export face detect as library project & rename jni library

opencv_face_detect/.gitignore

@@ -0,0 +1 @@
+/build

app/CMakeLists.txt → opencv_face_detect/CMakeLists.txt

@@ -1,78 +1,78 @@
-# For more information about using CMake with Android Studio, read the
-# documentation: https://d.android.com/studio/projects/add-native-code.html
-
-# Sets the minimum version of CMake required to build the native library.
-
-cmake_minimum_required(VERSION 3.4.1)
-
-# Creates and names a library, sets it as either STATIC
-# or SHARED, and provides the relative paths to its source code.
-# You can define multiple libraries, and CMake builds them for you.
-# Gradle automatically packages shared libraries with your APK.
-
-# 设置native目录
-set(NATIVE_DIR ${CMAKE_SOURCE_DIR}/src/main/cpp)
-
-# 设置dlib
-include(${NATIVE_DIR}/dlib/cmake)
-
-# 设置opencv include文件夹
-include_directories(${NATIVE_DIR}/opencv/jni/include)
-
-# 设置opencv so库
-add_library(
-        libopencv_java3
-        SHARED
-        IMPORTED)
-
-set_target_properties(
-        libopencv_java3
-        PROPERTIES
-        IMPORTED_LOCATION
-        ${NATIVE_DIR}/opencv/libs/${ANDROID_ABI}/libopencv_java3.so)
-
-# 将jni_common目录中所有文件名，存至SRC_LIST中
-AUX_SOURCE_DIRECTORY(${NATIVE_DIR}/jni_common SRC_LIST)
-
-add_library( # Sets the name of the library.
-        native-lib
-
-        # Sets the library as a shared library.
-        SHARED
-
-        # Provides a relative path to your source file(s).
-
-        ${SRC_LIST}
-        src/main/cpp/face_detector.h
-        src/main/cpp/face_detector.cpp
-        src/main/cpp/native-lib.cpp)
-
-# Searches for a specified prebuilt library and stores the path as a
-# variable. Because CMake includes system libraries in the search path by
-# default, you only need to specify the name of the public NDK library
-# you want to add. CMake verifies that the library exists before
-# completing its build.
-
-find_library( # Sets the name of the path variable.
-        log-lib
-
-        # Specifies the name of the NDK library that
-        # you want CMake to locate.
-        log)
-
-# Specifies libraries CMake should link to your target library. You
-# can link multiple libraries, such as libraries you define in this
-# build script, prebuilt third-party libraries, or system libraries.
-
-target_link_libraries( # Specifies the target library.
-        native-lib
-        dlib
-        libopencv_java3
-        jnigraphics
-        # Links the target library to the log library
-        # included in the NDK.
-        ${log-lib})
-
-# 指定release编译选项
-set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -s -O3 -Wall")
+# For more information about using CMake with Android Studio, read the
+# documentation: https://d.android.com/studio/projects/add-native-code.html
+
+# Sets the minimum version of CMake required to build the native library.
+
+cmake_minimum_required(VERSION 3.4.1)
+
+# Creates and names a library, sets it as either STATIC
+# or SHARED, and provides the relative paths to its source code.
+# You can define multiple libraries, and CMake builds them for you.
+# Gradle automatically packages shared libraries with your APK.
+
+# 设置native目录
+set(NATIVE_DIR ${CMAKE_SOURCE_DIR}/src/main/cpp)
+
+# 设置dlib
+include(${NATIVE_DIR}/dlib/cmake)
+
+# 设置opencv include文件夹
+include_directories(${NATIVE_DIR}/opencv/jni/include)
+
+# 设置opencv so库
+add_library(
+        libopencv_java3
+        SHARED
+        IMPORTED)
+
+set_target_properties(
+        libopencv_java3
+        PROPERTIES
+        IMPORTED_LOCATION
+        ${NATIVE_DIR}/opencv/libs/${ANDROID_ABI}/libopencv_java3.so)
+
+# 将jni_common目录中所有文件名，存至SRC_LIST中
+AUX_SOURCE_DIRECTORY(${NATIVE_DIR}/jni_common SRC_LIST)
+
+add_library( # Sets the name of the library.
+        facedetec-lib
+
+        # Sets the library as a shared library.
+        SHARED
+
+        # Provides a relative path to your source file(s).
+
+        ${SRC_LIST}
+        src/main/cpp/face_detector.h
+        src/main/cpp/face_detector.cpp
+        src/main/cpp/native-lib.cpp)
+
+# Searches for a specified prebuilt library and stores the path as a
+# variable. Because CMake includes system libraries in the search path by
+# default, you only need to specify the name of the public NDK library
+# you want to add. CMake verifies that the library exists before
+# completing its build.
+
+find_library( # Sets the name of the path variable.
+        log-lib
+
+        # Specifies the name of the NDK library that
+        # you want CMake to locate.
+        log)
+
+# Specifies libraries CMake should link to your target library. You
+# can link multiple libraries, such as libraries you define in this
+# build script, prebuilt third-party libraries, or system libraries.
+
+target_link_libraries( # Specifies the target library.
+        facedetec-lib
+        dlib
+        libopencv_java3
+        jnigraphics
+        # Links the target library to the log library
+        # included in the NDK.
+        ${log-lib})
+
+# 指定release编译选项
+set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -s -O3 -Wall")
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -s -O3 -Wall")

opencv_face_detect/build.gradle

@@ -0,0 +1,43 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 32
+    //TODO the NDK must pass build must set spec ndkVersion , can not over 21.X.XXXXXXX
+    ndkVersion  "21.4.7075529"//20.0.5594570 21.0.6113669  21.1.6352462  21.4.7075529 21.4.7075529 //Ref : https://developer.android.com/studio/projects/install-ndk
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 32
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
+        externalNativeBuild {
+            cmake {
+                arguments "-DCMAKE_BUILD_TYPE=Release"
+                cppFlags "-std=c++11 -frtti -fexceptions"
+            }
+        }
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    externalNativeBuild {
+        cmake {
+            path "CMakeLists.txt"
+        }
+    }
+    sourceSets {
+        main {
+        }
+    }
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.annotation:annotation:1.5.0'
+}