How use Qt static or dynamic library in native iOS Xcode project?

achernyy

Hello, everyone.
I have static/dinamic library compiled with Qt (I will try use template static/shared lib from Qt creator) and I need integrate this library to existing Xcode project.

Here is my Lib project

QT += qml network xml

TARGET = test_lib
TEMPLATE = lib

DEFINES += TEST_LIB_LIBRARY

DEFINES += QT_DEPRECATED_WARNINGS

SOURCES +=
test_lib.cpp

HEADERS +=
test_lib.h
test_lib_global.h

unix {
target.path = /usr/lib
INSTALLS += target
}
#####################################
test_lib.h

#ifndef TEST_LIB_H
#define TEST_LIB_H

#include "test_lib_global.h"

class TEST_LIBSHARED_EXPORT Test_lib
{

public:
Test_lib();

void testLib();

};

#endif // TEST_LIB_H

#######################################

test_lib.cpp

#include "test_lib.h"
#include <QDebug>

Test_lib::Test_lib()
{
qDebug() << "Test lib started";
}

void Test_lib::testLib()
{
qDebug() << "Test lib fired";
}

###############################

Xcode version 9, Qt 5.11.1
I will try to add:

Library Search Path in Xcode project (something like -L/Users/*******/Desktop/Qt/5.11.1/ios/lib)
Header Search Path in Xcode project (something like /Users/******/Desktop/Qt/5.11.1/ios/include)

But when I try to compile Xcode project I had error like this

Undefined symbols for architecture arm64:
"QArrayData::deallocate(QArrayData*, unsigned long, unsigned long)", referenced from:
QTypedArrayData<unsigned short>::deallocate(QArrayData*) in libtest_lib.a(test_lib.o)
"QString::fromUtf8_helper(char const*, int)", referenced from:
QString::fromUtf8(char const*, int) in libtest_lib.a(test_lib.o)
"QTextStream::operator<<(char)", referenced from:
QDebug::maybeSpace() in libtest_lib.a(test_lib.o)
"QTextStream::operator<<(QString const&)", referenced from:
QDebug::operator<<(char const*) in libtest_lib.a(test_lib.o)
"QMessageLogger::debug() const", referenced from:
Test_lib::Test_lib() in libtest_lib.a(test_lib.o)
Test_lib::testLib() in libtest_lib.a(test_lib.o)
"QDebug::~QDebug()", referenced from:
Test_lib::Test_lib() in libtest_lib.a(test_lib.o)
Test_lib::testLib() in libtest_lib.a(test_lib.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Please, can anybody help me or explain how to use Qt library in exist(native) Xcode project?????

SGaist

Hi and welcome to devnet,

Did you also tell Xcode to link against your library ?