如何从适配器类调用getsupportfragmentmanager()？
如何从适配器类调用getsupportfragmentmanager()？
提问于 2015-08-12 17:37:06
我将ViewPager作为RecyclerView.I中的第一项，希望将FragmentStatePagerAdapter设置为onBindViewHolder()方法中的viewpager。但我不能呼叫getsupportfragmentmanager().Please帮助！！.下面是我的代码：
public class CustomListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Context context;
private List<RowItem> rowItemList;
private final int VIEW_TYPE_CUSTOM = 0;
private final int VIEW_TYPE_NORMAL = 1;
NewPagerAdapter mCustomPagerAdapter;
public CustomListAdapter(Context context, List<RowItem> rowItemList) {
this.context = context;
this.rowItemList = rowItemList;
}
@Override
public int getItemViewType(int position) {
if (position == 0)
return VIEW_TYPE_CUSTOM;
else
return VIEW_TYPE_NORMAL;
}
@Override
public int getItemCount() {
return rowItemList.size()+1;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
switch (getItemViewType(position)) {
case VIEW_TYPE_CUSTOM:
recViewHolder1 viewHolderSecond = (recViewHolder1) holder;
mCustomPagerAdapter = new NewPagerAdapter(getSupportFragmentManager());
viewHolderSecond.vPager.setAdapter(mCustomPagerAdapter);
break;
case VIEW_TYPE_NORMAL:
recViewHolder2 viewHolderFirst = (recViewHolder2) holder;
RowItem rowItem = rowItemList.get(position-1);
viewHolderFirst.vName.setText(rowItem.getName());
viewHolderFirst.vImage.setImageResource(rowItem.getImageId());
break;
}
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case VIEW_TYPE_CUSTOM:
View itemView = LayoutInflater.
from(parent.getContext()).
inflate(R.layout.pagerlayout, parent, false);
return new recViewHolder1(itemView);
case VIEW_TYPE_NORMAL:
View itemView1 = LayoutInflater.
from(parent.getContext()).
inflate(R.layout.rowlayout, parent, false);
return new recViewHolder2(itemView1);
}
return null;
}
@Override
public long getItemId(int position) {
return super.getItemId(position);
}
public static class recViewHolder1 extends RecyclerView.ViewHolder {
protected static ViewPager vPager;
public recViewHolder1(View v) {
super(v);
vPager = (ViewPager) v.findViewById(R.id.vPager);
}
}
public class recViewHolder2 extends RecyclerView.ViewHolder implements View.OnClickListener {
protected TextView vName;
protected ImageView vImage;
public recViewHolder2(View v) {
super(v);
v.setOnClickListener(this);
vName = (TextView) v.findViewById(R.id.vName);
vImage = (ImageView) v.findViewById(R.id.vImage);
} } }回答 8
Stack Overflow用户
发布于 2016-03-18 08:07:02
我用mContext解决了这个问题
((FragmentActivity)mContext).getSupportFragmentManager().beginTransaction()
.replace(R.id.item_detail_container, fragment)
.commit();Stack Overflow用户
发布于 2018-08-12 02:27:01
它的最佳解决方案是将上下文的引用从您的活动(或)片段传递到Adapter。
public UsersAdapter(ArrayList<User> items , Context context) {
usersList = items;
this.context = context;
}然后将上下文向上转换为AppCompatActivity，如下所示，并获取getSupportFragmentManager
((AppCompatActivity) context).getSupportFragmentManager()分享以提高。
Stack Overflow用户
发布于 2016-06-23 22:24:47
您可以在此处设置transition ;)
public void pushFragment(Fragment newFragment, Context context){
FragmentTransaction transaction = ((FragmentActivity)context).getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment, newFragment);
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
transaction.addToBackStack(null);
transaction.commit();
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/31961403
复制相关文章
相似问题