如何添加搜索？
问题描述：
如何在我的android应用程序中添加搜索功能？我有一个listview，我想添加搜索功能。我有代码，但我不知道如何将其与我的应用程序正确集成。下面是代码：如何添加搜索？
private ListView listView;
List<Dog> dogs = new ArrayList<>();
int dataSize;
String[]breed;
public Dog listDog = new Dog();
private SearchView searchView;
ArrayAdapter<String>adapter = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
searchView = (SearchView)findViewById(R.id.search);
initInstances();
setupSearchView();
}
private void initInstances() {
prepareData();
ListAdapter adapter = new ListAdapter(MainActivity.this, listDog);
listView = (ListView) findViewById(R.id.list_item);
listView.setAdapter(adapter);
listView.setOnItemClickListener(listViewClickListener);
}
private void setupSearchView() {
searchView.setIconifiedByDefault(false);
searchView.setOnQueryTextListener(this);
searchView.setSubmitButtonEnabled(true);
searchView.setQueryHint("Искать кота");
}
private void prepareData() {
int resId[] = {R.drawable.german_shepherd, R.drawable.labrador_retriever, R.drawable.blue_dog, R.drawable.beagle
, R.drawable.boxer, R.drawable.golden_retriever, R.drawable.poodle, R.drawable.pug, R.drawable.siberian_husky,
R.drawable.great_dane, R.drawable.german_shepherd, R.drawable.labrador_retriever, R.drawable.blue_dog, R.drawable.beagle
, R.drawable.boxer, R.drawable.golden_retriever, R.drawable.poodle, R.drawable.pug, R.drawable.siberian_husky,
R.drawable.great_dane, R.drawable.german_shepherd, R.drawable.labrador_retriever, R.drawable.blue_dog, R.drawable.beagle
, R.drawable.boxer, R.drawable.golden_retriever, R.drawable.poodle, R.drawable.pug, R.drawable.siberian_husky,
R.drawable.great_dane, R.drawable.german_shepherd, R.drawable.labrador_retriever, R.drawable.blue_dog, R.drawable.beagle
, R.drawable.boxer, R.drawable.golden_retriever, R.drawable.poodle, R.drawable.pug, R.drawable.siberian_husky,
R.drawable.great_dane};
breed = new String [] {"German shepherd", "Labrador retriever", "Bull dog", "Beagle",
"Boxer", "Golden retriever", "Poodle", "Pug", "Siberian husky",
"Great dane", "German shepherd", "Labrador retriever", "Bull dog", "Beagle",
"Boxer", "Golden retriever", "Poodle", "Pug", "Siberian husky",
"Great dane", "German shepherd", "Labrador retriever", "Bull dog", "Beagle",
"Boxer", "Golden retriever", "Poodle", "Pug", "Siberian husky",
"Great dane", "German shepherd", "Labrador retriever", "Bull dog", "Beagle",
"Boxer", "Golden retriever", "Poodle", "Pug", "Siberian husky",
"Great dane"};
String description[] = {getString(R.string.Юлмарт), getString(R.string.ЮлияСадовая), getString(R.string.Ювелирныймагазин585), getString(R.string.Альфа)
, getString(R.string.Электромонтаж), getString(R.string.АгрокомплексКарла93), getString(R.string.АгрокомплексКарла363), getString(R.string.ДобрыеСемена), getString(R.string.АгрокомплексКрасная93)
, getString(R.string.Глобус), getString(R.string.ПланетаДетства), getString(R.string.АгрокомплексКрасная152), getString(R.string.Золушка), getString(R.string.Офискласс118)
, getString(R.string.СалонцветовLadyFlower), getString(R.string.ДекорЮг), getString(R.string.Глобус), getString(R.string.АгрокомплексКрасная25), getString(R.string.ОфисКласс106)
, getString(R.string.ПятёрочкаБувальцева26), getString(R.string.БаронДиваноффКрасная1), getString(R.string.Рынок), getString(R.string.Новинтех), getString(R.string.ГлорияДжинс)
, getString(R.string.ЦифровойсупермаркетDNS), getString(R.string.Евроремонт), getString(R.string.Гейзер), getString(R.string.Нива), getString(R.string.ДвериАдамКомунистическая20)
, getString(R.string.ЦветыДоставка), getString(R.string.БытКубани), getString(R.string.РынокКореновскоеРАЙПО), getString(R.string.Золушка), getString(R.string.ДинскиеКолбасы)
, getString(R.string.Цветы), getString(R.string.Тимур), getString(R.string.АгрокомплексКомунистическая20), getString(R.string.АгрокомплексКарла363), getString(R.string.МебельныймагазинРз59)
, getString(R.string.Изумруд),};
dataSize = resId.length;
adapter = new ArrayAdapter<String>(this, R.layout.list_item,breed);
Log.d("khem", "dataSize " + resId.length);
Log.d("khem", "breed " + resId.length);
Log.d("khem", "description " + resId.length);
for (int i = 0; i < dataSize; i++) {
Log.d("khem", " " + i);
Dog dog = new Dog(resId[i], breed[i], description[i]);
dogs.add(dog);
}
listDog.setDogs(dogs);
//Log.d("khem",listDog);
}
public boolean onQueryTextSubmit(String query) {
return false;
}
public boolean onQueryTextChange(String newText) {
if (TextUtils.isEmpty(newText)) {
listView.clearTextFilter();
} else {
listView.setFilterText(newText.toString());
}
return true;
}
/*************************
* Listener
***************************/
AdapterView.OnItemClickListener listViewClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "POSITION:= " + position,
Toast.LENGTH_SHORT).show();
Intent intent = new Intent(MainActivity.this,ShowDetailActivity.class);
intent.putExtra("resId",listDog.getDogs().get(position).getResId());
intent.putExtra("breed",listDog.getDogs().get(position).getBreed());
intent.putExtra("desc",listDog.getDogs().get(position).getDescription());
startActivity(intent);
}
};
}
答
1更改ListAdapter到SimpleAdapter
2 - 使适配器的全局变量，
那么你可以用用getFilter方法
注：我m从editText获取要搜索的单词中的单词，并在使用TextChanged监听器写入单词时执行搜索
EditText grabResults;
grabResults.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
adapter.getFilter().filter(s);
}
@Override
public void afterTextChanged(Editable s) {
}
});
你可以把任何你想:)
adapter.getFilter().filter(s);