/**
* make animation to start or end when target view was be Visible or Gone or Invisible. make
* animation to cancel when target view be onDetachedFromWindow.
*
* @param animStatus
*/
public void setAnimationStatus(AnimStatus animStatus) {
if (mAnimators == null) {
return;
}
int count = mAnimators.size();
for (int i = 0; i < count; i++) {
Animator animator = mAnimators.get(i);
boolean isRunning = animator.isRunning();
switch (animStatus) {
case START:
if (!isRunning) {
animator.start();
}
break;
case END:
if (isRunning) {
animator.end();
}
break;
case CANCEL:
if (isRunning) {
animator.cancel();
}
break;
}
}
}
public static void onDestroyActivity() {
HashSet<Animator> animators = new HashSet<Animator>(sAnimators.keySet());
for (Animator a : animators) {
if (a.isRunning()) {
a.cancel();
}
sAnimators.remove(a);
}
}
@Override
public boolean isRunning() {
final ArrayList<Animator> animators = mAnimatedVectorState.mAnimators;
final int size = animators.size();
for (int i = 0; i < size; i++) {
final Animator animator = animators.get(i);
if (animator.isRunning()) {
return true;
}
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
Log.d(TAG, "onTouchEvent: " + e.getAction());
if (mExpandAndCollapseAnim != null && mExpandAndCollapseAnim.isRunning() || mTargetView == null)
return;
// 如果要响应fling事件设置将mIsDragging设为false
if (mGestureDetector.onTouchEvent(e)) {
mIsDragging = false;
return;
}
int x = (int) e.getX();
int y = (int) e.getY();
int action = MotionEventCompat.getActionMasked(e);
switch (action) {
case MotionEvent.ACTION_DOWN:
// RecyclerView 不会转发这个Down事件
break;
case MotionEvent.ACTION_MOVE:
int deltaX = (int) (mLastX - e.getX());
if (mIsDragging) {
horizontalDrag(deltaX);
}
mLastX = x;
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (mIsDragging) {
if (!smoothHorizontalExpandOrCollapse(0) && isCollapsed()) mTargetView = null;
mIsDragging = false;
}
break;
}
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
Log.d(TAG, "onInterceptTouchEvent: " + e.getAction());
int action = MotionEventCompat.getActionMasked(e);
int x = (int) e.getX();
int y = (int) e.getY();
// 如果RecyclerView滚动状态不是空闲targetView不是空
if (rv.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) {
if (mTargetView != null) {
// 隐藏已经打开
smoothHorizontalExpandOrCollapse(DEFAULT_DURATION / 2);
mTargetView = null;
}
return false;
}
// 如果正在运行动画 ，直接拦截什么都不做
if (mExpandAndCollapseAnim != null && mExpandAndCollapseAnim.isRunning()) {
return true;
}
boolean needIntercept = false;
switch (action) {
case MotionEvent.ACTION_DOWN:
mActivePointerId = MotionEventCompat.getPointerId(e, 0);
mLastX = (int) e.getX();
mLastY = (int) e.getY();
/*
* 如果之前有一个已经打开的项目，当此次点击事件没有发生在右侧的菜单中则返回TRUE，
* 如果点击的是右侧菜单那么返回FALSE这样做的原因是因为菜单需要响应Onclick
* */
if (mTargetView != null) {
return !inView(x, y);
}
// 查找需要显示菜单的view;
mTargetView = mCallback.findTargetView(x, y);
break;
case MotionEvent.ACTION_MOVE:
int deltaX = (x - mLastX);
int deltaY = (y - mLastY);
if (Math.abs(deltaY) > Math.abs(deltaX)) return false;
// 如果移动距离达到要求，则拦截
needIntercept = mIsDragging = mTargetView != null && Math.abs(deltaX) >= mTouchSlop;
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
/*
* 走这是因为没有发生过拦截事件
* */
if (isExpanded()) {
if (inView(x, y)) {
// 如果走这那行这个ACTION_UP的事件会发生在右侧的菜单中
Log.d(TAG, "click item");
} else {
// 拦截事件,防止targetView执行onClick事件
needIntercept = true;
}
// 折叠菜单
smoothHorizontalExpandOrCollapse(DEFAULT_DURATION / 2);
}
mTargetView = null;
break;
}
return needIntercept;
}