fix(base): 修复Loading弹窗管理和超时机制

- 添加了Loading超时自动关闭功能，默认15秒超时
- 实现了Activity销毁时只关闭自己的Loading，防止误关其他页面
- 优化了Loading重复显示时的节流处理，避免ANR问题
- 在BaseActivity中增加了showLoading方法的超时参数支持
- 为图片上传等长时间操作添加了60秒超时兜底机制
- 增加了相关日志便于调试Loading的显示和关闭流程

app/src/main/java/com/shuwei/dish/match/base/BaseActivity.kt

@@ -5,6 +5,7 @@ import android.content.pm.ActivityInfo
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
+import android.util.Log
 import android.view.View
 import android.widget.FrameLayout
 import android.widget.ImageView
@@ -37,6 +38,7 @@ import kotlin.getValue
 open class BaseActivity : AppCompatActivity() {
 
     companion object {
+        const val TAG = "BaseActivity"
         /** 日期时间格式化器，复用避免每秒重复创建 */
         private val DATE_FORMATTER =
             DateTimeFormatter.ofPattern("yyyy年MM月dd日 EEEE***HH:mm:ss", Locale.CHINA)
@@ -71,7 +73,8 @@ open class BaseActivity : AppCompatActivity() {
 
     override fun onDestroy() {
         handler.removeCallbacksAndMessages(null)
-        dismissLoading()
+        // 只关闭自己弹出的 Loading，防止误关其他 Activity 的 Loading
+        Loading.dismissIfOwnedBy(this)
         super.onDestroy()
         ActivityManager.removeActivity(this)
     }
@@ -150,22 +153,25 @@ open class BaseActivity : AppCompatActivity() {
         handler.removeCallbacks(updateTask)
     }
 
-    fun showLoading(msg: String = "加载中……") {
+    fun showLoading(msg: String = "加载中……", timeoutMs: Long = Loading.DEFAULT_TIMEOUT_MS) {
         handler.post {
             Loading.show(
                 context = this,
-                message = msg
+                message = msg,
+                timeoutMs = timeoutMs
             )
         }
     }
 
     fun dismissLoading() {
+        Log.d(TAG, "dismissLoading, ${this.javaClass.simpleName}")
         handler.post {
             Loading.dismiss()
         }
     }
 
     fun delayDismissLoading() {
+        Log.d(TAG, "delayDismissLoading, ${this.javaClass.simpleName}")
         handler.postDelayed({
             Loading.dismiss()
         }, 500)

app/src/main/java/com/shuwei/dish/match/dialog/LoadingDialog.kt

@@ -1,17 +1,28 @@
 package com.shuwei.dish.match.dialog
 
+import android.annotation.SuppressLint
 import android.app.Dialog
 import android.content.Context
 import android.graphics.Color
+import android.os.Handler
+import android.os.Looper
 import android.view.LayoutInflater
 import android.view.WindowManager
 import androidx.core.graphics.drawable.toDrawable
 import com.shuwei.dish.match.R
 import com.shuwei.dish.match.databinding.DialogLoadingBinding
 
+@SuppressLint("StaticFieldLeak")
 object Loading {
 
+    /** 默认超时兜底时长（毫秒）：业务方未传值时使用 */
+    const val DEFAULT_TIMEOUT_MS = 15_000L
+
     private var dialog: LoadingDialog? = null
+    /** 当前持有 Loading 的 context，用于隔离 Activity 销毁时的误关 */
+    private var owner: Context? = null
+    private val timeoutHandler = Handler(Looper.getMainLooper())
+    private val timeoutRunnable = Runnable { dismiss() }
 
     fun isShowing(): Boolean {
         return dialog != null && dialog!!.isShowing
@@ -22,30 +33,71 @@ object Loading {
         dialog!!.updateContent(content)
     }
 
-    fun show(context: Context, message: String = "加载中……", onDismiss: () -> Unit = {}) {
+    /**
+     * 显示 Loading 弹窗
+     *
+     * @param context   上下文
+     * @param message   提示文案
+     * @param timeoutMs 超时兜底时长（毫秒）：到期自动 dismiss；传 0 关闭兜底，由业务方自己负责
+     * @param onDismiss 关闭回调
+     */
+    fun show(
+        context: Context,
+        message: String = "加载中……",
+        timeoutMs: Long = DEFAULT_TIMEOUT_MS,
+        onDismiss: () -> Unit = {}
+    ) {
         try {
+            // 节流：已显示中只更新文案 + 重置超时，不重新 attach 窗口
+            // 避免反复触发 FocusEvent 在主线程繁忙时引发 ANR
             if (dialog?.isShowing == true) {
-                dialog?.dismiss()
-            }
-            if (dialog == null) {
-                dialog = LoadingDialog(context = context, message = message, onDismiss = onDismiss)
+                dialog?.updateContent(message)
+                owner = context  // 同一弹窗最后一次 show 决定 owner
+                resetTimeout(timeoutMs)
+                return
             }
+            dialog = LoadingDialog(context = context, message = message, onDismiss = onDismiss)
+            owner = context
             dialog?.show()
+            resetTimeout(timeoutMs)
         } catch (e: Exception) {
             e.printStackTrace()
         }
     }
 
     fun dismiss() {
+        timeoutHandler.removeCallbacks(timeoutRunnable)
         try {
             dialog?.let {
                 if (it.isShowing) {
                     it.dismiss()
                 }
             }
-            dialog = null
         } catch (e: Exception) {
             e.printStackTrace()
+        } finally {
+            dialog = null
+            owner = null
+        }
+    }
+
+    /**
+     * Activity 销毁专用：只关闭自己持有的 Loading，防止跨 Activity 误关
+     * 单例 Loading 在多 Activity 共享时，若每个 Activity 的 onDestroy 都无脑 dismiss，
+     * 会误关后启动 Activity 弹出的 Loading；由本方法做 owner 校验后才允许关闭
+     */
+    fun dismissIfOwnedBy(context: Context) {
+        if (owner === context) dismiss()
+    }
+
+    /**
+     * 重置超时兜底定时器
+     * @param timeoutMs <=0 表示不安排定时器（关闭兜底）
+     */
+    private fun resetTimeout(timeoutMs: Long) {
+        timeoutHandler.removeCallbacks(timeoutRunnable)
+        if (timeoutMs > 0) {
+            timeoutHandler.postDelayed(timeoutRunnable, timeoutMs)
         }
     }
 

app/src/main/java/com/shuwei/dish/match/ui/fragment/FoodListFragment.kt

@@ -145,6 +145,8 @@ class FoodListFragment : BaseFragment<FragmentFoodListBinding>() {
 
     override fun onResume() {
         super.onResume()
+        Log.d(TAG, "onResume, dinnerType=$dinnerType, isVisible=${isVisible}, isHidden=${isHidden}")
+        if (isHidden) return  // 过滤 Activity 回前台时隐藏 tab 的无效触发
         runCatching {
             pageNo = 1
             getDishList(currentFoodName)
@@ -226,16 +228,19 @@ class FoodListFragment : BaseFragment<FragmentFoodListBinding>() {
             val localList = if (pageNo == 1) pendingLocalList else null
             netViewModel.searchFoodListWithCallback(
                 param = param,
-                onLoading = { activity.showLoading() }
+                onLoading = { activity.showLoading(timeoutMs = 35_000L) }
             ) { result ->
                 when (result) {
                     is UiState.Success -> {
+                        if (isAdded.not()) return@searchFoodListWithCallback
+                        Log.d(TAG, "getDishList, UiState.Success")
                         activity.delayDismissLoading()
                         finishRefresh()
                         loadAndMergeDishList(result.data, localList)
                     }
                     is UiState.Error -> {
                         if (isAdded.not()) return@searchFoodListWithCallback
+                        Log.d(TAG, "getDishList, UiState.Error")
                         toast(result.msg)
                         finishRefresh()
                         activity.delayDismissLoading()

app/src/main/java/com/shuwei/dish/match/ui/fragment/VectorCollectionFragment.kt

@@ -334,7 +334,9 @@ class VectorCollectionFragment : BaseFragment<FragmentVectorCollectionBinding>()
     private fun upload() {
         lifecycleScope.launch {
             val totalFileCount = vectorList.count { it.imageFile != null }
-            showWaitingDialog("图片上传中0/$totalFileCount")
+            // 上传场景单批可能耗时较长（含图片传输 + 网络往返），用 60s 超时兜底
+            // 每次 onProgress 都会重新调用 showWaitingDialog，会重置定时器，正常进度不会触发兜底
+            showWaitingDialog("图片上传中0/$totalFileCount", timeoutMs = 60_000L)
             val params = mutableMapOf<String, RequestBody>()
             params["goodsId"] = checkedItem!!.goodsId.toRequestBody()
             params["goodsName"] = checkedItem!!.goodsName!!.toRequestBody()
@@ -358,7 +360,7 @@ class VectorCollectionFragment : BaseFragment<FragmentVectorCollectionBinding>()
                 log("uploadImage返回：result=${result.toJsonString()}")
                 if (result is UiState.Success) result.data else null
             }, onProgress = { count, batch, idList ->
-                showWaitingDialog("图片上传中$count/$totalFileCount")
+                showWaitingDialog("图片上传中$count/$totalFileCount", timeoutMs = 60_000L)
                 val foodList = batch.mapIndexed { index, it ->
                     val name = checkedItem!!.goodsName + "&&" + checkedItem!!.rawMaterialsType
                     Food(
@@ -507,12 +509,14 @@ class VectorCollectionFragment : BaseFragment<FragmentVectorCollectionBinding>()
         currentActivity.dismissLoading()
     }
 
-    private fun showWaitingDialog(msg: String) {
-        if (Loading.isShowing()) {
-            Loading.updateContent(msg)
-            return
-        }
-        currentActivity.showLoading(msg)
+    /**
+     * 显示等待弹窗
+     * @param msg       提示文案
+     * @param timeoutMs 超时兜底时长（毫秒）：到期自动关闭，传 0 关闭兜底
+     *                  Loading 内部已做节流，重复调用只会更新文案 + 重置超时定时器
+     */
+    private fun showWaitingDialog(msg: String, timeoutMs: Long = Loading.DEFAULT_TIMEOUT_MS) {
+        currentActivity.showLoading(msg, timeoutMs)
     }
 
     private lateinit var previewView: PreviewView