iphone - Dynamic UIButtons with vertical spacing on a UIScrollView -

i need space uibuttons out on uiscrollview. code have works, depending on amount of dataitems have, spacing not even.

snippet in question

cgrectmake(10, ((120 / (count + 1)) * (i + 1) * 3) ,300,50) 

specifically

((120 / (count + 1)) * (i + 1) * 3) 

working code

int count = [dataitems count];  /*  not specific value, can grow  */ (int = 0; < count; i++) {     uibutton* abutton = [uibutton buttonwithtype:uibuttontyperoundedrect];     [abutton settag:i];     [abutton setframe: cgrectmake(10,((120 / (count + 1)) * (i + 1) * 3) ,300,50) ];     [abutton settitle:[[dataitems objectatindex:i] objectforkey:@"feed"] forstate:uicontrolstatenormal];     [abutton addtarget:self action:@selector(viewcategories:) forcontrolevents:uicontroleventtouchupinside];     [scroller addsubview:abutton]; } 

screenshot

the example on right should example on left far spacing goes. uibuttons sitting on uiscrollview, uiscrollview's contentsize should grow if there more dataitems buttons can scroll offscreen if there say, 30+ dataitems.

         

sounds need set size , padding...

int count = [dataitems count]; cgfloat staticx = 10; // static x buttons. cgfloat staticwidth = 300; // static width buttons. cgfloat staticheight = 50; // static height buttons.  cgfloat staticpadding = 10; // padding add between each button.  (int = 0; < count; i++) {     uibutton* abutton = [uibutton buttonwithtype:uibuttontyperoundedrect];     [abutton settag:i];     //calculate static values.     //i added 1 set of padding top. multiplied padding plus height count.     // 10 + 0 first     // 10 + 60 second.     // 10 + 120 third. , on.     [abutton setframe: cgrectmake(10,(staticpadding + (i * (staticheight + staticpadding)) ,staticwidth,staticheight) ];     [abutton settitle:[[dataitems objectatindex:i] objectforkey:@"feed"] forstate:uicontrolstatenormal];     [abutton addtarget:self action:@selector(viewcategories:) forcontrolevents:uicontroleventtouchupinside];     [scroller addsubview:abutton]; } 

however if trying buttons sort of behavior. inclined agree rest.. can make custom cell button in it.

then can load button cell when table asks button.

and have table tie [dataitems count] total of items.

then calculation set cell height when set dataitems count. making sure not make them short. , table handle rest.