You can try LOCAL_CFLAGS := -std=c++11, but note that not all C++11 APIs are available with the NDK’s gnustl. Full C++14 support is available with libc++ (APP_STL := c++_shared). The alternative is to implement it yourself. #include <string> #include <sstream> template <typename T> std::string to_string(T value) { std::ostringstream os ; os << value ; return … Read more
First off, if you’re worring about binary size, you don’t really need arm64-v8a, all those devices can run the armeabi-v7a binaries just fine. Only if you really need to cram the last extra performance out of it, it might be worthwhile. As for armeabi and ARMv6; Android itself doesn’t officially support it any longer, since … Read more
After looking around the net. The only working solution I found is supplied by Bambuser which ported ffmpeg to use in their android application. Code is here: http://bambuser.com/opensource Basically you copy the .so files to your jni/lib directory, along with any .h files you might need, create a JNI wrapper through javah, and it works. … Read more
Looking through the gradle plugin code, I found the following that helped me use both NDK and prebuilt native libraries: To simply Link in Prebuilt Native Libraries, just add an ndk section to your task. For instance, I added it below in productFlavors. The abiFilter is the folder name the libs are stored in. abiFilters … Read more
You could try something like this… FILE_LIST := $(wildcard $(LOCAL_PATH)/[DIRECTORY]/*.cpp) LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%) … Change [DIRECTORY] to the actual directory of the files. If they are in the same directory as your .mk file then remove that part. Create the FILE_LIST variable to find all of the .cpp files under the [DIRECTORY] directory. Then use … Read more
Got reply from boost community Yes. These platforms are not officially supported because no one has volunteered to run regression tests regularly for them. It is not possible for a Boost developer to test on all platforms. So developers depend on the test results of regression tests run by volunteers. For example, see http://beta.boost.org/development/tests/trunk/developer/summary.html If … Read more
If you have full control of values and enums, and they’re sequential, you can use the enum ordinal value: enum Heyo { FirstVal, SecondVal } …later int systemVal = [whatever]; Heyo enumVal = Heyo.values()[systemVal]; int againSystemVal = enumVal.ordinal();
NOTE: this is a bit old code. for the most updated one, check out the project page on github. jni/Android.mk LOCAL_PATH := $(call my-dir) #bitmap operations module include $(CLEAR_VARS) LOCAL_MODULE := JniBitmapOperations LOCAL_SRC_FILES := JniBitmapOperations.cpp LOCAL_LDLIBS := -llog LOCAL_LDFLAGS += -ljnigraphics include $(BUILD_SHARED_LIBRARY) APP_OPTIM := debug LOCAL_CFLAGS := -g #if you need to add more … Read more
OK, I’ve solved my issue, and the reason was very strange: the problem is in the first line ‘LOCAL_PATH := $(call my-dir)____’ It had several spaces in the end (I’ve replaced them with ‘_’). If you remove them everything works just fine.
If you have a native project with LOCAL_MODULE “libXYZ”, make sure to load it as System.loadLibrary(“XYZ”);