Init

native_opencv/android/build.gradle

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+group 'com.example.native_opencv'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.0.3'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    packagingOptions {
+        pickFirst 'lib/arm64-v8a/libopencv_java4.so'
+        pickFirst 'lib/armeabi-v7a/libopencv_java4.so'
+        pickFirst 'lib/x86/libopencv_java4.so'
+        pickFirst 'lib/x86_64/libopencv_java4.so'
+    }
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 24
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        externalNativeBuild {
+            cmake {
+                // Enabling exception, RTTI and setting C++ standard version
+                cppFlags '-frtti -fexceptions -std=c++11'
+
+                // Shared runtime for shared libraries
+                arguments "-DANDROID_STL=c++_shared"
+            }
+        }
+    }
+
+    externalNativeBuild {
+        cmake {
+            path "CMakeLists.txt"
+        }
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}
+
+dependencies {}