android: allow to build & run examples without Android OpenCV Manager

CMakeLists.txt

@@ -216,6 +216,7 @@ OCV_OPTION(ENABLE_NOISY_WARNINGS      "Show all warnings even if they are too no
 OCV_OPTION(OPENCV_WARNINGS_ARE_ERRORS "Treat warnings as errors"                                 OFF )
 OCV_OPTION(ENABLE_WINRT_MODE          "Build with Windows Runtime support"                       OFF  IF WIN32 )
 OCV_OPTION(ENABLE_WINRT_MODE_NATIVE   "Build with Windows Runtime native C++ support"            OFF  IF WIN32 )
+OCV_OPTION(ANDROID_EXAMPLES_WITH_LIBS "Build binaries of Android examples with native libraries" OFF  IF ANDROID )
 
 
 # ----------------------------------------------------------------------------

cmake/OpenCVDetectAndroidSDK.cmake

@@ -335,6 +335,16 @@ macro(add_android_project target path)
       add_dependencies(${target} ${android_proj_native_deps})
     endif()
 
+    if(ANDROID_EXAMPLES_WITH_LIBS)
+      add_custom_target(
+        ${target}_copy_libs
+        COMMAND ${CMAKE_COMMAND} -DSRC_DIR=${OpenCV_BINARY_DIR}/lib -DDST_DIR=${android_proj_bin_dir}/libs -P ${OpenCV_SOURCE_DIR}/cmake/copyAndroidLibs.cmake
+        WORKING_DIRECTORY ${OpenCV_BINARY_DIR}/lib
+        DEPENDS "${OpenCV_BINARY_DIR}/bin/classes.jar.dephelper" opencv_java
+      )
+      add_dependencies(${target} ${target}_copy_libs)
+    endif()
+
     if(__android_project_chain)
       add_dependencies(${target} ${__android_project_chain})
     endif()

cmake/copyAndroidLibs.cmake

@@ -0,0 +1,8 @@
+# helper file for Android samples build
+
+file(GLOB_RECURSE LIBS RELATIVE ${SRC_DIR} "*.so")
+
+foreach(l ${LIBS})
+  message(STATUS "  Copying: ${l} ...")
+  execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different ${SRC_DIR}/${l} ${DST_DIR}/${l})
+endforeach()

samples/android/15-puzzle/src/org/opencv/samples/puzzle15/Puzzle15Activity.java

@@ -76,7 +76,13 @@ public class Puzzle15Activity extends Activity implements CvCameraViewListener,
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/camera-calibration/src/org/opencv/samples/cameracalibration/CameraCalibrationActivity.java

@@ -92,7 +92,13 @@ public class CameraCalibrationActivity extends Activity implements CvCameraViewL
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionActivity.java

@@ -88,7 +88,13 @@ public class ColorBlobDetectionActivity extends Activity implements OnTouchListe
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/face-detection/src/org/opencv/samples/facedetect/FdActivity.java

@@ -139,7 +139,13 @@ public class FdActivity extends Activity implements CvCameraViewListener2 {
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsActivity.java

@@ -111,7 +111,13 @@ public class ImageManipulationsActivity extends Activity implements CvCameraView
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/native-activity/src/org/opencv/samples/NativeActivity/CvNativeActivity.java

@@ -39,6 +39,12 @@ public class CvNativeActivity extends Activity {
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 }

samples/android/tutorial-1-camerapreview/src/org/opencv/samples/tutorial1/Tutorial1Activity.java

@@ -76,7 +76,13 @@ public class Tutorial1Activity extends Activity implements CvCameraViewListener2
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/tutorial-2-mixedprocessing/src/org/opencv/samples/tutorial2/Tutorial2Activity.java

@@ -97,7 +97,13 @@ public class Tutorial2Activity extends Activity implements CvCameraViewListener2
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {

samples/android/tutorial-3-cameracontrol/src/org/opencv/samples/tutorial3/Tutorial3Activity.java

@@ -88,7 +88,13 @@ public class Tutorial3Activity extends Activity implements CvCameraViewListener2
     public void onResume()
     {
         super.onResume();
+        if (!OpenCVLoader.initDebug()) {
+            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
             OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);
+        } else {
+            Log.d(TAG, "OpenCV library found inside package. Using it!");
+            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
+        }
     }
 
     public void onDestroy() {