[]
firebase.database.DatabaseException: Failed to convert value of type java.lang.Long to String
我正在尝试将此数据添加到FirebaserecyclerAdapter并收到此错误
这是数据库参考
databaseReference = FirebaseDatabase.getInstance().getReference().child("questions");
这就是我使用RecyclerViewAdapter的方法
FirebaseRecyclerAdapter<History, HistoryViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<History, HistoryViewHolder>(
History.class, R.layout.history_list_item, HistoryViewHolder.class, databaseReference) {
@Override
protected void populateViewHolder(HistoryViewHolder viewHolder, History model, int position) {
viewHolder.setMyanswer(model.getMyAnswer());
viewHolder.setCorrentAnswer(model.getCorrectAnswer());
viewHolder.setimageUrl(getApplicationContext(), model.getimageUrl());
}
};
recyclerView.setAdapter(firebaseRecyclerAdapter);
解决方法:
数据库中的两个节点确实存在数据类型不匹配的情况:
myAnswer : "21"
myAnswer : 11
如果你想让它成为一个String,它应该是:
myAnswer : "21"
myAnswer : "11"
或者,让他们长:
myAnswer : 21
myAnswer : 11
确保在添加数据时注意一致性