弹幕（Android）

import kotlinx.coroutines.*
import kotlinx.coroutines.flow.*
import io.trtc.tuikit.atomicxcore.api.barrage.Barrage
import io.trtc.tuikit.atomicxcore.api.barrage.BarrageStore

class BarrageManager(
    private val liveId: String
) {
    private val barrageStore: BarrageStore = BarrageStore.create(liveId)
    private val scope = CoroutineScope(Dispatchers.Main)
    
    // 对外暴露【全量】消息列表的Flow，方便UI层订阅
    private val _messagesFlow = MutableStateFlow<List<Barrage>>(emptyList())
    val messagesFlow: StateFlow<List<Barrage>> = _messagesFlow.asStateFlow()
    
    init {
        // 初始化后立即开始监听弹幕消息
        subscribeToBarrageUpdates()
    }

    private fun subscribeToBarrageUpdates() {
        scope.launch {
            barrageStore.barrageState.messageList
                .collect { messageList ->
                    // 当 messageList 更新时，通过 Flow 将新列表传递给UI层
                    // 关键点：这里接收到的是包含所有历史消息的【完整列表】
                    _messagesFlow.value = messageList
                }
        }
    }
}

import io.trtc.tuikit.atomicxcore.api.CompletionHandler
import io.trtc.tuikit.atomicxcore.api.barrage.BarrageStore

class BarrageManager(
    private val liveId: String
) {
    private val barrageStore: BarrageStore = BarrageStore.create(liveId)

    // 发送一条文本弹幕
    fun sendTextMessage(text: String) {
        // 建议：增加非空校验，避免发送无效消息
        if (text.isEmpty()) {
            return
        }
        
        // 调用核心API发送消息
        barrageStore.sendTextMessage(
            text,
            mapOf(
                "custom key" to "custom value",
            ),
            object : CompletionHandler {
                override fun onSuccess() {
                    println("文本弹幕 '$text' 发送成功")
                }

                override fun onFailure(code: Int, desc: String) {
                    println("文本弹幕发送失败: $desc")
                }
            }
        )
    }
}


class BarrageManager(
    private val liveId: String
) {
    // 发送一条自定义弹幕，例如用于发送礼物
    fun sendGiftMessage(giftId: String, giftCount: Int) {
        // 1. 定义一个能识别业务的ID
        val businessId = "live_gift"

        // 2. 将业务数据编码为 JSON 字符串
        val giftData = mapOf(
            "gift_id" to giftId,
            "gift_count" to giftCount
        )

        val jsonString = try {
            // 使用 Gson 或其他 JSON 库进行序列化
            // 这里假设使用 Gson
            Gson().toJson(giftData)
        } catch (e: Exception) {
            return
        }

        // 3. 调用核心API发送自定义消息
        barrageStore.sendCustomMessage(
            businessId,
            jsonString,
            object : CompletionHandler {
                override fun onSuccess() {
                    println("礼物消息（自定义弹幕）发送成功")
                }
                
                override fun onFailure(code: Int, desc: String) {
                    println("礼物消息发送失败: $desc")
                }
            }
        )
    }
}

class BarrageManager(
    private val liveId: String
) {
    // 在本地消息列表中插入一条欢迎提示
    fun showWelcomeMessage(user: LiveUserInfo) {
        // 1. 创建一条 Barrage 消息
        val welcomeTip = Barrage(
            liveID = liveId,
            messageType = BarrageType.TEXT, // 可以复用 text 类型来显示
            textContent = "欢迎 ${user.userName} 进入直播间！",
            sender = LiveUserInfo() // sender 可以留空或设置为一个系统用户的标识
        )

        // 2. 调用API将其插入本地列表
        barrageStore.appendLocalTip(welcomeTip)
    }
}

import io.trtc.tuikit.atomicxcore.api.*
import io.trtc.tuikit.atomicxcore.api.live.LiveAudienceStore

// 1. 获取与当前直播间绑定的 LiveAudienceStore 实例
val audienceStore = LiveAudienceStore.create(liveId)

// 2. 定义要操作的用户ID和禁言状态
val userIdToMute = "user_id_to_be_muted"
val shouldDisable = true // true为禁言, false为解禁

// 3. 调用接口执行操作
audienceStore.disableSendMessage(
    userIdToMute,
    shouldDisable,
    object : CompletionHandler {
        override fun onSuccess() {
            println("${if (shouldDisable) "禁言" else "解禁"}用户 $userIdToMute 成功")
        }

        override fun onFailure(code: Int, desc: String) {
            println("操作失败: $desc")
        }
    }
)

import io.trtc.tuikit.atomicxcore.api.CompletionHandler
import io.trtc.tuikit.atomicxcore.api.live.LiveInfo
import io.trtc.tuikit.atomicxcore.api.live.LiveListStore

// 1. 获取 LiveListStore 单例
val liveListStore = LiveListStore.shared()

// 2. 获取当前直播间信息，并修改全体禁言状态
val currentLiveInfo = liveListStore.liveState.currentLive.value.copy(
    isMessageDisable = true // true为全体禁言, false为关闭
)

// 3. 调用更新接口，并指定修改的标志位
liveListStore.updateLiveInfo(
    currentLiveInfo,
    listOf(LiveInfo.ModifyFlag.IS_MESSAGE_DISABLE),
    object : CompletionHandler {
        override fun onSuccess() {
            println("全体禁言状态更新成功")
        }

        override fun onFailure(code: Int, desc: String) {
            println("操作失败: $desc")
        }
    }
)

import android.os.Handler
import androidx.recyclerview.widget.RecyclerView
import io.trtc.tuikit.atomicxcore.api.barrage.Barrage

private const val UPDATE_DURATION_MS = 300L

class BarrageUIManager() {
    private var timestampOnLastUpdate = 0L

    private var dataSource: ArrayList<Barrage> = ArrayList()
    private val updateViewTask = Runnable { notifyDataSetChanged() }
    private val handler = Handler()
    private val adapter = BarrageAdapter(dataSource)

    // 外部高频调用此方法，传入最新的全量列表
    fun update(newList: List<Barrage>) {
        handler.removeCallbacks(updateViewTask)
        dataSource.clear()
        dataSource.addAll(newList)
        // 刷新频率小于 0.3 秒，不做刷新
        if (System.currentTimeMillis() - timestampOnLastUpdate < UPDATE_DURATION_MS) {
            handler.postDelayed(updateViewTask, UPDATE_DURATION_MS)
            return
        }
    }

    private fun notifyDataSetChanged() {
        adapter.notifyDataSetChanged()
        timestampOnLastUpdate = System.currentTimeMillis()
    }
}

class BarrageAdapter(dataSource: ArrayList<Barrage>): RecyclerView.Adapter<RecyclerView.ViewHolder>() {
    //这里实现adapter能力
}

class BarrageUIManager(
    private val recyclerView: RecyclerView
) {
    private val capacity: Int = 500 // 客户端只保留最新的500条消息
    // ...（其他代码同上）...

    private fun refreshUIIfNeeded() {
        val fullList = this.latestMessageList ?: return
        val adapter = recyclerView.adapter ?: return
        this.latestMessageList = null 

        // 关键点：截取最新的N条消息
        val cappedList = fullList.takeLast(capacity)
        
        dataSource.clear()
        dataSource.addAll(cappedList)
        adapter.notifyDataSetChanged()
    }
}

import android.view.LayoutInflater
import androidx.asynclayoutinflater.view.AsyncLayoutInflater
import androidx.recyclerview.widget.RecyclerView

// 在你的自定义弹幕ViewHolder中
class BarrageViewHolder(
    itemView: View
) : RecyclerView.ViewHolder(itemView) {

    // ... (TextView, ImageView等子视图的声明)

    companion object {
        fun create(parent: ViewGroup): BarrageViewHolder {
            // 使用异步布局加载器来减少主线程阻塞
            val inflater = AsyncLayoutInflater(parent.context)
            val view = LayoutInflater.from(parent.context)
                .inflate(R.layout.item_barrage, parent, false)
            return BarrageViewHolder(view)
        }
    }

    fun bind(viewModel: BarrageViewModel) {
        // 在这里设置你的TextView文本、ImageView图片等
        // 由于使用了异步布局加载，这些内容的最终渲染会尽量在后台完成
    }

    // 追求极致性能的进阶方案：完全手动绘制
    // 如果需要更精细的控制，可以使用Canvas手动绘制文本和图片
    // 结合后台线程生成Bitmap，然后在主线程的onDraw方法中绘制它，可以实现完全的异步渲染
}