android - Different text color each item of listview when populating using simple adapter -

i'm trying set different text color of each item inside listview when populating item pict below, can't make work,

the idea if number of "rata-rata" exceed 75 text color set black, if below set red.

here's code, i'm overriding getview method :

calonsiswa.add(map);  list = (listview) findviewbyid(r.id.list);    listadapter adapter = new simpleadapter(seleksinilai.this,    calonsiswa,    r.layout.activity_seleksi_nilai_single_item_view,    new string[] {      tag_no_urutan, tag_no_pendaftaran,      tag_nama_lengkap, tag_jurusan,      tag_rata_rata_nilai, tag_cara_seleksi    },    new int[] {      r.id.nomorurutan, r.id.nopendaftar,        r.id.namapendaftar, r.id.jurusanpendaftar,        r.id.rataratanilai, r.id.caraseleksi    }) {    @override    public view getview(int position, view convertview,      viewgroup parent) {      view view = super.getview(position, convertview,        parent);      float ratarata = float.parsefloat(rata_rata);      int posisi = position;      int textcolorid = r.color.black;      textview text;      text = (textview) view        .findviewbyid(r.id.nopendaftar);        if (ratarata <= 75) {        textcolorid = r.color.red;      } else if (ratarata >= 75) {        textcolorid = r.color.black;      }      text.settextcolor(getresources().getcolor(        textcolorid));      return view;    }  };

here's pict if change order lowest highest number, seems problem whenever last number exceed or below 75, change item color inside listview, not specific position

here's complete code :

private class getdata extends asynctask < string, string, jsonobject > {    private progressdialog pdialog;    string nomor, no_pendaftaran, nama_lengkap, jurusan, rata_rata, cara_seleksi;      @    override    protected void onpreexecute() {      super.onpreexecute();      nopendaftaran = (textview) findviewbyid(r.id.nopendaftar);      namapendaftar = (textview) findviewbyid(r.id.namapendaftar);      statusproses = (textview) findviewbyid(r.id.rataratanilai);      pdialog = new progressdialog(seleksinilai.this);      pdialog.setmessage("getting data ...");      pdialog.setindeterminate(false);      pdialog.setcancelable(true);      pdialog.show();      }      @    override    protected jsonobject doinbackground(string...args) {        // getting json url      jsonobject json = jparser.getjsonfromurl(url);      return json;    }      @    override    protected void onpostexecute(jsonobject json) {      pdialog.dismiss();      try {        // getting json array url        pendaftar = json.getjsonarray(tag_os);          (int = 0; < pendaftar.length(); i++) {          jsonobject c = pendaftar.getjsonobject(i);            // storing json item in variable          nomor = string.valueof(i + 1);          no_pendaftaran = c.getstring(tag_no_pendaftaran);          nama_lengkap = c.getstring(tag_nama_lengkap);          jurusan = c.getstring(tag_jurusan);          rata_rata = c.getstring(tag_rata_rata_nilai);          cara_seleksi = c.getstring(tag_cara_seleksi);            // adding value hashmap key => value            hashmap < string, string > map = new hashmap < string, string > ();            map.put(tag_no_urutan, nomor);          map.put(tag_no_pendaftaran, no_pendaftaran);          map.put(tag_nama_lengkap, nama_lengkap);          map.put(tag_jurusan, jurusan);          map.put(tag_rata_rata_nilai, rata_rata);          map.put(tag_cara_seleksi, cara_seleksi);          /*map.put(tag_status_proses, status_proses);*/            calonsiswa.add(map);          list = (listview) findviewbyid(r.id.list);            listadapter adapter = new simpleadapter(            seleksinilai.this, calonsiswa,            r.layout.activity_seleksi_nilai_single_item_view,            new string[] {              tag_no_urutan, tag_no_pendaftaran, tag_nama_lengkap, tag_jurusan, tag_rata_rata_nilai, tag_cara_seleksi            },            new int[] {              r.id.nomorurutan, r.id.nopendaftar, r.id.namapendaftar, r.id.jurusanpendaftar, r.id.rataratanilai, r.id.caraseleksi            }) {@            override            public view getview(int position, view convertview, viewgroup parent) {              view view = super.getview(position, convertview, parent);              float ratarata = float.parsefloat(rata_rata);              int posisi = position;              int textcolorid = r.color.black;              textview text;              text = (textview) view.findviewbyid(r.id.nopendaftar);                if (ratarata <= 75) {                textcolorid = r.color.red;              } else if (ratarata >= 75) {                textcolorid = r.color.black;              }              text.settextcolor(getresources().getcolor(textcolorid));              return view;            }          };            list.setadapter(adapter);          }      } catch (jsonexception e) {        e.printstacktrace();      }      }  }

get "rata_rata" position in getview().

rata_rata = calonsiswa.get(position).get(tag_rata_rata_nilai);