Hi! and ((hugs)). Welcome to the toddler years. Sometime between 1 and 2 years old, they all seem to hit the picky eater stage. Unfortunately, it can hang around for a while. I've heard that their tastebuds do actually change (so things like green vegetables taste bitter), but no doubt a big part of it is about testing the boundaries, seeing what happens when they say 'no', and the power of expressing a preference!
The first thing to keep in mind is that she will not starve herself. So with that in mind, I would definitely not just give her what she wants. Youv'e seen the 'supernanny' type shows where they have kids who will eat nothing but icecream? When you're dealing with a picky toddler, it's easy to understand how they end up there. With us, it would have been (still could become, I guess) bananas and yoghurt. If you're so desperate that they eat SOMETHING, you'll give them what you know they'll eat, and then next time they hold out for bananas and yoghurt because they know it's coming.
Another thing to keep in mind is that you can have to expose a toddler to a new food 25, 50, 100 times before they will accept it. So if it is really important to you that she eats (for example) rice, because it's a staple that your family eats regularly, keep giving it to her, even if she rejects it 100% of the time. That goes for all foods really. Keep giving them. Even if she's not tasting them, she's still staying familiar with the look of them, the smell of them, the touch and the texture.
Make meals with one thing that you know she likes, or at least suspect she will eat. If she doesn't, no big deal. She won't starve between then and the next meal. We also had to cut down on snacks at this age. Keep your patience, and your sense of humour. It was also around this age I started doing 'steps to tasting' with Stan. We would do the steps together. First touch the food. Then sniff it. Then kiss it. Then touch it with a tongue. Then put it in the mouth and take it right out again. Then bite it. By then, he was usually familiar enough with it that he would go ahead and eat it, but if he didn't, even if he just kissed it and wouldn't do any more, I still considered it a victory.
Oh, one last point because I am rambling here. If she tries something new (or accepts again an old favourite), put it back into heavy rotation right away, so that it stays familiar.