Fix Android build compatibility by upgrading to API 35 and Java 21

- Updated android/variables.gradle: compileSdkVersion and targetSdkVersion 34 → 35
- Updated .github/workflows/build-android.yml: api-level and build-tools 34 → 35
- Capacitor automatically updated Java compatibility to VERSION_21 in capacitor.build.gradle

This resolves the "VANILLA_ICE_CREAM constant not found" error by using Android API 35 which includes the Build.VERSION_CODES.VANILLA_ICE_CREAM constant required by Capacitor Android 7.4.2.

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

.github/workflows/build-android.yml

@@ -86,8 +86,8 @@ jobs:
     - name: Setup Android SDK
       uses: android-actions/setup-android@v3
       with:
-        api-level: 34
-        build-tools: 34.0.0
+        api-level: 35
+        build-tools: 35.0.0
 
     - name: Cache Gradle packages
       uses: actions/cache@v4

android/app/capacitor.build.gradle

@@ -2,8 +2,8 @@
 
 android {
   compileOptions {
-      sourceCompatibility JavaVersion.VERSION_17
-      targetCompatibility JavaVersion.VERSION_17
+      sourceCompatibility JavaVersion.VERSION_21
+      targetCompatibility JavaVersion.VERSION_21
   }
 }
 

android/variables.gradle

@@ -1,7 +1,7 @@
 ext {
     minSdkVersion = 22
-    compileSdkVersion = 34
-    targetSdkVersion = 34
+    compileSdkVersion = 35
+    targetSdkVersion = 35
     androidxActivityVersion = '1.8.0'
     androidxAppCompatVersion = '1.6.1'
     androidxCoordinatorLayoutVersion = '1.2.0'