Another consideration is that if you are in SF, right in The City, the climate is not ideal for figs. Delayed fruit development can be a result of the climate.
See "Environmental Considerations".
Winter pruning should be minimal, light thinning, deadwood removal, crossing branches and very light shaping as needed. Heavy pruning and heading back of all the terminal growth will delay flowering and fruiting.
If the tree is in a container, especially if for more than 2 years, there may not be enough soil volume to provide mineral nutrients and retain soil moisture. Consider re-potting into a large pot with new, good quality potting soil.
If in the ground, then soil and water management are critical. Fertilization is important. Organic mulch on the soil surface helps to retain soil moisture and furnish nutrients.
Deep water (6 to preferably 10 inch soil penetration) once a week during dry season, drip irrigation or light superficial sprinking may keep the tree alive, but is not adequate for optimal health, flowering and fruit development.
Fertilize at least spring and fall with a complete organic fertilizer like this: