Rebuild from scratch: Legacy Architecture for Android 7.1.2 (Java 8, AGP 7, WireGuard 2021)

app/build.gradle

@@ -10,27 +10,34 @@ android {
         applicationId "com.cbcren.vpn"
         minSdkVersion 21
         targetSdkVersion 33
-        versionCode 3
-        versionName "1.2-legacy"
+        versionCode 1
+        versionName "1.0-legacy"
+        
         multiDexEnabled true
+        
+        // Forzar 32 bits (ARMv7)
         ndk {
-            abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86'
+            abiFilters 'armeabi-v7a'
         }
     }
     
+    // Soporte para Java 8 (Desugaring)
     compileOptions {
-        // Java 11 es el estándar actual, Android 7 lo soporta con D8
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        coreLibraryDesugaringEnabled true
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 }
 
 dependencies {
-    // Desugaring para soportar Java moderno en Android viejo
+    // Desugaring (Magia para que código nuevo corra en Android viejo)
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
+    // UI Básica (Versiones estables)
     implementation 'androidx.appcompat:appcompat:1.4.0'
     implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    
+    // WireGuard (Versión 2021, probada en Android 5+)
     implementation 'com.wireguard.android:tunnel:1.0.20211029'
-    implementation 'androidx.multidex:multidex:2.0.1'
 }

app/build/generated/source/buildConfig/debug/com/cbcren/vpn/BuildConfig.java

@@ -0,0 +1,12 @@
+/**
+ * Automatically generated file. DO NOT MODIFY
+ */
+package com.cbcren.vpn;
+
+public final class BuildConfig {
+  public static final boolean DEBUG = Boolean.parseBoolean("true");
+  public static final String APPLICATION_ID = "com.cbcren.vpn";
+  public static final String BUILD_TYPE = "debug";
+  public static final int VERSION_CODE = 1;
+  public static final String VERSION_NAME = "1.0-legacy";
+}

app/build/intermediates/app_metadata/debug/app-metadata.properties

@@ -1,2 +1,2 @@
 appMetadataVersion=1.1
-androidGradlePluginVersion=8.0.0
+androidGradlePluginVersion=7.4.2

app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties

@@ -1,4 +1,2 @@
-#Mon Feb 09 22:46:31 CET 2026
-com.cbcren.vpn.app-main-26\:/drawable/ic_launcher_foreground.xml=/home/ren/androidtv/app/build/intermediates/merged_res/debug/drawable_ic_launcher_foreground.xml.flat
-com.cbcren.vpn.app-main-26\:/layout/activity_main.xml=/home/ren/androidtv/app/build/intermediates/merged_res/debug/layout_activity_main.xml.flat
-com.cbcren.vpn.app-main-26\:/mipmap-anydpi-v26/ic_launcher.xml=/home/ren/androidtv/app/build/intermediates/merged_res/debug/mipmap-anydpi-v26_ic_launcher.xml.flat
+#Mon Feb 09 23:46:22 CET 2026
+com.cbcren.vpn.app-main-27\:/layout/activity_main.xml=/home/ren/androidtv/app/build/intermediates/merged_res/debug/layout_activity_main.xml.flat

app/build/intermediates/incremental/debug/packageDebugResources/compile-file-map.properties

@@ -1,4 +0,0 @@
-#Mon Feb 09 22:46:31 CET 2026
-com.cbcren.vpn.app-main-5\:/drawable/ic_launcher_foreground.xml=/home/ren/androidtv/app/build/intermediates/packaged_res/debug/drawable/ic_launcher_foreground.xml
-com.cbcren.vpn.app-main-5\:/layout/activity_main.xml=/home/ren/androidtv/app/build/intermediates/packaged_res/debug/layout/activity_main.xml
-com.cbcren.vpn.app-main-5\:/mipmap-anydpi-v26/ic_launcher.xml=/home/ren/androidtv/app/build/intermediates/packaged_res/debug/mipmap-anydpi-v26/ic_launcher.xml

app/build/intermediates/incremental/debug/packageDebugResources/merger.xml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/main/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main" generated-set="main$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/main/res"><file name="activity_main" path="/home/ren/androidtv/app/src/main/res/layout/activity_main.xml" qualifiers="" type="layout"/><file name="ic_launcher" path="/home/ren/androidtv/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml" qualifiers="anydpi-v26" type="mipmap"/><file name="ic_launcher_foreground" path="/home/ren/androidtv/app/src/main/res/drawable/ic_launcher_foreground.xml" qualifiers="" type="drawable"/></source></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/debug/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug" generated-set="debug$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/debug/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="generated$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="generated" generated-set="generated$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/build/generated/res/resValues/debug"/></dataSet><mergedItems/></merger>

app/build/intermediates/incremental/mergeDebugAssets/merger.xml

@@ -1,2 +1,2 @@
 <?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/main/assets"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/debug/assets"/></dataSet><dataSet config="generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/build/intermediates/shader_assets/debug/out"/></dataSet></merger>
+<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/main/assets"/><source path="/home/ren/androidtv/app/build/intermediates/shader_assets/debug/out"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/home/ren/androidtv/app/src/debug/assets"/></dataSet></merger>

app/build/intermediates/merged_manifest/debug/AndroidManifest.xml

@@ -1,15 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.cbcren.vpn"
-    android:versionCode="3"
-    android:versionName="1.2-legacy" >
+    android:versionCode="1"
+    android:versionName="1.0-legacy" >
 
     <uses-sdk
         android:minSdkVersion="21"
         android:targetSdkVersion="33" />
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
+    <!-- Soporte TV -->
     <uses-feature
         android:name="android.software.leanback"
         android:required="false" />
@@ -20,8 +22,8 @@
     <application
         android:appComponentFactory="androidx.core.app.CoreComponentFactory"
         android:debuggable="true"
-        android:label="Xuper VPN"
-        android:theme="@style/Theme.MaterialComponents.Light.NoActionBar" >
+        android:label="Xuper VPN Legacy"
+        android:theme="@style/Theme.AppCompat.Light.NoActionBar" >
         <activity
             android:name="com.cbcren.vpn.MainActivity"
             android:exported="true" >
@@ -33,7 +35,7 @@
             </intent-filter>
         </activity>
 
-        <!-- Parche para librería WireGuard antigua -->
+        <!-- Parche para servicio VPN en Android 12+ -->
         <service
             android:name="com.wireguard.android.backend.GoBackend$VpnService"
             android:exported="true"

app/build/intermediates/merged_manifests/debug/AndroidManifest.xml

@@ -1,15 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.cbcren.vpn"
-    android:versionCode="3"
-    android:versionName="1.2-legacy" >
+    android:versionCode="1"
+    android:versionName="1.0-legacy" >
 
     <uses-sdk
         android:minSdkVersion="21"
         android:targetSdkVersion="33" />
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
+    <!-- Soporte TV -->
     <uses-feature
         android:name="android.software.leanback"
         android:required="false" />
@@ -20,8 +22,8 @@
     <application
         android:appComponentFactory="androidx.core.app.CoreComponentFactory"
         android:debuggable="true"
-        android:label="Xuper VPN"
-        android:theme="@style/Theme.MaterialComponents.Light.NoActionBar" >
+        android:label="Xuper VPN Legacy"
+        android:theme="@style/Theme.AppCompat.Light.NoActionBar" >
         <activity
             android:name="com.cbcren.vpn.MainActivity"
             android:exported="true" >
@@ -33,7 +35,7 @@
             </intent-filter>
         </activity>
 
-        <!-- Parche para librería WireGuard antigua -->
+        <!-- Parche para servicio VPN en Android 12+ -->
         <service
             android:name="com.wireguard.android.backend.GoBackend$VpnService"
             android:exported="true"

app/build/intermediates/merged_manifests/debug/output-metadata.json

@@ -11,8 +11,8 @@
       "type": "SINGLE",
       "filters": [],
       "attributes": [],
-      "versionCode": 3,
-      "versionName": "1.2-legacy",
+      "versionCode": 1,
+      "versionName": "1.0-legacy",
       "outputFile": "AndroidManifest.xml"
     }
   ],