#java #android-layout #listview
Вопрос:
Я хочу иметь возможность добавлять несколько значений в список, но правильно оформлять представление списка.
Например, прямо сейчас представление списка будет выглядеть следующим образом: namepostcodedate, что связано со следующим кодом ListArray.add(jobs.get(finalJ).customer.getName() job.getPostcode() job.getDate());
Способ, которым я в настоящее время добавляю значения в ListArray , не кажется идеальным, но я не уверен, есть ли другой способ сделать это и отобразить сформированный список?
Это мое list_item досье
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dip">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TableRow
android:id="@ id/rows2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/ddOrangeLight"
android:showDividers="middle">
<!-- android:divider="?android:attr/dividerHorizontal"-->
<TextView
android:id="@ id/customerNameView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginStart="4sp"
android:layout_marginTop="10dp"
android:layout_marginEnd="4sp"
android:layout_marginBottom="10dp"
android:gravity="center"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold" />
</TableRow>
</TableLayout>
</RelativeLayout>
Мой класс адаптера
public class SearchableAdapter extends BaseAdapter implements Filterable {
private List<String>originalData = null;
private List<String>filteredData = null;
private final LayoutInflater mInflater;
private final ItemFilter mFilter = new ItemFilter();
public SearchableAdapter(Context context, List<String> data) {
this.filteredData = data ;
this.originalData = data ;
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return filteredData.size();
}
public Object getItem(int position) {
return filteredData.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
// A ViewHolder keeps references to children views to avoid unnecessary calls
// to findViewById() on each row.
ViewHolder holder;
// When convertView is not null, we can reuse it directly, there is no need
// to reinflate it. We only inflate a new View when the convertView supplied
// by ListView is null.
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_item, null);
// Creates a ViewHolder and store references to the two children views
// we want to bind data to.
holder = new ViewHolder();
holder.uName = (TextView) convertView.findViewById(R.id.customerNameView);
// holder.uPostCode = (TextView) convertView.findViewById(R.id.postCode);
// holder.UDateTime = (TextView) convertView.findViewById(R.id.dateTimeView);
// Bind the data efficiently with the holder.
convertView.setTag(holder);
} else {
// Get the ViewHolder back to get fast access to the TextView
// and the ImageView.
holder = (ViewHolder) convertView.getTag();
}
// If weren't re-ordering this you could rely on what you set last time
// holder.text.setText(filteredData.get(position));
holder.uName.setText(filteredData.get(position));
// holder.uPostCode.setText(filteredData.get(position));
// holder.UDateTime.setText(filteredData.get(position));
return convertView;
}
static class ViewHolder {
TextView uName;
// TextView uPostCode;
// TextView UDateTime;
}
public Filter getFilter() {
return mFilter;
}
private class ItemFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
final List<String> list = originalData;
int count = list.size();
final ArrayList<String> nlist = new ArrayList<String>(count);
String filterableString ;
for (int i = 0; i < count; i ) {
filterableString = list.get(i);
if (filterableString.toLowerCase().contains(filterString)) {
nlist.add(filterableString);
}
}
results.values = nlist;
results.count = nlist.size();
return results;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
filteredData = (ArrayList<String>) results.values;
notifyDataSetChanged();
}
}
}
Fragment class
public class CompletedJobsFragment extends Fragment {
AppActivity a;
String search;
TableLayout tableLayout;
Vehicle vehicle;
ListView listView;
SearchableAdapter arrayAdapter;
EditText searchInput;
List<String> ListArray = new ArrayList<String>();
ArrayList<ListItem> results = new ArrayList<>();
ListItem repairDetails = new ListItem();
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v= inflater.inflate(R.layout.fragment_completed_jobs,container,false);
a = (AppActivity) getActivity();
assert a != null;
tableLayout = (TableLayout) v.findViewById(R.id.completedJobsTable);
Button clear = v.findViewById(R.id.btnClearTextCarReg);
searchInput = v.findViewById(R.id.txtEditSearchCarReg);
listView = v.findViewById(R.id.list__View);
search = searchInput.getText().toString().trim();
clear.setOnClickListener(av -> searchInput.setText(""));
// Button searchButton = v.findViewById(R.id.btnSearchVehicleReg);
arrayAdapter = new SearchableAdapter(getContext(),ListArray);
listView.setAdapter(arrayAdapter);
listView.setClickable(true);
searchInput.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
arrayAdapter.getFilter().filter(s);
}
@Override
public void afterTextChanged(Editable s) {
}
});
JobRepository jobRepository = new JobRepository(a.getApplication());
VehicleRepository vehicleRepository = new VehicleRepository(a.getApplication());
jobRepository.findCompleted().observe(getViewLifecycleOwner(), jobs -> {
for (int j = 0; j < jobs.size(); j ) {
if (jobs.get(j).job == null) {
continue;
}
int finalJ = j;
vehicleRepository.findByJob(jobs.get(j).job.getUuid()).observe(getViewLifecycleOwner(), vehicles -> {
for (int vh = 0; vh < vehicles.size(); vh ) {
if (vehicles.get(vh).vehicle == null) {
continue;
}
vehicle = vehicles.get(vh).vehicle;
Job job = jobs.get(finalJ).job;
ListArray.add(jobs.get(finalJ).customer.getName() job.getPostcode() job.getDate());
View viewToAdd = arrayAdapter.getView(finalJ, null, null);
TableRow[] tableRows = new TableRow[jobs.size()];
tableRows[finalJ] = new TableRow(a);
tableRows[finalJ].setId(finalJ 1);
tableRows[finalJ].setPadding(0, 20, 0, 20);
tableRows[finalJ].setBackgroundResource(android.R.drawable.list_selector_background);
tableRows[finalJ].setBackgroundResource(R.drawable.table_outline);
tableRows[finalJ].setLayoutParams(new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.WRAP_CONTENT
));
tableRows[finalJ].addView(viewToAdd);
tableLayout.addView(tableRows[finalJ], new TableLayout.LayoutParams(
TableLayout.LayoutParams.MATCH_PARENT,
TableLayout.LayoutParams.WRAP_CONTENT
));
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// When clicked, show a toast with the TextView text or do whatever you need.
// Toast.makeText(getContext(), "asd", Toast.LENGTH_SHORT).show();
Bundle bundle = new Bundle();
bundle.putString(JOB_ID, job.getUuid().toString());
bundle.putString(CUSTOMER_NAME, jobs.get(finalJ).customer.getName());
// bundle.putString(JOB_DATE, sdf.format(job.getDate()));
Fragment fragment = new ViewCustomerInformationFragment();
fragment.setArguments(bundle);
FragmentTransaction transaction = requireActivity().getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment_container, fragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
}
});
}
});
}
});
return v;
}
Fragment xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@ id/imageViewBGhm"
android:scaleType="center"
android:orientation="vertical"
android:background="@color/white">
<TextView
android:id="@ id/txtTitle2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="20dp"
android:layout_marginTop="80dp"
android:layout_marginEnd="180dp"
android:text="@string/completed_jobs"
android:textColor="@color/ddGrey"
android:textSize="28sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.375"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<EditText
android:id="@ id/txtEditSearchCarReg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@ id/txtTitle2"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="16dp"
android:layout_marginTop="4dp"
android:layout_marginEnd="16dp"
android:ems="12"
android:inputType="textPersonName"
android:paddingStart="5dp"
android:paddingEnd="10dp"
android:paddingBottom="22dp"
android:textAlignment="textStart"
android:textSize="18sp" />
<TableRow
android:id="@ id/tableTitleRow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@ id/txtEditSearchCarReg"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="20dp"
android:layout_marginTop="6dp"
android:layout_marginEnd="20dp"
android:layout_marginBottom="6dp"
android:background="@color/lightGrey"
android:divider="?android:attr/dividerHorizontal"
android:showDividers="middle"
android:visibility="visible">
<TextView
android:id="@ id/txtCustomerNameTitle"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginStart="4sp"
android:layout_marginTop="10dp"
android:layout_marginEnd="4sp"
android:layout_marginBottom="10dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/customer_name_hc"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="@ id/txtPostcodeTitle"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/postcode_placeholder"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="@ id/txtDateTitle"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/date"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="@ id/txtTimeTitle"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:layout_marginEnd="20sp"
android:layout_marginBottom="10dp"
android:layout_weight="1"
android:gravity="center"
android:text="@string/enquiry_vat_value"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold" />
</TableRow>
<ListView
android:id="@ id/list__View"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_below="@id/tableTitleRow"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="20dp"
android:layout_marginEnd="20dp"
android:visibility="visible" />
<TableLayout
android:id="@ id/completedJobsTable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@ id/txtEditSearchCarReg"
android:layout_marginStart="2dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="2dp"
android:layout_marginBottom="2dp"
android:stretchColumns="0,1,2"
android:visibility="gone">
</TableLayout>
<Button
android:id="@ id/btnClearTextCarReg"
android:layout_width="22dp"
android:layout_height="22dp"
android:layout_alignTop="@ id/txtEditSearchCarReg"
android:layout_alignParentEnd="true"
android:layout_marginStart="175dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="20dp"
android:background="@drawable/ic_outline_cancel_24"
android:backgroundTint="@color/ddOrange"
android:clickable="true"
android:focusable="true"
android:foreground="?android:attr/selectableItemBackground" />
<Button
android:id="@ id/btnSearchVehicleReg"
style="@style/DDButtons"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_below="@ id/txtEditSearchCarReg"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="20dp"
android:layout_marginBottom="14dp"
android:background="@drawable/custom_buttons"
android:drawableStart="@drawable/ic_outline_search_24"
android:drawablePadding="12dp"
android:letterSpacing="0.2"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:singleLine="true"
android:text="@string/search_postcode"
android:textAlignment="textStart"
android:textSize="18sp"
android:textStyle="bold"
android:visibility="gone"/>
</RelativeLayout>