使用适配器选择微调项目
我创建了一个actvity并有三个标签。在第三个标签中，有一个spinner。我列出了从PAYMENTS致电EXPENSE的两个列表API和cardviews。最初这两个列表将显示混合。 spinner包含“ALL"。PAYMENT和EXPENSE。每当我选择ALL时，通常list默认list。 PAYMENT选项应仅显示付款list，费用应仅显示费用。
屏幕截图
//My whole class
public class Approvals extends AppCompatActivity {
static TextView startDate,endDate;
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
static ArrayList<AsyncTask> asyncTasks=new ArrayList<>();
final static String ALL="All",PAYMENTS="Payments",EXPENSES="Expenses";
String[] Pay = { "Payment", "Expense" };
static CustomAdapter aadapter;
static CustomAdapter padapter;
static CustomAdapter eadapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_approvals);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager.setOffscreenPageLimit(2);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
}
static SearchView searchView;
static ArrayList<ListView> lists=new ArrayList<>();
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_home_search, menu);
searchView=(SearchView) menu.findItem(R.id.menu_search).getActionView();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
final TabLayout tabHost = (TabLayout) findViewById(R.id.tabs);
for(int i=lists.size()-1;i>=0;i--) {
final int Fi=i;
CustomAdapter adapter = (CustomAdapter) lists.get(i).getAdapter();
if (adapter != null) {//for searching
adapter.getFilter(Arrays.asList(1, 3, 7)).filter(searchView.getQuery().toString().trim());/*,new Filter.FilterListener() {
public void onFilterComplete(int count) {
if(count>0){
try {
tabHost.getTabAt(Fi).select();
}
catch (Exception e){
Common.toastMessage(InvoiceSummary.this,e.getMessage());
}
}
}
});*/
}
}
return false;
}
});
return true;
}
static ArrayList<ListView> pre=new ArrayList<>();
public static class PlaceholderFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_previous, container, false);
final LinearLayout fragmentLinear=(LinearLayout)rootView.findViewById(R.id.fragment_linear);
final ListView invoiceList=(ListView)rootView.findViewById(R.id.invoice_list);
pre.add(invoiceList);
if(getArguments().getInt(ARG_SECTION_NUMBER)==1) {//date-wise
final View invoiceHeader = inflater.inflate(R.layout.item_previous_header, null);
fragmentLinear.addView(invoiceHeader);
(invoiceHeader.findViewById(R.id.dates_layout)).setVisibility(View.VISIBLE);
startDate = (TextView) invoiceHeader.findViewById(R.id.start_date);
endDate = (TextView) invoiceHeader.findViewById(R.id.end_date);
List<String> options = new ArrayList<String>();
options.add(ALL);
options.add(PAYMENTS);
options.add(EXPENSES);
final Spinner spinner = (Spinner) rootView.findViewById(R.id.spinner1);
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, options);
dataAdapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
dataAdapter.setDropDownViewResource(R.layout.item_spinner);
spinner.setAdapter(dataAdapter);
Calendar c = Calendar.getInstance();
c.add(Calendar.MONTH, -1);
Calendar today = Calendar.getInstance();
SimpleDateFormat formatted = new SimpleDateFormat("dd-MMM-yyyy", Locale.US);
startDate.setText(formatted.format(c.getTime()));
endDate.setText(formatted.format(today.getTime()));
getDateWiseInvoices(rootView,invoiceHeader,invoiceList);
View.OnClickListener onClickListener=new View.OnClickListener() {
@Override
public void onClick(View v) {
final TextView requiredDate=(TextView)v;
final String oldText=requiredDate.getText().toString();
final Calendar today = Calendar.getInstance();
final Calendar selectedDate=Calendar.getInstance();
DatePickerDialog.OnDateSetListener dateSetListener = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
selectedDate.set(Calendar.YEAR, year);
selectedDate.set(Calendar.MONTH, monthOfYear);
selectedDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
//Setting display text-------
SimpleDateFormat formatted = new SimpleDateFormat("dd-MMM-yyyy", Locale.US);
requiredDate.setText(formatted.format(selectedDate.getTime()));
//Validation--------------
if(!startDate.getText().toString().equals(getResources().getString(R.string.start_date))
&&!endDate.getText().toString().equals(getResources().getString(R.string.end_date))){
try {
Date sDate=formatted.parse(startDate.getText().toString());
Date eDate=formatted.parse(endDate.getText().toString());
if(sDate.after(eDate)){
Common.toastMessage(getContext(),R.string.give_valid);
requiredDate.setText(oldText);
return;
}
} catch (ParseException e) {
requiredDate.setText(oldText);
return;
}
getDateWiseInvoices(rootView,invoiceHeader,invoiceList);
}
}
};
new DatePickerDialog(getContext(), dateSetListener, today.get(Calendar.YEAR), today.get(Calendar.MONTH), today.get(Calendar.DAY_OF_MONTH)).show();
}
};
startDate.setOnClickListener(onClickListener);
endDate.setOnClickListener(onClickListener);
}
return rootView;
}
void getDateWiseInvoices(final View rootView,final View invoiceHeader,final ListView invoiceList){
(rootView.findViewById(R.id.no_items)).setVisibility(View.GONE);
(rootView.findViewById(R.id.list_card)).setVisibility(View.GONE);
invoiceList.setAdapter(null);
final Common common = new Common();
String webService = "/API/Approver/GetPreviousApprovalsInfo";
String postData = "{\"FromDate\":\"" + startDate.getText().toString() + "\",\"ToDate\":\"" + endDate.getText().toString() + "\"}";
AVLoadingIndicatorView loadingIndicator = (AVLoadingIndicatorView) rootView.findViewById(R.id.loading_indicator);
String[] dataColumns = {};
Runnable postThread = new Runnable() {
@Override
public void run() {
try {
JSONArray invoices = new JSONArray(common.json);
if(invoices.length()==0){
(rootView.findViewById(R.id.no_items)).setVisibility(View.VISIBLE);
return;
}
ArrayList<String[]> invoiceListData = new ArrayList<>();
for (int i = 0; i < invoices.length(); i++) {
JSONObject jsonObject1 = invoices.getJSONObject(i);
String[] data = new String[8];
data[0] = jsonObject1.getString("ID");
data[1] = jsonObject1.getString("EntryNo");
data[2] = jsonObject1.getString("Company");
data[3] = jsonObject1.getString("Date");
data[4] = jsonObject1.getString("PaymentMode");
data[5] = jsonObject1.getString("Amount");
data[6] = jsonObject1.getString("Type");
data[7] = jsonObject1.getString("ApprovalDate");
invoiceListData.add(data);
}
CustomAdapter adapter = new CustomAdapter(getContext(), invoiceListData, Common.PREVIOUSPAYMENTS);
invoiceList.setAdapter(adapter);
(rootView.findViewById(R.id.list_card)).setVisibility(View.VISIBLE);
} catch (JSONException e) {
e.printStackTrace();
}
}
};
Runnable postThreadFailed = new Runnable() {
@Override
public void run() {
Common.toastMessage(getContext(), R.string.failed_server);
}
};
common.AsynchronousThread(getContext(),
webService,
postData,
loadingIndicator,
dataColumns,
postThread,
postThreadFailed);
asyncTasks.add(common.asyncTask);
}
SearchView searchView;
}
public static class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
return 1;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 1:
return "Date wise";
}
return null;
}
}
}
//How to make display seperate list using adapter call when pressing spinner items.
//我的适配器类
public class CustomAdapter extends BaseAdapter {
private Context adapterContext;
public static LayoutInflater inflater=null;
private ArrayList<String[]> objects;
private String calledFrom;
private SimpleDateFormat formatted;
private Calendar cal;
CustomAdapter(Context context, ArrayList<String[]> objects, String calledFrom) {
initialization(context, objects, calledFrom);
}
void initialization(Context context, ArrayList<String[]> objects, String calledFrom){
adapterContext=context;
inflater = ( LayoutInflater )context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.objects=objects;
this.filteredObjects=objects;
this.calledFrom=calledFrom;
}
@Override
public int getCount() {
return filteredObjects.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
private class Holder {
TextView entryN,compN,payD,payM,payA,payT,appD;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
final int fPos=position;
switch (calledFrom) {
case Common.PREVIOUSPAYMENTS:
if (convertView == null) {
holder = new Holder();
convertView = inflater.inflate(R.layout.item_previous_approvals, null);
holder.entryN = (TextView) convertView.findViewById(R.id.entry_no);
holder.compN=(TextView)convertView.findViewById(R.id.company_name);
holder.payD=(TextView)convertView.findViewById(R.id.payment_date);
holder.payM=(TextView)convertView.findViewById(R.id.payment_mode);
holder.payA=(TextView)convertView.findViewById(R.id.payment_amount);
holder.payT=(TextView)convertView.findViewById(R.id.payment_type);
holder.appD=(TextView)convertView.findViewById(R.id.approval_date);
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
// holder.paidAmount.setText((filteredObjects.get(position)[6].equals("null")?"-":adapterContext.getResources().getString(R.string.paid_amount,filteredObjects.get(position)[6])));
holder.entryN.setText((filteredObjects.get(position)[1].equals("null")?"-":filteredObjects.get(position)[1]));
holder.compN.setText((filteredObjects.get(position)[2].equals("null")?"-":filteredObjects.get(position)[2]));
holder.payD.setText((filteredObjects.get(position)[3].equals("null")?"-":filteredObjects.get(position)[3]));
holder.payM.setText((filteredObjects.get(position)[4].equals("null")?"-":filteredObjects.get(position)[4]));
holder.payA.setText((filteredObjects.get(position)[5].equals("null")?"-":adapterContext.getResources().getString(R.string.paid_amount,filteredObjects.get(position)[5])));
holder.payT.setText((filteredObjects.get(position)[6].equals("null")?"-":filteredObjects.get(position)[6]));
holder.appD.setText((filteredObjects.get(position)[7].equals("null")?"-":adapterContext.getResources().getString(R.string.Ap_date,filteredObjects.get(position)[7])));
break;
}
return convertView;
}
private ItemFilter mFilter = new ItemFilter();
private ArrayList<String[]> filteredObjects;
private List<Integer> dataItemPosition;
Filter getFilter(List<Integer> dataItem) {
dataItemPosition=dataItem;
return mFilter;
}
private class ItemFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
int count = objects.size();
final ArrayList<String[]> filteredList = new ArrayList<String[]>(count);
for (int i = 0; i < count; i++) {
for(int j=0;j<dataItemPosition.size();j++) {
if (objects.get(i)[dataItemPosition.get(j)].toLowerCase().contains(filterString)) {
filteredList.add(objects.get(i));
break;//found at least one item
}
}
}
results.values = filteredList;
results.count = filteredList.size();
return results;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
filteredObjects = (ArrayList<String[]>) results.values;
notifyDataSetChanged();
}
}
}
1 个答案:
答案 0 :(得分：0)
试试这个： -
enterList<String> options = new ArrayList<String>();
options.add(ALL);
options.add(PAYMENTS);
options.add(EXPENSES);
String[] values = {"ALL", "PAYMENTS", "EXPENSE"};
final Spinner spinner = (Spinner) rootView.findViewById(R.id.spinner1);
ArrayAdapter dataAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item, options);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(dataAdapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
switch (spinner.getSelectedItem().toString()) {
case ALL:
invoiceList.setAdapter(aadapter);
break;
case PAYMENTS:
invoiceList.setAdapter(aadapter);
break;
case EXPENSES:
invoiceList.setAdapter(aadapter);
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
如需更多帮助，请参阅此链接： - https://developer.android.com/guide/topics/ui/controls/spinner.html
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