現(xiàn)在我正在嘗試將關(guān)鍵數(shù)據(jù)從片段傳遞到包含 recyclerview 的適配器，但問題是在我的情況下無法使用 bundle 或使用意圖發(fā)送數(shù)據(jù)我很困惑如何傳遞數(shù)據(jù)..這是我的片段package com.example.together.fragment;public class PetchingLoungeFragment extends Fragment { private static final String TAG = "PetFirendsFragment"; RecyclerView recyclerView; PetchingLoungeAdapter petchingLoungeAdapter; List<User> userList; FirebaseUser firebaseUser; List<String> idList = new ArrayList<>(); public String petKey; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_petching_lounge, container, false); recyclerView = view.findViewById(R.id.recycler_view); recyclerView.setHasFixedSize(true); firebaseUser = FirebaseAuth.getInstance().getCurrentUser(); DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Lounge").child("PetchingBunyang").child(firebaseUser.getUid()).child("PetId"); reference.addValueEventListener(new ValueEventListener() { @Override public void onDataChange(@NonNull DataSnapshot dataSnapshot) { for (DataSnapshot ds : dataSnapshot.getChildren()) { String id = ds.getKey(); PetchingLoungeFragment petchingLoungeFragment = new PetchingLoungeFragment(); // Fragment ?? Bundle bundle = new Bundle(1); // ????? ??? ??? ?? bundle.putString("id", id); // key , value petchingLoungeFragment.setArguments(bundle);
2 回答
慕尼黑的夜晚無繁華
TA貢獻1864條經(jīng)驗 獲得超6個贊
在您的適配器類中創(chuàng)建一個公共函數(shù)和一個私有變量
Int id;
public void setId(int id) {
this.id = id;
}
現(xiàn)在通過您的片段設(shè)置 ID
petchingLoungeAdapter = new PetchingLoungeAdapter(getContext(), userList);
petchingLoungeAdapter.setId(/* set ID here */) ;
recyclerView.setAdapter(petchingLoungeAdapter);
慕運維8079593
TA貢獻1876條經(jīng)驗 獲得超5個贊
你可以像這樣編寫適配器類的構(gòu)造函數(shù)
Context mContext;
List<User> mUser;
String id;
public PetchingLoungeAdapter(Context mContext, List<User> mUser, String id)
{
this.mContext = mContext;
this.mUser = mUser;
this.id=id;
}
你可以從你的片段中調(diào)用這個構(gòu)造函數(shù)，如下所示
petchingLoungeAdapter = new PetchingLoungeAdapter(getContext(), userList,id);// pass the id here ( ds.getKey() ).
recyclerView.setAdapter(petchingLoungeAdapter);
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