ios - Sprite Kit game for Iphone 3.5 inch and 4 inch screen size -

i have developed little game in sprite kit xcode 5 4-inch screen, know if , how can use 3.5-inch. when open app iphone 5, ok, if try open iphone 4s simulator, lot of things hidden outside of screen.

i read lot of posts , solution seems constraints, best solution? work spritekit? how can use it?

for example positioned child this:

aasharebubbles *sharebubbles = [[aasharebubbles alloc] initwithpoint:cgpointmake(self.view.frame.size.width/2, (self.view.frame.size.height/2)+170) 

170 absolute position. (height/2)+170 ok 4-inch screen, not 3.5-inch screen.

there many ways can different device either create different textureatlas different device size or easiest way change skview

for eg

add line viewcontroller

#define is_widescreen ( fabs( ( double )[ [ uiscreen mainscreen ] bounds ].size.height - ( double )568 ) < dbl_epsilon )    -(void)addloadingscene {      if (ui_user_interface_idiom() == uiuserinterfaceidiomphone) {          if (is_widescreen) {             //this code iphone 4 inches              //get device type _devicetype=iphonebig;             //define globalscalex , globalscaley in header fine             //where skview reference of view               _globalscalex=(1024.0f*2)/(568*2);             _globalscaley=(768.0f*2)/(320*2);              yourfirstscreen = [loadingscene scenewithsize:cgsizemake(_skview.bounds.size.height*_globalscalex, _milkhuntskview.bounds.size.width*_globalscaley)];                  //please take @ scalemode defined spritekit                 yourfirstscreen.scalemode = skscenescalemodefill;         } else {         //this code iphone 3.5 inches               _devicetype=iphone;             _globalscalex=(1024.0f*2)/(480*2);             _globalscaley=(768.0f*2)/(320*2);              yourfirstscreen = [loadingscene scenewithsize:cgsizemake(_skview.bounds.size.height.bounds.size.height*_globalscalex, _skview.bounds.size.height bounds.size.width*_globalscaley)];              yourfirstscreen.scalemode = skscenescalemodefill;         }      } else {            //this code ipad         _devicetype=ipad;         _globalscalex=1.0f;         _globalscaley=1.0f;          loaderscreen = [loadingscene scenewithsize:cgsizemake(_skview.bounds.size.height.bounds.size.height, _skview.bounds.size.height.bounds.size.width)];        yourfirstscreen.scalemode = skscenescalemodeaspectfill;     }        [_skview presentscene:loaderscreen];   }