@link #animateChange(RecyclerView.ViewHolder, RecyclerView.ViewHolder, int, int, int, int)}, both
* ViewHolder arguments will be the same instance.
* </li>
* <li>
* If you are not overriding {@link #animateChange(RecyclerView.ViewHolder, RecyclerView.ViewHolder, int, int, int, int)},
* then SafeDefaultItemAnimator will call {@link #animateMove(RecyclerView.ViewHolder, int, int, int, int)} and
* run a move animation instead.
* </li>
* </ul>
*/
@Override
public boolean canReuseUpdatedViewHolder(@NonNull RecyclerView.ViewHolder viewHolder,
@NonNull List<Object> payloads) {
return !payloads.isEmpty() || super.canReuseUpdatedViewHolder(viewHolder, payloads);
}
}

View file

@ -0,0 +1,609 @@
package com.habitrpg.android.habitica.ui.helpers
import android.animation.Animator
import android.animation.AnimatorListenerAdapter
import android.animation.TimeInterpolator
import android.animation.ValueAnimator
import androidx.core.view.ViewCompat
import androidx.recyclerview.widget.RecyclerView
import androidx.recyclerview.widget.SimpleItemAnimator
import com.habitrpg.shared.habitica.LogLevel
import com.habitrpg.shared.habitica.Logger
import java.util.*
/**
* Created by phillip on 02.10.17.
*/
class SafeDefaultItemAnimator : SimpleItemAnimator() {
private val pendingRemovals = ArrayList<RecyclerView.ViewHolder>()
private val pendingAdditions = ArrayList<RecyclerView.ViewHolder>()
private val pendingMoves = ArrayList<MoveInfo>()
private val pendingChanges = ArrayList<ChangeInfo>()
private val additionsList = ArrayList<ArrayList<RecyclerView.ViewHolder>>()
private val movesList = ArrayList<ArrayList<MoveInfo>>()
private val changesList = ArrayList<ArrayList<ChangeInfo>>()
private val addAnimations = ArrayList<RecyclerView.ViewHolder>()
private val moveAnimations = ArrayList<RecyclerView.ViewHolder>()
private val removeAnimations = ArrayList<RecyclerView.ViewHolder>()
private val changeAnimations = ArrayList<RecyclerView.ViewHolder>()
var skipAnimations: Boolean = false
private class MoveInfo internal constructor(var holder: RecyclerView.ViewHolder?, internal var fromX: Int, internal var fromY: Int, internal var toX: Int, internal var toY: Int)
private class ChangeInfo private constructor(internal var oldHolder: RecyclerView.ViewHolder?, internal var newHolder: RecyclerView.ViewHolder?) {
internal var fromX: Int = 0
internal var fromY: Int = 0
internal var toX: Int = 0
internal var toY: Int = 0
internal constructor(oldHolder: RecyclerView.ViewHolder, newHolder: RecyclerView.ViewHolder,
fromX: Int, fromY: Int, toX: Int, toY: Int) : this(oldHolder, newHolder) {
this.fromX = fromX
this.fromY = fromY
this.toX = toX
this.toY = toY
}
override fun toString(): String {
return ("ChangeInfo{"
+ "oldHolder=" + oldHolder
+ ", newHolder=" + newHolder
+ ", fromX=" + fromX
+ ", fromY=" + fromY
+ ", toX=" + toX
+ ", toY=" + toY
+ '}'.toString())
}
}
override fun runPendingAnimations() {
val removalsPending = pendingRemovals.isNotEmpty()
val movesPending = pendingMoves.isNotEmpty()
val changesPending = pendingChanges.isNotEmpty()
val additionsPending = pendingAdditions.isNotEmpty()
if (!removalsPending && !movesPending && !additionsPending && !changesPending) {
// nothing to animate
return
}
// First, remove stuff
for (holder in pendingRemovals) {
animateRemoveImpl(holder)
}
if (skipAnimations) {
return
}
pendingRemovals.clear()
// Next, move stuff
if (movesPending) {
val moves = ArrayList(pendingMoves)
movesList.add(moves)
pendingMoves.clear()
val mover = Runnable {
for (moveInfo in moves) {
moveInfo.holder?.let { animateMoveImpl(it, moveInfo.fromX, moveInfo.fromY,
moveInfo.toX, moveInfo.toY) }
}
moves.clear()
movesList.remove(moves)
}
if (removalsPending) {
val holder = moves[0].holder
if (holder != null) {
val view = holder.itemView
ViewCompat.postOnAnimationDelayed(view, mover, removeDuration)
}
} else {
mover.run()
}
}
// Next, change stuff, to run in parallel with move animations
if (changesPending) {
val changes = ArrayList(pendingChanges)
changesList.add(changes)
pendingChanges.clear()
val changer = Runnable {
for (change in changes) {
animateChangeImpl(change)
}
changes.clear()
changesList.remove(changes)
}
if (removalsPending) {
val holder = changes[0].oldHolder
if (holder != null) {
ViewCompat.postOnAnimationDelayed(holder.itemView, changer, removeDuration)
}
} else {
changer.run()
}
}
// Next, add stuff
if (additionsPending) {
val additions = ArrayList(pendingAdditions)
additionsList.add(additions)
pendingAdditions.clear()
val adder = Runnable {
for (holder in additions) {
animateAddImpl(holder)
}
additions.clear()
additionsList.remove(additions)
}
if (removalsPending || movesPending || changesPending) {
val removeDuration = if (removalsPending) removeDuration else 0
val moveDuration = if (movesPending) moveDuration else 0
val changeDuration = if (changesPending) changeDuration else 0
val totalDelay = removeDuration + moveDuration.coerceAtLeast(changeDuration)
if (additions[0] != null) {
val view = additions[0].itemView
ViewCompat.postOnAnimationDelayed(view, adder, totalDelay)
}
} else {
adder.run()
}
}
}
override fun animateRemove(holder: RecyclerView.ViewHolder): Boolean {
resetAnimation(holder)
pendingRemovals.add(holder)
return true
}
private fun animateRemoveImpl(holder: RecyclerView.ViewHolder) {
val view = holder.itemView
val animation = view.animate()
removeAnimations.add(holder)
animation.setDuration(removeDuration).alpha(0f).setListener(
object : AnimatorListenerAdapter() {
override fun onAnimationStart(animator: Animator) {
dispatchRemoveStarting(holder)
}
override fun onAnimationEnd(animator: Animator) {
animation.setListener(null)
view.alpha = 1f
dispatchRemoveFinished(holder)
removeAnimations.remove(holder)
dispatchFinishedWhenDone()
}
}).start()
}
override fun animateAdd(holder: RecyclerView.ViewHolder): Boolean {
resetAnimation(holder)
holder.itemView.alpha = 0f
pendingAdditions.add(holder)
return true
}
private fun animateAddImpl(holder: RecyclerView.ViewHolder) {
val view = holder.itemView
val animation = view.animate()
addAnimations.add(holder)
animation.alpha(1f).setDuration(addDuration)
.setListener(object : AnimatorListenerAdapter() {
override fun onAnimationStart(animator: Animator) {
dispatchAddStarting(holder)
}
override fun onAnimationCancel(animator: Animator) {
view.alpha = 1f
}
override fun onAnimationEnd(animator: Animator) {
animation.setListener(null)
dispatchAddFinished(holder)
addAnimations.remove(holder)
dispatchFinishedWhenDone()
}
}).start()
}
override fun animateMove(holder: RecyclerView.ViewHolder, fromX: Int, fromY: Int,
toX: Int, toY: Int): Boolean {
var newFromX = fromX
var newFromY = fromY
val view = holder.itemView
newFromX += holder.itemView.translationX.toInt()
newFromY += holder.itemView.translationY.toInt()
resetAnimation(holder)
val deltaX = toX - newFromX
val deltaY = toY - newFromY
if (deltaX == 0 && deltaY == 0) {
dispatchMoveFinished(holder)
return false
}
if (deltaX != 0) {
view.translationX = (-deltaX).toFloat()
}
if (deltaY != 0) {
view.translationY = (-deltaY).toFloat()
}
Logger.log(LogLevel.INFO, "Moving1", "$toX, $fromX, $deltaX")
Logger.log(LogLevel.INFO, "Moving1", "$toX, $fromX, $deltaX")
pendingMoves.add(MoveInfo(holder, newFromX, newFromY, toX, toY))
return true
}
private fun animateMoveImpl(holder: RecyclerView.ViewHolder, fromX: Int, fromY: Int, toX: Int, toY: Int) {
val view = holder.itemView
val deltaX = toX - fromX
val deltaY = toY - fromY
if (deltaX != 0) {
view.animate().translationX(0f)
}
if (deltaY != 0) {
view.animate().translationY(0f)
}
Logger.log(LogLevel.INFO, "Moving", "$toX, $fromX, $deltaX")
Logger.log(LogLevel.INFO, "Moving", "$toX, $fromX, $deltaX")
// vpas are canceled (and can't end them. why?)
// need listener functionality in VPACompat for this. Ick.
val animation = view.animate()
moveAnimations.add(holder)
animation.setDuration(moveDuration).setListener(object : AnimatorListenerAdapter() {
override fun onAnimationStart(animator: Animator) {
dispatchMoveStarting(holder)
}
override fun onAnimationCancel(animator: Animator) {
if (deltaX != 0) {
view.translationX = 0f
}
if (deltaY != 0) {
view.translationY = 0f
}
}
override fun onAnimationEnd(animator: Animator) {
animation.setListener(null)
dispatchMoveFinished(holder)
moveAnimations.remove(holder)
dispatchFinishedWhenDone()
}
}).start()
}
override fun animateChange(oldHolder: RecyclerView.ViewHolder, newHolder: RecyclerView.ViewHolder?,
fromX: Int, fromY: Int, toX: Int, toY: Int): Boolean {
if (oldHolder === newHolder) {
// Don't know how to run change animations when the same view holder is re-used.
// run a move animation to handle position changes.
return animateMove(oldHolder, fromX, fromY, toX, toY)
}
val prevTranslationX = oldHolder.itemView.translationX
val prevTranslationY = oldHolder.itemView.translationY
val prevAlpha = oldHolder.itemView.alpha
resetAnimation(oldHolder)
val deltaX = (toX.toFloat() - fromX.toFloat() - prevTranslationX).toInt()
val deltaY = (toY.toFloat() - fromY.toFloat() - prevTranslationY).toInt()
// recover prev translation state after ending animation
oldHolder.itemView.translationX = prevTranslationX
oldHolder.itemView.translationY = prevTranslationY
oldHolder.itemView.alpha = prevAlpha
if (newHolder != null) {
// carry over translation values
resetAnimation(newHolder)
newHolder.itemView.translationX = (-deltaX).toFloat()
newHolder.itemView.translationY = (-deltaY).toFloat()
newHolder.itemView.alpha = 0f
}
Logger.log(LogLevel.INFO, "Changing", "$toX, $fromX, $deltaX")
Logger.log(LogLevel.INFO, "Changing", "$toX, $fromX, $deltaX")
newHolder?.let { pendingChanges.add(ChangeInfo(oldHolder, it, fromX, fromY, toX, toY)) }
return true
}
private fun animateChangeImpl(changeInfo: ChangeInfo) {
val holder = changeInfo.oldHolder
val view = holder?.itemView
val newHolder = changeInfo.newHolder
val newView = newHolder?.itemView
if (view != null) {
val oldViewAnim = view.animate().setDuration(
changeDuration)
changeInfo.oldHolder?.let { changeAnimations.add(it) }
oldViewAnim.translationX((changeInfo.toX - changeInfo.fromX).toFloat())
oldViewAnim.translationY((changeInfo.toY - changeInfo.fromY).toFloat())
oldViewAnim.alpha(0f).setListener(object : AnimatorListenerAdapter() {
override fun onAnimationStart(animator: Animator) {
dispatchChangeStarting(changeInfo.oldHolder, true)
}
override fun onAnimationEnd(animator: Animator) {
oldViewAnim.setListener(null)
view.alpha = 1f
view.translationX = 0f
view.translationY = 0f
dispatchChangeFinished(changeInfo.oldHolder, true)
changeInfo.oldHolder?.let { changeAnimations.add(it) }
dispatchFinishedWhenDone()
}
}).start()
}
if (newView != null) {
val newViewAnimation = newView.animate()
changeInfo.newHolder?.let { changeAnimations.add(it) }
newViewAnimation.translationX(0f).translationY(0f).setDuration(changeDuration)
.alpha(1f).setListener(object : AnimatorListenerAdapter() {
override fun onAnimationStart(animator: Animator) {
dispatchChangeStarting(changeInfo.newHolder, false)
}
override fun onAnimationEnd(animator: Animator) {
newViewAnimation.setListener(null)
newView.alpha = 1f
newView.translationX = 0f
newView.translationY = 0f
dispatchChangeFinished(changeInfo.newHolder, false)
changeInfo.newHolder?.let { changeAnimations.add(it) }
dispatchFinishedWhenDone()
}
}).start()
}
}
private fun endChangeAnimation(infoList: MutableList<ChangeInfo>, item: RecyclerView.ViewHolder) {
for (i in infoList.indices.reversed()) {
val changeInfo = infoList[i]
if (endChangeAnimationIfNecessary(changeInfo, item)) {
if (changeInfo.oldHolder == null && changeInfo.newHolder == null) {
infoList.remove(changeInfo)
}
}
}
}
private fun endChangeAnimationIfNecessary(changeInfo: ChangeInfo) {
if (changeInfo.oldHolder != null) {
endChangeAnimationIfNecessary(changeInfo, changeInfo.oldHolder)
}
if (changeInfo.newHolder != null) {
endChangeAnimationIfNecessary(changeInfo, changeInfo.newHolder)
}
}
private fun endChangeAnimationIfNecessary(changeInfo: ChangeInfo, item: RecyclerView.ViewHolder?): Boolean {
var oldItem = false
when {
changeInfo.newHolder === item -> changeInfo.newHolder = null
changeInfo.oldHolder === item -> {
changeInfo.oldHolder = null
oldItem = true
}
else -> return false
}
item?.itemView?.alpha = 1f
item?.itemView?.translationX = 0f
item?.itemView?.translationY = 0f
dispatchChangeFinished(item, oldItem)
return true
}
override fun endAnimation(item: RecyclerView.ViewHolder) {
val view = item.itemView
// this will trigger end callback which should set properties to their target values.
view.animate().cancel()
// TODO if some other animations are chained to end, how do we cancel them as well?
for (i in pendingMoves.indices.reversed()) {
val moveInfo = pendingMoves[i]
if (moveInfo.holder === item) {
view.translationY = 0f
view.translationX = 0f
dispatchMoveFinished(item)
pendingMoves.removeAt(i)
}
}
endChangeAnimation(pendingChanges, item)
if (pendingRemovals.remove(item)) {
view.alpha = 1f
dispatchRemoveFinished(item)
}
if (pendingAdditions.remove(item)) {
view.alpha = 1f
dispatchAddFinished(item)
}
for (i in changesList.indices.reversed()) {
val changes = changesList[i]
endChangeAnimation(changes, item)
if (changes.isEmpty()) {
changesList.removeAt(i)
}
}
for (i in movesList.indices.reversed()) {
val moves = movesList[i]
for (j in moves.indices.reversed()) {
val moveInfo = moves[j]
if (moveInfo.holder === item) {
view.translationY = 0f
view.translationX = 0f
dispatchMoveFinished(item)
moves.removeAt(j)
if (moves.isEmpty()) {
movesList.removeAt(i)
}
break
}
}
}
for (i in additionsList.indices.reversed()) {
val additions = additionsList[i]
if (additions.remove(item)) {
view.alpha = 1f
dispatchAddFinished(item)
if (additions.isEmpty()) {
additionsList.removeAt(i)
}
}
}
// animations should be ended by the cancel above.
check(!(removeAnimations.remove(item) && DEBUG)) { "after animation is cancelled, item should not be in " + "removeAnimations list" }
check(!(addAnimations.remove(item) && DEBUG)) { "after animation is cancelled, item should not be in " + "addAnimations list" }
check(!(changeAnimations.remove(item) && DEBUG)) { "after animation is cancelled, item should not be in " + "changeAnimations list" }
check(!(moveAnimations.remove(item) && DEBUG)) { "after animation is cancelled, item should not be in " + "moveAnimations list" }
dispatchFinishedWhenDone()
}
private fun resetAnimation(holder: RecyclerView.ViewHolder) {
if (sDefaultInterpolator == null) {
sDefaultInterpolator = ValueAnimator().interpolator
}
holder.itemView.animate().interpolator = sDefaultInterpolator
endAnimation(holder)
}
override fun isRunning(): Boolean {
return (pendingAdditions.isNotEmpty()
|| pendingChanges.isNotEmpty()
|| pendingMoves.isNotEmpty()
|| pendingRemovals.isNotEmpty()
|| moveAnimations.isNotEmpty()
|| removeAnimations.isNotEmpty()
|| addAnimations.isNotEmpty()
|| changeAnimations.isNotEmpty()
|| movesList.isNotEmpty()
|| additionsList.isNotEmpty()
|| changesList.isNotEmpty())
}
/**
* Check the state of currently pending and running animations. If there are none
* pending/running, call [.dispatchAnimationsFinished] to notify any
* listeners.
*/
private fun dispatchFinishedWhenDone() {
if (!isRunning) {
dispatchAnimationsFinished()
}
}
override fun endAnimations() {
var count = pendingMoves.size
for (i in count - 1 downTo 0) {
val item = pendingMoves[i]
val view = item.holder?.itemView
view?.translationY = 0f
view?.translationX = 0f
dispatchMoveFinished(item.holder)
pendingMoves.removeAt(i)
}
count = pendingRemovals.size
for (i in count - 1 downTo 0) {
val item = pendingRemovals[i]
dispatchRemoveFinished(item)
pendingRemovals.removeAt(i)
}
count = pendingAdditions.size
for (i in count - 1 downTo 0) {
val item = pendingAdditions[i]
item.itemView.alpha = 1f
dispatchAddFinished(item)
pendingAdditions.removeAt(i)
}
count = pendingChanges.size
for (i in count - 1 downTo 0) {
endChangeAnimationIfNecessary(pendingChanges[i])
}
pendingChanges.clear()
if (!isRunning) {
return
}
var listCount = movesList.size
for (i in listCount - 1 downTo 0) {
val moves = movesList[i]
count = moves.size
for (j in count - 1 downTo 0) {
val moveInfo = moves[j]
val item = moveInfo.holder
val view = item?.itemView
view?.translationY = 0f
view?.translationX = 0f
dispatchMoveFinished(moveInfo.holder)
moves.removeAt(j)
if (moves.isEmpty()) {
movesList.remove(moves)
}
}
}
listCount = additionsList.size
for (i in listCount - 1 downTo 0) {
val additions = additionsList[i]
count = additions.size
for (j in count - 1 downTo 0) {
val item = additions[j]
val view = item.itemView
view.alpha = 1f
dispatchAddFinished(item)
additions.removeAt(j)
if (additions.isEmpty()) {
additionsList.remove(additions)
}
}
}
listCount = changesList.size
for (i in listCount - 1 downTo 0) {
val changes = changesList[i]
count = changes.size
for (j in count - 1 downTo 0) {
endChangeAnimationIfNecessary(changes[j])
if (changes.isEmpty()) {
changesList.remove(changes)
}
}
}
cancelAll(removeAnimations)
cancelAll(moveAnimations)
cancelAll(addAnimations)
cancelAll(changeAnimations)
dispatchAnimationsFinished()
}
private fun cancelAll(viewHolders: List<RecyclerView.ViewHolder>) {
for (i in viewHolders.indices.reversed()) {
viewHolders[i].itemView.animate().cancel()
}
}
/**
* {@inheritDoc}
*
*
* If the payload list is not empty, SafeDefaultItemAnimator returns `true`.
* When this is the case:
*
* * If you override [.animateChange], both
* ViewHolder arguments will be the same instance.
*
* *
* If you are not overriding [.animateChange],
* then SafeDefaultItemAnimator will call [.animateMove] and
* run a move animation instead.
*
*
*/
override fun canReuseUpdatedViewHolder(viewHolder: RecyclerView.ViewHolder,
payloads: List<Any>): Boolean {
return payloads.isNotEmpty() || super.canReuseUpdatedViewHolder(viewHolder, payloads)
}
companion object {
private const val DEBUG = false
private var sDefaultInterpolator: TimeInterpolator? = null
}
}