我有一个Dialog，用户选择一个选项并更改de adapter，问题是适配器没有更新，我调用的函数返回ItemAdapter然后我更新我的适配器，如setListAdapter(newOne);并且它没有更新，这是完整的代码
public class MyActivity extends ListActivity {
char[] items = { 'e', 'f', 'f', 'f', 'e', 'f', 'e', 'e', 'f', 'f', 'e', 'e', 'f', 'f', 'f', 'e', 'e', 'f', 'f', 'e', 'e', 'f', 'f', 'f', 'e', 'e', 'f', 'f', 'e', 'e', 'f', 'f', 'f', 'e', 'e', 'f', 'f', 'p', 'e', 'e', 'p', 'f', 'f', 'f', 'e', 'e', 'a', 'f', 'p', 'f', 'e', 'e', 'f', 'f', 'p', 'f', 'e', 'a', 'e', 'p', 'f', 'f', 'e', 'p', 'e', 'f', 'f', 'f', 'a', 'p', 'e', 'e', 'p', 'f', 'f', 'e', 'p', 'e', 'f', 'p', 'f', 'e', 'f', 'e', 'f' };
int[] horas = {00, 01, 03, 04, 04, 05, 05, 05, 06, 06, 06, 06, 07, 07, 07, 07, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 22, 22, 23, 23,};
int[] minutos = {20, 00, 00, 00, 30, 10, 25, 40, 10, 20, 40, 50, 00, 10, 30, 50, 00, 20, 40, 00, 10, 20, 30, 50, 10, 20, 40, 00, 20, 30, 40, 50, 10, 30, 40, 10, 20, 30, 40, 50, 00, 00, 10, 30, 50, 00, 10, 20, 30, 40, 00, 10, 30, 50, 50, 00, 10, 20, 20, 30, 40, 00, 20, 30, 30, 50, 10, 20, 20, 30, 30, 40, 50, 00, 20, 40, 50, 50, 10, 15, 30, 00, 40, 10, 50};
String[] total = new String[horas.length];
String[] tipos = {"Etacer", "Fluviales", "Fluviales al pozo", "Fluviales a abogacia"};
// declare class variables
private ArrayList<Item> m_parts = new ArrayList<Item>();
private Runnable viewParts;
private ItemAdapter m_adapter;
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
for (int i = 0; i < items.length; i++) {
total[i] = String.format("%02d",horas[i]) + ":" + String.format("%02d",minutos[i]);
}
int cuantos_f = cuantosF('f');
// instantiate our ItemAdapter class
m_adapter = new ItemAdapter(this, R.layout.row, m_parts);
for (int i = 0; i < items.length; i++) {
m_parts.add(new Item(horas[i], minutos[i], items[i], total[i]));
}
m_adapter = new ItemAdapter(MyActivity.this, R.layout.row, m_parts);
// display the list.
setListAdapter(m_adapter);
RippleView mButton = (RippleView) findViewById(R.id.btn);
final RippleView filtrar = (RippleView) findViewById(R.id.filtrar);
filtrar.setRippleColor(Color.parseColor("#2ecc71"), 0.8f);
mButton.setRippleColor(Color.parseColor("#2ecc71"), 0.8f);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//your code
mostrarSiguiente();
}
});
filtrar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(MyActivity.this);
builder.setTitle("Pick a color");
builder.setItems(tipos, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ItemAdapter newOne = filtrar_tipo(which);
setListAdapter(newOne); // Here it should update
}
});
builder.show();
}
});
final Handler mHandler = new Handler();
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
while (true) {
try {
Thread.sleep(1000);
mHandler.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
// Write your code here to update the UI.
m_adapter.notifyDataSetChanged();
}
});
} catch (Exception e) {
// TODO: handle exception
}
}
}
}).start();
}
private ItemAdapter filtrar_tipo(int i) {
/* 0 etacer - 1 Fluvales - 2 fluviales al pozo - 3 fluv abogacia */
ItemAdapter adapter;
char letra = 'g';
int contador;
switch (i){
case 0: letra = 'e'; break;
case 1: letra = 'f'; break;
case 2: letra = 'p'; break;
case 3: letra = 'a'; break;
}
contador = cuantosF(letra);
Log.e("Contador", String.valueOf(contador));
ArrayList<Integer> minutosf = new ArrayList<Integer>();
ArrayList<Integer> horasf = new ArrayList<Integer>();
ArrayList<String> fin = new ArrayList<String>();
ArrayList<Character> letras = new ArrayList<Character>();
for (int h = 0; h < contador; h++) {
minutosf.add(h,minutos[h]);
horasf.add(h,horas[h]);
letras.add(h,items[h]);
}
int[] minutosFinales = aArray(minutosf);
int[] horasFinales = aArray(horasf);
for (int y = 0; y < contador; y++) {
fin.add(String.format("%02d",horasFinales[y]) + ":" + String.format("%02d",minutosFinales[y]));
}
String[] listaFinal = fin.toArray(new String[fin.size()]);
adapter = new ItemAdapter(this, R.layout.row, m_parts);
for (int t = 0; t < contador; t++) {
m_parts.add(new Item(horasFinales[t], minutosFinales[t], letra, listaFinal[t]));
}
adapter = new ItemAdapter(MyActivity.this, R.layout.row, m_parts);
// display the list.
return adapter;
}
private int cuantosF(char mi_char) {
int contador = 0;
for (int j = 0; j < items.length; j++) {
if (items[j] == mi_char){
contador++;
}
}
return contador;
}
private int[] aArray(List<Integer> integers) {
int[] ints = new int[integers.size()];
int i = 0;
for (Integer n : integers) {
ints[i++] = n;
}
return ints;
}
private void mostrarSiguiente() {
Calendar rightNow = Calendar.getInstance();
int hour = rightNow.get(Calendar.HOUR_OF_DAY);
int min = rightNow.get(Calendar.MINUTE);
int mejor_pos = 999, menor_resta = 1500;
for (int i = 0; i < horas.length; i++) {
if((horas[i]*60 + minutos[i] - (hour*60+min)) > 0){
if ((horas[i]*60 + minutos[i] - (hour*60+min)) < menor_resta){
mejor_pos = i;
menor_resta = (horas[i]*60 + minutos[i] - (hour*60+min));
}
}
}
ListView lv = getListView();
lv.smoothScrollToPosition(mejor_pos);
}
}
如果有人能帮助我，那会让我开心：）
先谢谢