private boolean checkCanRefresh() {
LayoutManager layoutManager = getLayoutManager();
Adapter adapter = getAdapter();
if (adapter != null && layoutManager != null) {
int firstVisiblePosition = calculateFirstVisiblePosition(layoutManager);
Log.d(TAG, "firstVisiblePosition" + firstVisiblePosition);
if (!checkIsLoadMore()
&& firstVisiblePosition == (mRefreshHeader.getVisibleHeaderHeight() == 0 ? 1 : 0)
&& mRefreshHeader.getRefreshState() != REFRESH_STATE_REFRESHING) {
return true;
}
}
return false;
}
@Override
public boolean onTouchEvent(MotionEvent e) {
if (mRefreshEnable || mLoadMoreEnable) {
switch (e.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
mDownMotionEventY = (int) e.getRawY();
break;
case MotionEvent.ACTION_MOVE:
mCurMotionEventY = (int) e.getRawY();
if (mLoadMoreEnable && mCurMotionEventY - mDownMotionEventY < -20) {
mIsUpFlag = true;
}
if (mLoadMoreEnable && checkCanLoadMore()) {
Log.e(TAG, "checkLoadMore");
showLoadMoreView();
}
if (mRefreshEnable && checkCanRefresh()) {
Log.d(TAG, "canRefresh");
mRefreshHeader.move(
(mCurMotionEventY - mDownMotionEventY) / 2, mCurMotionEventY, mDownMotionEventY);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (mRefreshHeader != null
&& mRefreshHeader.getRefreshState() != REFRESH_STATE_REFRESHING) {
mRefreshHeader.upOrCancel(mRefreshDataListener);
}
mIsUpFlag = false;
break;
}
}
return super.onTouchEvent(e);
}
public void completeRefresh() {
if (mRefreshHeader != null) {
mRefreshHeader.completeRefresh();
}
}
public boolean checkIsPullToRefresh() {
return mRefreshEnable
&& mRefreshHeader != null
&& mRefreshHeader.getRefreshState() != REFRESH_STATE_IDLE;
}