java2cpp | Translator java code to C code | Generator Utils library
kandi X-RAY | java2cpp Summary
kandi X-RAY | java2cpp Summary
Translator java code to C++ code.
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- Initialize the translator class .
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QUESTION
I have an ArrayList of float arrays as ArrayList
which I want to map to C++ Vector>
in JniWrapper.
I followed this link:
"Returning an arraylist of string from Native java to JNI"
and made few changes to the code as per my requirement.
...ANSWER
Answered 2019-Oct-18 at 16:39the type of result is: vector>
which is passed by reference.
However you emplace_back
a const float*
:
QUESTION
I am using JNI in an Android Studio project I am working on. Currently, I have a C++ library that looks similar to this.
...ANSWER
Answered 2018-Mar-25 at 10:58You are 100% right, some JNI values beg to be cached and reused. Class references and method IDs are good examples. Please remember that FindClass() returns a local reference, so you need NewGlobalRef() for each class you keep in cache.
Android Studio does not help us with this setup, and I am not aware of reliable tools that can do such refactoring for us. You can learn good practices from open source code, e.g. from WebRTC JNI wrapper or from Spotify JNI helpers.
Android Studio can only keep track of the native methods, not of the cached objects, conversions, etc.
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