animateWithDuration

.m

        
    [UIView animateWithDuration:0.3f animations:^{
    	self.tabMenuIndicator.frame = CGRectMake(200, 0, 50, 5);
    }];


- (void)showFilter {
    self.mainVC.viewFilterMask.hidden = NO;
    self.mainVC.viewFilterMask.alpha = 0;

    self.mainVC.constraintFilterLeadingInvisible.active = NO;
    self.mainVC.constraintFilterLeadingVisible.active = YES;
    [UIView animateWithDuration:0.4 animations:^{
        [self.mainVC.view layoutIfNeeded];
        self.mainVC.viewFilterMask.alpha = 1;
    }];
}

- (void)hideFilter {
    self.mainVC.constraintFilterLeadingVisible.active = NO;
    self.mainVC.constraintFilterLeadingInvisible.active = YES;
    [UIView animateWithDuration:0.4 animations:^{
        [self.mainVC.view layoutIfNeeded];
        self.mainVC.viewFilterMask.alpha = 0;
    } completion:^(BOOL finished) {
        self.mainVC.viewFilterMask.hidden = YES;
    }];
}