Live
Interactive Barrage

Overview
Interactive Bullet-screen feature supports the following functions: sending barrage messages, inserting custom messages, and custom message styles. Interactive Bullet-screen messages support emoji input, adding fun to the messages and making the interaction more enjoyable.
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Display barrage
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Send barrage
Note：
Support switching between system keyboard and emoji keyboard.
Integration
The barrage component mainly provides two Objects：
TUIBarrageButton：Clicking it can bring up the input interface.
TUIBarrageDisplayView：Used for displaying barrage messages.
In scenarios where barrage messages need to be sent, create a TUIBarrageButton , which can bring up the input interface when clicked:
TUIBarrageButton barrageButton = new TUIBarrageButton(mContext, roomId);
mBarrageButtonContainer.addView(barrageButton);
In scenarios where barrage messages need to be displayed, use TUIBarrageDisplayView to show the barrage messages:
TUIBarrageDisplayView barrageDisplayView = new TUIBarrageDisplayView(mContext, roomId);
mLayoutBarrageContainer.addView(barrageDisplayView);
Customize message style
The barrage display component TUIBarrageDisplayView provides setAdapter and TUIBarrageDisplayAdapter for customizing the pop-up message Item style:
public interface TUIBarrageDisplayAdapter {
    RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType);

    void onBindViewHolder(RecyclerView.ViewHolder holder, TUIBarrage barrage);

    int getItemViewType(int position, TUIBarrage barrage);
}
public class GiftBarrageAdapter implements TUIBarrageDisplayAdapter {
    private final Context       mContext;

    public GiftBarrageAdapter(Context context) {
        mContext = context;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == GIFT_VIEW_TYPE_1) {
            // Handling of custom style 1
            LinearLayout ll = new LinearLayout(mContext);
            ll.addView(new TextView(mContext));
            return new GiftViewHolder(ll);
        }
        return null;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, TUIBarrage barrage) {
        if (holder instanceof GiftViewHolder) {
            GiftViewHolder viewHolder = (GiftViewHolder) holder;
            viewHolder.bind(barrage);
        }
    }

    @Override
    public int getItemViewType(int position, TUIBarrage barrage) {
        if (...) { // If the current barrage requires a custom Item style, return the corresponding style type.
            return GIFT_VIEW_TYPE_1;
        }
        return 0; // 0 indicates that the default style is used
    }

    private static class GiftViewHolder extends RecyclerView.ViewHolder {

        public GiftViewHolder(View itemView) {
            super(itemView);
            // ...
        }

        public void bind(TUIBarrage barrage) {
            // ...
        }
    }
}
            
// set custom Adapter
barrageDisplayView.setAdapter(new GiftBarrageAdapter(mContext));
TUIBarrage is defined as follows:
public class TUIBarrage {
    public final TUIBarrageUser    user = new TUIBarrageUser(); //Sender
    public String                  content;                     //Sent content
    public HashMap<String, Object> extInfo = new HashMap<>();   //Expanded informati
}
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public class TUIBarrageUser {
    public String userId;
    public String userName;
    public String avatarUrl;
    public String level;
}
Note：
Supports multiple custom styles (specified by multiple return values through getItemViewType ), 0 represents the default style.
InsertCustomMessage
The barrage display component TUIBarrageDisplayView provides the external interface method insertBarrages for inserting custom messages (in batches). Custom messages are usually used in combination with custom styles to achieve different display effects.
// Example: Insert a gift message in the barrage area.
TUIBarrage barrage = new TUIBarrage();
barrage.content = "gift";
barrage.user.userId = sender.userId;
barrage.user.userName = sender.userName;
barrage.user.avatarUrl = sender.avatarUrl;
barrage.user.level = sender.level;
barrage.extInfo.put(Constants.GIFT_VIEW_TYPE, GIFT_VIEW_TYPE_1);
barrage.extInfo.put(GIFT_NAME, barrage.giftName);
barrage.extInfo.put(GIFT_COUNT, giftCount);
barrage.extInfo.put(GIFT_ICON_URL, barrage.imageUrl);
barrage.extInfo.put(GIFT_RECEIVER_USERNAME, receiver.userName);
barrageDisplayView.insertBarrages(barrage);
Note：
The extInfo of TUIBarrage is a Map, used for storing custom data.