我想使用SharedPrefences记录数据,我想在我选择的RecyclerView中注册“ ChipNumberRooms”键。但是它不会保存数据。当我单击RecyclerView时,我希望它进行注册。
@Override
protected void onCreate(Bundle savedInstanceState) {
SharedPreferences prefs = getSharedPreferences("...", Context.MODE_PRIVATE);
final String chipNumberNew =prefs.getString("ChipNumberrr", "0");
}
recyclerViewNew.addOnItemTouchListener(new ProductsNewAdapter(this,
recyclerViewNew, new ClickListener() {
@Override
public void onClick(View view, final int position) {
DatabaseReference mDatabase = FirebaseDatabase.getInstance().getReference();
DatabaseReference refRooms = mDatabase.child(chipNumberNew).child("Rooms");
SharedPreferences prefs = getSharedPreferences("...", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = prefs.edit();
editor.putString("ChipNumberRooms", chipNumberNew);
editor.commit();
refRooms.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()){
....
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
@Override
public void onLongClick(View view, int position) {
}
}));
答案 0 :(得分:-1)
首先,创建一个AppPreference类,并在您的类中创建一些getter和setter,如下所示:-
<source src="https://vid.ly/7f4q4w" type="video/webm">
这是我根据您的需要更改代码的代码,然后在其中设置方法的值以获取价值,只需调用get方法