package com.lcodecore.tkrefreshlayout.processor;
import android.animation.Animator;
import android.animation.Animator.AnimatorListener;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.animation.DecelerateInterpolator;
import com.lcodecore.tkrefreshlayout.TwinklingRefreshLayout;
import com.lcodecore.tkrefreshlayout.utils.LogUtil;
import com.lcodecore.tkrefreshlayout.utils.ScrollingUtil;
import java.util.LinkedList;
import static android.view.View.GONE;
import static android.view.View.VISIBLE;
/**
* Created by lcodecore on 2016/11/26.
*/
public class AnimProcessor implements IAnimRefresh, IAnimOverScroll {
private TwinklingRefreshLayout.CoContext cp;
private static final float animFraction = 1f;
//动画的变化率
private DecelerateInterpolator decelerateInterpolator;
public AnimProcessor(TwinklingRefreshLayout.CoContext coProcessor) {
this.cp = coProcessor;
decelerateInterpolator = new DecelerateInterpolator(8);
}
private boolean scrollHeadLocked = false;
private boolean scrollBottomLocked = false;
public void scrollHeadByMove(float moveY) {
float offsetY = decelerateInterpolator.getInterpolation(moveY / cp.getMaxHeadHeight() / 2) * moveY / 2;
//禁止下拉刷新时下拉不显示头部
if (cp.isPureScrollModeOn() || (!cp.enableRefresh() && !cp.isOverScrollTopShow())) {
if (cp.getHeader().getVisibility() != GONE) {
cp.getHeader().setVisibility(GONE);
}
} else {
if (cp.getHeader().getVisibility() != VISIBLE) {
cp.getHeader().setVisibility(VISIBLE);
}
}
if (scrollHeadLocked && cp.isEnableKeepIView()) {
cp.getHeader().setTranslationY(offsetY - cp.getHeader().getLayoutParams().height);
} else {
cp.getHeader().setTranslationY(0);
cp.getHeader().getLayoutParams().height = (int) Math.abs(offsetY);
cp.getHeader().requestLayout();
cp.onPullingDown(offsetY);
}
if (!cp.isOpenFloatRefresh()) {
cp.getTargetView().setTranslationY(offsetY);
translateExHead((int) offsetY);
}
}
public void scrollBottomByMove(float moveY) {
float offsetY = decelerateInterpolator.getInterpolation(moveY / cp.getMaxBottomHeight() / 2) * moveY / 2;
if (cp.isPureScrollModeOn() || (!cp.enableLoadmore() && !cp.isOverScrollBottomShow())) {
if (cp.getFooter().getVisibility() != GONE) {
cp.getFooter().setVisibility(GONE);
}
} else {
if (cp.getFooter().getVisibility() != VISIBLE) {
cp.getFooter().setVisibility(VISIBLE);
}
}
if (scrollBottomLocked && cp.isEnableKeepIView()) {
cp.getFooter().setTranslationY(cp.getFooter().getLayoutParams().height - offsetY);
} else {
cp.getFooter().setTranslationY(0);
cp.getFooter().getLayoutParams().height = (int) Math.abs(offsetY);
cp.getFooter().requestLayout();
cp.onPullingUp(-offsetY);
}
cp.getTargetView().setTranslationY(-offsetY);
}
public void dealPullDownRelease() {
if (!cp.isPureScrollModeOn() && cp.enableRefresh() && getVisibleHeadHeight() >= cp.getHeadHeight() - cp.getTouchSlop()) {
animHeadToRefresh();
} else {
animHeadBack(false);
}
}
public void dealPullUpRelease() {
if (!cp.isPureScrollModeOn() && cp.enableLoadmore() && getVisibleFootHeight() >= cp.getBottomHeight() - cp.getTouchSlop()) {
animBottomToLoad();
} else {
animBottomBack(false);
}
}
private int getVisibleHeadHeight() {
LogUtil.i("header translationY:" + cp.getHeader().getTranslationY() + ",Visible head height:" + (cp.getHeader().getLayoutParams().height + cp.getHeader().getTranslationY()));
return (int) (cp.getHeader().getLayoutParams().height + cp.getHeader().getTranslationY());
}
private int getVisibleFootHeight() {
LogUtil.i("footer translationY:" + cp.getFooter().getTranslationY() + "");
return (int) (cp.getFooter().getLayoutParams().height - cp.getFooter().getTranslationY());
}
private void transHeader(float offsetY) {
cp.getHeader().setTranslationY(offsetY - cp.getHeader().getLayoutParams().height);
}
private void transFooter(float offsetY) {
cp.getFooter().setTranslationY(cp.getFooter().getLayoutParams().height - offsetY);
}
private boolean isAnimHeadToRefresh = false;
/**
* 1.满足进入刷新的条件或者主动刷新时，把Head位移到刷新位置（当前位置 ~ HeadHeight）
*/
public void animHeadToRefresh() {
LogUtil.i("animHeadToRefresh:");
isAnimHeadToRefresh = true;
animLayoutByTime(getVisibleHeadHeight(), cp.getHeadHeight(), animHeadUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimHeadToRefresh = false;
if (cp.getHeader().getVisibility() != VISIBLE) {
cp.getHeader().setVisibility(VISIBLE);
}
cp.setRefreshVisible(true);
if (cp.isEnableKeepIView()) {
if (!scrollHeadLocked) {
cp.setRefreshing(true);
cp.onRefresh();
scrollHeadLocked = true;
}
} else {
cp.setRefreshing(true);
cp.onRefresh();
}
}
});
}
private boolean isAnimHeadBack = false;
/**
* 2.动画结束或不满足进入刷新状态的条件，收起头部（当前位置 ~ 0）
*/
public void animHeadBack(final boolean isFinishRefresh) {
LogUtil.i("animHeadBack：finishRefresh?->" + isFinishRefresh);
isAnimHeadBack = true;
if (isFinishRefresh && scrollHeadLocked && cp.isEnableKeepIView()) {
cp.setPrepareFinishRefresh(true);
}
animLayoutByTime(getVisibleHeadHeight(), 0, animHeadUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimHeadBack = false;
cp.setRefreshVisible(false);
if (isFinishRefresh && scrollHeadLocked && cp.isEnableKeepIView()) {
cp.getHeader().getLayoutParams().height = 0;
cp.getHeader().requestLayout();
cp.getHeader().setTranslationY(0);
scrollHeadLocked = false;
cp.setRefreshing(false);
cp.resetHeaderView();
}
}
});
}
private boolean isAnimBottomToLoad = false;
/**
* 3.满足进入加载更多的条件或者主动加载更多时，把Footer移到加载更多位置（当前位置 ~ BottomHeight）
*/
public void animBottomToLoad() {
LogUtil.i("animBottomToLoad");
isAnimBottomToLoad = true;
animLayoutByTime(getVisibleFootHeight(), cp.getBottomHeight(), animBottomUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimBottomToLoad = false;
if (cp.getFooter().getVisibility() != VISIBLE) {
cp.getFooter().setVisibility(VISIBLE);
}
cp.setLoadVisible(true);
if (cp.isEnableKeepIView()) {
if (!scrollBottomLocked) {
cp.setLoadingMore(true);
cp.onLoadMore();
scrollBottomLocked = true;
}
} else {
cp.setLoadingMore(true);
cp.onLoadMore();
}
}
});
}
private boolean isAnimBottomBack = false;
/**
* 4.加载更多完成或者不满足进入加载更多模式的条件时，收起尾部（当前位置 ~ 0）
*/
public void animBottomBack(final boolean isFinishLoading) {
LogUtil.i("animBottomBack：finishLoading?->" + isFinishLoading);
isAnimBottomBack = true;
if (isFinishLoading && scrollBottomLocked && cp.isEnableKeepIView()) {
cp.setPrepareFinishLoadMore(true);
}
animLayoutByTime(getVisibleFootHeight(), 0, new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int height = (int) animation.getAnimatedValue();
//列表中加载到内容时滚动List
if (!ScrollingUtil.isViewToBottom(cp.getTargetView(), cp.getTouchSlop())) {
int dy = getVisibleFootHeight() - height;
//可以让TargetView滚动dy高度，但这样两个方向上滚动感觉画面闪烁，改为dy/2是为了消除闪烁
if (dy > 0) {
if (cp.getTargetView() instanceof RecyclerView)
ScrollingUtil.scrollAViewBy(cp.getTargetView(), dy);
else ScrollingUtil.scrollAViewBy(cp.getTargetView(), dy / 2);
}
}
//decorate the AnimatorUpdateListener
animBottomUpListener.onAnimationUpdate(animation);
}
}, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimBottomBack = false;
cp.setLoadVisible(false);
if (isFinishLoading) {
if (scrollBottomLocked && cp.isEnableKeepIView()) {
cp.getFooter().getLayoutParams().height = 0;
cp.getFooter().requestLayout();
cp.getFooter().setTranslationY(0);
scrollBottomLocked = false;
cp.resetBottomView();
cp.setLoadingMore(false);
}
}
}
});
}
private boolean isAnimHeadHide = false;
/**
* 5.当刷新处于可见状态，向上滑动屏幕时，隐藏刷新控件
*
* @param vy 手指向上滑动速度
*/
public void animHeadHideByVy(int vy) {
if (isAnimHeadHide) return;
isAnimHeadHide = true;
LogUtil.i("animHeadHideByVy：vy->" + vy);
vy = Math.abs(vy);
if (vy < 5000) vy = 8000;
animLayoutByTime(getVisibleHeadHeight(), 0, 5 * Math.abs(getVisibleHeadHeight() * 1000 / vy), animHeadUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimHeadHide = false;
cp.setRefreshVisible(false);
if (!cp.isEnableKeepIView()) {
cp.setRefreshing(false);
cp.onRefreshCanceled();
cp.resetHeaderView();
}
}
});
}
private boolean isAnimBottomHide = false;
/**
* 6.当加载更多处于可见状态时，向下滑动屏幕，隐藏加载更多控件
*
* @param vy 手指向下滑动的速度
*/
public void animBottomHideByVy(int vy) {
LogUtil.i("animBottomHideByVy：vy->" + vy);
if (isAnimBottomHide) return;
isAnimBottomHide = true;
vy = Math.abs(vy);
if (vy < 5000) vy = 8000;
animLayoutByTime(getVisibleFootHeight(), 0, 5 * getVisibleFootHeight() * 1000 / vy, animBottomUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimBottomHide = false;
cp.setLoadVisible(false);
if (!cp.isEnableKeepIView()) {
cp.setLoadingMore(false);
cp.onLoadmoreCanceled();
cp.resetBottomView();
}
}
});
}
private boolean isAnimOsTop = false;
private boolean isOverScrollTopLocked = false;
/**
* 7.执行顶部越界 To executive cross-border springback at the top.
* 越界高度height ∝ vy/computeTimes，此处采用的模型是 height=A*(vy + B)/computeTimes
*
* @param vy 满足越界条件的手指滑动速度 the finger sliding speed on the screen.
* @param computeTimes 从满足条件到滚动到顶部总共计算的次数 Calculation times from sliding to top.
*/
public void animOverScrollTop(float vy, int computeTimes) {
LogUtil.i("animOverScrollTop：vy->" + vy + ",computeTimes->" + computeTimes);
if (isOverScrollTopLocked) return;
isOverScrollTopLocked = true;
isAnimOsTop = true;
cp.setStatePTD();
int oh = (int) Math.abs(vy / computeTimes / 2);
final int overHeight = oh > cp.getOsHeight() ? cp.getOsHeight() : oh;
final int time = overHeight <= 50 ? 115 : (int) (0.3 * overHeight + 100);
animLayoutByTime(getVisibleHeadHeight(), overHeight, time, overScrollTopUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (scrollHeadLocked && cp.isEnableKeepIView() && cp.showRefreshingWhenOverScroll()) {
animHeadToRefresh();
isAnimOsTop = false;
isOverScrollTopLocked = false;
return;
}
animLayoutByTime(overHeight, 0, 2 * time, overScrollTopUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimOsTop = false;
isOverScrollTopLocked = false;
}
});
}
});
}
private boolean isAnimOsBottom = false;
private boolean isOverScrollBottomLocked = false;
/**
* 8.执行底部越界
*
* @param vy 满足越界条件的手指滑动速度
* @param computeTimes 从满足条件到滚动到顶部总共计算的次数
*/
public void animOverScrollBottom(float vy, int computeTimes) {
LogUtil.i("animOverScrollBottom：vy->" + vy + ",computeTimes->" + computeTimes);
if (isOverScrollBottomLocked) return;
cp.setStatePBU();
int oh = (int) Math.abs(vy / computeTimes / 2);
final int overHeight = oh > cp.getOsHeight() ? cp.getOsHeight() : oh;
final int time = overHeight <= 50 ? 115 : (int) (0.3 * overHeight + 100);
if (!scrollBottomLocked && cp.autoLoadMore()) {
cp.startLoadMore();
} else {
isOverScrollBottomLocked = true;
isAnimOsBottom = true;
animLayoutByTime(0, overHeight, time, overScrollBottomUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (scrollBottomLocked && cp.isEnableKeepIView() && cp.showLoadingWhenOverScroll()) {
animBottomToLoad();
isAnimOsBottom = false;
isOverScrollBottomLocked = false;
return;
}
animLayoutByTime(overHeight, 0, 2 * time, overScrollBottomUpListener, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
isAnimOsBottom = false;
isOverScrollBottomLocked = false;
}
});
}
});
}
}
private AnimatorUpdateListener animHeadUpListener = new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int height = (int) animation.getAnimatedValue();
if (scrollHeadLocked && cp.isEnableKeepIView()) {
transHeader(height);
} else {
cp.getHeader().getLayoutParams().height = height;
cp.getHeader().requestLayout();
cp.getHeader().setTranslationY(0);
cp.onPullDownReleasing(height);
}
if (!cp.isOpenFloatRefresh()) {
cp.getTargetView().setTranslationY(height);
translateExHead(height);
}
}
};
private AnimatorUpdateListener animBottomUpListener = new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int height = (int) animation.getAnimatedValue();
if (scrollBottomLocked && cp.isEnableKeepIView()) {
transFooter(height);
} else {
cp.getFooter().getLayoutParams().height = height;
cp.getFooter().requestLayout();
cp.getFooter().setTranslationY(0);
cp.onPullUpReleasing(height);
}
cp.getTargetView().setTranslationY(-height);
}
};
private AnimatorUpdateListener overScrollTopUpListener = new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int height = (int) animation.getAnimatedValue();
if (cp.isOverScrollTopShow()) {
if (cp.getHeader().getVisibility() != VISIBLE) {
cp.getHeader().setVisibility(VISIBLE);
}
} else {
if (cp.getHeader().getVisibility() != GONE) {
cp.getHeader().setVisibility(GONE);
}
}
if (scrollHeadLocked && cp.isEnableKeepIView()) {
transHeader(height);
} else {
cp.getHeader().setTranslationY(0);
cp.getHeader().getLayoutParams().height = height;
cp.getHeader().requestLayout();
cp.onPullDownReleasing(height);
}
cp.getTargetView().setTranslationY(height);
translateExHead(height);
}
};
private AnimatorUpdateListener overScrollBottomUpListener = new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
int height = (int) animation.getAnimatedValue();
if (cp.isOverScrollBottomShow()) {
if (cp.getFooter().getVisibility() != VISIBLE) {
cp.getFooter().setVisibility(VISIBLE);
}
} else {
if (cp.getFooter().getVisibility() != GONE) {
cp.getFooter().setVisibility(GONE);
}
}
if (scrollBottomLocked && cp.isEnableKeepIView()) {
transFooter(height);
} else {
cp.getFooter().getLayoutParams().height = height;
cp.getFooter().requestLayout();
cp.getFooter().setTranslationY(0);
cp.onPullUpReleasing(height);
}
cp.getTargetView().setTranslationY(-height);
}
};
private void translateExHead(int offsetY) {
if (!cp.isExHeadLocked()) cp.getExHead().setTranslationY(offsetY);
}
public void animLayoutByTime(int start, int end, long time, AnimatorUpdateListener listener, AnimatorListener animatorListener) {
ValueAnimator va = ValueAnimator.ofInt(start, end);
va.setInterpolator(new DecelerateInterpolator());
va.addUpdateListener(listener);
va.addListener(animatorListener);
va.setDuration(time);
va.start();
// offerToQueue(va);
}
public void animLayoutByTime(int start, int end, long time, AnimatorUpdateListener listener) {
ValueAnimator va = ValueAnimator.ofInt(start, end);
va.setInterpolator(new DecelerateInterpolator());
va.addUpdateListener(listener);
va.setDuration(time);
va.start();
// offerToQueue(va);
}
public void animLayoutByTime(int start, int end, AnimatorUpdateListener listener, AnimatorListener animatorListener) {
ValueAnimator va = ValueAnimator.ofInt(start, end);
va.setInterpolator(new DecelerateInterpolator());
va.addUpdateListener(listener);
va.addListener(animatorListener);
va.setDuration((int) (Math.abs(start - end) * animFraction));
va.start();
// offerToQueue(va);
}
//just for test.
private void offerToQueue(Animator animator) {
if (animator == null) return;
if (animQueue == null) {
animQueue = new LinkedList<>();
}
animQueue.offer(animator);
System.out.println("Current Animators：" + animQueue.size());
animator.addListener(new AnimatorListenerAdapter() {
long startTime = 0;
@Override
public void onAnimationStart(Animator animation) {
startTime = System.currentTimeMillis();
}
@Override
public void onAnimationEnd(Animator animation) {
animQueue.poll();
if (animQueue.size() > 0) {
animQueue.getFirst().start();
}
System.out.println("Anim end：start time->" + startTime + ",elapsed time->" + (System.currentTimeMillis() - startTime));
}
});
if (animQueue.size() == 1) {
animator.start();
}
}
private LinkedList<Animator> animQueue;
}