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我們有一個列表視圖片段，其中包含一個列表視圖，編輯文本（用於搜索）和複選框（全選）。如前所述，我們使用編輯文本從列表視圖中搜索值。ListView中的搜索過濾器不按預期工作
問題：
- 我們有顯示10個項目列表視圖（列表視圖按字母順序排序）。
- 當我們在編輯文本中輸入'W'時，會顯示兩個值，即WF和WH。
- 選擇WF（顯示第一項）。
- 清除編輯文本中的字符後，我們現在顯示列表視圖的完整列表。
- 但是現在選擇AHMD列表中的第一項。 （我們打算選擇WF）
基本上，在我們執行搜索後，列表視圖中數據的位置沒有被刷新。
代碼：
public static class ListViewFragment extends Fragment {
private ListView myListView;
private EditText editsearch;
private CheckBox selectAll;
private String SELECTED_FILTER;
private ArrayList<String> SelectedFilter1;
private ArrayList<String> checkekprev=new ArrayList<String>();
private ArrayList<String> CheckedFitlers=new ArrayList<String>();
ArrayAdapter<String> adapter_list;
OnCheckedItemsLister onCheckedItemsLister;
public ListViewFragment() {
// Empty constructor required for fragment subclasses
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
onCheckedItemsLister = (OnCheckedItemsLister) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement onSomeEventListener");
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setRetainInstance(true);
SelectedFilter1=getArguments().getStringArrayList("ArrayList");
SELECTED_FILTER=getArguments().getString("SELECTED_FILTER");
checkekprev=getArguments().getStringArrayList("checkedprevlist");
if(checkekprev.size()==SelectedFilter1.size())
selectAll.setChecked(true);
else
selectAll.setChecked(false);
adapter_list = new ArrayAdapter<String>(this.getActivity(),
android.R.layout.simple_list_item_multiple_choice,SelectedFilter1);
adapter_list.notifyDataSetChanged();
myListView.setAdapter(adapter_list);
myListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
myListView.setTextFilterEnabled(true);
try{
if(checkekprev.isEmpty()==false){
Log.i("Adapter set", "Yes");
for(int j=0;j<checkekprev.size();j++){
Log.i("Adapter set", "Yes:"+j);
int pos=adapter_list.getPosition(checkekprev.get(j));
Log.i("Adapter set", "Pos:"+pos);
myListView.setItemChecked(pos,true);
}
}
}catch(NullPointerException e){
Log.i("Null set", "Yes");
}
editsearch.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
String text = editsearch.getText().toString().toLowerCase(Locale.getDefault());
adapter_list.getFilter().filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
});
selectAll.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
Log.i("CheckBOX","Is Checked:"+isChecked);
if(isChecked)
{
for (int i=0; i< myListView.getCount(); i++)
myListView.setItemChecked(i, true);
}else
{
for (int i=0; i< myListView.getCount(); i++)
myListView.setItemChecked(i, false);
}
SparseBooleanArray checked = myListView.getCheckedItemPositions();
CheckedFitlers.clear();
for(int i=0;i<=checked.size();i++){
if (checked.get(i)){
CheckedFitlers.add(SelectedFilter1.get(i));
}
}
onCheckedItemsLister.someEvent(CheckedFitlers,SELECTED_FILTER);
}
}
);
myListView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,int position, long id){
setItemChecked(position);
onCheckedItemsLister.someEvent(CheckedFitlers,SELECTED_FILTER);
}
});
}
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
if(savedInstanceState!=null){
checkekprev=savedInstanceState.getStringArrayList("Checked_Values");
}
}
public void setItemChecked(int position){
//if(SelectedFilter1.get(position).)
//int len = myListView.getCount();
SparseBooleanArray checked = myListView.getCheckedItemPositions();
for(int i=0;i<=checked.size();i++){
Log.i("Check Sparse Array","Check Sparse Array: "+checked.get(i));
}
//for (int i = 0; i < len; i++){
Log.i("SelectedFilter1.get(position)","SelectedFilter1.get(position):::"+SelectedFilter1.get(position));
Log.i("checked.get(position))","checked.get(position)):::"+checked.get(position));
for (int i=0; i<CheckedFitlers.size();i++){
Log.i("CheckedFitlers","CheckedFitlers:::" + CheckedFitlers.get(i));
}
for (int i=0; i<checkekprev.size();i++){
Log.i("checkekprev","checkekprev:::" + checkekprev.get(i));
}
Log.i("CheckedFitlers","CheckedFitlers:::" + CheckedFitlers.size());
Log.i("checkekprev","checkekprev:::" + checkekprev.size());
if(CheckedFitlers.size() == 0 && checkekprev.size() != 0){
CheckedFitlers = checkekprev;
}
Log.i("CheckedFitlers","CheckedFitlers:::" + CheckedFitlers.size());
if (checked.get(position)) {
Log.i("Adding","Adding::"+checked.get(position));
CheckedFitlers.add(SelectedFilter1.get(position));
for(int i=0;i<checkekprev.size();i++){
//Log.i("Checked Filters FOr loop","Checked Filters:"+CheckedFitlers.get(i));
}
} else
{
Log.i("Removing","Removing::"+checked.get(position)+":"+SelectedFilter1.get(position));
CheckedFitlers.remove(SelectedFilter1.get(position));
for(int i=0;i<checkekprev.size();i++){
//Log.i("Checked Filters for loop","Checked Filters:"+CheckedFitlers.get(i));
}
}
Log.i("CheckedFitlers","CheckedFitlers:::" + CheckedFitlers.size());
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_list_view, container, false);
myListView=(ListView) rootView.findViewById(R.id.listView_brand);
editsearch = (EditText) rootView.findViewById(R.id.search);
selectAll=(CheckBox) rootView.findViewById(R.id.checkBox1);
selectAll.setFocusable(false);
return rootView;
}
public void onSaveInstanceState(Bundle savedInstanceState){
super.onSaveInstanceState(savedInstanceState);
Log.i("savedInstanceState in listfragment","savedInstanceState in listfragment");
//onCheckedItemsLister.someEvent(CheckedFitlers,SELECTED_FILTER);
onCheckedItemsLister.getSelectedFilter(SELECTED_FILTER);
}
}
檢查：http://stackoverflow.com/questions/25844210/how-to-select-multiple-items-in-a-listview-populated-from-arraylist-in-android/25844671#25844671 – 2014-09-19 04:34:23