Open-source alternatives to XPopup

This is an Android context menu library and UI component toolkit used to create animated, context-sensitive overlay menus that render above the existing view hierarchy. It functions as a navigation framework for implementing interactive menu components and transitions, allowing users to access secondary actions without leaving the primary screen. The library utilizes a fragment-based menu manager to handle the existence and state of menu components by injecting dedicated fragments into the activity window. It provides a set of customizable view-group compositions and a property-based animatio

This project is a React tooltip component and CSS-driven library used to display descriptive text bubbles when users hover over or focus on specific elements. It functions as an accessible UI widget and customizable framework for managing informational popovers within React applications. The library distinguishes itself through flexible anchor management, allowing a single tooltip instance to be linked to multiple trigger elements via CSS selectors or HTML data attribute binding. It provides specific controls for visibility timing and animation, as well as the ability to disable automatic sty

Vaul is a React drawer component used to create accessible, draggable bottom sheets and slide-up panels. It serves as a mobile-friendly alternative to traditional dialogs and modals by rendering content into a separate DOM node via a portal to avoid layout nesting issues. The library features configurable snap points that allow panels to lock into specific vertical heights during drag gestures. It supports hierarchical UI layering, enabling the use of nested drawers for complex navigation or multi-level menus. The component includes an accessibility layer with ARIA announcements and focus ma

AndroidSlidingUpPanel is an Android custom view component and sliding panel library used to create draggable overlays that slide up from the bottom of an application screen. It functions as a nested scrolling UI framework that coordinates touch events between a draggable panel and its internal scrollable content. The library distinguishes itself through a parallax effect implementation that shifts background content at different speeds than the foreground panel. It supports the definition of intermediate anchor points to create partial-view states and allows for transition physics customizati

PopupView is a SwiftUI popup library and modal view manager used to display toasts and floating alerts over active screens. It functions as an overlay animation framework and notification system for rendering non-intrusive UI elements within a SwiftUI user interface. The library provides tools for overlay popup rendering and notification management, allowing for the creation of custom views that appear above primary application content. It includes capabilities for popup background customization and layout configuration to manage screen positioning and padding. The system handles modal state

BoomMenu is an Android radial menu library and UI animation framework designed to create expandable floating action buttons. It provides a set of programmable custom view components that reveal submenu items in radial, horizontal, or vertical patterns using 3D transformations. The library distinguishes itself through a 3D-transformation animation engine that utilizes non-linear easing, scaling, and rotation to create depth during menu expansion. It includes specialized layout patterns for share-style menus and a coordinate-based mapping system for precise item displacement. The framework cov

FloatWindow is an Android library for creating draggable overlay views that persist across different applications and activities. It provides specialized components for implementing floating windows, managing system-level overlay permissions, and calculating screen coordinates. The project features a window animation framework that enables snap-to-edge behaviors and custom movement animations. It includes an overlay permission manager to request and monitor the system permissions required to draw interfaces over other applications. The toolkit covers UI positioning using absolute pixels or r

Dialogplus is an Android dialog UI library and layout framework providing a collection of customizable pop-up windows and reusable interface elements. It serves as a toolkit for organizing list, grid, and custom view content within mobile screen overlays. The library enables the rendering of pop-up windows with tailored headers, footers, and content areas. It includes systems for placing these overlays at the top, center, or bottom of the display using built-in animations and predefined layout patterns. The framework supports flexible content organization through the use of scrollable lists,

SmartRefreshLayout is a pull-to-refresh framework and gesture interaction library for Android. It provides a scroll view wrapper that integrates interactive refresh headers and loading footers into mobile user interfaces, coordinating synchronized scrolling and touch events. The project features a pluggable architecture for custom refresh indicators and secondary refresh mechanisms. It utilizes damping-based gesture translation and overscroll rebound mechanisms to manage the tactile feel of drag resistance and physics-based animations. The library covers a broad range of interaction logic, i

CoordinatorTabLayout is a custom Android user interface component that integrates tabbed navigation with folding headers and paging container synchronization. Built for the native Android view system, it implements Material Design patterns to create immersive screens where header content collapses as the user scrolls. The component synchronizes tab selection events with a paging container to update visible content. It manages the coordination between a tab navigation bar and a folding header, ensuring that scrolling events and page transitions remain aligned. The layout includes capabilities

Tether is a DOM positioning engine designed to anchor floating user interface elements, such as tooltips and dropdowns, to target elements. It functions as a logic engine for managing the placement of overlays and synchronizing the position of secondary elements relative to primary anchors. The system includes collision detection and overflow prevention to ensure that floating menus and overlays remain within the visible viewport. It automatically repositions elements when they encounter page boundaries to prevent visual clipping. The tool manages dynamic element alignment and tracking durin

Modal bottom sheet is a cross-platform mobile UI framework plugin for Flutter that renders advanced modal bottom sheets and interactive overlay components. It provides a specialized routing mechanism for custom route-based modal presentations, layout utilities for edge-to-edge safe area inset handling, gesture interception systems for nested scroll view coordination, and navigation structures for sequential modal overlay stacking. The library supports platform-adaptive widget styling that dynamically switches between Material Design and iOS Cupertino visual guidelines based on the host platfo

PopupDialog is a Swift UI component library for iOS that provides a custom modal overlay system. It serves as a flexible replacement for the standard system alert controller, allowing for the creation of stylized popups and alerts with custom layouts. The library distinguishes itself through the ability to embed arbitrary view controllers directly into the dialog body. It includes a centralized theme configuration system to maintain consistent visual styles for containers, overlays, and buttons across an entire application. The project covers a broad range of layout and behavioral controls,

BadgeView is a custom UI component for Android that displays numeric or text notification indicators on other view elements. It is built as a Material Design component that functions as an animated and interactive view for signaling alerts or item counts. The component distinguishes itself through support for drag-to-dismiss gestures, allowing users to remove alerts from the screen via touch interactions. It also utilizes smooth visibility animations to transition state changes rather than using immediate shifts. The library covers broad UI capabilities including content management for updat

ReactXP is a framework for building cross-platform mobile and web applications from a single codebase using React. It provides a declarative interface that maps to different native implementation sets depending on the target environment. The project enables consistent visual experiences across operating systems through a flexbox-based layout engine, a virtual stack for navigation management, and a unified native-bridge API for accessing system services. It distinguishes itself with specialized capabilities for declarative animation orchestration, platform-specific logic resolution, and an aut

Tamagui is a cross-platform user interface framework designed to build high-performance, themeable applications that share logic and styling across web and mobile environments. It functions as a comprehensive design system orchestrator, providing a collection of type-safe components that compile to optimized atomic CSS for the web and native code for mobile platforms. By utilizing a build-time compiler, the framework eliminates runtime overhead, ensuring consistent visual output and interaction behavior regardless of the target platform. The framework distinguishes itself through its advanced

This project is a cross-platform UI component for React Native applications that provides a customizable overlay window for presenting content on top of existing application views. It serves as a library for managing animated modal components, backdrops, and mobile transitions. The component distinguishes itself through support for custom enter and exit animations and highly configurable backdrops, allowing for the adjustment of opacity, color, and the integration of custom elements. It also implements gesture-based dismissal, enabling users to close overlays via background taps or swipes in

This project is a technical guide and implementation library for advanced visual effects and hardware-accelerated animations using the Core Animation framework on iOS. It provides a comprehensive reference for creating high-performance motion graphics, custom graphic rendering, and the construction of 3D engines using perspective transforms and Z-axis manipulation. The collection distinguishes itself through a deep focus on GPU rendering optimization and graphics performance. It covers advanced strategies to maintain high frame rates, such as reducing offscreen rendering via shadow path optim

android-crop is an Android image cropping library and image picker. It provides a reusable view component for selecting and cropping rectangular areas of images within mobile applications. The project includes an interface for launching the system gallery to select photos and a visual tool for users to manually adjust image framing. It manages the process of extracting specific regions of a bitmap and discarding the surrounding pixels.

vue-js-modal is a component library for Vue.js applications that provides a system for creating customizable popup overlays, dialog windows, and dynamic content modals. It allows for the runtime injection of custom components and data into overlay windows to present focused content above the primary user interface. The library features draggable UI windows with capabilities for manual positioning and resizing. It is designed as a server-side rendering compatible component, utilizing style extraction to ensure consistent layout and visual appearance during server-side generation. The system c

SmartTabLayout is an Android user interface navigation component that synchronizes a tabbed navigation strip with the scroll position of a ViewPager. It functions as a layout system that maps page scroll offsets to active tab indicators, providing a visual marker that offers continuous feedback as users swipe through paginated content. The component utilizes an adapter-based system to bind fragment-based page sets to dynamic tab labels. It allows for the replacement of standard tab appearances with custom layouts or user-defined views while maintaining synchronization with the page viewer. T

CircleIndicator is a custom Android UI component that functions as a circular page progress indicator. It provides a graphical interface element that represents completion or progress through a circular arc. The component is designed to track a user's position within a sequence of pages, such as during onboarding flow navigation or linear screen transitions. It visualizes progress through a set of screens to provide feedback during mobile app navigation.

MaterialDesignLibrary is an Android Material Design UI library and cross-version framework. It provides a collection of pre-built interface controls and a compatibility layer that enables modern design patterns on older Android devices starting from version 2.2. The project focuses on bringing updated design standards to legacy Android versions to ensure a consistent user experience. This is achieved through a compatibility layer that implements modern interface elements without sacrificing visual quality on outdated operating system releases. The library includes a variety of functional com

WilliamChart is an Android data visualization library and toolkit used to render interactive charts and graphs within Android applications. It functions as a UI component library for integrating data-driven dashboards and metrics into Android layouts. The library includes a specialized component for representing proportional categorical data as donut charts, which are circular charts with hollow centers. It provides a drawing engine that uses low-level APIs to map numerical data to pixel coordinates on the screen.

This project is a JavaScript UI component library and frontend utility toolkit. It serves as a web modal framework and popup library, providing a specialized system for rendering interactive dialogs, overlays, and layered interfaces over web page content. The library is distinguished by its comprehensive set of overlay tools, including alert dialogs, confirmation prompts, and the ability to embed external content via iframes. It also features a responsive twelve-column grid system for cross-device layout compatibility and an internal modular dependency management system for on-demand loading

Android-ViewPagerIndicator is an Android UI component that provides visual paging indicators for ViewPager screens. It consists of a set of widgets, such as dots or titles, that show the current page position and total count within a paginated layout. The library integrates with the Android SDK and Support Library to provide navigation feedback. It synchronizes visual states with a ViewPager to reflect a user's progress as they swipe through content. The project includes options for indicator styling customization via themes, layout attributes, or programmatic method calls.

UltraViewPager is an Android UI component and ViewPager extension that provides a library of page transition animations and an infinite paging controller for mobile screens. It functions as a reusable interface element for rendering paging containers with custom dimensions and aspect ratios. The project implements circular paging navigation that cycles back to the first page after the final screen is reached, creating a continuous loop. It also includes a timer-driven mechanism for automated content rotation and a coordinate-based engine to interpolate view positions and alpha values during p