Android build cmake in gradle

extension/android/executorch_android/build.gradle

@@ -20,23 +20,35 @@ android {
         minSdk = 23
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
-    }
 
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
+        externalNativeBuild {
+            cmake {
+                abiFilters "arm64-v8a", "x86_64"
+                targets "executorch_jni"
+                arguments "-DBUILD_TESTING=OFF", "-DCMAKE_POLICY_VERSION_MINIMUM=3.24", "-DEXECUTORCH_BUILD_XNNPACK=ON", "-DEXECUTORCH_XNNPACK_SHARED_WORKSPACE=ON", "-DEXECUTORCH_BUILD_EXTENSION_DATA_LOADER=ON", "-DEXECUTORCH_BUILD_EXTENSION_MODULE=ON", "-DEXECUTORCH_BUILD_EXTENSION_FLAT_TENSOR=ON", "-DEXECUTORCH_BUILD_EXTENSION_RUNNER_UTIL=ON", "-DEXECUTORCH_BUILD_EXTENSION_TENSOR=ON", "-DEXECUTORCH_BUILD_KERNELS_OPTIMIZED=ON", "-DEXECUTORCH_BUILD_KERNELS_QUANTIZED=ON"
+            }
+        }
+
+        compileOptions {
+            sourceCompatibility = JavaVersion.VERSION_1_8
+            targetCompatibility = JavaVersion.VERSION_1_8
+        }
 
-    sourceSets {
-        main {
-            jniLibs.srcDirs = ['../../../cmake-out-android-so/']
+        sourceSets {
+            androidTest {
+                resources.srcDirs += ['src/androidTest/resources']
+            }
         }
-        androidTest {
-            resources.srcDirs += [ 'src/androidTest/resources' ]
+
+        kotlinOptions {
+            jvmTarget = "1.8"
         }
     }
-    kotlinOptions {
-        jvmTarget = "1.8"
+
+    externalNativeBuild {
+        cmake {
+            path "../../../CMakeLists.txt"
+        }
     }
 }