Open-source alternatives to Crescento

This is a custom Android view designed for rendering high-resolution images using subsampling and tiling to prevent memory overflows. It serves as an interactive image component that supports pinch-to-zoom, panning, and double-tap animations. The project is distinguished by its rendering engine, which loads low-resolution previews and high-resolution tiles to enable the efficient navigation of massive image files. It includes a coordinate mapper that converts screen touch points into raw image pixel coordinates and vice versa during scaling and panning. The view provides a broad set of capab

WobbleView is an implementation of a recently popular wobble effect for any view in your app. It can be used to easily add dynamics to user interactions and transitions.

Paging view controller with customizable menu in Swift

Android Library that lights items for tutorials or walk-throughs etc...

SAHistoryNavigationViewController realizes iOS task manager like UI in UINavigationContoller. Support 3D Touch!

FloatingView can make the target view floating above the anchor view with cool animation

:fireworks: A well-designed local image and video selector for Android

⚡️A highly customizable, powerful and easy-to-use alerting library for Android.

PhotoView is a custom Android view implementation designed to display high-resolution images with native support for zoom and pan gestures. It provides a zoomable image view and a matrix controller to manage how images are scaled and translated within a mobile user interface. The library handles the detection of pinch-to-zoom and tap gestures to enable interactive image navigation. It manages the transformation matrix of the image to ensure smooth magnification and provides viewport constraints to align photo edges with screen boundaries. The project covers the broader requirements of mobile

cardslib is an Android UI component library and card layout framework. It provides a set of specialized adapters and views designed as an extension for high-performance card rendering within recycling lists. The library distinguishes itself through a reorderable list implementation that supports drag-and-drop item rearrangement and nested content hierarchies. It also includes an interaction system for managing directional swipe constraints and a customizable undo action notification bar. The framework covers a broad range of card-based interface capabilities, including the composition of vis

Litho is an Android declarative UI framework and component library used to build user interfaces through a declarative API and immutable state. It functions as an asynchronous layout engine that maps components to a structured view hierarchy to automate view updates. The framework optimizes rendering performance by computing element positions on background threads to prevent blocking the main UI thread. It further improves efficiency by flattening nested view hierarchies and caching layout results. The system includes capabilities for state reconciliation, component recycling, and the render

A UITextField with bouncy placeholder.

CircleImageView is a custom Android UI component that renders rectangular images as perfect circles with smooth antialiased edges. It functions as an extension of the native Android image view, overriding the drawing pipeline to provide specialized circular masking. The component specifically supports the creation of user profile avatars by providing customizable borders, internal padding, and background fill colors. These visual styles can be defined through custom XML attributes during the view initialization process.

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.

TapTargetView is a set of UI components designed for user onboarding and feature discovery. It provides visual callouts, focus indicators, and markers that direct user attention toward specific screen elements to introduce new or hidden functionality. The system implements Material Design guidelines for its feature discovery UI, ensuring that visual highlights and interactive callouts remain consistent with standardized design specifications. It supports the creation of interactive product tours by chaining multiple interaction points into a sequential path. This is achieved through coordina

Simple Swift in-app notifications

MaterialDrawer is a navigation drawer library and side menu framework for Android applications. It provides a Material Design UI component that implements a sliding side menu to manage user movement between different sections of a mobile application. The framework supports the organization of complex navigation lists, including the use of expandable sections, sticky headers, and badges. It includes tools for building personalized interfaces, such as user profile displays and headers. The library handles navigation through item management, event handling via listeners, and state-driven UI upd

Kit for building custom gauges easy reproducible Apple's style ring gauges.

nprogress is a lightweight JavaScript UI component and web progress bar library. It provides a minimalist DOM progress indicator used to track the state of asynchronous operations within a browser document. The library allows for the visualization of loading states through a thin progress bar and spinner. It supports progress state management, enabling the bar to be started, stopped, or marked as complete, with support for incremental progress tracking and percentage-based updates. Users can modify the visual style by overriding default CSS or replacing the markup template. The component als

ComponentKit is a declarative UI framework for building iOS interfaces through composition of small, reusable components. It provides a structured approach to constructing user interfaces where each component is defined as an immutable, pure function of its inputs, enabling predictable rendering and state management. The framework supports both stateless and stateful components, with controllers that can be attached to manage persistent state across component updates. The framework distinguishes itself through its component architecture that emphasizes explicit data flow and compile-time safe

material-dialogs is a Kotlin UI component library that provides a collection of modal dialogs and bottom sheets for Android applications. It is designed to implement user interface elements that follow Material Design standards. The library provides specialized modal interfaces for selecting calendar dates, clock times, and specific color values. It also includes system chooser integrations for selecting files and directories from local storage. Beyond pickers, the library covers a broader range of interaction components including text input dialogs, modal alerts with action buttons, and bot

🔁 A custom refresh indicator for flutter.