I want to call an Android Java method using JNI in Qt. There is a weird "Method Signature" parameter that I cannot understand. What's this and how should I set it?
In examples it's something like (II)I
or (I)I
. What does it mean?
For example:
jint max = QAndroidJniObject::callStaticMethod<jint>("java/lang/Math", "max", "(II)I", a, b);
It is all explained in the docs. http://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/types.html
Your
(II)I
is a method taking two integers as arguments and returning an int. E.g.int m(int i, int j)
.A method
void print(String message)
would be(Ljava/lang/String;)