ios - UIButtons receiving touch events when added directly to scrollview but not indirectly -

i have 10 uibuttons stacked side side in app , , total dimensions of buttons 640x96.

if add these buttons directly uiscrollview, register touch events , scrollable.

but if try add them plain uiview, add uiview scrollview, dont work.

this code:

- (void)viewdidload { [super viewdidload]; uiview *fview = [[uiview alloc] init]; fview.frame = cgrectmake(0, 0, 640, 96); fview.backgroundcolor = [uicolor blackcolor]; [fview setuserinteractionenabled:yes]; [_sv setuserinteractionenabled:yes];  (int i=0; i<10; i++) {         uibutton *button = [uibutton buttonwithtype:uibuttontypecustom];         button.frame = cgrectmake(64*i, 0, 64, 96);         [button settitle:@"click me!" forstate:uicontrolstatenormal];         [button addtarget:self action:@selector(buttonclicked:) forcontrolevents:uicontroleventtouchupinside];         [fview addsubview:button]; } [_sv addsubview:fview]; _sv.contentsize = cgsizemake(640, 96); }  -(void)buttonclicked:(id)sender {     nslog(@"clicked!"); } 

while writing question fixed problem :d

all had set frame of uiview before set scrollview's contentsize.

in case:

[_sv addsubview:fview]; fview.frame = cgrectmake(0, 0, 640, 96); // added line _sv.contentsize = cgsizemake(640, 96); 

hope helps!