djinni is a tool by the Dropbox team to simplify cross platform development for mobile devices. Typical usage is a c++ core library which interfaces with native Objective-C or Java code for iOS and Android devices.
Questions tagged [djinni]
38 questions
6
votes
1 answer
How to define const getters for djinni?
I define a C++ interface with djinni:
member = interface +c {
get_id(): string;
get_name(): string;
}
My inherited implementation uses const getters, i.e.
class MyMemeber: public Member {
private:
string id;
string name;
…
Alex Cohn
- 56,089
- 9
- 113
- 307
5
votes
0 answers
Asio (non-boost) with Android NDK
I want to use the non-boost asio (http://think-async.com/) in my project. The project is written in C++, and I use dropbox/djinni to generate the wrappers to Android and iOS. In native C++ asio works fine without includeing boost. But I stucked at…
Horv
- 154
- 1
- 9
4
votes
1 answer
djinni - pointers and circular references between C++ and swift/objective C/java
I have two djinni interfaces, one to be implemented in Swift/objective C/java SwiftObj and one to be implemented in C++ CPPObj.
SwiftObj = interface +o +j {
someSwiftMethod();
}
CPPObj = interface +c {
static create(swiftObj: SwiftObj):…
Martin Massera
- 1,718
- 1
- 21
- 47
4
votes
1 answer
Dropbox Djinni - Java Interface vs Class Extension
Is there a way to define a Java/Obj-C interface in djinni such that it can be implemented in Java instead of extended. I have run into issues with multiple extension limitations. Though there are work around I would like to know if this is possible.…
running-codebase
- 998
- 2
- 12
- 17
4
votes
1 answer
Dropbox Djinni - Interface Inheritance
Is there a way to inherit / extend interfaces in Djinni's DSL?
For example:
parent = interface +c {
parentMethod();
}
child1 = interface +c {
childMethod1();
}
child2 = interface +c {
childMethod2();
}
I want to inherit child1 and child2…
Benny
- 133
- 8
3
votes
1 answer
Djinni: how to deal with wannabe overloaded methods?
I've recently used djinni in a medium sized mobile project.
It's really a useful tool that helped us easing and speeding up the development process.
More than once it would have been helpful overloading a method.
This is not possible in djinni (I…
skypjack
- 49,335
- 19
- 95
- 187
3
votes
1 answer
Djinni: can I define the interfaces as implementable in all the environments?
Consider the documentation of Djinni.
It says that:
# This interface will be implemented in C++ and can be called from any language.
my_cpp_interface = interface +c {
# ...
}
Also, it says that:
# This interface will be implemented in Java and…
skypjack
- 49,335
- 19
- 95
- 187
2
votes
1 answer
Alternative to interface inheritance with Djinni
I am using Djinni to share some big c++ codebase among android and ios. One of the various components (let's call it Foo!!!) has a different implementation on android and ios. Foo is an interface, which the c++ code uses without the need of knowing…
athos
- 1,281
- 3
- 14
- 24
2
votes
1 answer
Java Inheritance in Djinni supported?
Does Djinni (dropbox) supports inheritance ? Following this
description and example. I have tried to use inheritance but it gives a syntax error. I am not sure if that's all required or am i missing something.
Parent Class:
Explorer = interface +c…
Ajji
- 3,068
- 2
- 30
- 31
2
votes
1 answer
Library not found for -ljson11 but -lsqlite 3 is found
I'm trying to implement this tutorial with the addition that I want to include the json11 C++ library.
I followed the same process for both, downloaded the repo from:
https://github.com/libmx3/mx3, added them to the /deps/ folder of my project, and…
Mknsri
- 87
- 9
2
votes
2 answers
how to link libcurl in dropbox djinni project
i need libcurl to do something in dropbox djinni mx3 project;
But when i create libmx3_android.so then show this error message:
"undefined reference to 'curl_easy_init'"......
Because i can not link libcurl.a to this project.
for android jni, i find…
ttycode
- 21
- 1
2
votes
1 answer
Android NDK linking OpenSSL
I want to use openssl to my android ndk project.
But when I build it, I got these errors:
Error:(38) undefined reference to SSL_library_init'
Error:(39) undefined reference toSSL_load_error_strings'
Error:(40) undefined reference to…
Horv
- 154
- 1
- 9
1
vote
1 answer
Passing large buffers from C++ to Java on Android
I'm trying to figure out the best way to pass large amounts (20Kb - 2MB) of data from C++ to Java on Android. I'm using Djinni to generate as much of the bridge code as possible. The options I'm considering are:
Use AHardwareBuffer - looks like an…
Josh A.
- 374
- 3
- 15
1
vote
1 answer
How to get rid of Djinni generated unnecessary function - ToString (in Java)/Description (in Objc)?
I am trying to understand the impact of Djinni generated function on binary-size of my cross-platform project. My project does not have a need for these generated ToString/description functions. Is there a way to get rid of them?
vandit jain
- 31
- 4
1
vote
2 answers
Djinni call a javacallback from C++
I'm trying to call from C++ into java. I've understood the cux of this answer but I feel I'm not able to achieve the last mile. What classes and methods do I have to use to call Java from C++?
Also not enough points to post comments on there. I…
rstr1112
- 308
- 4
- 13