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我一直在嘗試將從RecyclerView單擊的項目位置發送給Fragment父親，我已經看到很多教程，但是我沒有成功完成此任務。請幫我在這特定的情況下：通過商品位置點擊從RecyclerView到片段父親
這是我Adapter類：
public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
private static final int TYPE_FOOTER = 2;
private HeaderViewHolder headerHolder;
private ArrayList<Doc> documentos;
private Context context;
private ArrayAdapter<String> arrayAdapter;
private SQLiteHandler db;
public MyAdapter(Context context, ArrayList<Doc> generics) {
this.context = context;
this.documentos = generics;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder (ViewGroup parent, int viewType) {
if(viewType == TYPE_HEADER) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.card_header, parent, false);
return new HeaderViewHolder (v);
} else if(viewType == TYPE_FOOTER) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.card_foter, parent, false);
return new FooterViewHolder (v);
} else if(viewType == TYPE_ITEM) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.card_item, parent, false);
return new GenericViewHolder (v);
}
return null;
}
private Doc getItem (int position) {
return documentos.get (position);
}
@Override
public void onBindViewHolder (RecyclerView.ViewHolder holder, final int position) {
if(holder instanceof HeaderViewHolder) {
headerHolder = (HeaderViewHolder) holder;
headerHolder.card_view_header.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick (View view) {
createDialogServices();
}
});
} else if(holder instanceof FooterViewHolder) {
FooterViewHolder footerHolder = (FooterViewHolder) holder;
//footerHolder.txtTitleFooter.setText ("Footer");
footerHolder.send_Button.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick (View view) {
Toast.makeText (context, "Enviando documentos...", Toast.LENGTH_SHORT).show();
}
});
} else if(holder instanceof GenericViewHolder) {
Doc currentItem = getItem (position - 1);
final Integer num = currentItem.getPosition();
GenericViewHolder genericViewHolder = (GenericViewHolder) holder;
genericViewHolder.txtTitle.setText(currentItem.getTittle());
genericViewHolder.txtDescription.setText(currentItem.getDescription());
genericViewHolder.txtTitle.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick (View view) {
ImagePicker.pickImage((Activity) context, "Select your image:");
}
});
}
}
@Override
public int getItemViewType (int position) {
if(isPositionHeader (position)) {
return TYPE_HEADER;
} else if(isPositionFooter (position)) {
return TYPE_FOOTER;
}
return TYPE_ITEM;
}
private boolean isPositionHeader (int position) {
return position == 0;
}
private boolean isPositionFooter (int position) {
return position == documentos.size() + 1;
}
@Override
public int getItemCount() {
return documentos.size() + 2;
}
private class FooterViewHolder extends RecyclerView.ViewHolder {
Button send_Button;
FooterViewHolder(View itemView) {
super (itemView);
this.send_Button = (Button) itemView.findViewById (R.id.btn_send_docs);
}
}
private class HeaderViewHolder extends RecyclerView.ViewHolder {
CardView card_view_header;
TextView card_txt_title;
TextView card_txt_description;
HeaderViewHolder(View itemView) {
super (itemView);
this.card_view_header = (CardView) itemView.findViewById (R.id.card_view_header);
this.card_txt_title = (TextView) itemView.findViewById(R.id.card_header_textView_tittle);
this.card_txt_description = (TextView) itemView.findViewById(R.id.card_header_textView_description);
}
}
private class GenericViewHolder extends RecyclerView.ViewHolder {
TextView txtTitle;
TextView txtDescription;
GenericViewHolder(View itemView) {
super(itemView);
this.txtTitle = (TextView) itemView.findViewById(R.id.card_item_textView_tittle);
this.txtDescription = (TextView) itemView.findViewById(R.id.card_item_textView_description);
}
}
這是我Fragment類：
public class FragmentArchivos extends Fragment {
private RecyclerView.Adapter MyAdapter;
private RecyclerView.LayoutManager mLayoutManager;
private RecyclerView rv;
private Button btn_send_fr_docs;
private Bitmap bitmap;
private ImageView photo;
private SQLiteHandler db;
private Integer x;
public FragmentArchivos(){
//Empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View myView = inflater.inflate(R.layout.fr_docs, container, false);
db = new SQLiteHandler(getActivity());
getAllDocsFromServer();
x = db.getDocsCount();
RecyclerView recyclerView = (RecyclerView) myView.findViewById (R.id.cardList);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager (getActivity());
MyAdapter adapter = new MyAdapter(getActivity(), getDocumentList());
recyclerView.setLayoutManager (linearLayoutManager);
recyclerView.setAdapter (adapter);
return myView;
}
你recycleview是其他片段裏面？ –
@BrunoFerreira不，RecyclerView位於FragmentArchivos片段內。 – JosCarrillo
好的我現在明白了 –