...

app/src/main/java/com/base/browserwhite/MyApplication.kt

@@ -31,8 +31,7 @@ class MyApplication : Application() {
     override fun onCreate() {
         super.onCreate()
         context = this
-
-
+        initApp()
     }
 
     fun initApp() {

app/src/main/java/com/base/browserwhite/ui/activity/download/DownloadAdapter.kt

@@ -290,6 +290,7 @@ class DownloadAdapter : BaseQuickAdapter<DownloadBean, DownloadAdapter.DownloadV
     private fun createNewLister(item: DownloadBean, tag: String = "", position: Int): FileDownloadListener {
         return object : FileDownloadListener() {
             override fun pending(task: BaseDownloadTask?, soFarBytes: Int, totalBytes: Int) {
+                LogEx.logDebug(TAG, "pending tag=$tag item=${item.downloadId} ${task?.id}")
             }
 
             override fun progress(task: BaseDownloadTask?, soFarBytes: Int, totalBytes: Int) {

app/src/main/java/com/base/browserwhite/ui/activity/download/WebDownloadManagerActivity.kt

@@ -100,6 +100,11 @@ class WebDownloadManagerActivity : BaseActivity<ActivityWebDownloadManagerBindin
         recordFile.writeText(json)
     }
 
+    private fun clearDownloadJson() {
+        val recordFile = getDownloadJson()
+        recordFile.writeText("")
+    }
+
     override fun initListener() {
         super.initListener()
         onBackPressedDispatcher.addCallback {
@@ -114,7 +119,15 @@ class WebDownloadManagerActivity : BaseActivity<ActivityWebDownloadManagerBindin
         }
         binding.ivDelete.setOnClickListener {
             showDeleteTipDialog {
-
+                runCatching {
+                    adapter.items.forEach {
+                        File(it.path).delete()
+                        clearDownloadJson()
+                    }
+                }
+                binding.llEmpty.isVisible = true
+                binding.ivDelete.isEnabled = false
+                adapter.submitList(listOf())
             }
         }
     }
@@ -123,7 +136,9 @@ class WebDownloadManagerActivity : BaseActivity<ActivityWebDownloadManagerBindin
 
         val list = getDownloadJsonBean(getDownloadJson())
 
+
         if (list.isEmpty()) {
+            binding.ivDelete.isEnabled = false
             binding.llEmpty.isVisible = true
         } else {
             val beanList = arrayListOf<DownloadBean>()
@@ -141,6 +156,7 @@ class WebDownloadManagerActivity : BaseActivity<ActivityWebDownloadManagerBindin
                 beanList.add(old.apply { uiType = 1 })
             }
             adapter.submitList(beanList)
+            binding.ivDelete.isEnabled = true
         }
 
     }

app/src/main/res/drawable/bg_delete_download.xml

+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item  android:state_enabled="true" android:drawable="@mipmap/d_del_s"/>
+    <item  android:state_enabled="false" android:drawable="@mipmap/d_del"/>
+</selector>
\ No newline at end of file

app/src/main/res/layout/activity_web_download_manager.xml

@@ -50,7 +50,8 @@
             android:layout_height="wrap_content"
             android:layout_gravity="center_vertical|end"
             android:layout_marginEnd="16dp"
-            android:src="@mipmap/d_del_s"
+            android:enabled="false"
+            android:src="@drawable/bg_delete_download"
             tools:ignore="ContentDescription" />
 
     </FrameLayout>