Adding a graphical user interface to older electronic devices

Abstract

1. Name of the product in this design: Adding a graphical user interface to an old electronic device. 2. Intended use of this design: for use in an electronic device. 3. The key design features of this product are its graphical user interface content. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: The graphical user interface of this design is used to add legacy items. The main view is the product details page, and the current interface displays the trade-in activity. When the user clicks the "Add Old Item" button in the lower right corner of the interface, the interface changes as shown in Figure 1. In the interface change state diagram 1, the user needs to select the primary category of the old product. After the selection is completed, the interface change state diagram 2 will be displayed. In the interface change state diagram 2, the user needs to select the second-level category of the old product. After the selection is completed, the interface change state diagram 3 will be displayed. In the interface change state diagram 3, the user needs to select the old device brand. After the selection is completed, the interface change state diagram 4 is displayed, showing the selected old device category. 6. Other situations requiring explanation: Other explanation: "××" in the interface represents variable text or numbers, and a single gray block represents the content screen.

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