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Ich habe ListView verwendet, um den Namen, die Beschreibung und die Abteilung einer Firma anzuzeigen, die gut funktioniert.aber ich möchte einen bestimmten Artikel, der Beschreibung und Abteilung aus der Listenansicht und ist Übergeben Sie es an zwei verschiedene Fragmente, die in einem Viewpager angezeigt werden. Aber ich weiß nicht, wie man nur die Beschreibung auswählt und sie an das entsprechende Fragment und den Warengruppenartikel an das Warengruppenfragment weitergibt.So wählen Sie einen bestimmten Artikel aus einer benutzerdefinierten Listenansicht
Class-Datei zeigt Listenansicht:
public class CompanyAct extends AppCompatActivity{
private static final String TAG = MainActivity.class.getSimpleName();
private static final String url = "https://api.myjson.com/bins/2ggcs";
private ProgressDialog pDialog;
private List<Company> companydetails = new ArrayList<Company>();
private ListView listView;
private CustomListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.companyprimarydetails);
listView = (ListView) findViewById(R.id.companylist);
adapter = new CustomListAdapter(this, companydetails);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
JsonArrayRequest movieReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Company company=new Company();
// Company company = new Company(obj.getInt("companyID"),obj.getString("comapnyName"),obj.getString("companyOwner"),obj.getString("companyStartDate"),obj.getString("companyDescription"),departments);
company.setCompanyid(obj.getInt("companyID"));
company.setCompanyname(obj.getString("comapnyName"));
company.setCompanyowner(obj.getString("companyOwner"));
company.setStartdate(obj.getString("companyStartDate"));
company.setDescription(obj.getString("companyDescription"));
company.setDepartments(obj.getString("companyDepartments"));
companydetails.add(company);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
AppController.getInstance().addToRequestQueue(movieReq);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
}
});
}
@Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
CustomAdapter:
public class CustomListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<Company> companyItems;
Company m;
Context context;
public CustomListAdapter(Activity activity, List<Company> companyItems) {
this.activity = activity;
this.companyItems = companyItems;
}
@Override
public int getCount() {
return companyItems.size();
}
@Override
public Object getItem(int location) {
return companyItems.get(location);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.companyprimaryitems, null);
TextView companyid=(TextView)convertView.findViewById(R.id.companyid);
TextView companyname = (TextView) convertView.findViewById(R.id.companyname);
TextView companyowner = (TextView) convertView.findViewById(R.id.companyowner);
TextView companystartdate = (TextView) convertView.findViewById(R.id.comapnystartdate);
TextView comapnydesc = (TextView) convertView.findViewById(R.id.companydesc);
TextView companylists=(TextView)convertView.findViewById(R.id.comapanylists);
m = companyItems.get(position);
companyid.setText(String.valueOf(m.getCompanyid()));
companyname.setText(m.getCompanyname());
companyowner.setText(m.getCompanyowner());
companystartdate.setText(m.getStartdate());
comapnydesc.setText(m.getDescription());
//rating.setText("Rating: " + String.valueOf(m.getRating()));
/* String departments = "";
for (String str : m.getDepartments()) {
departments += str + ", ";
}
departments = departments.length() > 0 ? departments.substring(0,
departments.length() - 2) : departments; */
companylists.setText(m.getDepartments());
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
m=companyItems.get(position);
String des=m.getDescription()+"#"+m.getDepartments();
Intent i=new Intent(context,DetailsActivity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putString("key", des);
i.putExtras(bundle);
context.startActivity(i);
// DescriptionFragment fragobj = new DescriptionFragment();
// fragobj.setArguments(bundle);
// Intent intent = new Intent(context, DetailsActivity.class);
// intent.putExtra("description", m.getDescription());
// intent.putExtra("department", m.getDepartments());
// context.startActivity(intent);
}
});
// release year
return convertView;
}
FragmentActivity:
public class DetailsActivity extends FragmentActivity {
ViewPager pager;
ViewPagerAdapter adapter;
SlidingTabLayout tabs;
String receivingdata;
CharSequence Titles[]={"Description","Departments"};
int Numboftabs =2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.slidingpanel);
adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles, Numboftabs);
pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
tabs = (SlidingTabLayout) findViewById(R.id.tabs);
tabs.setDistributeEvenly(true);
tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
@Override
public int getIndicatorColor(int position) {
return getResources().getColor(R.color.tabsScrollColor);
}
});
tabs.setViewPager(pager);
}
}
DescriptionFragment:
public class DescriptionFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.description_frag, container, false);
// String strtext = getArguments().getString("edttext");
TextView desc=(TextView)v.findViewById(R.id.tvdescription);
return super.onCreateView(inflater, container, savedInstanceState);
}
public static DescriptionFragment newInstance(String text) {
DescriptionFragment f = new DescriptionFragment();
Bundle b = new Bundle();
b.putString("msg", text);
f.setArguments(b);
return f;
}
}
Abteilung Fragment:
public class DepartmentsFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.description_frag, container, false);
TextView dept=(TextView)v.findViewById(R.id.tvdepartments);
return super.onCreateView(inflater, container, savedInstanceState);
}
public static DepartmentsFragment newInstance(String text) {
DepartmentsFragment f = new DepartmentsFragment();
Bundle b = new Bundle();
b.putString("msg", text);
f.setArguments(b);
return f;
}
Ich habe sogar versucht, die Werte von customadapter zum fragmentactivity passieren, aber es hat nicht funktioniert Null-Zeiger zeigt exception.I möchte zu wissen, wie um ein bestimmtes Element aus der Liste auszuwählen und an zwei verschiedene Fragmente zu übergeben.
Get onClick Methode auf Ihre Textansicht in getview Adapter und übergeben Sie Ihre Daten mithilfe von Fragment mit setArguments(). Und holen Sie diese Daten in einem anderen Fragment mit getArguments(). –
Wenn Sie Fragen zu StackOverflow stellen, machen Sie bitte einen [mcve], danke. –