How to register C++ React Native module in Android
I have a C++ React Native module derived from facebook::xplat::module::CxxModule. It is working ok with iOS project but now I'm trying to figure out how to use it from Java. The only documentation I found is the comment in React Native codebase stating that:
NativeModules whose implementation is written in C++ must
not provide any Java code (so they can be reused on other platforms),
and instead should register themselves using
CxxModuleWrapper
My question is how to register C++ module in Java using CxxModuleWrapper
java
android c++ react-native asked Jun 10 '18 at 7:44
bjornd
17.5k44365
add a comment |
I have a C++ React Native module derived from facebook::xplat::module::CxxModule. It is working ok with iOS project but now I'm trying to figure out how to use it from Java. The only documentation I found is the comment in React Native codebase stating that:
NativeModules whose implementation is written in C++ must
not provide any Java code (so they can be reused on other platforms),
and instead should register themselves using
CxxModuleWrapper
My question is how to register C++ module in Java using CxxModuleWrapper
java
android c++ react-native asked Jun 10 '18 at 7:44
bjornd
17.5k44365
2
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited fromfacebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java
– bjornd
Jun 15 '18 at 16:38
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47
add a comment |
I have a C++ React Native module derived from facebook::xplat::module::CxxModule. It is working ok with iOS project but now I'm trying to figure out how to use it from Java. The only documentation I found is the comment in React Native codebase stating that:
NativeModules whose implementation is written in C++ must
not provide any Java code (so they can be reused on other platforms),
and instead should register themselves using
CxxModuleWrapper
My question is how to register C++ module in Java using CxxModuleWrapper
java
android c++ react-native asked Jun 10 '18 at 7:44
bjornd
17.5k44365
I have a C++ React Native module derived from facebook::xplat::module::CxxModule. It is working ok with iOS project but now I'm trying to figure out how to use it from Java. The only documentation I found is the comment in React Native codebase stating that:
NativeModules whose implementation is written in C++ must
not provide any Java code (so they can be reused on other platforms),
and instead should register themselves using
CxxModuleWrapper
My question is how to register C++ module in Java using CxxModuleWrapper
java
android c++ react-native java
android c++ react-native asked Jun 10 '18 at 7:44
bjornd
17.5k44365
asked Jun 10 '18 at 7:44
bjornd
17.5k44365
asked Jun 10 '18 at 7:44
bjornd
17.5k44365
asked Jun 10 '18 at 7:44
bjornd
17.5k44365
asked Jun 10 '18 at 7:44
bjornd
17.5k44365
17.5k44365
2
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited fromfacebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java
– bjornd
Jun 15 '18 at 16:38
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47
add a comment |
2
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited fromfacebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java
– bjornd
Jun 15 '18 at 16:38
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47
2
2
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited from
facebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java– bjornd
Jun 15 '18 at 16:38
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited from
facebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java– bjornd
Jun 15 '18 at 16:38
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47
add a comment |
1 Answer
1
active
oldest
votes
Please check this blog for detail: https://medium.com/@kudochien/how-to-write-a-react-native-cxxmodule-59073259f15d.
Snippet from the blog:
Export it from native
extern "C" HelloCxxModule* createHelloCxxModule() {
return new HelloCxxModule();
}
Register it in java
public final class HelloCxxPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
return Arrays.<NativeModule>asList(
// I have librnpackage-hellocxx.so the exported createHelloCxxModule() above.
CxxModuleWrapper.makeDso("rnpackage-hellocxx", "createHelloCxxModule")
);
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
}
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Please check this blog for detail: https://medium.com/@kudochien/how-to-write-a-react-native-cxxmodule-59073259f15d.
Snippet from the blog:
Export it from native
extern "C" HelloCxxModule* createHelloCxxModule() {
return new HelloCxxModule();
}
Register it in java
public final class HelloCxxPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
return Arrays.<NativeModule>asList(
// I have librnpackage-hellocxx.so the exported createHelloCxxModule() above.
CxxModuleWrapper.makeDso("rnpackage-hellocxx", "createHelloCxxModule")
);
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
}
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
add a comment |
Please check this blog for detail: https://medium.com/@kudochien/how-to-write-a-react-native-cxxmodule-59073259f15d.
Snippet from the blog:
Export it from native
extern "C" HelloCxxModule* createHelloCxxModule() {
return new HelloCxxModule();
}
Register it in java
public final class HelloCxxPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
return Arrays.<NativeModule>asList(
// I have librnpackage-hellocxx.so the exported createHelloCxxModule() above.
CxxModuleWrapper.makeDso("rnpackage-hellocxx", "createHelloCxxModule")
);
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
}
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
add a comment |
Please check this blog for detail: https://medium.com/@kudochien/how-to-write-a-react-native-cxxmodule-59073259f15d.
Snippet from the blog:
Export it from native
extern "C" HelloCxxModule* createHelloCxxModule() {
return new HelloCxxModule();
}
Register it in java
public final class HelloCxxPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
return Arrays.<NativeModule>asList(
// I have librnpackage-hellocxx.so the exported createHelloCxxModule() above.
CxxModuleWrapper.makeDso("rnpackage-hellocxx", "createHelloCxxModule")
);
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
}
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
Please check this blog for detail: https://medium.com/@kudochien/how-to-write-a-react-native-cxxmodule-59073259f15d.
Snippet from the blog:
Export it from native
extern "C" HelloCxxModule* createHelloCxxModule() {
return new HelloCxxModule();
}
Register it in java
public final class HelloCxxPackage implements ReactPackage {
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
return Arrays.<NativeModule>asList(
// I have librnpackage-hellocxx.so the exported createHelloCxxModule() above.
CxxModuleWrapper.makeDso("rnpackage-hellocxx", "createHelloCxxModule")
);
}
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
}
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
edited Nov 21 '18 at 3:53
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
answered Nov 21 '18 at 2:44
Geng Jiawen
4,2252627
4,2252627
add a comment |
add a comment |
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2
"Your question really is how to call C++ from javascript without calling java I suspect (if possible)?" - No, I can just use JNI and call any C++ library easily, the problem here is that I will need to do all data conversion and will have to implement all the callbacks and promises to communicate with JS side. This could be avoided using C++ module inherited from
facebook::xplat::module::CxxModule. I have such a module and I can use it from Objective C but not from Java– bjornd
Jun 15 '18 at 16:38
Can you use some tool to generate bindings, like this
– Raviprakash
Jun 18 '18 at 17:47