<![CDATA[How do I return bool from Android Java code?]]>I'm new to Android and JNI stuff, I basically need to return a boolean from some android java code,

Now looking at an example I can get a string to return but not sure how to go about returning a bool

Currently have test.java:

    import org.qtproject.qt5.android.bindings.QtApplication;
    import org.qtproject.qt5.android.bindings.QtActivity;
    import android.content.res.Configuration;
 
    public class test extends QtActivity
    {    


    public static String printBob(int a)
    {
      return "hello bob";
    }

public boolean teste(){

    Configuration config = getResources().getConfiguration();
    return config.isScreenRound();

    };

    }

Now the printBob() works fine from:

QAndroidJniObject str = QAndroidJniObject::callStaticObjectMethod("test",
                                       "printBob",
                                       "(I)Ljava/lang/String;"
                                       );

    return str.toString();

But I'm not sure how to call the teste() function to return the bool

Thanks

]]>https://forum.qt.io/topic/113977/how-do-i-return-bool-from-android-java-codeRSS for NodeMon, 08 Jun 2026 01:59:19 GMTThu, 23 Apr 2020 14:20:02 GMT60<![CDATA[Reply to How do I return bool from Android Java code? on Thu, 23 Apr 2020 21:50:22 GMT]]>@Allstar12345 You have to use full name, with package.
For example if your class test is in package com.mycompany.application:

 QAndroidJniObject str = QAndroidJniObject::callStaticObjectMethod("com/mycompany/application/test",
                                           "teste",
                                           "(I)Z");
]]>https://forum.qt.io/post/590486https://forum.qt.io/post/590486Thu, 23 Apr 2020 21:50:22 GMT<![CDATA[Reply to How do I return bool from Android Java code? on Thu, 23 Apr 2020 20:06:03 GMT]]>@koahnig I read that initially, the signature for string is of course

(I)Ljava/lang/String;

I get that bit, but whatever i put in the last argument fails, I'm new to this stuff it doesn't really make sense


    QAndroidJniObject str = QAndroidJniObject::callStaticObjectMethod("test",
                                           "teste",
                                           "(I)Z");
]]>https://forum.qt.io/post/590468https://forum.qt.io/post/590468Thu, 23 Apr 2020 20:06:03 GMT<![CDATA[Reply to How do I return bool from Android Java code? on Thu, 23 Apr 2020 16:39:16 GMT]]>@Allstar12345

Under https://doc.qt.io/qt-5/qandroidjniobject.html#details

9c6ea555-f303-464c-b09f-600b65b31c02-image.png

]]>https://forum.qt.io/post/590411https://forum.qt.io/post/590411Thu, 23 Apr 2020 16:39:16 GMT