QtAndroidExtras Source: How to compile .java file to .class file?

[Ibrahim]

Hi; I wonder loadClass function how to compiled .java files to .class files in qtbase-dev/src/corelib/kernel/qjni.cpp ? Because we know *.java files must to compile to *.class files for env->FindClass function. But how to doing loadClass this job?

qtbase-dev/src/corelib/kernel/qjni.cpp ----> loadClass function:

inline static jclass loadClass(const QByteArray &className, JNIEnv *env, bool binEncoded = false)
{
    const QByteArray &binEncClassName = binEncoded ? className : toBinaryEncClassName(className);

    bool isCached = false;
    jclass clazz = getCachedClass(binEncClassName, &isCached);
    if (clazz != 0 || isCached)
        return clazz;

    QJNIObjectPrivate classLoader(QtAndroidPrivate::classLoader());
    if (!classLoader.isValid())
        return 0;

    QWriteLocker locker(cachedClassesLock);
    // did we lose the race?
    const QLatin1String key(binEncClassName);
    const QHash<QString, jclass>::const_iterator &it = cachedClasses->constFind(key);
    if (it != cachedClasses->constEnd())
        return it.value();

    QJNIObjectPrivate stringName = QJNIObjectPrivate::fromString(key);
    QJNIObjectPrivate classObject = classLoader.callObjectMethod("loadClass",
                                                                 "(Ljava/lang/String;)Ljava/lang/Class;",
                                                                 stringName.object());

    if (!exceptionCheckAndClear(env) && classObject.isValid())
        clazz = static_cast<jclass>(env->NewGlobalRef(classObject.object()));

    cachedClasses->insert(key, clazz);
    return clazz;
}

classLoader defined in qtbase-dev/src/android/jar/src/org/qtproject/qt5/android/QtNative.java like this:

private static ClassLoader m_classLoader = null;
    public static ClassLoader classLoader()
    {
        return m_classLoader;
    }

    public static void setClassLoader(ClassLoader classLoader)
    {
            m_classLoader = classLoader;
    }

Thanks.