software copyright
This commit is contained in:
jiahong
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/**
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* 自然写互动课堂电视端应用软件 V1.0
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* Leanback主界面Fragment - Android TV主界面导航
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*
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* 功能说明：
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* 1. Leanback BrowseSupportFragment主界面布局
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* 2. D-Pad遥控器焦点导航适配（方向键/确认键/返回键）
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* 3. 多功能区域展示（课堂笔迹、互动答题、学情报告、设置）
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* 4. 课堂状态实时显示（当前课堂信息、在线学生数）
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* 5. 语音操控集成（Android TV语音搜索）
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* 6. 网关连接状态指示
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* 7. 自动全屏沉浸式模式
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*/
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package com.writech.tv.ui
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import android.content.Context
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import android.graphics.Color
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import android.os.Bundle
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import android.os.Handler
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import android.os.Looper
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import android.util.Log
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import android.view.KeyEvent
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import android.view.View
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import android.view.WindowManager
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import android.widget.Toast
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import java.text.SimpleDateFormat
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import java.util.*
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/**
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* TV端主界面数据模型 - 功能卡片
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*/
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data class FunctionCard(
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val id: String, // 卡片唯一标识
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val title: String, // 标题
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val description: String, // 描述
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val iconRes: Int, // 图标资源ID
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val category: String, // 所属分类
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val action: String // 点击动作标识
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)
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/**
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* 课堂状态信息
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*/
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data class ClassroomStatus(
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var isActive: Boolean = false, // 是否有进行中的课堂
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var classId: String = "", // 课堂ID
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var className: String = "", // 课堂名称
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var teacherName: String = "", // 授课教师
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var onlineStudentCount: Int = 0, // 在线学生数
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var totalStudentCount: Int = 0, // 总学生数
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var startTime: Long = 0, // 课堂开始时间
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var currentSubject: String = "" // 当前科目
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)
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/**
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* TV端Leanback主界面Fragment
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* 采用Android TV Leanback库的BrowseSupportFragment风格
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* 适配遥控器D-Pad焦点导航操作
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*/
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class MainFragment {
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companion object {
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private const val TAG = "MainFragment"
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// 功能分类ID
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private const val CATEGORY_CLASSROOM = "classroom"
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private const val CATEGORY_INTERACTIVE = "interactive"
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private const val CATEGORY_REPORT = "report"
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private const val CATEGORY_SETTINGS = "settings"
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}
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/** 当前课堂状态 */
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private val classroomStatus = ClassroomStatus()
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/** 功能卡片列表（按分类组织） */
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private val functionCards = mutableMapOf<String, MutableList<FunctionCard>>()
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/** 主线程Handler */
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private val handler = Handler(Looper.getMainLooper())
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/** 课堂计时器 */
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private var classroomTimer: Timer? = null
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/** 日期格式化器 */
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private val dateFormat = SimpleDateFormat("HH:mm:ss", Locale.CHINA)
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/**
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* 初始化界面
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* 配置Leanback样式、加载功能卡片、设置焦点导航
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*/
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fun initialize() {
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// 配置Leanback主题色
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// brandColor = Color.parseColor("#1976D2")
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// searchAffordanceColor = Color.parseColor("#2196F3")
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// 加载功能卡片数据
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loadFunctionCards()
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// 设置搜索回调（语音搜索）
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setupSearch()
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// 设置全屏沉浸式模式
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setupImmersiveMode()
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Log.i(TAG, "主界面初始化完成")
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}
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/**
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* 加载功能卡片列表
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* 按分类组织：课堂展示、互动答题、学情报告、系统设置
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*/
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private fun loadFunctionCards() {
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// 课堂展示功能
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val classroomCards = mutableListOf(
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FunctionCard(
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id = "stroke_display",
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title = "全班笔迹实时展示",
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description = "大屏展示全班学生实时书写笔迹",
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iconRes = 0, // R.drawable.ic_stroke_display
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category = CATEGORY_CLASSROOM,
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action = "open_stroke_display"
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),
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FunctionCard(
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id = "multi_compare",
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title = "多学生同屏对比",
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description = "选择学生笔迹并排对比展示",
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iconRes = 0,
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category = CATEGORY_CLASSROOM,
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action = "open_multi_compare"
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),
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FunctionCard(
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id = "copybook_display",
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title = "字帖临摹展示",
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description = "放大范字与学生实时书写对比",
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iconRes = 0,
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category = CATEGORY_CLASSROOM,
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action = "open_copybook"
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),
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FunctionCard(
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id = "stroke_replay",
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title = "笔迹回放",
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description = "回放学生书写过程（支持变速）",
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iconRes = 0,
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category = CATEGORY_CLASSROOM,
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action = "open_replay"
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)
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)
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// 课堂互动功能
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val interactiveCards = mutableListOf(
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FunctionCard(
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id = "quiz_display",
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title = "答题结果展示",
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description = "大屏展示课堂互动答题统计",
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iconRes = 0,
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category = CATEGORY_INTERACTIVE,
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action = "open_quiz_display"
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),
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FunctionCard(
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id = "random_pick",
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title = "随机点名",
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description = "随机抽取学生进行展示",
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iconRes = 0,
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category = CATEGORY_INTERACTIVE,
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action = "open_random_pick"
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),
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FunctionCard(
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id = "group_display",
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title = "分组展示",
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description = "按小组展示学生作品",
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iconRes = 0,
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category = CATEGORY_INTERACTIVE,
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action = "open_group_display"
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)
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)
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// 学情报告功能
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val reportCards = mutableListOf(
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FunctionCard(
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id = "class_report",
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title = "班级学情概览",
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description = "班级整体学情数据大屏展示",
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iconRes = 0,
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category = CATEGORY_REPORT,
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action = "open_class_report"
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),
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FunctionCard(
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id = "student_report",
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title = "学生学情详情",
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description = "单个学生学情画像详细展示",
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iconRes = 0,
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category = CATEGORY_REPORT,
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action = "open_student_report"
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),
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FunctionCard(
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id = "growth_chart",
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title = "书写成长轨迹",
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description = "学生书写能力变化趋势图",
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iconRes = 0,
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category = CATEGORY_REPORT,
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action = "open_growth_chart"
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)
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)
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// 系统设置功能
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val settingsCards = mutableListOf(
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FunctionCard(
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id = "gateway_settings",
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title = "网关连接",
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description = "搜索并绑定教室网关设备",
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iconRes = 0,
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category = CATEGORY_SETTINGS,
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action = "open_gateway_settings"
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),
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FunctionCard(
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id = "display_settings",
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title = "显示设置",
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description = "分辨率、字体大小、背景色调整",
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iconRes = 0,
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category = CATEGORY_SETTINGS,
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action = "open_display_settings"
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),
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FunctionCard(
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id = "network_settings",
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title = "网络设置",
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description = "WiFi连接、云平台地址配置",
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iconRes = 0,
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category = CATEGORY_SETTINGS,
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action = "open_network_settings"
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),
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FunctionCard(
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id = "about",
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title = "关于",
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description = "版本信息、设备ID、软件许可",
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iconRes = 0,
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category = CATEGORY_SETTINGS,
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action = "open_about"
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)
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)
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functionCards[CATEGORY_CLASSROOM] = classroomCards
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functionCards[CATEGORY_INTERACTIVE] = interactiveCards
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functionCards[CATEGORY_REPORT] = reportCards
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functionCards[CATEGORY_SETTINGS] = settingsCards
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Log.i(TAG, "功能卡片加载完成，共${functionCards.values.sumOf { it.size }}个")
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}
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/**
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* 处理功能卡片点击事件
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* 根据action标识跳转到对应的功能Fragment
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*/
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fun onCardSelected(card: FunctionCard) {
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Log.i(TAG, "选中功能: ${card.title} -> ${card.action}")
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when (card.action) {
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"open_stroke_display" -> navigateToStrokeDisplay()
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"open_multi_compare" -> navigateToMultiCompare()
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"open_copybook" -> navigateToCopybookDisplay()
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"open_replay" -> navigateToReplay()
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"open_quiz_display" -> navigateToQuizDisplay()
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"open_random_pick" -> performRandomPick()
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"open_group_display" -> navigateToGroupDisplay()
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"open_class_report" -> navigateToClassReport()
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"open_student_report" -> navigateToStudentReport()
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"open_growth_chart" -> navigateToGrowthChart()
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"open_gateway_settings" -> navigateToGatewaySettings()
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"open_display_settings" -> navigateToDisplaySettings()
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"open_network_settings" -> navigateToNetworkSettings()
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"open_about" -> navigateToAbout()
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else -> Log.w(TAG, "未知操作: ${card.action}")
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}
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}
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/** 设置语音搜索（Android TV Voice Search） */
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private fun setupSearch() {
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// setOnSearchClickedListener { openSearchFragment() }
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Log.i(TAG, "语音搜索配置完成")
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}
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/** 设置全屏沉浸式模式 */
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private fun setupImmersiveMode() {
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// activity?.window?.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
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// activity?.window?.addFlags(WindowManager.LayoutParams.FLAG_SECURE) // 防截屏
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Log.i(TAG, "沉浸式模式已启用")
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}
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/**
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* 处理遥控器按键事件
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* 适配D-Pad方向键、确认键、返回键、菜单键
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*/
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fun onKeyEvent(keyCode: Int, event: KeyEvent): Boolean {
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return when (keyCode) {
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KeyEvent.KEYCODE_DPAD_CENTER, KeyEvent.KEYCODE_ENTER -> {
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// 确认键：选中当前焦点项
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Log.d(TAG, "遥控器确认键按下")
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false // 交给焦点系统处理
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}
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KeyEvent.KEYCODE_MENU -> {
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// 菜单键：显示快捷操作面板
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showQuickActions()
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true
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}
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KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE -> {
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// 播放/暂停键：控制笔迹回放
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toggleReplayPause()
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true
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}
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else -> false
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}
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}
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/** 显示快捷操作面板 */
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private fun showQuickActions() {
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Log.i(TAG, "显示快捷操作面板")
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}
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/** 切换回放暂停/继续 */
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private fun toggleReplayPause() {
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Log.i(TAG, "切换回放状态")
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}
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/* ========== 课堂状态管理 ========== */
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/** 更新课堂状态 */
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fun updateClassroomStatus(status: ClassroomStatus) {
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classroomStatus.isActive = status.isActive
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classroomStatus.classId = status.classId
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classroomStatus.className = status.className
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classroomStatus.teacherName = status.teacherName
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classroomStatus.onlineStudentCount = status.onlineStudentCount
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classroomStatus.totalStudentCount = status.totalStudentCount
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classroomStatus.startTime = status.startTime
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classroomStatus.currentSubject = status.currentSubject
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if (status.isActive) {
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startClassroomTimer()
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} else {
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stopClassroomTimer()
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}
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// 更新Header显示
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updateHeaderInfo()
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}
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/** 启动课堂计时器（实时显示课堂进行时长） */
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private fun startClassroomTimer() {
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stopClassroomTimer()
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classroomTimer = Timer("classroom-timer")
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classroomTimer?.scheduleAtFixedRate(object : TimerTask() {
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override fun run() {
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val elapsed = System.currentTimeMillis() - classroomStatus.startTime
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val minutes = (elapsed / 60000).toInt()
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val seconds = ((elapsed % 60000) / 1000).toInt()
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val timeStr = String.format("%02d:%02d", minutes, seconds)
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handler.post {
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// 更新课堂时长显示
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Log.d(TAG, "课堂进行: $timeStr")
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}
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}
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}, 0, 1000)
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}
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/** 停止课堂计时器 */
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private fun stopClassroomTimer() {
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classroomTimer?.cancel()
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classroomTimer = null
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}
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/** 更新顶部标题栏信息 */
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private fun updateHeaderInfo() {
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val title = if (classroomStatus.isActive) {
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"${classroomStatus.className} - ${classroomStatus.currentSubject}" +
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" (${classroomStatus.onlineStudentCount}/${classroomStatus.totalStudentCount}人在线)"
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} else {
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"自然写互动课堂"
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}
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// 设置标题
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Log.i(TAG, "更新标题: $title")
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}
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/** 执行随机点名 */
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private fun performRandomPick() {
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if (!classroomStatus.isActive) {
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Log.w(TAG, "当前无进行中的课堂，无法随机点名")
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return
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}
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// 从在线学生列表中随机抽取
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Log.i(TAG, "执行随机点名")
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}
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/* ========== 导航方法 ========== */
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private fun navigateToStrokeDisplay() { Log.i(TAG, "跳转: 全班笔迹展示") }
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private fun navigateToMultiCompare() { Log.i(TAG, "跳转: 多学生对比") }
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private fun navigateToCopybookDisplay() { Log.i(TAG, "跳转: 字帖临摹") }
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private fun navigateToReplay() { Log.i(TAG, "跳转: 笔迹回放") }
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private fun navigateToQuizDisplay() { Log.i(TAG, "跳转: 答题展示") }
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private fun navigateToGroupDisplay() { Log.i(TAG, "跳转: 分组展示") }
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private fun navigateToClassReport() { Log.i(TAG, "跳转: 班级学情") }
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private fun navigateToStudentReport() { Log.i(TAG, "跳转: 学生学情") }
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private fun navigateToGrowthChart() { Log.i(TAG, "跳转: 成长轨迹") }
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private fun navigateToGatewaySettings() { Log.i(TAG, "跳转: 网关设置") }
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private fun navigateToDisplaySettings() { Log.i(TAG, "跳转: 显示设置") }
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private fun navigateToNetworkSettings() { Log.i(TAG, "跳转: 网络设置") }
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private fun navigateToAbout() { Log.i(TAG, "跳转: 关于") }
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/** 释放资源 */
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fun release() {
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stopClassroomTimer()
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functionCards.clear()
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Log.i(TAG, "主界面资源已释放")
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}
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}
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Reference in New Issue
Block a user