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| |
| #include "jnimessenger.h" |
| |
| #include <QAndroidJniObject> |
| #include <QAndroidJniEnvironment> |
| #include <QtAndroid> |
| |
| JniMessenger *JniMessenger::m_instance = nullptr; |
| |
| static void callFromJava(JNIEnv *env, jobject /*thiz*/, jstring value) |
| { |
| emit JniMessenger::instance()->messageFromJava(env->GetStringUTFChars(value, nullptr)); |
| } |
| |
| JniMessenger::JniMessenger(QObject *parent) : QObject(parent) |
| { |
| m_instance = this; |
| |
| JNINativeMethod methods[] {{"callFromJava", "(Ljava/lang/String;)V", reinterpret_cast<void *>(callFromJava)}}; |
| QAndroidJniObject javaClass("org/qtproject/example/jnimessenger/JniMessenger"); |
| |
| QAndroidJniEnvironment env; |
| jclass objectClass = env->GetObjectClass(javaClass.object<jobject>()); |
| env->RegisterNatives(objectClass, |
| methods, |
| sizeof(methods) / sizeof(methods[0])); |
| env->DeleteLocalRef(objectClass); |
| } |
| |
| void JniMessenger::printFromJava(const QString &message) |
| { |
| QAndroidJniObject javaMessage = QAndroidJniObject::fromString(message); |
| QAndroidJniObject::callStaticMethod<void>("org/qtproject/example/jnimessenger/JniMessenger", |
| "printFromJava", |
| "(Ljava/lang/String;)V", |
| javaMessage.object<jstring>()); |
| } |