如何使用SearchView筛选回收视图
如何使用SearchView筛选回收视图
SearchViewSearchViewListRecyclerView.
SearchViewActionBar
MainActivity:
public class MainActivity extends ActionBarActivity {
RecyclerView mRecyclerView;
RecyclerView.LayoutManager mLayoutManager;
RecyclerView.Adapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recycler_view);
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new CardAdapter() {
@Override
public Filter getFilter() {
return null;
}
};
mRecyclerView.setAdapter(mAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}}
PIPIONE浏览 448回答 3
3回答
-
慕的地8271018
你所需要做的就是添加filter方法RecyclerView.Adapter:public void filter(String text) { items.clear(); if(text.isEmpty()){ items.addAll(itemsCopy); } else{ text = text.toLowerCase(); for(PhoneBookItem item: itemsCopy){ if(item.name.toLowerCase().contains(text) || item.phone.toLowerCase().contains(text)){ items.add(item); } } } notifyDataSetChanged();}itemsCopy在适配器的构造函数中初始化，如下所示itemsCopy.addAll(items).如果你这样做了，就打电话filter从…OnQueryTextListener:searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { adapter.filter(query); return true; } @Override public boolean onQueryTextChange(String newText) { adapter.filter(newText); return true; }});这是按姓名和电话号码过滤我的电话簿的一个例子。 -
暮色呼如
在@shrudiKamoji下面以一种更干净的方式，我们可以使用一个可过滤的，它的意思是：public abstract class GenericRecycleAdapter<E> extends RecyclerView.Adapter implements Filterable{ protected List<E> list; protected List<E> originalList; protected Context context; public GenericRecycleAdapter(Context context, List<E> list) { this.originalList = list; this.list = list; this.context = context; } ... @Override public Filter getFilter() { return new Filter() { @SuppressWarnings("unchecked") @Override protected void publishResults(CharSequence constraint, FilterResults results) { list = (List<E>) results.values; notifyDataSetChanged(); } @Override protected FilterResults performFiltering(CharSequence constraint) { List<E> filteredResults = null; if (constraint.length() == 0) { filteredResults = originalList; } else { filteredResults = getFilteredResults(constraint.toString().toLowerCase()); } FilterResults results = new FilterResults(); results.values = filteredResults; return results; } }; } protected List<E> getFilteredResults(String constraint) { List<E> results = new ArrayList<>(); for (E item : originalList) { if (item.getName().toLowerCase().contains(constraint)) { results.add(item); } } return results; }}这里的E是泛型类型，您可以使用类扩展它：public class customerAdapter extends GenericRecycleAdapter<CustomerModel>或者将E改为您想要的类型(<CustomerModel>例如)然后从searchView(可以放在menu.xml上的小部件)：searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String text) { return false; } @Override public boolean onQueryTextChange(String text) { yourAdapter.getFilter().filter(text); return true; }});
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相关分类
Android