The recent advances in Large Language Models (LLMs) have stimulated interest
among researchers and industry professionals, particularly in their application
to tasks concerning mobile user interfaces (UIs). This position paper
investigates the use of LLMs for UI layout generation. Central to our
exploration is the introduction of UI grammar -- a novel approach we proposed
to represent the hierarchical structure inherent in UI screens. The aim of this
approach is to guide the generative capacities of LLMs more effectively and
improve the explainability and controllability of the process. Initial
experiments conducted with GPT-4 showed the promising capability of LLMs to
produce high-quality user interfaces via in-context learning. Furthermore, our
preliminary comparative study suggested the potential of the grammar-based
approach in improving the quality of generative results in specific aspects.

最近大型语言模型的进展激发了研究人员和行业专业人员的兴趣，特别是在与移动用户界面相关的任务中的应用。本研究探讨了使用大型语言模型进行用户界面布局生成的方法，并引入了 UI 语法的概念，以更有效地指导生成能力，并提高过程的可解释性和可控性。通过与 GPT-4 进行的初步实验表明，大型语言模型通过上下文学习具有产生高质量用户界面的有希望的能力。此外，我们的初步比较研究显示了基于语法的方法在改善特定方面的生成结果质量方面的潜力。