en.Wedoany.com Reported - Huawei's HarmonyOS SDK has introduced three system-level window capabilities—Live Window, Floating Control Window, and Multi-Window Collaboration—aimed at addressing application adaptation and interaction efficiency issues across multiple device form factors. These capabilities consolidate common functions into the system layer to reduce development costs and enhance the user experience across all scenarios.

The Live Window, by integrating geofencing capabilities, has shifted from users actively searching for information to the system automatically pushing notifications. This feature, based on system-level location awareness, triggers live reminders after determining user intent—for example, displaying a pickup code when approaching a courier station (Cainiao's HarmonyOS app daily active users increased by 3.5%, with card click-through rates surging by 82%), showing tickets upon arrival at a scenic spot (Meituan data indicates a 30% improvement in entry efficiency and a 70% reduction in ticket inspection processes), and automatically clocking in when entering a company's premises. Technical advantages include on-device processing of geographic location data, satellite positioning accuracy of less than 10 meters, a first-time positioning success rate exceeding 99.8%, and a response time of less than 0.2 seconds. Currently, the Live Window supports over 30 scenarios, has been integrated into more than 330 applications, provides over 400 million real-time reminders per month, and sees a daily creation volume exceeding 300,000.

The Floating Control Window offers a floating monitoring capability for scenarios requiring real-time information attention, such as in finance. Based on this capability, Industrial Securities has launched a dual-form floating window featuring "Floating Control Ball + Large Window Mode." The Floating Control Ball mode compresses key information into a dynamic desktop ball, while the Large Window mode can be expanded with one click into a floating window displaying real-time market data. This capability provides four standard UI templates, supports self-adaptation across multiple devices including portrait and landscape orientations, and foldable and expandable states, with an integration code volume of approximately 300 to 1,000 lines and a joint debugging cycle of about one week.

The Multi-Window Collaboration capability supports multi-instance isolation and free split-screen within applications. WPS's HarmonyOS app has achieved a 50% improvement in development efficiency by integrating this capability. Its core technologies include: a breakpoint-based responsive layout that defines horizontal and vertical breakpoints and dynamically switches layout modes based on window size;

This approach enables a single set of code to be compatible with various form factors such as bar phones, small foldables, dual-fold devices, triple-fold devices, and tablets. To address the issue of insufficient single-screen logical width (less than 375vp) on foldable devices, it employs proportional scaling and breakpoint response mechanisms to resolve layout misalignment;

Additionally, UIAbility is configured in multiton mode, allowing each document to run independently, supporting free dragging and side-by-side display of multiple windows, enabling triple-screen parallel work on triple-fold devices.

Through one-time development covering multiple endpoints, integration of system-level capabilities, unified user experience design, and on-device privacy and security processing, the HarmonyOS SDK achieves an efficient closed loop for cross-device collaboration.

These window capabilities offload common issues to the system, allowing developers to focus on business innovation and driving the ecosystem from "adapting to devices" toward "serving scenarios." The data mentioned in this article are all results from internal laboratory tests.

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