Custom UIView getting display late - ios

Question

I'm facing an weird issue, I'm developing a iOS static library, this static library have some custom UIViews. These custom views contains UIButtons and IBOutlets for those buttons, Custom UIView has been create in Xib. Now this static library I'm including inside another static library and I'm attaching custom UIView
of library one in to UIViewController's UIView of static library two with -
[self.view addSubview:aCustomViewFromLibrary1];
So when I'm using Library 2 in to some product everything goes great but when code of adding custom UIView of static library one to static library two runs everything goes right but custom UIView appears late, about half a minutes late.
here is the code for one of the custom UIView in static library one...
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if(!self){
return nil;
}
_otpTextField.delegate = self;
loadView()
_approveOtpBtn.layer.cornerRadius = 5;
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
viewFrame = frame;
CALayer *layer = self.layer;
layer.shadowOffset = CGSizeMake(1, 1);
layer.shadowColor = [[UIColor blackColor] CGColor];
layer.shadowRadius = 4.0f;
layer.shadowOpacity = 0.80f;
layer.shadowPath = [[UIBezierPath bezierPathWithRect:layer.bounds] CGPath];
return self;
}
-(id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if(!self){
return nil;
}
loadView()
_approveOtpBtn.layer.cornerRadius = 5;
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
return self;
}
-(void) awakeFromNib{
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
_approveOtpBtn.layer.cornerRadius = 5;
}
// Approve OTP
-(IBAction)approveOtp:(UIButton *) aButton{
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
}
// minimize custome browser
-(IBAction)minimizeCB:(UIButton *) aButton{
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
}
- (void) RegenerateOTP:(UIButton *) aButton{
NSLog(#"%#",[NSString stringWithFormat:#"%s", __PRETTY_FUNCTION__]);
}
------UPDATE------
This is how I'm adding above custom View in the UIViewController's UIView.
- (void) updateView{
if([paymentOption isEqualToString:CHOOSE]){
if(_choose){
[_choose removeFromSuperview];
_choose = nil;
}
if(_approveOTP){
[_approveOTP removeFromSuperview];
_approveOTP = nil;
}
if(_regenOTPView){
[_regenOTPView removeFromSuperview];
_regenOTPView = nil;
}
_choose = [[CBAllPaymentOption alloc] initWithFrame:CGRectMake(0,self.resultView.frame.size.height - 227,self.resultView.frame.size.width,227)];
_choose.bankJS = _bankSpecificJavaScriptDict;
_choose.handler = self;
NSLog(#"loadJavascript AllOptionView view = %# ResultView = %#",_choose,_resultView);
//[_resultView addSubview:_choose];
if(_connectionHandlerDelegate && [_connectionHandlerDelegate respondsToSelector:#selector(addViewInResultView:)]){
[_connectionHandlerDelegate addViewInResultView:_choose];
}
[_resultView bringSubviewToFront:_choose];
// view getting display late so call setNeedDisplay.
[_choose setNeedsDisplay];
_choose.isViewOnScreen = YES;
}
}
Any solution and suggestion are welcome

Answer 1

Any changes you make to the UI must be done on the main thread.
You can try something like this.
dispatch_async(dispatch_get_main_queue(), ^{
// perform updates here
});