diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 166c55d5e..119452b38 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -232,16 +232,6 @@
     public static ** valueOf(java.lang.String);
 }
 
-
-# Keep all of Cronet API as it's used by the Cronet module.
--keep public class org.chromium.net.* {
-    !private *;
-    *;
-}
--keep class org.chromium.** {*;}
--keep class com.google.android.gms.net.PlayServicesCronetProvider{*;}
--keep class com.google.android.gms.net.GmsCoreCronetProvider{*;}
-
 ## 保证该私有变量不被混淆
 -keepclassmembers class com.google.android.exoplayer2.upstream.cache.CacheDataSource$Factory {
     #noinspection ShrinkerUnresolvedReference
@@ -250,3 +240,153 @@
 
 ## 对外提供api
 -keep class io.legado.app.api.ReturnData{*;}
+
+
+#-------------------Cronet------------------------------------
+# Contains flags that can be safely shared with Cronet, and thus would be
+# appropriate for third-party apps to include.
+
+# Keep all annotation related attributes that can affect runtime
+-keepattributes RuntimeVisible*Annotations
+-keepattributes AnnotationDefault
+
+# Keep the annotations, because if we don't, the ProGuard rules that use them
+# will not be respected. These classes then show up in our final dex, which we
+# do not want - see crbug.com/628226.
+-keep @interface org.chromium.base.annotations.AccessedByNative
+-keep @interface org.chromium.base.annotations.CalledByNative
+-keep @interface org.chromium.base.annotations.CalledByNativeUnchecked
+-keep @interface org.chromium.base.annotations.DoNotInline
+-keep @interface org.chromium.base.annotations.UsedByReflection
+-keep @interface org.chromium.base.annotations.IdentifierNameString
+
+# Android support library annotations will get converted to androidx ones
+# which we want to keep.
+-keep @interface androidx.annotation.Keep
+-keep @androidx.annotation.Keep class *
+-keepclasseswithmembers,allowaccessmodification class * {
+  @androidx.annotation.Keep <fields>;
+}
+-keepclasseswithmembers,allowaccessmodification class * {
+  @androidx.annotation.Keep <methods>;
+}
+
+# Keeps for class level annotations.
+-keep,allowaccessmodification @org.chromium.base.annotations.UsedByReflection class ** {}
+
+# Keeps for method level annotations.
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.chromium.base.annotations.AccessedByNative <fields>;
+}
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class ** {
+  @org.chromium.base.annotations.CalledByNative <methods>;
+}
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class ** {
+  @org.chromium.base.annotations.CalledByNativeUnchecked <methods>;
+}
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.chromium.base.annotations.UsedByReflection <methods>;
+}
+-keepclasseswithmembers,allowaccessmodification class ** {
+  @org.chromium.base.annotations.UsedByReflection <fields>;
+}
+# Even unused methods kept due to explicit jni registration:
+# https://crbug.com/688465.
+-keepclasseswithmembers,includedescriptorclasses,allowaccessmodification class !org.chromium.base.library_loader.**,** {
+  native <methods>;
+}
+-keepclasseswithmembernames,includedescriptorclasses,allowaccessmodification class org.chromium.base.library_loader.** {
+  native <methods>;
+}
+
+# Use assumevalues block instead of assumenosideeffects block because Google3 proguard cannot parse
+# assumenosideeffects blocks which overwrite return value.
+-assumevalues class org.chromium.base.Log {
+  static boolean isDebug() return false;
+}
+
+# Never inline classes, methods, or fields with this annotation, but allow
+# shrinking and obfuscation.
+# Relevant to fields when they are needed to store strong references to objects
+# that are held as weak references by native code.
+-if @org.chromium.base.annotations.DoNotInline class * {
+    *** *(...);
+}
+-keep,allowobfuscation,allowaccessmodification class <1> {
+    *** <2>(...);
+}
+-keepclassmembers,allowobfuscation,allowaccessmodification class * {
+   @org.chromium.base.annotations.DoNotInline <methods>;
+}
+-keepclassmembers,allowobfuscation,allowaccessmodification class * {
+   @org.chromium.base.annotations.DoNotInline <fields>;
+}
+
+# Never merge classes horizontally or vertically with this annotation.
+# Relevant to classes being used as a key in maps or sets.
+-keep,allowaccessmodification,allowobfuscation,allowshrinking @org.chromium.base.annotations.DoNotClassMerge class *
+
+# Keep all CREATOR fields within Parcelable that are kept.
+-keepclassmembers class org.chromium.** implements android.os.Parcelable {
+  public static *** CREATOR;
+}
+
+# Don't obfuscate Parcelables as they might be marshalled outside Chrome.
+# If we annotated all Parcelables that get put into Bundles other than
+# for saveInstanceState (e.g. PendingIntents), then we could actually keep the
+# names of just those ones. For now, we'll just keep them all.
+-keepnames,allowaccessmodification class org.chromium.** implements android.os.Parcelable {}
+
+# Keep all enum values and valueOf methods. See
+# http://proguard.sourceforge.net/index.html#manual/examples.html
+# for the reason for this. Also, see http://crbug.com/248037.
+-keepclassmembers enum org.chromium.** {
+    public static **[] values();
+}
+
+# Mark members annotated with IdentifierNameString as identifier name strings
+-identifiernamestring class * {
+    @org.chromium.base.annotations.IdentifierNameString *;
+}
+
+# -identifiernamestring doesn't keep the module impl around, we have to
+# explicitly keep it.
+-if @org.chromium.components.module_installer.builder.ModuleInterface interface *
+-keep,allowobfuscation,allowaccessmodification class * extends <1> {
+  <init>();
+}
+# Proguard config for apps that depend on cronet_impl_native_java.jar.
+
+# This constructor is called using the reflection from Cronet API (cronet_api.jar).
+-keep class * extends org.chromium.net.CronetProvider{
+    public <init>(android.content.Context);
+}
+
+# Suppress unnecessary warnings.
+-dontnote org.chromium.net.ProxyChangeListener$ProxyReceiver
+-dontnote org.chromium.net.AndroidKeyStore
+# Needs 'void setTextAppearance(int)' (API level 23).
+-dontwarn org.chromium.base.ApiCompatibilityUtils
+# Needs 'boolean onSearchRequested(android.view.SearchEvent)' (API level 23).
+-dontwarn org.chromium.base.WindowCallbackWrapper
+
+# Generated for chrome apk and not included into cronet.
+-dontwarn org.chromium.base.multidex.ChromiumMultiDexInstaller
+-dontwarn org.chromium.base.library_loader.LibraryLoader
+-dontwarn org.chromium.base.SysUtils
+-dontwarn org.chromium.build.NativeLibraries
+
+# Objects of this type are passed around by native code, but the class
+# is never used directly by native code. Since the class is not loaded, it does
+# not need to be preserved as an entry point.
+-dontnote org.chromium.net.UrlRequest$ResponseHeadersMap
+# https://android.googlesource.com/platform/sdk/+/marshmallow-mr1-release/files/proguard-android.txt#54
+-dontwarn android.support.**
+
+# This class should be explicitly kept to avoid failure if
+# class/merging/horizontal proguard optimization is enabled.
+-keep class org.chromium.base.CollectionUtil
+#-------------------Cronet------------------------------------
+
+
+