优化

app/src/main/java/io/legado/app/constant/PreferKey.kt

@@ -123,6 +123,7 @@ object PreferKey {
     const val audioPlayWakeLock = "audioPlayWakeLock"
     const val readAloudWakeLock = "readAloudWakeLock"
     const val showLastUpdateTime = "showLastUpdateTime"
+    const val clearWebViewData = "clearWebViewData"
 
     const val cPrimary = "colorPrimary"
     const val cAccent = "colorAccent"

app/src/main/java/io/legado/app/ui/config/ConfigViewModel.kt

@@ -1,6 +1,7 @@
 package io.legado.app.ui.config
 
 import android.app.Application
+import android.content.Context
 import io.legado.app.R
 import io.legado.app.base.BaseViewModel
 import io.legado.app.help.AppWebDav
@@ -25,5 +26,13 @@ class ConfigViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
+    fun clearWebViewData() {
+        execute {
+            FileUtils.delete(context.getDir("webview", Context.MODE_PRIVATE))
+        }.onSuccess {
+            context.toastOnUi(R.string.success)
+        }
+    }
 
-}
+
+}

app/src/main/java/io/legado/app/ui/config/OtherConfigFragment.kt

@@ -2,6 +2,7 @@ package io.legado.app.ui.config
 
 import android.annotation.SuppressLint
 import android.content.ComponentName
+import android.content.Context
 import android.content.SharedPreferences
 import android.content.pm.PackageManager
 import android.os.Bundle
@@ -131,6 +132,7 @@ class OtherConfigFragment : PreferenceFragment(),
                         AppConfig.sourceEditMaxLine = it
                     }
             }
+            PreferKey.clearWebViewData -> clearWebViewData()
         }
         return super.onPreferenceTreeClick(preference)
     }
@@ -230,6 +232,15 @@ class OtherConfigFragment : PreferenceFragment(),
         }
     }
 
+    private fun clearWebViewData() {
+        alert(R.string.clear_webview_data, R.string.sure_del) {
+            okButton {
+                viewModel.clearWebViewData()
+            }
+            noButton()
+        }
+    }
+
     private fun isProcessTextEnabled(): Boolean {
         return packageManager.getComponentEnabledSetting(componentName) != PackageManager.COMPONENT_ENABLED_STATE_DISABLED
     }

app/src/main/res/values-es-rES/strings.xml

@@ -1069,4 +1069,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values-ja-rJP/strings.xml

@@ -1072,4 +1072,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values-pt-rBR/strings.xml

@@ -1072,4 +1072,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values-zh-rHK/strings.xml

@@ -1069,4 +1069,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values-zh-rTW/strings.xml

@@ -1071,4 +1071,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values-zh/strings.xml

@@ -1071,4 +1071,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">确认</string>
     <string name="jump_to_another_app">跳转其它应用</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -1057,8 +1057,8 @@
     <string name="audio_play_wake_lock">Audio service wake-up lock</string>
     <string name="audio_play_wake_lock_summary">The wake-up lock is enabled when playing audio, and some phones will be killed when the wake-up lock is turned on.</string>
     <string name="change_search_scope">Toggle search scope</string>
-    <string name="copy_rule">Copy Rul</string>
+    <string name="copy_rule">Copy Rule</string>
-    <string name="paste_rule">Paste Rul</string>
+    <string name="paste_rule">Paste Rule</string>
     <string name="groups_or_source">Multi-group / book source</string>
     <string name="replace_state_change">Replace (enable / disable)</string>
     <string name="show_last_update_time">Show last updated time</string>
@@ -1072,4 +1072,6 @@
     <string name="c_blacklist">黑名单(contentBlacklist)</string>
     <string name="confirm">Confirm</string>
     <string name="jump_to_another_app">Jump to another app</string>
+    <string name="clear_webview_data">清除 WebView 数据</string>
+    <string name="clear_webview_data_summary">清除内置浏览器所有数据</string>
 </resources>

app/src/main/res/xml/pref_config_other.xml

@@ -145,6 +145,12 @@
             android:title="@string/clear_cache"
             app:iconSpaceReserved="false" />
 
+        <io.legado.app.lib.prefs.Preference
+            android:key="clearWebViewData"
+            android:summary="@string/clear_webview_data_summary"
+            android:title="@string/clear_webview_data"
+            app:iconSpaceReserved="false" />
+
         <io.legado.app.lib.prefs.Preference
             android:key="threadCount"
             android:title="@string/threads_num_title"