| --- |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| layout: docpage |
| title: User Interface (UI) |
| description: Where the user works with your app |
| permalink: /user-interface |
| --- |
| |
| # User Interface (UI) |
| |
| Where the user works with your app |
| |
| Developers know that the data layer, the business layer, and the user interface of an apploication all need to be fast, reliable, and robust. End-users tend to focus on the user interface. It is where they interact with all the strength and subtlety of an application, and where they tend to form their opinion of an app. |
| |
| A good "user experience" includes not just getting the process result you want, but how comfortable you were working with the UI. How easy is it to do what you want to do? How "pleasant" and intuitive is the display? It is not for nothing that the title of one of the key books on user experience is _Don't Make Me Think_. |
| |
| [Apache Royale](https://royale.apache.org/) provides tools, structures, features, and component sets that help you create a user interface that helps your end-users do what they want to do. |
| |
| * [Component Sets](component-sets) |
| * [Basic](component-sets/basic) |
| * [Jewel](component-sets/jewel) |
| * [Layouts](user-interface/layouts) |
| * [View States](/features/view-states) |
| * Alerts |
| * Styles and CSS |
| * Localization |
| * Internationalization |
| * Graphics |
| * Rich media |
