我实现了一个多选对话框，让用户可以选择多个项目。我想在对话框中实现一个搜索视图。但是，问题是：由于多选对话框处理数组，我无法根据搜索结果修改列表视图。我已经在几个项目中的活动。我想在所有这些多选对话框中包含搜索视图。因此，我正试图通过这种方式(在多选项对话框中)修复它而不是选择不同的方法，即将包含搜索视图和自定义列表视图的布局设置为对话框。此代码引发ArrayIndexOutOfBoundsException因为，当我尝试修改时，checkedColours和buildingNames数组中的项数与初始长度不同列表视图。我们能让搜索视图以这种方式工作吗？如果这种方法似乎不起作用，请建议一些遵循另一种方法的技巧(在对话框中使用带有搜索视图和自定义列表视图的布局)。如有任何帮助，我们将不胜感激。提前谢谢。
对话框看起来像这个链接中的图像
protected void showSelectBuildingsDialog(final ArrayList<ResourceModel> buildings) {
final boolean[] checkedColours = new boolean[buildings.size()+1];
final HashMap<String,Boolean> tempCheckBuilding=new HashMap<String, Boolean>();
int count = buildings.size();
checkedColours[0]=all;
String s="";
for(int i = 0; i < count; i++) {
if(flag) {
for(int j=0;j<sm.getServiceResourceMaps().size();j++) {
if(sm.getServiceResourceMaps().get(j).getResource()!=null) {
if (buildings.get(i).getId() == sm.getServiceResourceMaps().get(j).getResource().getId()) {
checkedColours[i + 1] = true;
if (!s.contains(buildings.get(i).getResourceCode())) {
if(s.trim().length()==0)
s += buildings.get(i).getResourceCode();
else
s += ", "+buildings.get(i).getResourceCode();
tempCheckBuilding.put(buildings.get(i).getResourceCode(), true);
}
}
}
}
} else
checkedColours[i+1]=checkBuilding.get(resourcemodel.get(i).getResourceCode());
}
if(flag) {
chooseBuildings.setText(s);
}
final DialogInterface.OnMultiChoiceClickListener coloursDialogListener = new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
ListView list = ((AlertDialog) dialog).getListView();
if(isChecked) {
if(which==0) {
checkedColours[0] = true;
all=true;
selectedBuildings.clear();
for (int i=0; i < list.getCount(); i++) {
checkedColours[i]=true;
list.setItemChecked(i, true);
if(i>0)
tempCheckBuilding.put(resourcemodel.get(i-1).getResourceCode(),true);
}
for(int i=0;i<buildings.size();i++) {
selectedBuildings.add(buildings.get(i));
}
} else {
boolean flag=true;
for(int i=1;i<checkedColours.length;i++) {
if(checkedColours[i]==false)
flag=false;
}
if(flag)
list.setItemChecked(0,true);
selectedBuildings.add(buildings.get(which - 1));
checkedColours[which]=true;
tempCheckBuilding.put(resourcemodel.get(which - 1).getResourceCode(), true);
}
} else {
if(which==0) {
checkedColours[0] = false;
all=false;
for (int i=0; i < list.getCount(); i++) {
checkedColours[i]=false;
list.setItemChecked(i, false);
if(i>0)
tempCheckBuilding.put(resourcemodel.get(i-1).getResourceCode(),false);
}
for(int i=0;i<buildings.size();i++) {
selectedBuildings.remove(buildings.get(i));
}
} else {
checkedColours[0]=false;
list.setItemChecked(0,false);
selectedBuildings.remove(buildings.get(which - 1));
tempCheckBuilding.put(resourcemodel.get(which-1).getResourceCode(), false);
checkedColours[which]=false;
}
}
}
};
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select Buildings");
final String[] buildingNames=new String[buildings.size()+1];
buildingNames[0]="Select All Buildings";
for(int i=0;i<buildings.size();i++) {
buildingNames[i+1]=buildings.get(i).getResourceCode();
}
builder.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
for(String key:tempCheckBuilding.keySet()) {
checkBuilding.put(key,tempCheckBuilding.get(key));
}
onChangeSelectedBuildings();
chooseLevels.setText(null);
chooseUnits.setText(null);
if(chooseBuildings.getText().toString().trim().length()!=0) {
//proceed by calling appropriate method
}
}
}
});
builder.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.setCancelable(true);
builder.setMultiChoiceItems(buildingNames, checkedColours, coloursDialogListener);
final SearchView searchView=new SearchView(this);
builder.setView(searchView); // setting a searchView to the multi choice dialog
final AlertDialog dialog = builder.create();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
//I want to modify the listview in this method, but since 'coloursDialogListener' is dealing with arrays such as 'checkedColours, buildingNames etc,
//I can't do so. I tried setting an adapter to the listview, but it doesn't seem to help for this reason.
ListView listView=((AlertDialog)dialog).getListView();
List<String> list=new ArrayList<String>();
List<Boolean> checkList=new ArrayList<Boolean>();
list.add(buildingNames[0]);
checkList.add(checkedColours[0]);
try {
for (int i = 1; i < buildingNames.length;i++) {
listView.getChildAt(i).setVisibility(View.GONE);
Log.d("test i",""+i);
if (buildingNames[i].contains(query)) {
listView.getChildAt(i).setVisibility(View.VISIBLE);
list.add(buildingNames[i]);
if (i < checkedColours.length)
checkList.add(checkedColours[i]);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
ListView list;
if(checkedColours[0]) {
selectedBuildings.clear();
list = ((AlertDialog) dialog).getListView();
for (int i=0; i < list.getCount(); i++) {
list.setItemChecked(i, true);
}
for(int i=0;i<buildings.size();i++) {
selectedBuildings.add(buildings.get(i));
}
} else {
list = ((AlertDialog) dialog).getListView();
for (int i=0; i < list.getCount(); i++) {
list.setItemChecked(i, false);
}
for(int i=0;i<buildings.size();i++) {
selectedBuildings.remove(buildings.get(i));
}
}
if(all)
list.setItemChecked(0,true);
else
list.setItemChecked(0,false);
dialog.show();
}
这是崩溃日志：
java.lang.ArrayIndexOutOfBoundsException: length=3; index=3
at android.support.v7.app.AlertController$AlertParams$1.getView(AlertController.java:891)
at android.widget.AbsListView.obtainView(AbsListView.java:2346)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1281)
at android.widget.ListView.onMeasure(ListView.java:1188)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18809)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5954)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
at android.view.View.measure(View.java:18809)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2112)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1203)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1464)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1119)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6060)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:746)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
也许它会帮助你所有人：
MultiSelectSpinner允许从Spinner中选择多个项目，并从SpinnerItems中搜索/FILTER项目。
public class MultiSpinnerSearch extends Spinner implements OnCancelListener {
private List<KeyPairBoolData> items;
//private boolean[] selected;
private String defaultText;
private MultiSpinnerSearchListener listener;
MyAdapter adapter;
public MultiSpinnerSearch(Context context) {
super(context);
}
public MultiSpinnerSearch(Context arg0, AttributeSet arg1) {
super(arg0, arg1);
}
public MultiSpinnerSearch(Context arg0, AttributeSet arg1, int arg2) {
super(arg0, arg1, arg2);
}
@Override
public void onCancel(DialogInterface dialog) {
// refresh text on spinner
StringBuffer spinnerBuffer = new StringBuffer();
for (int i = 0; i < items.size(); i++) {
if (items.get(i).isSelected() == true) {
spinnerBuffer.append(items.get(i).getName());
spinnerBuffer.append(", ");
}
}
String spinnerText = "";
spinnerText = spinnerBuffer.toString();
if (spinnerText.length() > 2)
spinnerText = spinnerText.substring(0, spinnerText.length() - 2);
else
spinnerText = defaultText;
ArrayAdapter<String> adapterSpinner = new ArrayAdapter<String>(getContext(),
R.layout.textview_for_spinner,
new String[] { spinnerText });
setAdapter(adapterSpinner);
if(adapter != null)
adapter.notifyDataSetChanged();
listener.onItemsSelected(items);
}
@Override
public boolean performClick() {
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(defaultText);
LayoutInflater inflater = (LayoutInflater) getContext().getSystemService( Context.LAYOUT_INFLATER_SERVICE );
View view = inflater.inflate(R.layout.alert_dialog_listview_search, null);
builder.setView(view);
final ListView listView = (ListView) view.findViewById(R.id.alertSearchListView);
listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView.setFastScrollEnabled(false);
adapter = new MyAdapter(getContext(), items);
listView.setAdapter(adapter);
EditText editText = (EditText) view.findViewById(R.id.alertSearchEditText);
editText.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
adapter.getFilter().filter(s.toString());
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
//builder.setMultiChoiceItems(items.toArray(new CharSequence[items.size()]), selected, this);
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.i("TAG", " ITEMS : " + items.size() );
dialog.cancel();
}
});
builder.setOnCancelListener(this);
builder.show();
return true;
}
public void setItems(List<KeyPairBoolData> items, String allText, int position,
MultiSpinnerSearchListener listener) {
this.items = items;
this.defaultText = allText;
this.listener = listener;
ArrayAdapter<String> adapterSpinner = new ArrayAdapter<String>(getContext(),
R.layout.textview_for_spinner,
new String[] { defaultText });
setAdapter(adapterSpinner);
if(position != -1)
{
items.get(position).setSelected(true);
//listener.onItemsSelected(items);
onCancel(null);
}
}
public interface MultiSpinnerSearchListener {
public void onItemsSelected(List<KeyPairBoolData> items);
}
// // Adapter Class
public class MyAdapter extends BaseAdapter implements Filterable {
List<KeyPairBoolData> arrayList;
List<KeyPairBoolData> mOriginalValues; // Original Values
LayoutInflater inflater;
public MyAdapter(Context context, List<KeyPairBoolData> arrayList) {
this.arrayList = arrayList;
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return arrayList.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
private class ViewHolder {
TextView textView;
CheckBox checkBox;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.alert_dialog_listview_search_subview, null);
holder.textView = (TextView) convertView.findViewById(R.id.alertTextView);
holder.checkBox = (CheckBox) convertView.findViewById(R.id.alertCheckbox);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
final KeyPairBoolData data = arrayList.get(position);
holder.textView.setText(data.getName());
holder.checkBox.setChecked(data.isSelected());
convertView.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
ViewHolder temp = (ViewHolder) v.getTag();
temp.checkBox.setChecked(!temp.checkBox.isChecked());
int len = arrayList.size();
for (int i = 0; i < len; i++)
{
if (i == position)
{
data.setSelected(!data.isSelected());
Log.i("TAG", "On Click Selected : " + data.getName() + " : " + data.isSelected());
break;
}
}
}
});
holder.checkBox.setTag(holder);
return convertView;
}
@SuppressLint("DefaultLocale")
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
arrayList = (List<KeyPairBoolData>) 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
List<KeyPairBoolData> FilteredArrList = new ArrayList<KeyPairBoolData>();
if (mOriginalValues == null) {
mOriginalValues = new ArrayList<KeyPairBoolData>(arrayList); // 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 = mOriginalValues.size();
results.values = mOriginalValues;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < mOriginalValues.size(); i++) {
Log.i("TAG", "Filter : " + mOriginalValues.get(i).getName() + " -> " + mOriginalValues.get(i).isSelected());
String data = mOriginalValues.get(i).getName();
if (data.toLowerCase().contains(constraint.toString())) {
FilteredArrList.add(mOriginalValues.get(i));
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
}
}