iphone - UIActivityIndicatorView display in the center of the screen -

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is there way have uiactivityindicatorview display in center of screen mirror networkactivityindicator? want same process networkactivityindicator, larger indicator more noticeable user.

try this:

uiview *view = /* whatever main view */ uiactivityindicatorview *spinner = [[uiactivityindicatorview alloc]              initwithactivityindicatorstyle:uiactivityindicatorviewstylewhitelarge]; cgrect frame = spinner.frame; frame.origin.x = view.frame.size.width / 2 - frame.size.width / 2; frame.origin.y = view.frame.size.height / 2 - frame.size.height / 2; spinner.frame = frame; [view addsubview:spinner]; [spinner startanimating]; [spinner release]; // or, keep handle later stop animating

this centers spinner in enclosing view, whatever might be.

if not keep handle spinner, , if spinner subview of view (or @ least in known position), later handle dipping [view subviews] it.

edit: use cgrectgetmidx() , cgrectgetmidy() instead of more complicated equations above finding x , y... mileage may vary. :-)

edit (2/25/2016)

this answer has received up-votes recently, thought update in order. there better way now. example places uiactivityindicatorview in center of uitableview.

self.spinner = [[uiactivityindicatorview alloc] initwithactivityindicatorstyle:uiactivityindicatorviewstylegray]; _spinner.translatesautoresizingmaskintoconstraints = no; _spinner.hideswhenstopped = yes; [self.tableview addsubview:self.spinner];  [self.tableview addconstraints:@[                                  [nslayoutconstraint constraintwithitem:_spinner                                                               attribute:nslayoutattributecenterx                                                               relatedby:nslayoutrelationequal                                                                  toitem:self.tableview                                                               attribute:nslayoutattributecenterx                                                              multiplier:1 constant:0],                                  [nslayoutconstraint constraintwithitem:_spinner                                                               attribute:nslayoutattributecentery                                                               relatedby:nslayoutrelationequal                                                                  toitem:self.tableview                                                               attribute:nslayoutattributecentery                                                              multiplier:1 constant:0]                                  ]];

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