仓库中添加内置的demo

demo/native/engine/android/instantapp/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in E:\developSoftware\Android\SDK/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Proguard Cocos2d-x-lite for release
+-keep public class com.cocos.** { *; }
+-dontwarn com.cocos.**
+
+# Proguard Apache HTTP for release
+-keep class org.apache.http.** { *; }
+-dontwarn org.apache.http.**
+
+# Proguard okhttp for release
+-keep class okhttp3.** { *; }
+-dontwarn okhttp3.**
+
+-keep class okio.** { *; }
+-dontwarn okio.**
+
+# Proguard Android Webivew for release. you can comment if you are not using a webview
+-keep public class android.net.http.SslError
+-keep public class android.webkit.WebViewClient
+
+-keep public class com.google.** { *; }
+
+-dontwarn android.webkit.WebView
+-dontwarn android.net.http.SslError
+-dontwarn android.webkit.WebViewClient
+
+# This is generated automatically by the Android Gradle plugin.
+-dontwarn android.hardware.BatteryState
+-dontwarn android.hardware.lights.Light
+-dontwarn android.hardware.lights.LightState$Builder
+-dontwarn android.hardware.lights.LightState
+-dontwarn android.hardware.lights.LightsManager$LightsSession
+-dontwarn android.hardware.lights.LightsManager
+-dontwarn android.hardware.lights.LightsRequest$Builder
+-dontwarn android.hardware.lights.LightsRequest
+-dontwarn android.net.ssl.SSLSockets
+-dontwarn android.os.VibratorManager