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| 1 | +package io.agora.api.example.common.adapter; |
| 2 | + |
| 3 | +import android.view.LayoutInflater; |
| 4 | +import android.view.View; |
| 5 | +import android.view.ViewGroup; |
| 6 | +import android.widget.TextView; |
| 7 | + |
| 8 | +import androidx.annotation.NonNull; |
| 9 | +import androidx.recyclerview.widget.RecyclerView; |
| 10 | + |
| 11 | +import java.util.ArrayList; |
| 12 | +import java.util.List; |
| 13 | + |
| 14 | +import io.agora.api.example.MainFragment; |
| 15 | +import io.agora.api.example.R; |
| 16 | +import io.agora.api.example.annotation.Example; |
| 17 | + |
| 18 | +/** |
| 19 | + * Adapter for multiple sections with headers and items |
| 20 | + */ |
| 21 | +public class SectionAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { |
| 22 | + private static final int TYPE_HEADER = 0; |
| 23 | + private static final int TYPE_ITEM = 1; |
| 24 | + |
| 25 | + private final List<Object> items = new ArrayList<>(); |
| 26 | + private final MainFragment.OnListFragmentInteractionListener listener; |
| 27 | + |
| 28 | + public SectionAdapter(MainFragment.OnListFragmentInteractionListener listener) { |
| 29 | + this.listener = listener; |
| 30 | + } |
| 31 | + |
| 32 | + public void addSection(String title, List<Example> sectionItems) { |
| 33 | + items.add(title); |
| 34 | + if (sectionItems != null) { |
| 35 | + items.addAll(sectionItems); |
| 36 | + } |
| 37 | + } |
| 38 | + |
| 39 | + @Override |
| 40 | + public int getItemViewType(int position) { |
| 41 | + return items.get(position) instanceof String ? TYPE_HEADER : TYPE_ITEM; |
| 42 | + } |
| 43 | + |
| 44 | + @NonNull |
| 45 | + @Override |
| 46 | + public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { |
| 47 | + if (viewType == TYPE_HEADER) { |
| 48 | + View view = LayoutInflater.from(parent.getContext()) |
| 49 | + .inflate(R.layout.layout_main_list_section, parent, false); |
| 50 | + return new HeaderViewHolder(view); |
| 51 | + } else { |
| 52 | + View view = LayoutInflater.from(parent.getContext()) |
| 53 | + .inflate(R.layout.layout_main_list_item, parent, false); |
| 54 | + return new ItemViewHolder(view); |
| 55 | + } |
| 56 | + } |
| 57 | + |
| 58 | + @Override |
| 59 | + public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) { |
| 60 | + if (holder instanceof HeaderViewHolder) { |
| 61 | + ((HeaderViewHolder) holder).bind((String) items.get(position)); |
| 62 | + } else if (holder instanceof ItemViewHolder) { |
| 63 | + ((ItemViewHolder) holder).bind((Example) items.get(position), listener); |
| 64 | + } |
| 65 | + } |
| 66 | + |
| 67 | + @Override |
| 68 | + public int getItemCount() { |
| 69 | + return items.size(); |
| 70 | + } |
| 71 | + |
| 72 | + static class HeaderViewHolder extends RecyclerView.ViewHolder { |
| 73 | + final TextView nameView; |
| 74 | + |
| 75 | + HeaderViewHolder(View view) { |
| 76 | + super(view); |
| 77 | + nameView = view.findViewById(R.id.item_name); |
| 78 | + } |
| 79 | + |
| 80 | + void bind(String title) { |
| 81 | + nameView.setText(title); |
| 82 | + } |
| 83 | + } |
| 84 | + |
| 85 | + static class ItemViewHolder extends RecyclerView.ViewHolder { |
| 86 | + final View view; |
| 87 | + final TextView nameView; |
| 88 | + |
| 89 | + ItemViewHolder(View itemView) { |
| 90 | + super(itemView); |
| 91 | + view = itemView; |
| 92 | + nameView = itemView.findViewById(R.id.item_name); |
| 93 | + } |
| 94 | + |
| 95 | + void bind(Example item, MainFragment.OnListFragmentInteractionListener listener) { |
| 96 | + nameView.setText(view.getContext().getString(item.name())); |
| 97 | + view.setOnClickListener(v -> { |
| 98 | + if (listener != null) { |
| 99 | + listener.onListFragmentInteraction(item); |
| 100 | + } |
| 101 | + }); |
| 102 | + } |
| 103 | + } |
| 104 | +} |
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