java - Android (NDK) openSoftInput in landscape mode -

i'm porting framework android ndk. , have use on screen keyboard once in while. opening , closing keyboard works far..

but have problem focus of keyboard in landscape mode (portrait mode works fine) - part of screen colored red still reacting on touch input if there no keyboard on it, 1 uncolored row of keyboard works expected , greenish part on keyboard not receive touch input.

i have tested usual android app well. same result (code see @ end of question).

i'm opening keyboard when klicking on "press me!" button , close softkey. code called open/close:

//adapted https://groups.google.com/d/msg/android-ndk/tk3g00wlkhk/tjqucoae_asj void androidcore::openonscreenkeyboard(bool open){     // attaches current thread jvm.      jint lresult;      jint lflags = 0;       javavm* javavm = view->native_activity->vm;     jnienv* jnienv;     bool attached = false;      if(javavm->getenv((void**)&jnienv, jni_version_1_6) ==jni_edetached){         javavmattachargs attachargs;         attachargs.version = jni_version_1_6;         attachargs.name = "nativethread";         attachargs.group = null;          jint result = javavm->attachcurrentthread(&jnienv, &attachargs);         if(result == jni_err){             return;         }         attached = true;     }       // retrieves context.input_method_service.      jclass classcontext = jnienv->findclass("android/content/context");      jfieldid fieldinput_method_service = jnienv->getstaticfieldid(classcontext, "input_method_service", "ljava/lang/string;");      jobject input_method_service = jnienv->getstaticobjectfield(classcontext, fieldinput_method_service);       jclass classnativeactivity = jnienv->findclass("android/app/nativeactivity");     jobject lnativeactivity = view->native_activity->clazz;      // runs getsystemservice(context.input_method_service).      jclass classinputmethodmanager = jnienv->findclass("android/view/inputmethod/inputmethodmanager");     jmethodid methodgetsystemservice = jnienv->getmethodid(classnativeactivity, "getsystemservice", "(ljava/lang/string;)ljava/lang/object;");      jobject linputmethodmanager = jnienv->callobjectmethod(lnativeactivity, methodgetsystemservice, input_method_service);       // runs getwindow().getdecorview().     jmethodid methodgetwindow = jnienv->getmethodid(classnativeactivity, "getwindow", "()landroid/view/window;");      jobject lwindow = jnienv->callobjectmethod(lnativeactivity, methodgetwindow);      jclass classwindow = jnienv->findclass("android/view/window");     jmethodid methodgetdecorview = jnienv->getmethodid(classwindow, "getdecorview", "()landroid/view/view;");     jobject ldecorview = jnienv->callobjectmethod(lwindow, methodgetdecorview);          // runs lwindow.getviewtoken()      jclass classview = jnienv->findclass("android/view/view");      jmethodid methodgetwindowtoken = jnienv->getmethodid(classview, "getwindowtoken", "()landroid/os/ibinder;");      jobject lbinder = jnienv->callobjectmethod(ldecorview, methodgetwindowtoken);       if (open) {         // runs linputmethodmanager.showsoftinput(...).          jmethodid methodshowsoftinput = jnienv->getmethodid(classinputmethodmanager, "showsoftinput", "(landroid/view/view;i)z");          jboolean lresult = jnienv->callbooleanmethod(linputmethodmanager, methodshowsoftinput, ldecorview, lflags);     } else {          // linputmethodmanager.hidesoftinput(...).          jmethodid methodhidesoftinput = jnienv->getmethodid(classinputmethodmanager, "hidesoftinputfromwindow", "(landroid/os/ibinder;i)z");          jboolean lres = jnienv->callbooleanmethod(linputmethodmanager, methodhidesoftinput, lbinder, lflags);      }       // finished jvm.      javavm->detachcurrentthread();  } 

java code similiar problem:

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     button = (button) findviewbyid(r.id.button);      button.setonclicklistener(new onclicklistener() {         public void onclick(view arg0) {             inputmethodmanager keyboard = (inputmethodmanager)getsystemservice(context.input_method_service);             keyboard.showsoftinput(getwindow().getdecorview(), 0);                      //same showsoftinput(button, 0);         }     }); } 

so can imagine, why focus problem happens? , can me fixing problem?

thanks!