Below examples on how to use java methods with arguments
Java
public int Test01() {
System.out.println("Test01");
return 0;
}
public int Test02(int Value) {
System.out.println("Test02");
System.out.println(Value);
return 0;
}
public int Test03(String Value) {
System.out.println("Test03");
System.out.println(Value);
return 0;
}
public String Test04(int Value) {
System.out.println("Test04");
System.out.println(Value);
return "Hello!!!";
}
public String Test04b(String Value) {
System.out.println("Test04b");
System.out.println(Value);
return "Hello!!!";
}
public String[] Test05(String Value1, String Value2) {
System.out.println("Test05");
System.out.println(Value1);
System.out.println(Value2);
String[] Result= new String[2];
Result[0]= "Hello";
Result[1]= "world!!!";
return Result;
}
Qt / C++
qDebug() << "Test01 result:" << QtAndroid::androidActivity().callMethod<jint>("Test01");
qDebug() << "Test02 result:" << QtAndroid::androidActivity().callMethod<jint>("Test02", "(I)I", 10);
QAndroidJniObject Value1= QAndroidJniObject::fromString("Value1");
QAndroidJniObject Value2= QAndroidJniObject::fromString("Value2");
qDebug() << "Test03 result:" << QtAndroid::androidActivity().callMethod<jint>("Test03", "(Ljava/lang/String;)I", Value1.object<jstring>());
qDebug() << "Test04 result:" << QAndroidJniObject(QtAndroid::androidActivity().callObjectMethod("Test04", "(I)Ljava/lang/String;", 123456)).toString();
qDebug() << "Test04b result:" << QAndroidJniObject(QtAndroid::androidActivity().callObjectMethod("Test04b", "(Ljava/lang/String;)Ljava/lang/String;", Value1.object<jstring>())).toString();
QAndroidJniObject stringArray= QtAndroid::androidActivity().callObjectMethod("Test05",
"(Ljava/lang/String;Ljava/lang/String;)[Ljava/lang/String;",
Value1.object<jstring>(),
Value2.object<jstring>());
if (stringArray.isValid()) {
jobjectArray objectArray= stringArray.object<jobjectArray>();
for (int count= 0; count< env->GetArrayLength(objectArray); count++) {
QAndroidJniObject AndroidJniObject= env->GetObjectArrayElement(objectArray, count);
qDebug() << AndroidJniObject.toString();
}
}
