1.TabLayout
- tab1 (Fragment1)
- tab2 (Fragment2)
- tab3 (Fragment3)
* RecyclerView + CardView (OnClick)
在CardView
ClickListner上,在tab3中打开另一个片段。那么如何在tab3中打开片段。
错误在getFragmentManager()
中
FragmentTransaction transaction = getFragmentManager().beginTransaction();
而不是这样,我试着:
FragmentTransaction transaction = activity.getFragmentManager().beginTransaction();
FragmentTransaction transaction = itemview.getContext().getFragmentManager().beginTransaction();
但是错误没有解决。
下面是我的代码:
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
List<NatureItem> mItems;
private int lastPosition = -1;
Context context;
TaskFragment main;
public CardAdapter(Context context,TaskFragment ma)
{
this.context=context;
main=ma;
}
public CardAdapter() {
super();
mItems = new ArrayList<NatureItem>();
NatureItem nature = new NatureItem();
nature.setName("The Paris Attack 2015");
nature.setDes("Lorem ipsum dolor sit amet.");
nature.setThumbnail(R.drawable.news1);
mItems.add(nature);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int position) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.custom_list, viewGroup, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int i) {
NatureItem nature = mItems.get(i);
viewHolder.tvNature.setText(nature.getName());
viewHolder.tvDesNature.setText(nature.getDes());
viewHolder.imgThumbnail.setImageResource(nature.getThumbnail());
// setAnimation(viewHolder.card,i);
}
@Override
public int getItemCount() {
return mItems.size();
}
class ViewHolder extends RecyclerView.ViewHolder {
private int lastPosition = -1;
public ImageView imgThumbnail;
public TextView tvNature;
public TextView tvDesNature;
// Button btnclear,btncancle;
CardView card;
Activity activity;
Context co;
public ViewHolder(final View itemView) {
super(itemView);
imgThumbnail = (ImageView) itemView.findViewById(R.id.img_thumbnail);
tvNature = (TextView) itemView.findViewById(R.id.tv_nature);
tvDesNature = (TextView) itemView.findViewById(R.id.tv_des_nature);
card = (CardView) itemView.findViewById(R.id.card);
card.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(itemView.getContext(), "Clicked Card...", Toast.LENGTH_LONG).show();
ShareFragment newFragment = new ShareFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.viewFragments, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
}
}
}
发布于 2017-11-02 14:40:50
在onclick中打开新片段,如下所示
@Override
public void onClick(View view){
AppCompatActivity activity = (AppCompatActivity) view.getContext();
Fragment myFragment = new MyFragment();
activity.getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, myFragment).addToBackStack(null).commit();
}
发布于 2015-12-16 20:01:40
如果您使用了支持库片段或默认片段,请确保在任何地方都使用相同的片段。并谨慎使用"getSupportFragmentManager“或"getFragmentManager”。
在构造函数中传递上下文。
public CardAdapter(Context context) {
super();
mItems = new ArrayList<NatureItem>();
NatureItem nature = new NatureItem();
nature.setName("The Paris Attack 2015");
nature.setDes("Lorem ipsum dolor sit amet.");
nature.setThumbnail(R.drawable.news1);
mItems.add(nature);
}
onClick内幕
....Your Code
ShareFragment newFragment = new ShareFragment();
FragmentTransaction transaction = /* Here is the change.*/context.getFragmentManager().beginTransaction();
transaction.replace(R.id.viewFragments, newFragment);
...Your Code
更新
Inside onClick call mainActivity setFragment method to replace fragment.
((MainActivity) context).setFragment(yourFragment);
public void setFragment(Fragment frag){
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.viewFragments, frag);
}
发布于 2020-04-13 23:05:28
要从一个片断移动到另一个片断(从RecyclerView MyViewHolder类),请使用以下代码
Fragment fragment = new AttendanceFragment();
FragmentManager fragmentManager = ((FragmentActivity) mContext).getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
https://stackoverflow.com/questions/34310592
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