Unlock Stunning UI Designs with Google’s Nano Banana AI: 3 Practical Prompts

This guide explores Google’s Nano Banana AI model, offering three actionable prompt templates for UI concept generation, low‑fidelity wireframing, and component design, along with tips on crafting clear, detailed prompts to achieve high‑quality, style‑consistent visual outputs using the free Google AI Studio.

Code Mala Tang
Code Mala Tang
Code Mala Tang
Unlock Stunning UI Designs with Google’s Nano Banana AI: 3 Practical Prompts

Google Nano Banana is the code name for Google’s latest image generation and editing model Gemini 2.5 Flash Image, representing a major upgrade in visual creation capabilities. The model supports advanced natural‑language image editing, character consistency, and easy style transfer.

I had the chance to try Nano Banana and share three useful prompts for everyday design tasks; the model can be accessed for free in Google AI Studio.

Quick Tips:

Getting great results from Nano Banana requires clear context, defined constraints, and a specified output format—think of it as briefing a junior designer: the more detail you provide, the better the outcome.

1. Ideation & Brainstorming

Use these prompts early in a project to quickly explore different concepts.

UI Concept Generation (Template)

为 [产品或功能] 在 [平台,例如 iOS、网页、智能显示屏] 上生成 [数量] 个不同的 UI 概念。
目标受众是 [用户画像描述]。
主要目标是 [关键用户操作]。
重点关注以下主题或风格:
1. [风格 1,例如:极简主义 & 清洁]
2. [风格 2,例如:数据丰富 & 专业]
3. [风格 3,例如:有趣 & 游戏化]
为每个概念提供布局、关键组件以及整体用户体验理由的简要描述。

Example

为 Android 设备上的个人理财应用的仪表盘生成 3 个不同的 UI 概念。
目标受众是刚接触预算的大学生。
主要目标是帮助他们快速查看支出概览。
重点关注以下主题或风格:
1. 极简主义 & 清洁
2. 数据丰富 & 专业
3. 有趣 & 游戏化
为每个概念提供布局、关键组件以及整体用户体验理由的简要描述。

Below is one of the three UI concepts Nano Banana generated – a minimalist & clean example. I omitted the brief textual description to let you evaluate the visual quality.

2. Wireframes & Layout Structures

These prompts quickly generate structured ideas for specific screens or components.

Low‑Fidelity Wireframe Structure (Template)

Quick Tips:

For this prompt I used Markdown format, but I tried both Markdown and plain text without noticing a big difference.

为 [产品类型] 应用的 [屏幕名称] 创建一个低保真线框图。平台是 [平台]。
- **主要目标:** [屏幕的主要目标]
- **关键信息/元素包括:**
  - [元素 1,例如:用户头像]
  - [元素 2,例如:搜索栏]
  - [元素 3,例如:带缩略图的项目列表]
  - [主要 CTA,例如:“加入购物车”按钮]
- **用户上下文:** [用户到达此处时可能的想法或行为]
- **约束条件:** [任何约束条件,例如:“将搜索栏优先放在顶部”,“这必须是一个单页滚动页面”]
标注线框图的信息层级和元素放置(例如:“页眉包含……”,“主要内容区域是一个两列网格……”)。

Example

为酒店预订网站的“搜索结果”页面创建一个低保真线框图。平台是桌面网页。
- **主要目标:** 帮助用户轻松扫描和比较酒店选项。
- **关键信息/元素包括:**
  - 排序 & 筛选选项
  - 交互式地图视图
  - 酒店卡片列表(带图片、价格、评分、关键设施)
  - 主要 CTA:“查看优惠”按钮,每个卡片上都有
- **用户上下文:** 用户刚刚输入了目的地和日期,现在想找到性价比最高的酒店。
- **约束条件:** 筛选选项必须始终显示在屏幕左侧。
标注线框图的信息层级和元素放置。

3. Component Design & Systematization

These prompts help you think about individual UI components and their various states.

UI Component State Analysis (Template)

生成一个 [保真度级别,例如:详细 UI 组件,线框图表示],用于 [UI 组件例如:切换开关、多选下拉菜单、视频播放器控制栏] 的 [特定状态例如:活动状态、错误状态、禁用状态]。
- **产品上下文:** [该组件的使用位置,例如:SaaS 仪表盘、电子商务结账表单]
- **设计系统/风格:** [例如:Material Design、Apple HIG、平面设计、新拟物主义]
- **关键视觉元素:** [描述重要图标、颜色、文本或形状]
- **交互提示(对于活动状态):** [处于此状态时会发生什么,例如:“显示加载旋转器”,“展开以显示选项”]

Example

生成一个详细 UI 组件,用于“多选下拉菜单”处于活动(打开)状态。
- **产品上下文:** 项目管理工具的任务分配模态框。
- **设计系统/风格:** 清洁、专业,使用极简主义美学,带有微妙的阴影。
- **关键视觉元素:** 输入字段显示为小标签的选定项目、带有复选框的下拉列表以及滚动条。
- **交互提示:** 下拉菜单应清楚显示当前选定的项目。

Prompt Tips

Be Specific : Instead of “design a login screen,” say “design a login screen for a mobile banking app that supports biometric login and includes a ‘Forgot Password’ button.”

Provide Visual References : Supplying current UI designs or style attributes helps Nano Banana generate outputs that match your brand, such as specifying brand colors in the prompt.

Iterate Repeatedly : Treat the first response as a starting point. Refine the prompt with more details to get closer to your needs, e.g., “This is a good start. Now make concept #2 more data‑dense for power users.”

Set Constraints : Constraints are your friend. Specify character limits, target platforms, or design systems (e.g., Material Design) to obtain more focused results.

AI image generationUI designdesign workflowGoogle GeminiNano Banana
Code Mala Tang
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