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I didn't test but couldn't this
```
@Override
public float calculateScrollProgress(RecyclerView recyclerView) {
LinearLayoutManager layoutManager = (LinearLayoutManager) recyclerView.get…
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May add a demo about RecyclerView ?
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android.support.v7.widget.LinearLayoutManager cannot be cast to android.support.v7.widget.StaggeredGridLayoutManager
XRefreshContentView:
public void getRecyclerViewInfo(LayoutManager layoutMan…
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java.lang.NullPointerException
at android.support.v7.widget.RecyclerView$LayoutManager.onInitializeAccessibilityEvent(RecyclerView.java:10000)
at android.support.v7.widget.RecyclerVi…
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Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean androidx.recyclerview.widget.RecyclerView$ViewHolder.isTmpDetached()' on a null object reference
at a…
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//MainActivity
public void replaceFragment(int position) {
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
DetailFragme…
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`if (newState == RecyclerView.SCROLL_STATE_IDLE) {`
` snapHelper.findSnapView(layoutManager)?.let {`
` val position = layoutManager.getPosition(it)`
` adapter.list[position].selected = true`…
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向上滑动时后面的header不是把前面的header推出屏幕。而是后面header移动到前面header的下面直接替换,效果不是很好。
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但我使用多item布局,且使用`HeaderAndFooterWrapper`加入了头部,我的`Adapter extends MultiItemTypeAdapter`,
在`RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
if (manager instanceof GridLayout…
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Тебе нужно сделать recyclerview.
1) добавь его в разметку
2) найди его в активити (findViewById)
3) пролиши ему layoutmanager
4) создай отдельный класс адаптер
5) подключи адаптер к списку элемен…
Viked updated
7 years ago