iphone - UIScrollView with contentsize set can't scroll beyond frame boundary -

i feel i'm missing super obvious here.

i have uiscrollview in storyboard, outlet view controller.

i programatically add series of views, , set content size of scroll view.

even though i've set scrollview's contentsize height high value, can't scroll beyond views bounds.

i'm printing content size , frame size after setting it. contentoffset.y when scrollview scrolls.

here example of console output:

2013-09-24 21:54:34.531 [redacted] scrollview frame size: 320.000000,460.000000 2013-09-24 21:54:34.531 [redacted] scrollview content size: 0.000000,10000.000000 2013-09-24 21:54:36.259 [redacted] scroll to: 6.000000 2013-09-24 21:54:36.275 [redacted] scroll to: 17.000000 2013-09-24 21:54:36.291 [redacted] scroll to: 29.000000 2013-09-24 21:54:36.308 [redacted] scroll to: 41.000000 2013-09-24 21:54:36.325 [redacted] scroll to: 52.000000 2013-09-24 21:54:36.341 [redacted] scroll to: 65.000000 2013-09-24 21:54:36.358 [redacted] scroll to: 74.000000 2013-09-24 21:54:36.375 [redacted] scroll to: 84.000000 2013-09-24 21:54:36.392 [redacted] scroll to: 90.000000 2013-09-24 21:54:36.408 [redacted] scroll to: 95.000000 2013-09-24 21:54:36.425 [redacted] scroll to: 100.000000 2013-09-24 21:54:36.441 [redacted] scroll to: 103.000000 2013-09-24 21:54:36.459 [redacted] scroll to: 107.000000 2013-09-24 21:54:36.475 [redacted] scroll to: 110.000000 2013-09-24 21:54:36.492 [redacted] scroll to: 114.000000 2013-09-24 21:54:36.509 [redacted] scroll to: 118.000000 2013-09-24 21:54:36.525 [redacted] scroll to: 122.000000 2013-09-24 21:54:36.542 [redacted] scroll to: 126.000000 2013-09-24 21:54:36.558 [redacted] scroll to: 130.000000 2013-09-24 21:54:36.575 [redacted] scroll to: 134.000000 2013-09-24 21:54:36.592 [redacted] scroll to: 141.000000 2013-09-24 21:54:36.609 [redacted] scroll to: 147.000000 2013-09-24 21:54:36.625 [redacted] scroll to: 152.000000 2013-09-24 21:54:36.642 [redacted] scroll to: 156.000000 2013-09-24 21:54:36.659 [redacted] scroll to: 159.000000 2013-09-24 21:54:36.676 [redacted] scroll to: 160.000000 2013-09-24 21:54:36.776 [redacted] scroll to: 161.000000 2013-09-24 21:54:37.010 [redacted] scroll to: 162.000000 2013-09-24 21:54:37.026 [redacted] scroll to: 168.000000 2013-09-24 21:54:37.043 [redacted] scroll to: 179.000000 2013-09-24 21:54:37.060 [redacted] scroll to: 195.000000 2013-09-24 21:54:37.077 [redacted] scroll to: 207.000000 2013-09-24 21:54:37.097 [redacted] scroll to: 209.000000 2013-09-24 21:54:37.112 [redacted] scroll to: 219.000000 2013-09-24 21:54:37.129 [redacted] scroll to: 223.000000 2013-09-24 21:54:37.145 [redacted] scroll to: 222.000000 2013-09-24 21:54:37.162 [redacted] scroll to: 218.000000 2013-09-24 21:54:37.179 [redacted] scroll to: 212.000000 2013-09-24 21:54:37.195 [redacted] scroll to: 204.000000 2013-09-24 21:54:37.212 [redacted] scroll to: 195.000000 2013-09-24 21:54:37.229 [redacted] scroll to: 186.000000 2013-09-24 21:54:37.245 [redacted] scroll to: 177.000000 2013-09-24 21:54:37.262 [redacted] scroll to: 168.000000 2013-09-24 21:54:37.279 [redacted] scroll to: 160.000000 2013-09-24 21:54:37.296 [redacted] scroll to: 152.000000 2013-09-24 21:54:37.312 [redacted] scroll to: 145.000000 2013-09-24 21:54:37.329 [redacted] scroll to: 138.000000 2013-09-24 21:54:37.346 [redacted] scroll to: 133.000000 2013-09-24 21:54:37.362 [redacted] scroll to: 127.000000 2013-09-24 21:54:37.379 [redacted] scroll to: 122.000000 2013-09-24 21:54:37.396 [redacted] scroll to: 118.000000 2013-09-24 21:54:37.412 [redacted] scroll to: 114.000000 2013-09-24 21:54:37.429 [redacted] scroll to: 111.000000 2013-09-24 21:54:37.445 [redacted] scroll to: 108.000000 2013-09-24 21:54:37.462 [redacted] scroll to: 105.000000 2013-09-24 21:54:37.479 [redacted] scroll to: 103.000000 2013-09-24 21:54:37.496 [redacted] scroll to: 101.000000 2013-09-24 21:54:37.512 [redacted] scroll to: 99.000000 2013-09-24 21:54:37.529 [redacted] scroll to: 98.000000 2013-09-24 21:54:37.545 [redacted] scroll to: 96.000000 2013-09-24 21:54:37.562 [redacted] scroll to: 95.000000 2013-09-24 21:54:37.579 [redacted] scroll to: 94.000000 2013-09-24 21:54:37.595 [redacted] scroll to: 93.000000 2013-09-24 21:54:37.629 [redacted] scroll to: 92.000000 2013-09-24 21:54:37.645 [redacted] scroll to: 91.000000 2013-09-24 21:54:37.695 [redacted] scroll to: 90.000000 2013-09-24 21:54:37.745 [redacted] scroll to: 89.000000 2013-09-24 21:54:37.862 [redacted] scroll to: 88.000000 2013-09-24 21:54:38.381 [redacted] scroll to: 89.000000 2013-09-24 21:54:38.397 [redacted] scroll to: 108.000000 2013-09-24 21:54:38.414 [redacted] scroll to: 127.000000 2013-09-24 21:54:38.431 [redacted] scroll to: 150.000000 2013-09-24 21:54:38.448 [redacted] scroll to: 164.000000 2013-09-24 21:54:38.464 [redacted] scroll to: 182.000000 2013-09-24 21:54:38.481 [redacted] scroll to: 195.000000 2013-09-24 21:54:38.499 [redacted] scroll to: 213.000000 2013-09-24 21:54:38.516 [redacted] scroll to: 222.000000 2013-09-24 21:54:38.533 [redacted] scroll to: 224.000000 2013-09-24 21:54:38.550 [redacted] scroll to: 222.000000 2013-09-24 21:54:38.566 [redacted] scroll to: 217.000000 2013-09-24 21:54:38.583 [redacted] scroll to: 209.000000 2013-09-24 21:54:38.599 [redacted] scroll to: 201.000000 2013-09-24 21:54:38.616 [redacted] scroll to: 192.000000 2013-09-24 21:54:38.633 [redacted] scroll to: 183.000000 2013-09-24 21:54:38.650 [redacted] scroll to: 174.000000 2013-09-24 21:54:38.666 [redacted] scroll to: 166.000000 2013-09-24 21:54:38.683 [redacted] scroll to: 157.000000 2013-09-24 21:54:38.699 [redacted] scroll to: 150.000000 2013-09-24 21:54:38.716 [redacted] scroll to: 143.000000 2013-09-24 21:54:38.733 [redacted] scroll to: 137.000000 2013-09-24 21:54:38.749 [redacted] scroll to: 131.000000 2013-09-24 21:54:38.766 [redacted] scroll to: 126.000000 2013-09-24 21:54:38.783 [redacted] scroll to: 121.000000 2013-09-24 21:54:38.799 [redacted] scroll to: 117.000000 2013-09-24 21:54:38.816 [redacted] scroll to: 113.000000 2013-09-24 21:54:38.833 [redacted] scroll to: 110.000000 2013-09-24 21:54:38.849 [redacted] scroll to: 107.000000 2013-09-24 21:54:38.866 [redacted] scroll to: 105.000000 2013-09-24 21:54:38.883 [redacted] scroll to: 102.000000 2013-09-24 21:54:38.900 [redacted] scroll to: 100.000000 2013-09-24 21:54:38.916 [redacted] scroll to: 99.000000 2013-09-24 21:54:38.933 [redacted] scroll to: 97.000000 2013-09-24 21:54:38.950 [redacted] scroll to: 96.000000 2013-09-24 21:54:38.966 [redacted] scroll to: 95.000000 2013-09-24 21:54:38.983 [redacted] scroll to: 94.000000 2013-09-24 21:54:39.000 [redacted] scroll to: 93.000000 2013-09-24 21:54:39.016 [redacted] scroll to: 92.000000 2013-09-24 21:54:39.049 [redacted] scroll to: 91.000000 2013-09-24 21:54:39.083 [redacted] scroll to: 90.000000 2013-09-24 21:54:39.150 [redacted] scroll to: 89.000000 2013-09-24 21:54:39.267 [redacted] scroll to: 88.000000 2013-09-24 21:54:43.145 [redacted] scroll to: 91.000000 2013-09-24 21:54:43.162 [redacted] scroll to: 97.000000 2013-09-24 21:54:43.178 [redacted] scroll to: 103.000000 2013-09-24 21:54:43.195 [redacted] scroll to: 109.000000 2013-09-24 21:54:43.212 [redacted] scroll to: 115.000000 2013-09-24 21:54:43.229 [redacted] scroll to: 120.000000 2013-09-24 21:54:43.245 [redacted] scroll to: 124.000000 2013-09-24 21:54:43.262 [redacted] scroll to: 127.000000 2013-09-24 21:54:43.279 [redacted] scroll to: 130.000000 2013-09-24 21:54:43.296 [redacted] scroll to: 131.000000 2013-09-24 21:54:43.312 [redacted] scroll to: 133.000000 2013-09-24 21:54:43.329 [redacted] scroll to: 135.000000 2013-09-24 21:54:43.345 [redacted] scroll to: 136.000000 2013-09-24 21:54:43.374 [redacted] scroll to: 137.000000 2013-09-24 21:54:43.664 [redacted] scroll to: 138.000000 2013-09-24 21:54:43.681 [redacted] scroll to: 139.000000 2013-09-24 21:54:43.697 [redacted] scroll to: 143.000000 2013-09-24 21:54:43.714 [redacted] scroll to: 149.000000 2013-09-24 21:54:43.731 [redacted] scroll to: 155.000000 2013-09-24 21:54:43.748 [redacted] scroll to: 161.000000 2013-09-24 21:54:43.764 [redacted] scroll to: 166.000000 2013-09-24 21:54:43.781 [redacted] scroll to: 169.000000 2013-09-24 21:54:43.798 [redacted] scroll to: 172.000000 2013-09-24 21:54:43.814 [redacted] scroll to: 174.000000 2013-09-24 21:54:43.831 [redacted] scroll to: 177.000000 2013-09-24 21:54:43.848 [redacted] scroll to: 178.000000 2013-09-24 21:54:43.865 [redacted] scroll to: 180.000000 2013-09-24 21:54:43.887 [redacted] scroll to: 181.000000 2013-09-24 21:54:43.914 [redacted] scroll to: 183.000000 2013-09-24 21:54:43.948 [redacted] scroll to: 184.000000 2013-09-24 21:54:43.981 [redacted] scroll to: 186.000000 2013-09-24 21:54:43.998 [redacted] scroll to: 187.000000 2013-09-24 21:54:44.015 [redacted] scroll to: 188.000000 2013-09-24 21:54:44.031 [redacted] scroll to: 189.000000 2013-09-24 21:54:44.048 [redacted] scroll to: 190.000000 2013-09-24 21:54:44.065 [redacted] scroll to: 191.000000 2013-09-24 21:54:44.082 [redacted] scroll to: 192.000000 2013-09-24 21:54:44.116 [redacted] scroll to: 194.000000 2013-09-24 21:54:44.149 [redacted] scroll to: 195.000000 2013-09-24 21:54:44.182 [redacted] scroll to: 196.000000 2013-09-24 21:54:44.216 [redacted] scroll to: 197.000000 2013-09-24 21:54:44.266 [redacted] scroll to: 198.000000 2013-09-24 21:54:44.283 [redacted] scroll to: 199.000000 2013-09-24 21:54:44.299 [redacted] scroll to: 200.000000 2013-09-24 21:54:44.316 [redacted] scroll to: 202.000000 2013-09-24 21:54:44.349 [redacted] scroll to: 203.000000 2013-09-24 21:54:44.366 [redacted] scroll to: 204.000000 2013-09-24 21:54:44.449 [redacted] scroll to: 205.000000 2013-09-24 21:54:44.500 [redacted] scroll to: 206.000000 2013-09-24 21:54:44.601 [redacted] scroll to: 207.000000 2013-09-24 21:54:44.932 [redacted] scroll to: 189.000000 2013-09-24 21:54:44.949 [redacted] scroll to: 174.000000 2013-09-24 21:54:44.966 [redacted] scroll to: 161.000000 2013-09-24 21:54:44.982 [redacted] scroll to: 151.000000 2013-09-24 21:54:44.999 [redacted] scroll to: 141.000000 2013-09-24 21:54:45.016 [redacted] scroll to: 133.000000 2013-09-24 21:54:45.032 [redacted] scroll to: 126.000000 2013-09-24 21:54:45.049 [redacted] scroll to: 121.000000 2013-09-24 21:54:45.066 [redacted] scroll to: 116.000000 2013-09-24 21:54:45.082 [redacted] scroll to: 112.000000 2013-09-24 21:54:45.099 [redacted] scroll to: 108.000000 2013-09-24 21:54:45.116 [redacted] scroll to: 105.000000 2013-09-24 21:54:45.133 [redacted] scroll to: 102.000000 2013-09-24 21:54:45.149 [redacted] scroll to: 100.000000 2013-09-24 21:54:45.166 [redacted] scroll to: 98.000000 2013-09-24 21:54:45.183 [redacted] scroll to: 97.000000 2013-09-24 21:54:45.200 [redacted] scroll to: 96.000000 2013-09-24 21:54:45.216 [redacted] scroll to: 94.000000 2013-09-24 21:54:45.233 [redacted] scroll to: 93.000000 2013-09-24 21:54:45.266 [redacted] scroll to: 92.000000 2013-09-24 21:54:45.283 [redacted] scroll to: 91.000000 2013-09-24 21:54:45.316 [redacted] scroll to: 90.000000 2013-09-24 21:54:45.366 [redacted] scroll to: 89.000000 2013-09-24 21:54:45.483 [redacted] scroll to: 88.000000 

as can see, can't scroll beyond 200 odd.

i'm not new ios , have worked scroll views before feel must missing obvious.

any appreciated, have tight deadline!

edit: added code:

checkboxes = [[nsmutablearray alloc] init]; {     // indented scope tidyness, no functional meaning     [checkboxes addobject:[self createcheckboxwithlabel:@"oil level checked"                                                      aty:190]];     [checkboxes addobject:[self createcheckboxwithlabel:@"coolant level checked"                                                          aty:240]];     [checkboxes addobject:[self createcheckboxwithlabel:@"tyre pressures & tread dept checked"                                                          aty:290]];     [checkboxes addobject:[self createcheckboxwithlabel:@"warning beacon & horn operating"                                                          aty:340]];     [checkboxes addobject:[self createcheckboxwithlabel:@"lights & indicators working & clean"                                                          aty:390]];     [checkboxes addobject:[self createcheckboxwithlabel:@"screen & wipers operational"                                                          aty:440]];     [checkboxes addobject:[self createcheckboxwithlabel:@"mirrors undamaged & clean"                                                          aty:490]];     [checkboxes addobject:[self createcheckboxwithlabel:@"road tax & mod discs present & valid"                                                          aty:540]];     [checkboxes addobject:[self createcheckboxwithlabel:@"ppe in vechile"                                                          aty:590]];     [checkboxes addobject:[self createcheckboxwithlabel:@"fire extinguisher & first aid kit present"                                                          aty:640]];     [checkboxes addobject:[self createcheckboxwithlabel:@"wheel nuts checked torque wrench"                                                          aty:690]]; } for(wpcheckboxwithlabelview *checkbox in checkboxes){     [scrollview addsubview: checkbox]; }  // set content size of scrollview scrollview.contentsize = cgsizemake(0, 10000); scrollview.delegate = self; nslog(@"scrollview frame size: %f,%f", scrollview.frame.size.width, scrollview.frame.size.height); nslog(@"scrollview content size: %f,%f", scrollview.contentsize.width, scrollview.contentsize.height); 

i have same thing in 1 views , works fine me. attached code:

cgsize s = cgsizemake(maindetailview.frame.size.width,                       view1.frame.size.height + margin +                       view2.frame.size.height + margin +                       view3.frame.size.height + margin +                       view4.frame.size.height + margin + 10000);  [maindetailview setcontentsize:s];  maindetailview.clipstobounds = no; maindetailview.pagingenabled = no; 

the margin constant defined 20.

i can scroll beyond limit of views.

maybe can post code , easier you.