我在eclipse中有这个代码，我有很多列表项，我只是缩短了代码。这里的问题是，每当我搜索某个项目时，语音音频就不再与该项目匹配。我想知道我是否可以为列表项分配索引。它甚至可能吗？
public class IndexActivity extends Activity implements OnClickListener{
Button btnHome;
Button btnBack;
Button btnHelp;
Button btnCateg;
// List view
private ListView lv1;
// Listview Adapter
ArrayAdapter<String> adapter1;
// Search EditText
EditText inputSearch1;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_index);
TabHost th = (TabHost) findViewById (R.id.tabhost);
th.setup();
TabSpec ts = th.newTabSpec("tag1");
ts.setContent(R.id.tab1);
ts.setIndicator("Chavacano - English");
th.addTab(ts);
ts = th.newTabSpec("tag2");
ts.setContent(R.id.tab2);
ts.setIndicator("English - Chavacano");
th.addTab(ts);
btnHome = (Button) findViewById(R.id.btnHome);
btnHome.setOnClickListener(this);
btnBack = (Button) findViewById(R.id.btnBack);
btnBack.setOnClickListener(this);
btnHelp = (Button) findViewById(R.id.btnHelpFooter);
btnHelp.setOnClickListener(this);
btnCateg = (Button) findViewById(R.id.btnCategoriesFooter);
btnCateg.setOnClickListener(this);
// Listview Data
final String products1[] = {
"January - Enero",
"February - Pebrero",
"March - Marso",
"April - Abril",
"May - Mayo",
"June - Hunyo",
"July - Hulyo",
"August - Agosto",
"September - Setyembre",
"October - Oktubre",
"November - Nobyembre",
"December - Disyembre"
};
lv1 = (ListView) findViewById(R.id.list_view1);
inputSearch1 = (EditText) findViewById(R.id.txtSearch1);
// Adding items to listview
adapter1 = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products1);
//adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.btnSound);
lv1.setAdapter(adapter1);
//Audio
lv1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> a, View v, int position, long id)
{
//oneoclock
if (lv1.getItemIdAtPosition(position) == 0)
{
MediaPlayer january = MediaPlayer.create(IndexActivity.this, R.raw.oneoclock);
january.start();
}
//February
else if (lv1.getItemIdAtPosition(position) == 1)
{
MediaPlayer february = MediaPlayer.create(IndexActivity.this, R.raw.fiveoclock);
february.start();
}
//March
else if (lv1.getItemIdAtPosition(position) == 2)
{
MediaPlayer march = MediaPlayer.create(IndexActivity.this, R.raw.below);
march.start();
}
//April
else if (lv1.getItemIdAtPosition(position) == 3)
{
MediaPlayer april = MediaPlayer.create(IndexActivity.this, R.raw.open);
april.start();
}
//May
else if (lv1.getItemIdAtPosition(position) == 4)
{
MediaPlayer may = MediaPlayer.create(IndexActivity.this, R.raw.abio);
may.start();
}
//June
else if (lv1.getItemIdAtPosition(position) == 5)
{
MediaPlayer june = MediaPlayer.create(IndexActivity.this, R.raw.aboard);
june.start();
}
//July
else if (lv1.getItemIdAtPosition(position) == 6)
{
MediaPlayer july = MediaPlayer.create(IndexActivity.this, R.raw.april);
july.start();
}
//August
else if (lv1.getItemIdAtPosition(position) == 7)
{
MediaPlayer august = MediaPlayer.create(IndexActivity.this, R.raw.boring);
august.start();
}
//September
else if (lv1.getItemIdAtPosition(position) == 8)
{
MediaPlayer september = MediaPlayer.create(IndexActivity.this, R.raw.take);
september.start();
}
//October
else if (lv1.getItemIdAtPosition(position) == 9)
{
MediaPlayer october = MediaPlayer.create(IndexActivity.this, R.raw.achara);
october.start();
}
//November
else if (lv1.getItemIdAtPosition(position) == 10)
{
MediaPlayer november = MediaPlayer.create(IndexActivity.this, R.raw.remember);
november.start();
}
//December
else if (lv1.getItemIdAtPosition(position) == 11)
{
MediaPlayer december = MediaPlayer.create(IndexActivity.this, R.raw.inside);
december.start();
}
}
});
inputSearch1.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
IndexActivity.this.adapter1.getFilter().filter(cs);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {}
@Override
public void afterTextChanged(Editable arg0) {}
});
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.btnHome){
startActivity(new Intent(this, HomescreenActivity.class));
MediaPlayer button = MediaPlayer.create(IndexActivity.this, R.raw.button);
button.start();
}
else if (v.getId() == R.id.btnBack){
finish();
MediaPlayer button = MediaPlayer.create(IndexActivity.this, R.raw.button);
button.start();
}
else if (v.getId() == R.id.btnHelpFooter){
startActivity(new Intent(this, HelpActivity.class));
MediaPlayer button = MediaPlayer.create(IndexActivity.this, R.raw.button);
button.start();
}
else if (v.getId() == R.id.btnCategoriesFooter){
startActivity(new Intent(this, CategoriesActivity.class));
MediaPlayer button = MediaPlayer.create(IndexActivity.this, R.raw.button);
button.start();
}
}
}
答案 0 :(得分：-1)
项目不再匹配的原因是因为你正在使用getItemIdAtPosition Android文档不多说它但我不会依赖它，因为这似乎是问题的来源。我建议使用position（可能我从未使用适配器的过滤器功能）或使用lv1.getItemAtPosition(position)并且应该返回适配器中的选定项（在本例中为字符串）并使用确定你要播放的声音。
您还可以创建一个自定义类，其中包含要显示的字符串和要播放的声音引用，然后由getItemAtPosition返回，您可以使用媒体播放器的声音参考。那样你就不需要这个巨人如果阻止了。