我正在处理一个搜索页面的活动。它包含一些带有edittext和spinner的值。在给出值并单击搜索按钮后，它将移动到选项卡片段，其中包含搜索结果除以三个选项卡（按日期，按价格，按城市）。我刚刚测试了日期，但它没有显示。请帮帮我。
搜索页面：
public class Search extends AppCompatActivity {
EditText name,to,from;
Spinner cscope,strainer,sinstitute,scity,scountry,cstype,sgender,sdisable,sprice;
String[] able={"Yes","No"};
String[] sex={"Male only","Female only","Both Male and Female"};
String[] price={"Free","1900S.R","1500S.R"};
String[] city={"Riyadh"};
Button search;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
name= (EditText) findViewById(R.id.search_csname);
cscope= (Spinner) findViewById(R.id.search_scope);
strainer= (Spinner) findViewById(R.id.search_trainerName);
sinstitute= (Spinner) findViewById(R.id.search_instName);
scity= (Spinner) findViewById(R.id.search_city);
scountry= (Spinner) findViewById(R.id.search_country);
cstype= (Spinner) findViewById(R.id.search_ctype);
sgender= (Spinner) findViewById(R.id.search_gender);
sdisable= (Spinner) findViewById(R.id.search_disabled);
sprice= (Spinner) findViewById(R.id.search_price);
search= (Button) findViewById(R.id.searchNow);
ArrayAdapter<String> gen=new ArrayAdapter<String>(Search.this,android.R.layout.simple_spinner_item,sex);
gen.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sgender.setAdapter(gen);
ArrayAdapter<String> disableness=new ArrayAdapter<String>(Search.this,android.R.layout.simple_spinner_item,able);
disableness.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sdisable.setAdapter(disableness);
ArrayAdapter<String> pricess=new ArrayAdapter<String>(Search.this,android.R.layout.simple_spinner_item,price);
pricess.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sprice.setAdapter(pricess);
ArrayAdapter<String> cities=new ArrayAdapter<String>(Search.this,android.R.layout.simple_spinner_item,city); cities.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
scity.setAdapter(cities);
search.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String sname=name.getText().toString();
final String seprice=sprice.getSelectedItem().toString();
final String secity=scity.getSelectedItem().toString();
final String sedate=from.getText().toString();
Intent s=new Intent(getApplicationContext(),SearchResults.class);
s.putExtra("csname",sname);
s.putExtra("csprice",seprice);
s.putExtra("cscity",secity);
s.putExtra("csdate",sedate);
startActivity(s);
}
});
}
public void selectToDate(View view){
DialogFragment tofrag=new SelectTodateFragment();
tofrag.show(getSupportFragmentManager(),"Date Picker");
}
public void poptoDate(int date,int month,int year){
to= (EditText) findViewById(R.id.search_to);
assert to != null;
to.setText(date+"/"+month+"/"+year);
}
@SuppressLint("ValidFragment")
public class SelectTodateFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
public Dialog onCreateDialog(Bundle savedInstanceState){
final Calendar tocal=Calendar.getInstance();
int yy=tocal.get(Calendar.YEAR);
int mm=tocal.get(Calendar.MONTH);
int dd=tocal.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, yy, mm, dd);
}
@Override
public void onDateSet(DatePicker view, int year, int mm, int dd) {
poptoDate(year, mm+1, dd);
}
}
public void selectFromDate(View view){
DialogFragment newfrag=new SelectFromdateFragment();
newfrag.show(getSupportFragmentManager(),"Date Picker");
}
public void popDate(int date,int month,int year){
from= (EditText) findViewById(R.id.search_from);
assert from != null;
from.setText(date+"/"+month+"/"+year);
}
@SuppressLint("ValidFragment")
public class SelectFromdateFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
public Dialog onCreateDialog(Bundle savedInstanceState){
final Calendar calendar = Calendar.getInstance();
int yy = calendar.get(Calendar.YEAR);
int mm = calendar.get(Calendar.MONTH);
int dd = calendar.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), this, yy, mm, dd);
}
@Override
public void onDateSet(DatePicker view, int year, int mm, int dd) {
popDate(year, mm+1, dd);
}
}
}
搜索结果页面：
public class SearchResults extends AppCompatActivity implements TabLayout.OnTabSelectedListener {
private TabLayout tabs;
private ViewPager viewPager;
Bundle bundle=new Bundle();
private SearchPager pager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search_results);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
tabs = (TabLayout) findViewById(R.id.search_tabLayout);
viewPager = (ViewPager) findViewById(R.id.search_pager);
tabs.addTab(tabs.newTab().setText("By Price"));
tabs.addTab(tabs.newTab().setText("By Date"));
tabs.addTab(tabs.newTab().setText("By City"));
tabs.setTabGravity(tabs.GRAVITY_FILL);
tabs.setHorizontalScrollBarEnabled(false);
pager = new SearchPager(getSupportFragmentManager(), tabs.getTabCount());
viewPager.setAdapter(pager);
Intent h=getIntent();
String cname=h.getStringExtra("csname");
String byprice=h.getStringExtra("csprice");
String bydate=h.getStringExtra("csdate");
String bycity=h.getStringExtra("cscity");
bundle.putString("coname",cname);
bundle.putString("coprice",byprice);
bundle.putString("codate",bydate);
bundle.putString("cocity",bycity);
pager.getData(bundle);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabs));
tabs.setOnTabSelectedListener(this);
}
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
}
搜索pagerAdapter：
public class SearchPager extends FragmentStatePagerAdapter {
int tabCount;
private Bundle args=new Bundle();
public SearchPager(FragmentManager fm, int tabCount) {
super(fm);
this.tabCount = tabCount;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
Fragment tab1 = new SearchPrice();
getData(args);
tab1.setArguments(args);
return tab1;
case 1:
Fragment tab2 = new SearchDate();
getData(args);
tab2.setArguments(args);
return tab2;
case 2:
Fragment tab3 = new SearchCity();
getData(args);
tab3.setArguments(args);
return tab3;
default:
return null;
}
}
@Override
public int getCount() {
return tabCount;
}
public void getData(Bundle bundle) {
this.args=bundle;
}
}
搜索BYPrice：
public class SearchPrice extends Fragment {
private ListView listView;
private ProgressDialog mprogress;
ArrayList<HashMap<String, String>> alist = new ArrayList<>();
private SpriceAdapter adapter;
TextView id;
Handler mHandler;
static String sname;
static String sprice;
public SearchPrice() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView = inflater.inflate(R.layout.fragment_search_price, container, false);
mHandler = new Handler();
id = (TextView) rootView.findViewById(R.id.copriceId);
listView = (ListView) rootView.findViewById(R.id.searchPriceList);
adapter = new SpriceAdapter(getActivity(), alist);
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();
listView.setScrollingCacheEnabled(false);
if (getArguments() != null) {
sname = this.getArguments().getString("coname");
sprice = this.getArguments().getString("coprice");
}
final String turl = "http://adoxsolutions.in/numuww/services/courses";
new ByPrice(this).execute(turl);
return rootView;
}
private class ByPrice extends AsyncTask<String, Void, Void> {
private ProgressDialog dialog;
public ByPrice(SearchPrice activity) {
dialog = new ProgressDialog(activity.getContext());
}
@Override
protected void onPreExecute() {
dialog.setMessage("Loading Data...");
dialog.show();
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
if (dialog.isShowing()) {
dialog.dismiss();
}
}
protected Void doInBackground(String... turl) {
try {
URL url = new URL(turl[0]);
HttpURLConnection connect = (HttpURLConnection) url.openConnection();
connect.setRequestMethod("POST");
System.out.println("Response Code:" + connect.getResponseCode());
InputStream in = new BufferedInputStream(connect.getInputStream());
String response = org.apache.commons.io.IOUtils.toString(in, "UTF-8");
System.out.println(response);
Log.d("VALUE:", response);
JSONObject obj = new JSONObject(response);
JSONArray jsArray = obj.optJSONArray("Course");
for (int k = 0; k < jsArray.length(); k++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject jobj = jsArray.getJSONObject(k);
final String cid = jobj.getString("id");
final String cn = jobj.getString("course");
final String dt = jobj.getString("date");
map.put("id", cid);
map.put("course", cn);
map.put("date", dt);
map.put("trainer", jobj.getString("trainer"));
map.put("country", jobj.getString("country"));
map.put("city", jobj.getString("city"));
map.put("days", jobj.getString("no_days"));
map.put("hours", jobj.getString("tot_hrs"));
map.put("img", jobj.getString("img"));
alist.add(map);
mHandler.post(new Runnable() {
@Override
public void run() {
if (cn.equals(sname) || dt.equals(sprice)) {
Log.d("Value", cid);
id.setText(cid);
listView.setAdapter(adapter);
}
}
});
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
class SpriceAdapter extends BaseAdapter {
private Context context;
private ArrayList<HashMap<String, String>> MyArr = new ArrayList<HashMap<String, String>>();
private Typeface typeface;
public SpriceAdapter(Context c, ArrayList<HashMap<String, String>> list) {
context = c;
MyArr = list;
}
@Override
public int getCount() {
return MyArr.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final String id = MyArr.get(position).get("id");
if (convertView != null) {
convertView = inflater.inflate(R.layout.searchlist, parent, false);
TextView cname = (TextView) convertView.findViewById(R.id.searchlistName);
TextView tname = (TextView) convertView.findViewById(R.id.strainerName);
TextView country = (TextView) convertView.findViewById(R.id.searchcoName);
TextView city = (TextView) convertView.findViewById(R.id.searchciName);
TextView date = (TextView) convertView.findViewById(R.id.sdateTime);
TextView time = (TextView) convertView.findViewById(R.id.scourseTime);
TextView hours = (TextView) convertView.findViewById(R.id.scourseHours);
ImageView image = (ImageView) convertView.findViewById(R.id.scphoto);
String cn = (MyArr.get(position).get("course"));
String tn = (MyArr.get(position).get("trainer"));
String co = (MyArr.get(position).get("country"));
String ci = (MyArr.get(position).get("city"));
String dat = (MyArr.get(position).get("date"));
String dys = (MyArr.get(position).get("days"));
String hrs = (MyArr.get(position).get("hours"));
String c = context.getString(R.string.comma);
String ob = " ( ";
String cb = " ) ";
String h = " Hours";
String d = " Days";
String trainerName = tn + c;
String cdays = dys + d;
String chrs = ob + hrs + h + cb;
try {
if(hrs != null || !hrs.equals("")) {
String h1="0 Hours";
String chs=ob + h1 + cb;
hours.setText(chs);
}else{
hours.setText(chrs);
}
// image.setImageBitmap(loadBitmap(hlist.get(position).get("img")));
Glide.with(context).load(MyArr.get(position).get("img")).into(image);
cname.setText(cn);
tname.setText(trainerName);
country.setText(co);
city.setText(ci);
date.setText(dat);
time.setText(cdays);
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent o=new Intent(context,CourseScreen.class);
o.putExtra("id",id);
context.startActivity(o);
}
});
} catch(Exception e){
e.printStackTrace();
}
}
return convertView;
}
}
}
搜索日期：
public class SearchDate extends Fragment {
private ListView listView;
private ProgressDialog mprogress;
TextView id;
ArrayList<HashMap<String, String>> alist = new ArrayList<>();
private SdateAdapter adapter;
Handler mHandler;
static String sname;
static String sdate;
public SearchDate() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView = inflater.inflate(R.layout.fragment_search_date, container, false);
mHandler = new Handler();
id= (TextView) rootView.findViewById(R.id.courseId);
listView= (ListView) rootView.findViewById(R.id.searchDateList);
adapter = new SdateAdapter(getActivity(), alist);
listView.setAdapter(adapter);
listView.setScrollingCacheEnabled(false);
adapter.notifyDataSetChanged();
if (getArguments() != null) {
sname = this.getArguments().getString("coname");
sdate = this.getArguments().getString("codate");
}
final String turl = "http://adoxsolutions.in/numuww/services/courses";
new ByDate(this).execute(turl);
return rootView;
}
private class ByDate extends AsyncTask<String, Void, Void> {
private ProgressDialog dialog;
public ByDate(SearchDate activity)
{
dialog = new ProgressDialog(activity.getContext());
}
@Override
protected void onPreExecute() {
dialog.setMessage("Loading Data...");
dialog.show();
}
protected Void doInBackground(String... turl) {
try {
URL url = new URL(turl[0]);
HttpURLConnection connect = (HttpURLConnection) url.openConnection();
connect.setRequestMethod("POST");
System.out.println("Response Code:" + connect.getResponseCode());
InputStream in = new BufferedInputStream(connect.getInputStream());
String response = org.apache.commons.io.IOUtils.toString(in, "UTF-8");
System.out.println(response);
Log.d("VALUE:", response);
JSONObject obj = new JSONObject(response);
JSONArray jsArray = obj.optJSONArray("Course");
for (int k = 0; k < jsArray.length(); k++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject jobj = jsArray.getJSONObject(k);
final String cid=jobj.getString("id");
final String cn=jobj.getString("course");
final String dt=jobj.getString("date");
map.put("id",cid);
map.put("course",cn);
map.put("date", dt);
map.put("trainer", jobj.getString("trainer"));
map.put("country", jobj.getString("country"));
map.put("city", jobj.getString("city"));
map.put("days", jobj.getString("no_days"));
map.put("hours", jobj.getString("tot_hrs"));
map.put("img", jobj.getString("img"));
alist.add(map);
mHandler.post(new Runnable() {
@Override
public void run() {
if(cn.equals(sname) || dt.equals(sdate) ) {
Log.d("Value",cid);
id.setText(cid);
}
}
});
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
if (dialog.isShowing()) {
dialog.dismiss();
}
}
}
class SdateAdapter extends BaseAdapter {
private Context context;
private ArrayList<HashMap<String, String>> MyArr = new ArrayList<HashMap<String, String>>();
private Typeface typeface;
public SdateAdapter(Context c, ArrayList<HashMap<String, String>> list) {
context = c;
MyArr = list;
}
@Override
public int getCount() {
return MyArr.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final String id = MyArr.get(position).get("id");
final String dt=MyArr.get(position).get("date");
if (convertView != null) {
convertView = inflater.inflate(R.layout.searchlist, parent, false);
TextView cname = (TextView) convertView.findViewById(R.id.searchlistName);
TextView tname = (TextView) convertView.findViewById(R.id.strainerName);
TextView country = (TextView) convertView.findViewById(R.id.searchcoName);
TextView city = (TextView) convertView.findViewById(R.id.searchciName);
TextView date = (TextView) convertView.findViewById(R.id.sdateTime);
TextView time = (TextView) convertView.findViewById(R.id.scourseTime);
TextView hours = (TextView) convertView.findViewById(R.id.scourseHours);
ImageView image = (ImageView) convertView.findViewById(R.id.scphoto);
String cn = (MyArr.get(position).get("course"));
String tn = (MyArr.get(position).get("trainer"));
String co = (MyArr.get(position).get("country"));
String ci = (MyArr.get(position).get("city"));
String dat = (MyArr.get(position).get("date"));
String dys = (MyArr.get(position).get("days"));
String hrs = (MyArr.get(position).get("hours"));
String c = context.getString(R.string.comma);
String ob = " ( ";
String cb = " ) ";
String h = " Hours";
String d = " Days";
String trainerName = tn + c;
String cdays = dys + d;
String chrs = ob + hrs + h + cb;
try {
if(hrs != null || !hrs.equals("")) {
String h1="0 Hours";
String chs=ob + h1 + cb;
hours.setText(chs);
}else{
hours.setText(chrs);
}
// image.setImageBitmap(loadBitmap(hlist.get(position).get("img")));
Glide.with(context).load(MyArr.get(position).get("img")).into(image);
cname.setText(cn);
tname.setText(trainerName);
country.setText(co);
city.setText(ci);
date.setText(dat);
time.setText(cdays);
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent o=new Intent(context,CourseScreen.class);
o.putExtra("id",id);
context.startActivity(o);
}
});
} catch(Exception e){
e.printStackTrace();
}
}
return convertView;
}
}
}
与Search ByCity相同：