update UI with animation synchronously or in serial queue

Question

I have custom build menu which pushes or pops views. for example menu1 pushes a view. if menu2 is pressed the removes previous view and show other view. pushing and popping are animated. how to serially update/push/pop views with animation? it should no ignore any menu selection

i have used dispatch_queue_t and NSOperationQueue to no avail as if it ignores uiview animation. the self.uiOperationQueue has 1 as max concurrent operation.

[self.uiOperationQueue addOperationWithBlock:^{
    dispatch_async(dispatch_get_main_queue(), ^{
            [self updateViewsForSelection:menuType];
    });
}];

with dispatch queue:

self.uiUpdateQueue = dispatch_queue_create("ui-updateQueue", NULL);
dispatch_async(self.uiUpdateQueue, ^{
        [self updateViewsForSelection:menuType];
});

so basically the [self updateViewsForSelection:menuType] is called with different menu and uiview animation with duration. what am i doing wrong?

Answer 1

Its possible to add animation blocks into an array and execute them one after another using the completion block

-(void)executeAnimationsInArray:(NSArray *)array atIndex:(int)index
{
    [UIView animateWithDuration:1 animations:array[index] completion:^(BOOL finished) {
        if (index < array.count - 1)
        {
            [self executeAnimationsInArray:array atIndex:index+1];
        }
    }];

}

It can be used like

id block1 = ^(void) {
    imgView.frame = CGRectOffset(imgView.frame, 10, 10);
};
id block2 = ^(void) {
    imgView.frame = CGRectOffset(imgView.frame, -10, -10);
};

[self executeAnimationsInArray:@[block1, block2] atIndex:0];