设备告警日志功能逻辑

app/src/main/java/com/example/defenseapplication/adapter/AlarmLogAdapter.kt

@@ -6,7 +6,10 @@ import androidx.recyclerview.widget.RecyclerView
 import com.example.defenseapplication.bean.DeviceAlarmBean
 import com.example.defenseapplication.databinding.ItemAlarmLogBinding
 
-class AlarmLogAdapter(private val items: List<DeviceAlarmBean>) : RecyclerView.Adapter<AlarmLogAdapter.ViewHolder>() {
+class AlarmLogAdapter(
+    private val items: List<DeviceAlarmBean>,
+    private val onItemClick: (DeviceAlarmBean) -> Unit
+) : RecyclerView.Adapter<AlarmLogAdapter.ViewHolder>() {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         val binding = ItemAlarmLogBinding.inflate(
@@ -23,10 +26,14 @@ class AlarmLogAdapter(private val items: List<DeviceAlarmBean>) : RecyclerView.A
 
     override fun getItemCount(): Int = items.size
 
-    class ViewHolder(private val binding: ItemAlarmLogBinding) : RecyclerView.ViewHolder(binding.root) {
+    inner class ViewHolder(private val binding: ItemAlarmLogBinding) : RecyclerView.ViewHolder(binding.root) {
         fun bind(item: DeviceAlarmBean) {
             binding.tvTitle.text = item.categoryName
             binding.tvTime.text = item.createTime
+            
+            binding.root.setOnClickListener {
+                onItemClick(item)
+            }
         }
     }
 }

app/src/main/java/com/example/defenseapplication/liveVideo/AlarmLogActivity.kt

@@ -42,6 +42,10 @@ class AlarmLogActivity : AppCompatActivity() {
     private var isLightOn = false
     private var deviceId: String? = null
     private var isLoading = false
+    private var fromLiveVideo = false
+    private var passedVideoUrl: String? = null
+    private var passedSelectedId: String? = null
+    private var passedCreateTime: String? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -53,6 +57,10 @@ class AlarmLogActivity : AppCompatActivity() {
             .init()
 
         deviceId = intent.getStringExtra("device_id")
+        fromLiveVideo = intent.getBooleanExtra("from_live_video", false)
+        passedVideoUrl = intent.getStringExtra("video_url")
+        passedSelectedId = intent.getStringExtra("selected_id")
+        passedCreateTime = intent.getStringExtra("create_time")
         calendar = Calendar.getInstance()
         updateDateDisplay()
         initVideoPlayer()
@@ -77,9 +85,14 @@ class AlarmLogActivity : AppCompatActivity() {
 
     private fun initVideoPlayer() {
         val videoPlayerView = binding.exoPlayContextId
+        val videoUri = if (fromLiveVideo && !passedVideoUrl.isNullOrEmpty()) {
+            passedVideoUrl!!
+        } else {
+            "https://media.w3.org/2010/05/sintel/trailer.mp4"
+        }
 
         exoPlayerManager = VideoPlayerManager.Builder(VideoPlayerManager.TYPE_PLAY_GESTURE, videoPlayerView)
-            .setPlayUri("https://media.w3.org/2010/05/sintel/trailer.mp4")
+            .setPlayUri(videoUri)
             .setPosition(0)
             .addVideoInfoListener(object : VideoInfoListener {
                 override fun onPlayStart(p0: Long) {
@@ -87,7 +100,6 @@ class AlarmLogActivity : AppCompatActivity() {
                 }
 
                 override fun onLoadingChanged() {
-                    // 视频加载状态变化
                 }
 
                 override fun onPlayerError(p0: com.google.android.exoplayer2.ExoPlaybackException?) {
@@ -99,11 +111,9 @@ class AlarmLogActivity : AppCompatActivity() {
                 }
 
                 override fun isPlaying(p0: Boolean) {
-                    // p0 表示当前是否正在播放
                 }
 
                 fun onRepeatModeChanged(p0: Int) {
-                    // 循环模式改变时的回调
                 }
             })
             .create()
@@ -145,10 +155,49 @@ class AlarmLogActivity : AppCompatActivity() {
     }
 
     private fun initRecyclerView() {
-        adapter = AlarmLogAdapter(alarmList)
+        adapter = AlarmLogAdapter(alarmList) { item ->
+            if (!item.video.isNullOrEmpty()) {
+                playVideo(item.video!!)
+            } else {
+                Toast.makeText(this, "该告警记录没有视频", Toast.LENGTH_SHORT).show()
+            }
+        }
         binding.alarmListRecyclerView.layoutManager = LinearLayoutManager(this)
         binding.alarmListRecyclerView.adapter = adapter
     }
+    
+    private fun playVideo(videoUrl: String) {
+        exoPlayerManager.onDestroy()
+        
+        exoPlayerManager = VideoPlayerManager.Builder(VideoPlayerManager.TYPE_PLAY_GESTURE, binding.exoPlayContextId)
+            .setPlayUri(videoUrl)
+            .setPosition(0)
+            .addVideoInfoListener(object : VideoInfoListener {
+                override fun onPlayStart(p0: Long) {
+                    Log.d("AlarmLogActivity", "视频开始播放")
+                }
+
+                override fun onLoadingChanged() {
+                }
+
+                override fun onPlayerError(p0: com.google.android.exoplayer2.ExoPlaybackException?) {
+                    Toast.makeText(this@AlarmLogActivity, "播放失败", Toast.LENGTH_SHORT).show()
+                }
+
+                override fun onPlayEnd() {
+                    Log.d("AlarmLogActivity", "播放结束")
+                }
+
+                override fun isPlaying(p0: Boolean) {
+                }
+
+                fun onRepeatModeChanged(p0: Int) {
+                }
+            })
+            .create()
+        
+        exoPlayerManager.startPlayer()
+    }
 
     private fun fetchAlarmList() {
         val currentDeviceId = deviceId ?: return
@@ -297,6 +346,7 @@ class AlarmLogActivity : AppCompatActivity() {
             .setTextColorCenter(Color.parseColor("#09C2BD"))//选中颜色
             .setLineSpacingMultiplier(2.5f)//行间距倍数
             .setItemVisibleCount(5)//可见项数量
+            .setDate(calendar) // 设置默认选中日期为tvDate显示的日期
             .build()
         timePicker.show()
     }

app/src/main/java/com/example/defenseapplication/liveVideo/LiveVideoActivity.kt

@@ -45,9 +45,11 @@ class LiveVideoActivity : BaseActivity() {
     private var alarmList: MutableList<DeviceAlarmBean> = mutableListOf()
     private var alarmAdapter: AlarmLogHorizontalAdapter? = null
     private var currentPage = 1
+    private var totalPage = 1
     private val pageSize = 10
     private var hasMore = true
     private var isLoading = false
+    private var isFirstLoad = true
     
     private val requestPermissionLauncher = registerForActivityResult(
         ActivityResultContracts.RequestPermission()
@@ -130,6 +132,9 @@ class LiveVideoActivity : BaseActivity() {
             val intent = Intent(this, AlarmLogActivity::class.java)
             intent.putExtra("device_id", deviceId)
             intent.putExtra("selected_id", messageBean.id)
+            intent.putExtra("video_url", messageBean.video)
+            intent.putExtra("create_time", messageBean.createTime)
+            intent.putExtra("from_live_video", true)
             startActivity(intent)
         }
         binding.alarmLogRecyclerView.adapter = alarmAdapter
@@ -139,8 +144,7 @@ class LiveVideoActivity : BaseActivity() {
                 super.onScrolled(recyclerView, dx, dy)
                 if (dx > 0 && !isLoading && hasMore) {
                     val lastVisibleItemPosition = layoutManager.findLastVisibleItemPosition()
-                    val totalItemCount = layoutManager.itemCount
+                    if (lastVisibleItemPosition == alarmList.size - 1) {
-                    if (lastVisibleItemPosition >= totalItemCount - 1) {
                         loadMoreAlarms()
                     }
                 }
@@ -151,6 +155,10 @@ class LiveVideoActivity : BaseActivity() {
     private fun loadMoreAlarms() {
         if (!hasMore || isLoading) return
         currentPage++
+        if (currentPage > totalPage) {
+            hasMore = false
+            return
+        }
         fetchAlarmList(currentPage)
     }
 
@@ -187,6 +195,7 @@ class LiveVideoActivity : BaseActivity() {
         binding.xq.setOnClickListener {
             val intent = Intent(this, AlarmLogActivity::class.java)
             intent.putExtra("device_id", deviceId)
+            intent.putExtra("from_live_video", true)
             startActivity(intent)
         }
     }
@@ -220,17 +229,25 @@ class LiveVideoActivity : BaseActivity() {
                     }
                 }
                 
+                totalPage = if (response.total % pageSize == 0) {
+                    response.total / pageSize
+                } else {
+                    response.total / pageSize + 1
+                }
+                Log.d("LiveVideoActivity", "总页数: $totalPage")
+                
+                isFirstLoad = false
+                
                 if (page == 1) {
                     alarmList.clear()
-                    hasMore = true
+                    hasMore = totalPage > 1
                     Log.d("LiveVideoActivity", "第一页，已清空列表")
                 }
+                
                 alarmList.addAll(newData)
                 Log.d("LiveVideoActivity", "已添加 ${newData.size} 条数据，列表总条数: ${alarmList.size}")
                 alarmAdapter?.notifyDataSetChanged()
                 Log.d("LiveVideoActivity", "已通知适配器刷新")
-                hasMore = newData.size >= pageSize
-                Log.d("LiveVideoActivity", "是否有更多数据: $hasMore")
                 
             } catch (e: Exception) {
                 Log.e("LiveVideoActivity", "请求异常: ${e.message}", e)