Android 如何刷新内部有两个视图的布局
我有两个子SwipeRefreshLayout:Android 如何刷新内部有两个视图的布局,android,pull-to-refresh,swiperefreshlayout,Android,Pull To Refresh,Swiperefreshlayout,我有两个子SwipeRefreshLayout:RecyclerView和LinearLayout 所以我必须定制RecyclerView: recycler_view.setOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { /
RecyclerView
和LinearLayout
所以我必须定制RecyclerView:
recycler_view.setOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
// int topRowVerticalPosition = (recyclerView == null || recyclerView.getChildCount() == 0) ? 0 : recyclerView.getChildAt(0).getTop();
// swipeRefreshLayout.setEnabled(topRowVerticalPosition >= 0);
if (!defined) {
toolbarHeight = ll_header.getMeasuredHeight() + 15;
footerHeight = ll_footer.getMeasuredHeight() + 15;
defined = true;
}
clipToolbarOffset();
if ((toolbarOffset < toolbarHeight && dy > 0) || (toolbarOffset > 0 && dy < 0)) {
toolbarOffset += dy;
}
if ((footerOffset < footerHeight && dy > 0) || (footerOffset > 0 && dy < 0)) {
footerOffset += dy;
}
onMoved(toolbarOffset, footerOffset);
}
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
// super.onScrollStateChanged(recyclerView, newState);
if (recyclerView.getAdapter() != null) {
if (recyclerView.getAdapter().getItemCount() > 0) {
int currentPosition = ((RecyclerViewAdapter) recyclerView.getAdapter()).getCurrentPosition();
if (currentPosition > limit && currentPosition >= items.size() - 2) {
if (!isLoading) {
getContent();
}
}
}
}
LinearLayoutManager llm = (LinearLayoutManager) recyclerView.getLayoutManager();
if (recyclerView.getAdapter() == null) {
swipeRefreshLayout.setEnabled(true);
return;
}
swipeRefreshLayout.setEnabled(llm.findFirstCompletelyVisibleItemPosition() == 0);
}
});
recycler\u view.setOnScrollListener(新的RecyclerView.OnScrollListener(){
@凌驾
已填空的公共空间(RecyclerView RecyclerView、int dx、int dy){
//int-topRowVerticalPosition=(recyclerView==null | | recyclerView.getChildCount()==0)?0:recyclerView.getChildAt(0).getTop();
//swipeRefreshLayout.setEnabled(topRowVerticalPosition>=0);
如果(!已定义){
toolbarHeight=ll_标题。getMeasuredHeight()+15;
footerHeight=ll_footer.getMeasuredHeight()+15;
定义=真;
}
clipToolbarOffset();
if((toolbarOffset0)| |(toolbarOffset>0&&dy<0)){
偏移量+=dy;
}
如果((页脚偏移量0)| |(页脚偏移量>0&&dy<0)){
footerOffset+=dy;
}
onMoved(工具栏偏移、页脚偏移);
}
@凌驾
CrollStateChanged上的公共无效(RecyclerView RecyclerView,int newState){
//super.onScrollStateChanged(recyclerView、newState);
if(recyclerView.getAdapter()!=null){
如果(recyclerView.getAdapter().getItemCount()>0){
int currentPosition=((RecycleServiceAdapter)recyclerView.getAdapter()).getCurrentPosition();
如果(currentPosition>limit&¤tPosition>=items.size()-2){
如果(!isLoading){
getContent();
}
}
}
}
LinearLayoutManager llm=(LinearLayoutManager)recyclerView.getLayoutManager();
if(recyclerView.getAdapter()==null){
swipeRefreshLayout.setEnabled(true);
返回;
}
swiperFreshLayout.setEnabled(llm.findFirstCompletelyVisibleItemPosition()=0);
}
});
当LinearLayout下拉时,如何启用SwipeRefreshLayout的刷新?请尝试此代码片段
recycler_view.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
}
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
swipeRefreshLayout.setEnabled(llm.findFirstCompletelyVisibleItemPosition() == 0);
}
});
如果要在LinearLayout上启用SwiperFresh,则需要将LinearLayout放入滚动视图中:
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
// insert layout components here ...
</LinearLayout>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
//在此处插入布局组件。。。