问题描述
我试图在更改回收器视图时实现滚动选项卡布局更改,以及在更改滚动选项卡布局时更改回收器视图。
这是我的代码:
linearlayoutmanager llm = new linearlayoutmanager(mContext);
recyclerView.setLayoutManager(llm);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
isScrolling = false;
llm.scrollToPositionWithOffset(tab.getPosition(),0);
RecyclerView.SmoothScroller smoothScroller = new LinearSmoothScroller(mContext) {
@Override
protected int getVerticalSnapPreference() {
return LinearSmoothScroller.SNAP_TO_START;
}
};
smoothScroller.setTargetPosition(tab.getPosition());
llm.startSmoothScroll(smoothScroller);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(@NonNull RecyclerView recyclerView,int newState) {
if (newState == RecyclerView.SCROLL_STATE_DRAGGING) {
isScrolling = true;
}
}
@Override
public void onScrolled(@NonNull RecyclerView recyclerView,int dx,int dy) {
super.onScrolled(recyclerView,dx,dy);
if (isScrolling) {
int position = llm.findFirstVisibleItemPosition();
if (position != tabLayout.getSelectedTabPosition()) {
TabLayout.Tab tab = tabLayout.getTabAt(position);
tab.select();
}
}
}
});
下面是我想要实现的动画:
https://i.stack.imgur.com/E8rZ2.gif
如果您知道如何修复,请分享。提前致谢。
解决方法
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