如何从点击android studio firestore的回收器视图中获取数据
根据职位单击我的回收者视图时,我如何获得电子邮件?单击“回收者视图”后,我希望检索特定位置的电子邮件以进行编辑。现在我只能在单击时获取文档的Id,并且我已经尝试从UserInfo获取电子邮件,但它不起作用。请帮忙 用户信息 管理片段如何从点击android studio firestore的回收器视图中获取数据,android,google-cloud-firestore,Android,Google Cloud Firestore,根据职位单击我的回收者视图时,我如何获得电子邮件?单击“回收者视图”后,我希望检索特定位置的电子邮件以进行编辑。现在我只能在单击时获取文档的Id,并且我已经尝试从UserInfo获取电子邮件,但它不起作用。请帮忙 用户信息 管理片段 公共类AdminFragment扩展片段实现FirestoreAdapter.OnItemClickListener{ 回收视图myRecycleView; 专用FirestoreAdapter适配器; FirebaseFirestore商店; 按钮Btn; @Su
公共类AdminFragment扩展片段实现FirestoreAdapter.OnItemClickListener{
回收视图myRecycleView;
专用FirestoreAdapter适配器;
FirebaseFirestore商店;
按钮Btn;
@SuppressLint(“资源类型”)
@可空
@凌驾
创建视图时的公共视图(@NonNull LayoutInflater inflater、@Nullable ViewGroup container、@Nullable Bundle savedInstanceState){
视图v=充气机。充气(R.layout.fragment_admin,container,false);
myRecycleView=v.findViewById(R.id.RecycleView);
Btn=v.findviewbyd(R.id.editbn);
fStore=FirebaseFirestore.getInstance();
Query=fStore.collection(“用户”);
PagedList.Config Config=new PagedList.Config.Builder().setInitialLoadSizeHint(10.setPageSize(3.build));
FirestorePagingOptions=new FirestorePagingOptions.Builder().setLifecycleOwner(此)
.setQuery(查询、配置、新快照解析器(){
@非空
@凌驾
public UserInfo parseSnapshot(@NonNull DocumentSnapshot snapshot){
UserInfo UserInfo=snapshot.toObject(UserInfo.class);
String itemId=snapshot.getId();
userInfo.setItem_id(itemId);
返回用户信息;
}
}).build();
适配器=新FirestoreAdapter(选项,此选项);
myRecycleView.setHasFixedSize(true);
myRecycleView.setLayoutManager(新的LinearLayoutManager(this.getActivity());
myRecycleView.setAdapter(适配器);
Btn.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
字符串email=UserInfo.getEmail();
fAuth.sendPasswordResetEmail(电子邮件)
.addOnCompleteListener(新的OnCompleteListener(){
@凌驾
未完成的公共void(@NonNull任务){
if(task.issusccessful()){
Toast.makeText(getActivity(),“密码重置链接已发送到您的注册电子邮件!”,Toast.LENGTH_LONG.show();
}否则{
Toast.makeText(getActivity(),“发送重置电子邮件失败!”,Toast.LENGTH_SHORT.show();
}
}
});
}
});
返回v;
}
@凌驾
公共void onStop(){
super.onStop();
adapter.stopListening();
}
@凌驾
public void onStart(){
super.onStart();
adapter.startListening();
}
@凌驾
public void onItemClick(文档快照快照,int位置){
Log.d(“Item_CLICK”,“单击Item:+position+”和ID:+snapshot.getId());
}
}
Firestore适配器
公共类FirestoreAdapter扩展FirestorePagingAdapter{
私有OnItemClickListener OnItemClickListener;
公共FirestoreAdapter(@NonNull FirestorePagingOptions,OnItemClickListener OnItemClickListener){
超级(期权);
this.onItemClickListener=onItemClickListener;
}
@凌驾
受保护的无效onBindViewHolder(@NonNull UserViewHolder,int位置,@NonNull UserInfo model){
holder.list_email.setText(model.getEmail());
holder.list_fname.setText(model.getFName());
}
@非空
@凌驾
public UserViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType){
View=LayoutFlater.from(parent.getContext()).flate(R.layout.example_item,parent,false);
返回新的UserViewHolder(视图);
}
公共类UserViewHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener{
私人文本查看列表\电子邮件;
私有文本视图列表\u fname;
public UserViewHolder(@NonNull View itemview){
超级(项目视图);
list_email=itemView.findviewbyd(R.id.textView);
list_fname=itemView.findviewbyd(R.id.textView2);
setOnClickListener(这个);
}
@凌驾
公共void onClick(视图v){
onItemClickListener.onItemClick(getItem(getAdapterPosition()),getAdapterPosition());
}
}
公共接口侦听器{
void onItemClick(文档快照快照,int位置);
}
}
这将解决您的问题
@Override
public void onItemClick(DocumentSnapshot snapshot, int position) {
UserInfo userInfo = snapshot.toObject(UserInfo.class);
Log.d("Item_CLICK", "Clicked the item : " + position + "and the ID:" + userInfo.getEmail()+" and the fname"+userInfo.getFName());
}
然后,如果我想把那个值放到Admin片段中的字符串email中,我该如何把那个值放到我的字符串email中呢?上面提到的这个方法将在Admin片段中。您可以在管理片段中创建电子邮件变量。并将电子邮件值指定给该局部变量。
public class AdminFragment extends Fragment implements FirestoreAdapter.OnItemClickListener {
RecyclerView myRecycleView;
private FirestoreAdapter adapter;
FirebaseFirestore fStore;
Button Btn;
@SuppressLint("ResourceType")
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_admin, container, false);
myRecycleView = v.findViewById(R.id.recyclerView);
Btn = v.findViewById(R.id.editBtn);
fStore = FirebaseFirestore.getInstance();
Query query = fStore.collection("users");
PagedList.Config config = new PagedList.Config.Builder().setInitialLoadSizeHint(10).setPageSize(3).build();
FirestorePagingOptions<UserInfo> options = new FirestorePagingOptions.Builder<UserInfo>().setLifecycleOwner(this)
.setQuery(query, config, new SnapshotParser<UserInfo>() {
@NonNull
@Override
public UserInfo parseSnapshot(@NonNull DocumentSnapshot snapshot) {
UserInfo userInfo = snapshot.toObject(UserInfo.class);
String itemId = snapshot.getId();
userInfo.setItem_id(itemId);
return userInfo;
}
}).build();
adapter = new FirestoreAdapter(options, this);
myRecycleView.setHasFixedSize(true);
myRecycleView.setLayoutManager(new LinearLayoutManager(this.getActivity()));
myRecycleView.setAdapter(adapter);
Btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String email = UserInfo.getEmail();
fAuth.sendPasswordResetEmail(email)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Toast.makeText(getActivity(), "Password Reset link sent to your registered E-Mail!", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(getActivity(), "Failed to send reset email!", Toast.LENGTH_SHORT).show();
}
}
});
}
});
return v;
}
@Override
public void onStop() {
super.onStop();
adapter.stopListening();
}
@Override
public void onStart() {
super.onStart();
adapter.startListening();
}
@Override
public void onItemClick(DocumentSnapshot snapshot, int position) {
Log.d("Item_CLICK", "Clicked the item : " + position + "and the ID:" + snapshot.getId());
}
}
public class FirestoreAdapter extends FirestorePagingAdapter<UserInfo, FirestoreAdapter.UserViewHolder> {
private OnItemClickListener onItemClickListener;
public FirestoreAdapter(@NonNull FirestorePagingOptions<UserInfo> options, OnItemClickListener onItemClickListener) {
super(options);
this.onItemClickListener = onItemClickListener;
}
@Override
protected void onBindViewHolder(@NonNull UserViewHolder holder, int position, @NonNull UserInfo model) {
holder.list_email.setText(model.getEmail());
holder.list_fname.setText(model.getFName());
}
@NonNull
@Override
public UserViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.example_item, parent, false);
return new UserViewHolder(view);
}
public class UserViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
private TextView list_email;
private TextView list_fname;
public UserViewHolder(@NonNull View itemview) {
super(itemview);
list_email = itemView.findViewById(R.id.textView);
list_fname = itemView.findViewById(R.id.textView2);
itemview.setOnClickListener(this);
}
@Override
public void onClick(View v) {
onItemClickListener.onItemClick(getItem(getAdapterPosition()), getAdapterPosition());
}
}
public interface OnItemClickListener{
void onItemClick(DocumentSnapshot snapshot, int position);
}
}
@Override
public void onItemClick(DocumentSnapshot snapshot, int position) {
UserInfo userInfo = snapshot.toObject(UserInfo.class);
Log.d("Item_CLICK", "Clicked the item : " + position + "and the ID:" + userInfo.getEmail()+" and the fname"+userInfo.getFName());
}