我有自定义 ListView ，我想过滤它。它有4或5列，并希望在一列上过滤它以显示搜索过滤器的所有结果 我用的时候：
((Filterable) FicheClient1.this.adapter).getFilter().filter(cs);
它显示我加倍并在所有行中过滤。
我的 ListView ：
ArrayList<HashMap<String, String>> clientList = controller.getAllClient();
if(clientList.size()!=0) {
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
clientId = (TextView) view.findViewById(R.id.clientId);
nom = (TextView) view.findViewById(R.id.name);
emailtext = (TextView) view.findViewById(R.id.emailficheclient);
String valclientId = clientId.getText().toString();
String nameString = nom.getText().toString();
String emailString = emailtext.getText().toString();
cli.setNamelist(nameString);
cli.setClientId(valclientId);
cli.setEmailString(emailtext.getText().toString());
Intent objIndent = new Intent(getApplicationContext(),EditNouveauClient.class);
objIndent.putExtra("clientId", valclientId);
objIndent.putExtra("nom", nameString);
startActivity(objIndent);
FicheClient1.this.finish();
}
});
adapter = new SimpleAdapter( FicheClient1.this,clientList, R.layout.client_item_row, new String[] { "clientId","civilite"
,"name","prenom","naissance","email"},
new int[] {R.id.clientId, R.id.civilite, R.id.name, R.id.prenom, R.id.naissance, R.id.emailficheclient});
setListAdapter(adapter);
lv.setTextFilterEnabled(true);
SearchFilter ：
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3
((Filterable) FicheClient1.this.adapter).getFilter().filter(cs);
}
});
答案 0 :(得分：0)
对于过滤器，假设您的edittext名称为searchbar，并且适配器名称为adpater
serchbar.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
adpater.getFilter().filter(cs.toString());
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
adpater中的过滤器将是..
/*** filter text data ***/
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
menuItems = ( ArrayList<HashMap<String, String>>) results.values; // has the filtered values
notifyDataSetChanged(); // notifies the data with new filtered values
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults(); // Holds the results of a filtering operation in values
ArrayList<HashMap<String, String>> FilteredArrList = new ArrayList<HashMap<String, String>>();
if (mDisplayedValues == null) {
mDisplayedValues = new ArrayList<HashMap<String, String>>(menuItems); // saves the original data in mOriginalValues
}
/********
*
* If constraint(CharSequence that is received) is null returns the mOriginalValues(Original) values
* else does the Filtering and returns FilteredArrList(Filtered)
*
********/
if (constraint == null || constraint.length() == 0) {
// set the Original result to return
results.count = mDisplayedValues.size();
results.values = mDisplayedValues;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < mDisplayedValues.size(); i++) {
String data = mDisplayedValues.get(i).get(ServerConstant.key_event_name);
Log.v("publish result", data);
if (data.toLowerCase().startsWith(constraint.toString())) {
Log.i("publish result match",constraint.toString() +"hiiiii " + data);
FilteredArrList.add(mDisplayedValues.get(i));
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
答案 1 :(得分：0)
由于您HashMap有ListView，因此您需要Filterable适配器的工具ListView界面并覆盖此getFilter()您需要编写用于过滤列表的逻辑的方法。
例如：
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
menuItems = ( ArrayList<HashMap<String, String>>) results.values; // has the filtered values
notifyDataSetChanged(); // notifies the data with new filtered values
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults(); // Holds the results of a filtering operation in values
ArrayList<HashMap<String, String>> FilteredArrList = new ArrayList<HashMap<String, String>>();
if (mDisplayedValues == null) {
mDisplayedValues = new ArrayList<HashMap<String, String>>(menuItems); // saves the original data in mOriginalValues
}
/********
*
* If constraint(CharSequence that is received) is null returns the mOriginalValues(Original) values
* else does the Filtering and returns FilteredArrList(Filtered)
*
********/
if (constraint == null || constraint.length() == 0) {
// set the Original result to return
results.count = mDisplayedValues.size();
results.values = mDisplayedValues;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < mDisplayedValues.size(); i++) {
String data = mDisplayedValues.get(i).get(ServerConstant.key_event_name);
Log.v("publish result", data);
if (data.toLowerCase().startsWith(constraint.toString())) {
Log.i("publish result match",constraint.toString() +"hiiiii " + data);
FilteredArrList.add(mDisplayedValues.get(i));
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
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