Can not get inside setOnItemSelectedListener from Spinner

Question

Based on information from Android: Create spinner programmatically from array. I can select room choices from spinner based on ArrayList. However,it never get inside the process setOnItemSelectedListener.I cannot figure out why does it happen.

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_edit_room);
SpaceRoomTable = (TableLayout) findViewById(R.id.tvSpaceRoomTable);
AddroomButton = (Button)findViewById(R.id.btLinkAddRoom);
Backtomenu = (Button) findViewById(R.id.bBackToMenu_DogTrack);
Delete = ContextCompat.getDrawable(this, R.drawable.bin);
dropdown = (Spinner) findViewById(R.id.spinListRoom);
summitDelete  = (Button) findViewById(R.id.btDeleteSummit);


AddroomButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        Intent LinkToEditroom = new Intent (EditRoom.this,AddRoom.class);
        startActivity(LinkToEditroom);
    }
});

Backtomenu.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        Intent LinkToHomeMenu = new Intent(EditRoom.this,HomeMenu.class);
        EditRoom.this.startActivity(LinkToHomeMenu);
    }
});


showRoom();


ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,showitemName);
spinnerArrayAdapter .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
dropdown.setAdapter(spinnerArrayAdapter);

dropdown.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
        //   Log.d("TEST","selection is ");
        Object Itemselected =    adapterView.getItemAtPosition(i);
        Toast.makeText(getApplicationContext(),"Inside"+String.valueOf(Itemselected),Toast.LENGTH_SHORT).show();

    }

    @Override
    public void onNothingSelected(AdapterView<?> adapterView) {

    }
});


}

Possible duplicate of [How to get Spinner selected item value to string?](https://stackoverflow.com/questions/10331854/how-to-get-spinner-selected-item-value-to-string) — Suseendran Kandasamy, Mar 26 '18 at 11:53
String Itemselected = dropdown.getItemAtPosition(i).toString(); — Abhinav Gupta, Mar 26 '18 at 11:57

Abhinav Gupta · Answer 1 · 2018-03-26T12:30:22.783

1

In XML Layout :-

<Spinner
    android:id="@+id/dropdown"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

then, in your activity findViewById like this:-

dropdown= (Spinner) findViewById(R.id.dropdown);

then Create an ArrayAdapter using the string array and a default spinner layout :-

ArrayAdapter<String> spinnerArrayAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,showitemName);
spinnerArrayAdapter .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
dropdown.setAdapter(spinnerArrayAdapter);

For OnIemClickListener use like this:-

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener{ 

Spinner dropdown;
String[] showitemName = {"A","B","C","D","E"};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);



   dropdown= (Spinner) findViewById(R.id.dropdown);
   dropdown.setOnItemSelectedListener(this);

    ArrayAdapter<String> spinnerArrayAdapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,showitemName);
    spinnerArrayAdapter .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    dropdown.setAdapter(spinnerArrayAdapter);

}

  //Performing action onItemSelected and onNothing selected
  @Override
  public void onItemSelected(AdapterView<?> parent, View arg1, int position,long id) {
  Toast.makeText(getApplicationContext(),"Inside" + parent.getItemAtPosition(position) , Toast.LENGTH_LONG).show();
}

  @Override
  public void onNothingSelected(AdapterView<?> arg0) {
  // TODO Auto-generated method stub

}
}

More information:

You can check in details from these links:-

https://developer.android.com/guide/topics/ui/controls/spinner.html https://developer.android.com/reference/android/widget/AdapterView.OnItemSelectedListener.html https://android--code.blogspot.in/2015/08/android-spinner-onitemselected.html http://www.java2s.com/Code/Android/UI/SpinnerItemSelectedListener.htm https://android--code.blogspot.in/2015/08/android-spinner-get-selected-item-text.html

edited Mar 26 '18 at 12:30

answered Mar 26 '18 at 12:22

Abhinav Gupta

2,225
1
14
30

Thank you, I will try It !! – Mr.Kim Mar 26 '18 at 12:53
@Mr.Kim okay try it if it will work please accept my answer and give upvote – Abhinav Gupta Mar 26 '18 at 12:55
Actually, showroom method related to datasnapshot from Firebase so the ArrayList is already be changed all the time. I might have a problem with this. I just guess an assumption. – Mr.Kim Mar 26 '18 at 13:04
@AbhinavI have posted showroom(); Please check it out – Mr.Kim Mar 26 '18 at 13:20
@Abhinavl The Value is came from the Firebase ,so the showitemName will got value from Firebase – Mr.Kim Mar 26 '18 at 14:31
@Mr.Kim have you print this array into logcats? – Abhinav Gupta Mar 26 '18 at 14:32
@Abhinavl Yes, I check It already. I also print it by using Toast – Mr.Kim Mar 26 '18 at 14:34
In addition, the list will be used to get Image from Firebase Storage, so the result show that all images from list room be able to retrieve. I have no idea why does it happen – Mr.Kim Mar 26 '18 at 14:40
@Abhinavl I have post onCreate method. Please check it out. By the way, I have try to implement AdapterView.OnItemSelectedListener following your answer. Unfortunately, It does not get in the selectItem. – Mr.Kim Mar 26 '18 at 15:02
@Mr.Kim please share your onCreate method in question – Abhinav Gupta Mar 26 '18 at 15:02
@Abhinavl Ok, I post It in the question – Mr.Kim Mar 26 '18 at 15:10
use findviewbyId again before onItemClick listener – Abhinav Gupta Mar 26 '18 at 15:13
@Abhinvl It does not get in OnItemSelectListener as the same. The message in Logcat console said : endAllStagingAnimators on 0x55ac130990 (ListPopupWindow$DropDownListView) with handle 0x55ac12d5b0 – Mr.Kim Mar 26 '18 at 15:34

Mr.Kim · Answer 2 · 2018-03-26T15:48:02.143

For more Information about showroom method

public void showRoom()
{
    refroom.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(final DataSnapshot dataSnapshot) {
            int Length_Record = dataSnapshot.child("CurrentUser").child("Tracking").child("ListRoom").child("LIST_ROOM_LENGTH").getValue(int.class);
            int RunRecord =0;
            int printRoom =0;
            final String userId = dataSnapshot.child("CurrentUser").child("UserId").getValue(String.class);


            for (DataSnapshot zonesnapshot : dataSnapshot.child("CurrentUser").child("Tracking").child("ListRoom").getChildren())
            {
                if(printRoom!=Length_Record)
                {
                    zonesnapshot.getValue();
                    String[] parts = String.valueOf(zonesnapshot.getValue()).split(",");
                    String part1 = parts[0]; // Room Id
                    String part2 = parts[1]; // Room Name
                    String part3 = parts[2]; // TypeRoom
                    String OnRoom = dataSnapshot.child("CurrentUser").child("Tracking").child("Location").getValue(String.class);

                    itemsName.add(part2+","+part3);  // put to arraylist to prepare a room choice for deletion
                    showitemName.add(part2+"("+part3+")");
                    itemOfUser.put(userId+"Room"+printRoom,part2+","+part3);  // keep room for each user

                    inRow(dataSnapshot.child("CurrentUser").child("UserId").getValue(String.class), RunRecord, part2, OnRoom, part3);

                }
                printRoom++;

            }



            summitDelete.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {

                    storageReference = storage.getInstance().getReferenceFromUrl("gs://********-*****.appspot.com/imagesRoom").child(userId).child(selection);

                    storageReference.delete().addOnSuccessListener(new OnSuccessListener<Void>() {
                        @Override
                        public void onSuccess(Void aVoid) {

                        }
                    }).addOnFailureListener(new OnFailureListener() {
                        @Override
                        public void onFailure(@NonNull Exception e) {
                           Toast.makeText(getApplicationContext(),"Error Can not delete file",Toast.LENGTH_SHORT).show();
                        }
                    });
                }
            });


        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });
}

score 0 · Answer 3 · answered Mar 26 '18 at 11:56

0

below code will get the selected item text automatically

 public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
     //   Log.d("TEST","selection is ");
      String item = adapterView.getItemAtPosition(i).toString();
        Toast.makeText(getApplicationContext(),"Inside"+item,Toast.LENGTH_SHORT).show();

    }

answered Mar 26 '18 at 11:56

ibad ur rahman

1,381
4
18
40

I have tried this one but the console show message endAllStagingAnimators on 0x55abf0ca00 (ListPopupWindow$DropDownListView) with handle – Mr.Kim Mar 26 '18 at 12:08
It never get in onItemSelected. The application show message stopped running – Mr.Kim Mar 26 '18 at 12:13

Can not get inside setOnItemSelectedListener from Spinner

3 Answers3

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