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以下のアクティビティでは、Switchでチェックアクションを実行するたびにリストをフィルタリングします（originallist）。更新RecyclerView.Adapterを取得する
スイッチをチェック/クリックする前にRecyclerViewリストをfragmentからフィルタリングする前に、アダプタが更新され、フラグメントトランザクション後にリストがフィルタリングされます。
しかし、私はスイッチをチェックすると、フィルタ操作は、フラグメントトランザクションの後に取得する必要があるフィルタリングされたリストではなく、元のリストで実行されます。
アクティビティで更新されたRecyclerView.Adapterを取得する方法。
public class TransactionsActivity extends AppCompatActivity implements ActivityCommunicator {
SearchView searchtrans;
SearchView searchView;
private RecyclerView recyclerView;
private Button monthButton, filterButton;
public static RecentTransAdapter mAdapter;
private Switch aSwitch;
boolean filtered;
public FragmentCommunicator fragmentCommunicator;
String dateSelected;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transactions);
/*
Slide slide = new Slide(Gravity.TOP);
slide.addTarget(R.id.trans);
getWindow().setEnterTransition(slide);
*/
searchtrans = (SearchView) findViewById(R.id.searchTrans);
searchtrans.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
mAdapter.getFilter().filter(query);
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
mAdapter.getFilter().filter(newText);
return true;
}
});
recyclerView = (RecyclerView) findViewById(R.id.trans);
List<Transaction> newList = new ArrayList<Transaction>();
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
newList = Transaction.transactionList;
monthButton = (Button) findViewById(R.id.monthButton);
// filterButton = (Button) findViewById(R.id.filterButton);
aSwitch = (Switch) findViewById(R.id.switch1);
String currentMonth = "";
Calendar cal = Calendar.getInstance();
/* Date date = new Date();
cal.setTime(date);
*/
currentMonth = new SimpleDateFormat("MMMM").format(cal.getTime());
monthButton.setText(currentMonth);
monthButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fm = getSupportFragmentManager();
// FragmentTransaction ft = fm.beginTransaction();
MyFrag dFragment = new MyFrag();
// Show DialogFragment
dFragment.show(fm, "Dialog Fragment");
// fragmentCommunicator.passDataToFragment(mAdapter);
}
});
mAdapter = new RecentTransAdapter(newList, this);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(mAdapter);
aSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Log.d("list is ",String.valueOf(mAdapter.getItemCount()));
if (!isChecked) {
Log.d("notchecked","yo");
mAdapter.getFilter().filter("");
} else {
mAdapter.getFilter().filter("credit");
}
recyclerView.setAdapter(mAdapter);
}
});
// RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
// recyclerView.setLayoutManager(mLayoutManager);
//recyclerView.setItemAnimator(new DefaultItemAnimator());
}
@Override
public void passDataToActivity(String someValue, RecentTransAdapter recentTransAdapter) {
dateSelected = someValue;
//dateSelected = "someTest";
monthButton.setText(dateSelected);
mAdapter = recentTransAdapter;
}
}
アダプタ：
public class RecentTransAdapter extends RecyclerView.Adapter<RecentTransAdapter.MyViewHolder> implements Filterable{
private LayoutInflater inflater;
List<Transaction> transactionList ;
List<Transaction> filteredTransList;
public RecentTransAdapter(List<Transaction> transactionList,Context context){
this.transactionList = transactionList;
filteredTransList = transactionList;
inflater = LayoutInflater.from(context);
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = inflater.inflate(R.layout.transaction, parent, false);
MyViewHolder myViewHolder = new MyViewHolder(itemView);
return myViewHolder;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Transaction transaction = filteredTransList.get(position);
holder.tamt.setText(transaction.amount);
if(transaction.type.toLowerCase().contains("credit"))
{
holder.tamt.setTextColor(Color.parseColor("#009f00"));
holder.tamt.setText("(+) "+transaction.amount);
}
else
{
holder.tamt.setTextColor(Color.parseColor("#9f0000"));
holder.tamt.setText("(-) "+transaction.amount);
}
Date date = null;
String formattedTime=null;
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
SimpleDateFormat output = new SimpleDateFormat("dd MMM yy");
Date d = sdf.parse(transaction.date);
formattedTime = output.format(d);
} catch (ParseException e) {
e.printStackTrace();
}
holder.tdate.setText(formattedTime.toString());
holder.tdesc.setText(transaction.desc);
if(holder.tdesc.getText().toString().contains("BOB E-Banking"))
{
//holder.imageView.setImageBitmap(getBitmapFromURL(""));
holder.imageView.setImageResource(R.drawable.bob);
}
else if(holder.tdesc.getText().toString().toLowerCase().contains("paytm"))
{
Glide.with(getApplicationContext())
.load("http://www.irctcstationcode.com/wp-content/uploads/2015/11/Paytm-Wallet.jpg")
.asBitmap()
.into(holder.imageView);
}
}
@Override
public int getItemCount() {
return filteredTransList.size();
}
@Override
public Filter getFilter() {
return new MyFilter(this,transactionList);
}
public void setList(List<Transaction> list) {
this.filteredTransList = list;
}
public class MyViewHolder extends RecyclerView.ViewHolder{
public TextView tdate , tdesc , tamt ;
public ImageView imageView ;
public MyViewHolder(View view) {
super(view);
imageView = (ImageView)view.findViewById(R.id.timg);
tdate = (TextView)view.findViewById(R.id.tdate);
tdesc = (TextView)view.findViewById(R.id.tdesc);
tamt = (TextView)view.findViewById(R.id.tamt);
}
}
フィルタ：
class MyFilter extends Filter {
private final RecentTransAdapter adapter;
private final List<Transaction> originalList;
private final List<Transaction> filteredList;
public MyFilter(RecentTransAdapter adapter, List<Transaction> originalList) {
super();
this.adapter = adapter;
this.originalList = originalList;
this.filteredList = new ArrayList<>();
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
filteredList.clear();
final FilterResults results = new FilterResults();
Log.d("constrianss iss", constraint.toString());
String constring = constraint.toString();
if (constraint.length() == 0) {
filteredList.addAll(originalList);
Log.d("filteredLen", String.valueOf(filteredList.size()));
} else if (constring.equals("credit")) {
final String filterPattern = constraint.toString().toLowerCase().trim();
for (final Transaction tr : originalList) {
if (filterPattern.equals("credit") && tr.type.toLowerCase().contains("credit")) {
Log.d("FilterSucc", tr.desc + " : " + tr.date);
filteredList.add(tr);
}
}
} else if (constraint.toString().trim().toLowerCase().matches("[a-z]{3}[-][0-9]{2}")) {
StringBuilder sb = new StringBuilder("");
sb.append("11-").append(constring);
for (final Transaction tr : originalList) {
Date date = null;
try {
date = new SimpleDateFormat("dd-MMM-yy").parse(sb.toString());
Log.d("dubug2", date.toString());
} catch (ParseException e) {
e.printStackTrace();
}
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int month = cal.get(Calendar.MONTH) + 1;
int year = cal.get(Calendar.YEAR);
String monthStr = null;
monthStr = String.valueOf(month);
if (String.valueOf(month).length() == 1) {
monthStr = "0" + month;
}
if (tr.date.trim().startsWith("" + year + "-" + monthStr)) {
filteredList.add(tr);
// TransactionsActivity.mAdapter.setList(filteredList);
}
}
} else {
for (final Transaction tr : originalList) {
if (tr.desc.toLowerCase().contains(constraint.toString())) {
filteredList.add(tr);
}
}
}
results.values = filteredList;
results.count = filteredList.size();
return results;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
// adapter.filteredTransList.clear();
adapter.setList(filteredList);
adapter.notifyDataSetChanged();
TransactionsActivity.mAdapter=adapter;
}
}
だけでなく、あなたのアダプタクラスを投稿 –
いや、私が更新しました – user3820753